Bank of America (BAC) 10-Q 30 Jul 18 2018 Q2 Quarterly report Financial data

Document and Entity Information

Document and Entity Information - shares	6 Months Ended
	Jun. 30, 2018	Jul. 27, 2018
Document and Entity Information [Abstract]
Entity Registrant Name	BANK OF AMERICA CORP /DE/
Entity Central Index Key	70,858
Current Fiscal Year End Date	--12-31
Entity Filer Category	Large Accelerated Filer
Document Type	10-Q
Document Period End Date	Jun. 30, 2018
Document Fiscal Year Focus	2,018
Document Fiscal Period Focus	Q2
Amendment Flag	false
Entity Common Stock, Shares Outstanding		9,988,249,714

Consolidated Statement of Incom

Consolidated Statement of Income - USD ($) shares in Millions, $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Interest income
Loans and leases	$ 10,071	$ 8,920	$ 19,694	$ 17,674
Debt securities	2,856	2,594	5,660	5,135
Federal funds sold and securities borrowed or purchased under agreements to resell	709	560	1,331	999
Trading account assets	1,198	1,163	2,334	2,239
Other interest income	1,535	909	2,949	1,809
Total interest income	16,369	14,146	31,968	27,856
Interest expense
Deposits	943	346	1,703	628
Short-term borrowings	1,462	917	2,597	1,564
Trading account liabilities	348	307	705	571
Long-term debt	1,966	1,590	3,705	3,049
Total interest expense	4,719	3,160	8,710	5,812
Net interest income	11,650	10,986	23,258	22,044
Noninterest income
Card income	1,542	1,469	2,999	2,918
Service charges	1,954	1,977	3,875	3,895
Investment and brokerage services	3,458	3,460	7,122	6,877
Investment banking income	1,422	1,532	2,775	3,116
Trading account profits	2,315	1,956	5,014	4,287
Other income	268	1,449	691	1,940
Total noninterest income	10,959	11,843	22,476	23,033
Total revenue, net of interest expense	22,609	22,829	45,734	45,077
Provision for credit losses	827	726	1,661	1,561
Noninterest expense
Personnel	7,944	8,040	16,424	16,515
Occupancy	1,022	1,001	2,036	2,001
Equipment	415	427	857	865
Marketing	395	442	740	774
Professional fees	399	485	780	941
Data processing	797	773	1,607	1,567
Telecommunications	166	177	349	368
Other general operating	2,146	2,637	4,388	5,044
Total noninterest expense	13,284	13,982	27,181	28,075
Income before income taxes	8,498	8,121	16,892	15,441
Income tax expense	1,714	3,015	3,190	4,998
Net income	6,784	5,106	13,702	10,443
Preferred stock dividends	318	361	746	863
Net income applicable to common shareholders	$ 6,466	$ 4,745	$ 12,956	$ 9,580
Per common share information
Earnings (in dollars per share)	$ 0.64	$ 0.47	$ 1.26	$ 0.95
Diluted earnings (in dollars per share)	0.63	0.44	1.25	0.89
Dividends paid (in dollars per share)	$ 0.12	$ 0.075	$ 0.240	$ 0.15
Average common shares issued and outstanding (in shares)	10,181.7	10,013.5	10,251.7	10,056.1
Average diluted common shares issued and outstanding (in shares)	10,309.4	10,834.8	10,389.9	10,876.7

Consolidated Statement of Compr

Consolidated Statement of Comprehensive Income - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Statement of Comprehensive Income [Abstract]
Net income	$ 6,784	$ 5,106	$ 13,702	$ 10,443
Other comprehensive income (loss), net-of-tax:
Net change in debt and equity securities	(1,031)	568	(4,994)	469
Net change in debit valuation adjustments	179	(78)	452	(69)
Net change in derivatives	(92)		(367)
Net change in derivatives		94		132
Employee benefit plan adjustments	30	27	60	54
Net change in foreign currency translation adjustments	(141)	100	(189)	97
Other comprehensive income (loss)	(1,055)	711	(5,038)	683
Comprehensive income	$ 5,729	$ 5,817	$ 8,664	$ 11,126

Consolidated Balance Sheet

Consolidated Balance Sheet - USD ($) $ in Millions	Jun. 30, 2018	Dec. 31, 2017
Assets
Cash and due from banks	$ 29,365	$ 29,480
Interest-bearing deposits with the Federal Reserve, non-U.S. central banks and other banks	141,834	127,954
Cash and cash equivalents	171,199	157,434
Time deposits placed and other short-term investments	8,212	11,153
Federal funds sold and securities borrowed or purchased under agreements to resell (includes $59,763 and $52,906 measured at fair value)	226,486	212,747
Trading account assets (includes $103,145 and $106,274 pledged as collateral)	203,420	209,358
Derivative assets	45,210	37,762
Debt securities:
Carried at fair value	275,256	315,117
Held-to-maturity, at cost (fair value – $158,231 and $123,299)	163,013	125,013
Total debt securities	438,269	440,130
Loans and leases	935,824	936,749
Allowance for loan and lease losses	(10,050)	(10,393)
Loans and leases, net of allowance	925,774	926,356
Premises and equipment, net	9,537	9,247
Goodwill	68,951	68,951
Loans held-for-sale (includes $2,845 and $2,156 measured at fair value)	6,511	11,430
Customer and other receivables	57,813	61,623
Other assets (includes $21,883 and $22,581 measured at fair value)	130,288	135,043
Total assets	2,291,670	2,281,234
Deposits in U.S. offices:
Noninterest-bearing	420,995	430,650
Interest-bearing (includes $513 and $449 measured at fair value)	811,193	796,576
Deposits in non-U.S. offices:
Noninterest-bearing	14,247	14,024
Interest-bearing	63,256	68,295
Total deposits	1,309,691	1,309,545
Federal funds purchased and securities loaned or sold under agreements to repurchase (includes $32,724 and $36,182 measured at fair value)	177,903	176,865
Trading account liabilities	87,028	81,187
Derivative liabilities	33,605	34,300
Short-term borrowings (includes $3,396 and $1,494 measured at fair value)	40,622	32,666
Accrued expenses and other liabilities (includes $21,178 and $22,840 measured at fair value and $787 and $777 of reserve for unfunded lending commitments)	152,010	152,123
Long-term debt (includes $28,377 and $31,786 measured at fair value)	226,595	227,402
Total liabilities	2,027,454	2,014,088
Commitments and contingencies (Note 7 – Securitizations and Other Variable Interest Entities and Note 10 – Commitments and Contingencies)
Shareholders’ equity
Preferred stock, $0.01 par value; authorized – 100,000,000 shares; issued and outstanding – 3,872,702 and 3,837,683 shares	23,181	22,323
Common stock and additional paid-in capital, $0.01 par value; authorized – 12,800,000,000 shares; issued and outstanding – 10,012,719,225 and 10,287,302,431 shares	128,822	138,089
Retained earnings	125,546	113,816
Accumulated other comprehensive income (loss)	(13,333)	(7,082)
Total shareholders’ equity	264,216	267,146
Total liabilities and shareholders’ equity	2,291,670	2,281,234
Consolidated VIEs
Assets
Trading account assets (includes $103,145 and $106,274 pledged as collateral)	5,692	6,521
Debt securities:
Loans and leases	45,483	48,929
Allowance for loan and lease losses	(959)	(1,016)
Loans and leases, net of allowance	44,524	47,913
Loans held-for-sale (includes $2,845 and $2,156 measured at fair value)	3	27
Other assets (includes $21,883 and $22,581 measured at fair value)	396	1,694
Total assets	50,615	56,155
Deposits in non-U.S. offices:
Short-term borrowings (includes $3,396 and $1,494 measured at fair value)	396	312
Long-term debt (includes $28,377 and $31,786 measured at fair value)	9,865	9,873
All other liabilities (includes $37 and $34 of non-recourse liabilities)	39	37
Total liabilities	$ 10,300	$ 10,222

Consolidated Balance Sheet (Par

Consolidated Balance Sheet (Parenthetical) - USD ($) $ in Millions	Jun. 30, 2018	Dec. 31, 2017
Assets
Federal funds sold and securities borrowed or purchased under agreements to resell measured at fair value	$ 59,763	$ 52,906
Trading account assets, pledged as collateral	103,145	106,274
Debt securities:
Held-to-maturity, fair value	158,231	123,299
Loans and leases, measured at fair value	6,227	5,710
Loans held-for-sale, measured at fair value	2,845	2,156
Other assets, measured at fair value	21,883	22,581
Deposits in U.S. offices:
Interest-bearing, measured at fair value	513	449
Federal funds purchased and securities loaned or sold under agreements to repurchase, measured at fair value	32,724	36,182
Short-term borrowings, measured at fair value	3,396	1,494
Accrued expenses and other liabilities, measured at fair value	21,178	22,840
Accrued expenses and other liabilities, reserve for unfunded lending commitments	787	777
Long-term debt, measured at fair value	$ 28,377	$ 31,786
Shareholders’ equity
Preferred stock, par value (in dollars per share)	$ 0.01	$ 0.01
Preferred stock authorized (in shares)	100,000,000	100,000,000
Preferred stock issued (in shares)	3,872,702	3,837,683
Preferred stock outstanding (in shares)	3,872,702	3,837,683
Common stock par value (in dollars per share)	$ 0.01	$ 0.01
Common stock authorized (in shares)	12,800,000,000	12,800,000,000
Common stock issued (in shares)	10,012,719,225	10,287,302,431
Common stock outstanding (in shares)	10,012,719,225	10,287,302,431
Consolidated VIEs | Long-term debt
Shareholders’ equity
Non-recourse debt	$ 9,864	$ 9,872
Consolidated VIEs | Other liabilities
Shareholders’ equity
Non-recourse debt	$ 37	$ 34

Consolidated Statement of Chang

Consolidated Statement of Changes in Shareholders' Equity - USD ($) shares in Millions, $ in Millions	Total	Preferred Stock	Common Stock and Additional Paid-in Capital	Retained Earnings	Accumulated Other Comprehensive Income (Loss)
Beginning Balance at Dec. 31, 2016	$ 266,195	$ 25,220	$ 147,038	$ 101,225	$ (7,288)
Beginning Balance (in shares) at Dec. 31, 2016			10,052.6
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	10,443			10,443
Net change in debt and equity securities	469				469
Net change in debit valuation adjustments	(69)				(69)
Net change in derivatives	132				132
Employee benefit plan adjustments	54				54
Net change in foreign currency translation adjustments	97				97
Dividends declared:
Common	(1,504)			(1,504)
Preferred	(863)			(863)
Common stock issued under employee plans, net and other (in shares)			36.2
Common stock issued under employee plans, net and other	670		$ 670
Common stock repurchased (in shares)			(210.7)
Common stock repurchased	(4,964)		$ (4,964)
Ending Balance at Jun. 30, 2017	270,660	25,220	$ 142,744	109,301	(6,605)
Ending Balance (in shares) at Jun. 30, 2017			9,878.1
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Cumulative adjustment for adoption of hedge accounting standard	25			(32)	57
Beginning Balance at Dec. 31, 2017	267,146	22,323	$ 138,089	113,816	(7,082)
Beginning Balance (in shares) at Dec. 31, 2017			10,287.3
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Adoption of accounting standard related to certain tax effects stranded in accumulated other comprehensive income (loss)	0			1,270	(1,270)
Net income	13,702			13,702
Net change in debt and equity securities	(4,994)				(4,994)
Net change in debit valuation adjustments	452				452
Net change in derivatives	(367)				(367)
Employee benefit plan adjustments	60				60
Net change in foreign currency translation adjustments	(189)				(189)
Dividends declared:
Common	(2,455)			(2,455)
Preferred	(746)			(746)
Issuance of preferred stock	3,671	3,671
Redemption of preferred stock	(2,813)	(2,813)
Common stock issued under employee plans, net and other (in shares)			43.7
Common stock issued under employee plans, net and other	547		$ 556	(9)
Common stock repurchased (in shares)			(318.3)
Common stock repurchased	(9,823)		$ (9,823)
Ending Balance at Jun. 30, 2018	$ 264,216	$ 23,181	$ 128,822	$ 125,546	$ (13,333)
Ending Balance (in shares) at Jun. 30, 2018			10,012.7

Consolidated Statement of Cash

Consolidated Statement of Cash Flows - USD ($) $ in Millions	6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017
Operating activities
Net income	$ 13,702	$ 10,443
Adjustments to reconcile net income to net cash provided by (used in) operating activities:
Provision for credit losses	1,661	1,561
Gains on sales of debt securities	(3)	(153)
Depreciation and premises improvements amortization	755	743
Amortization of intangibles	269	322
Net amortization of premium/discount on debt securities	909	1,065
Deferred income taxes	1,782	3,515
Stock-based compensation	877	765
Loans held-for-sale:
Originations and purchases	(11,709)	(18,103)
Proceeds from sales and paydowns of loans originally classified as held for sale and instruments from related securitization activities	17,246	21,106
Net change in:
Trading and derivative instruments	(1,295)	(24,312)
Other assets	9,381	(7,704)
Accrued expenses and other liabilities	399	4,450
Other operating activities, net	(138)	2,962
Net cash provided by (used in) operating activities	33,836	(3,340)
Net change in:
Time deposits placed and other short-term investments	2,941	(291)
Federal funds sold and securities borrowed or purchased under agreements to resell	(13,739)	(18,977)
Debt securities carried at fair value:
Proceeds from sales	1,194	40,704
Proceeds from paydowns and maturities	37,774	47,492
Purchases	(31,762)	(87,188)
Held-to-maturity debt securities:
Proceeds from paydowns and maturities	7,820	7,644
Purchases	(22,110)	(9,935)
Loans and leases:
Proceeds from sales of loans originally classified as held for investment and instruments from related securitization activities	7,172	5,317
Purchases	(2,656)	(3,195)
Other changes in loans and leases, net	(5,755)	(14,758)
Other investing activities, net	(1,748)	9,262
Net cash used in investing activities	(20,869)	(23,925)
Net change in:
Deposits	146	2,046
Federal funds purchased and securities loaned or sold under agreements to repurchase	996	26,283
Short-term borrowings	7,956	12,404
Long-term debt:
Proceeds from issuance	42,426	33,633
Retirement	(37,264)	(29,650)
Preferred stock:
Proceeds from issuance	3,671	0
Redemption	(2,813)	0
Common stock repurchased	(9,823)	(4,964)
Cash dividends paid	(3,245)	(2,403)
Other financing activities, net	(533)	(582)
Net cash used in financing activities	1,517	36,767
Effect of exchange rate changes on cash and cash equivalents	(719)	1,464
Net increase in cash and cash equivalents	13,765	10,966
Cash and cash equivalents at January 1	157,434	147,738
Cash and cash equivalents at June 30	$ 171,199	$ 158,704

Summary of Significant Accounti

Summary of Significant Accounting Principles	6 Months Ended
	Jun. 30, 2018
Accounting Policies [Abstract]
Summary of Significant Accounting Principles	Summary of Significant Accounting Principles Bank of America Corporation, a bank holding company and a financial holding company, provides a diverse range of financial services and products throughout the U.S. and in certain international markets. The term “the Corporation” as used herein may refer to Bank of America Corporation, individually, Bank of America Corporation and its subsidiaries, or certain of Bank of America Corporation’s subsidiaries or affiliates. Principles of Consolidation and Basis of Presentation The Consolidated Financial Statements include the accounts of the Corporation and its majority-owned subsidiaries and those variable interest entities (VIEs) where the Corporation is the primary beneficiary. Intercompany accounts and transactions have been eliminated. Results of operations of acquired companies are included from the dates of acquisition and for VIEs, from the dates that the Corporation became the primary beneficiary. Assets held in an agency or fiduciary capacity are not included in the Consolidated Financial Statements. The Corporation accounts for investments in companies for which it owns a voting interest and for which it has the ability to exercise significant influence over operating and financing decisions using the equity method of accounting. These investments are included in other assets. Equity method investments are subject to impairment testing, and the Corporation’s proportionate share of income or loss is included in other income. The preparation of the Consolidated Financial Statements in conformity with accounting principles generally accepted in the United States of America (GAAP) requires management to make estimates and assumptions that affect reported amounts and disclosures. Realized results could materially differ from those estimates and assumptions. These unaudited Consolidated Financial Statements should be read in conjunction with the audited Consolidated Financial Statements of the Corporation’s 2017 Annual Report on Form 10-K. The nature of the Corporation’s business is such that the results of any interim period are not necessarily indicative of results for a full year. In the opinion of management, all adjustments, which consist of normal recurring adjustments necessary for a fair statement of the interim period results, have been made. The Corporation evaluates subsequent events through the date of filing with the Securities and Exchange Commission (SEC). Certain prior-period amounts have been reclassified to conform to current period presentation. Change in Tax Law On December 22, 2017, the President signed into law the Tax Cuts and Jobs Act (the Tax Act) which made significant changes to federal income tax law including, among other things, reducing the statutory corporate income tax rate to 21 percent from 35 percent and changing the taxation of the Corporation’s non-U.S. business activities. On the same date, the SEC issued Staff Accounting Bulletin No. 118 which specifies, among other things, that reasonable estimates of the income tax effects of the Tax Act should be used, if determinable. The Corporation has accounted for the effects of the Tax Act using reasonable estimates based on currently available information and its interpretations thereof. This accounting may change due to, among other things, changes in interpretations the Corporation has made and the issuance of new tax or accounting guidance. Accounting Standards Adopted on January 1, 2018 Effective January 1, 2018, the Corporation adopted the following new accounting standards on a prospective basis. For additional information, see Note 1 – Summary of Significant Accounting Principles to the Consolidated Financial Statements of the Corporation’s 2017 Annual Report on Form 10-K. ● Revenue Recognition – The new accounting standard addresses the recognition of revenue from contracts with customers. For additional information, see Revenue Recognition Accounting Policies in this Note, Note 2 – Noninterest Income and Note 17 – Business Segment Information . ● Hedge Accounting – The new accounting standard simplifies and expands the ability to apply hedge accounting to certain risk management activities. For additional information, see Note 3 – Derivatives . ● Recognition and Measurement of Financial Assets and Liabilities – The new accounting standard relates to the recognition and measurement of financial instruments, including equity investments. For additional information, see Note 4 – Securities and Note 16 – Fair Value of Financial Instruments. ● Tax Effects in Accumulated Other Comprehensive Income – The new accounting standard addresses certain tax effects stranded in accumulated other comprehensive income (OCI) related to the Tax Act. For additional information, see Note 12 – Accumulated Other Comprehensive Income (Loss) . Effective January 1, 2018, the Corporation adopted the following new accounting standards on a retrospective basis, resulting in restatement of all prior periods presented in the Consolidated Statement of Income and the Consolidated Statement of Cash Flows. The changes in presentation are not material to the individual line items affected. ● Presentation of Pension Costs – The new accounting standard requires separate presentation of the service cost component of pension expense from all other components of net pension benefit/cost in the Consolidated Statement of Income. As a result, the service cost component continues to be presented in personnel expense while other components of net pension benefit/cost (e.g., interest cost, actual return on plan assets, amortization of prior service cost) are now presented in other general operating expense. ● Classification of Cash Flows and Restricted Cash – The new accounting standards address the classification of certain cash receipts and cash payments in the statement of cash flows as well as the presentation and disclosure of restricted cash. For more information on restricted cash, see Note 9 – Federal Funds Sold or Purchased, Securities Financing Agreements, Short-term Borrowings and Restricted Cash . Accounting Standards Issued and Not Yet Adopted Lease Accounting The Financial Accounting Standards Board (FASB) issued a new accounting standard effective on January 1, 2019 that requires substantially all leases to be recorded as assets and liabilities on the balance sheet. On January 5, 2018, the FASB issued an exposure draft proposing an amendment to the standard that, if approved, would permit companies the option to apply the provisions of the new lease standard either prospectively as of the effective date, without adjusting comparative periods presented, or using a modified retrospective transition applicable to all prior periods presented. The Corporation is in the process of reviewing its existing lease portfolios, including certain service contracts for embedded leases, to evaluate the impact of the standard on its consolidated financial statements, as well as the impact to regulatory capital and risk-weighted assets. The effect of the adoption will depend on the lease portfolio at the time of transition and the transition options ultimately available; however, the Corporation does not expect the new accounting standard to have a material impact on its consolidated financial position, results of operations or disclosures in the Notes to the Consolidated Financial Statements. Accounting for Financial Instruments -- Credit Losses The FASB issued a new accounting standard effective on January 1, 2020, with early adoption permitted on January 1, 2019, that will replace the existing measurement of the allowance for credit losses with management’s best estimate of probable credit losses inherent in the Corporation’s lending activities. The new standard will reflect management’s best estimate of all expected credit losses for substantially all of the Corporation’s financial assets that are recognized at amortized cost. The standard also requires expanded credit quality disclosures. The Corporation is in the process of identifying and implementing required changes to credit loss estimation models and processes and evaluating the impact of this new accounting standard, which at the date of adoption is expected to increase the allowance for credit losses with a resulting negative adjustment to retained earnings. The change will be dependent on the characteristics of the Corporation’s portfolio at adoption date as well as the macroeconomic conditions and forecast as of that date. While a final decision has not been made, the Corporation does not expect to early adopt the standard. Significant Accounting Principles Updates Goodwill and Intangible Assets Goodwill is the purchase premium after adjusting for the fair value of net assets acquired. Goodwill is not amortized but is reviewed for potential impairment on an annual basis, or when events or circumstances indicate a potential impairment, at the reporting unit level. A reporting unit is a business segment or one level below a business segment. The Corporation assesses the fair value of each reporting unit against its carrying value, including goodwill, as measured by allocated equity. For purposes of goodwill impairment testing, the Corporation utilizes allocated equity as a proxy for the carrying value of its reporting units. Allocated equity in the reporting units is comprised of allocated capital plus capital for the portion of goodwill and intangibles specifically assigned to the reporting unit. In performing its goodwill impairment testing, the Corporation first assesses qualitative factors to determine whether it is more likely than not that the fair value of a reporting unit is less than its carrying value. Qualitative factors include, among other things, macroeconomic conditions, industry and market considerations, financial performance of the respective reporting unit and other relevant entity- and reporting-unit specific considerations. If the Corporation concludes it is more likely than not that the fair value of a reporting unit is less than its carrying value, a quantitative assessment is performed. If the fair value of the reporting unit exceeds its carrying value, goodwill of the reporting unit is considered not impaired; however, if the carrying value of the reporting unit exceeds its fair value, an additional step must be performed to measure potential impairment. This step involves calculating an implied fair value of goodwill which is the excess of the fair value of the reporting unit, as determined in the first step, over the aggregate fair values of the assets, liabilities and identifiable intangibles as if the reporting unit was being acquired in a business combination. If the implied fair value of goodwill exceeds the goodwill assigned to the reporting unit, there is no impairment. If the goodwill assigned to a reporting unit exceeds the implied fair value of goodwill, an impairment charge is recorded for the excess. An impairment loss recognized cannot exceed the amount of goodwill assigned to a reporting unit. An impairment loss establishes a new basis in the goodwill, and subsequent reversals of goodwill impairment losses are not permitted under applicable accounting guidance. For intangible assets subject to amortization, an impairment loss is recognized if the carrying value of the intangible asset is not recoverable and exceeds fair value. The carrying value of the intangible asset is considered not recoverable if it exceeds the sum of the undiscounted cash flows expected to result from the use of the asset. Intangible assets deemed to have indefinite useful lives are not subject to amortization. An impairment loss is recognized if the carrying value of the intangible asset with an indefinite life exceeds its fair value. Revenue Recognition The following summarizes the Corporation’s revenue recognition accounting policies for certain noninterest income activities. Card Income Card income includes annual, late and over-limit fees as well as fees earned from interchange, cash advances and other miscellaneous transactions and is presented net of direct costs. Interchange fees are recognized upon settlement of the credit and debit card payment transactions and are generally determined on a percentage basis for credit cards and fixed rates for debit cards based on the corresponding payment network’s rates. Substantially all card fees are recognized at the transaction date, except for certain time-based fees such as annual fees, which are recognized over 12 months. Fees charged to cardholders that are estimated to be uncollectible are reserved in the allowance for loan and lease losses. Rewards paid to cardholders are related to points earned by the cardholder that can be redeemed for a broad range of rewards including cash, travel and gift cards. Based on past redemption behavior, card product type, account transaction activity and other historical card performance, the Corporation estimates a liability based on the amount of earned reward points that are expected to be redeemed. The Corporation also makes payments to credit card partners. The payments are based on revenue-sharing agreements that are generally driven by cardholder transactions and partner sales volumes. Service Charges Service charges include deposit and lending-related fees. Deposit-related fees consist of fees earned on consumer and commercial deposit activities and are generally recognized when the transactions occur or as the service is performed. Consumer fees are earned on consumer deposit accounts for account maintenance and various transaction-based services, such as ATM transactions, wire transfer activities, check and money order processing and insufficient funds/overdraft transactions. Commercial deposit-related fees are from the Corporation’s Global Transaction Services business and consist of commercial deposit and treasury management services, including account maintenance and other services, such as payroll, sweep account and other cash management services. Lending-related fees generally represent transactional fees earned from certain loan commitments, financial guarantees and standby letters of credit (SBLCs). Investment and Brokerage Services Investment and brokerage services consist of asset management and brokerage fees. Asset management fees are earned from the management of client assets under advisory agreements or the full discretion of the Corporation’s financial advisors (collectively referred to as assets under management (AUM)). Asset management fees are earned as a percentage of the client’s AUM and generally range from 50 basis points (bps) to 150 bps of the AUM. In cases where a third party is used to obtain a client’s investment allocation, the fee remitted to the third party is recorded net and is not reflected in the transaction price, as the Corporation is an agent for those services. Brokerage fees include income earned from transaction-based services that are performed as part of investment management services and are based on a fixed price per unit or as a percentage of the total transaction amount. Brokerage fees also include distribution fees and sales commissions that are primarily in the Global Wealth & Investment Management ( GWIM ) segment and are earned over time. In addition, primarily in the Global Markets segment, brokerage fees are earned when the Corporation fills customer orders to buy or sell various financial products or when it acknowledges, affirms, settles and clears transactions and/or submits trade information to the appropriate clearing broker. Certain customers pay brokerage, clearing and/or exchange fees imposed by relevant regulatory bodies or exchanges in order to execute or clear trades. These fees are recorded net and are not reflected in the transaction price, as the Corporation is an agent for those services. Investment Banking Income Investment banking income includes underwriting income and financial advisory services income. Underwriting consists of fees earned for the placement of a customer’s debt or equity securities. The revenue is generally earned based on a percentage of the fixed number of shares or principal placed. Once the number of shares or notes is determined and the service is completed, the underwriting fees are recognized. The Corporation incurs certain out-of-pocket expenses, such as legal costs, in performing these services. These expenses are recovered through the revenue the Corporation earns from the customer and are included in operating expenses. Syndication fees represent fees earned as the agent or lead lender responsible for structuring, arranging and administering a loan syndication. Financial advisory services consist of fees earned for assisting customers with transactions related to mergers and acquisitions and financial restructurings. Revenue varies depending on the size and number of services performed for each contract and is generally contingent on successful execution of the transaction. Revenue is typically recognized once the transaction is completed and all services have been rendered. Additionally, the Corporation may earn a fixed fee in merger and acquisition transactions to provide a fairness opinion, with the fees recognized when the opinion is delivered to the customer. Other Revenue Measurement and Recognition Policies The Corporation did not disclose the value of any open performance obligations at June 30, 2018 , as its contracts with customers generally have a fixed term that is less than one year, an open term with a cancellation period that is less than one year, or provisions that allow the Corporation to recognize revenue at the amount it has the right to invoice.

Noninterest Income

Noninterest Income	6 Months Ended
	Jun. 30, 2018
Revenue from Contract with Customer [Abstract]
Noninterest Income	Noninterest Income The table below presents the Corporation’s noninterest income disaggregated by revenue source for the three and six months ended June 30, 2018 and 2017 . For more information, see Note 1 – Summary of Significant Accounting Principles . For a disaggregation of noninterest income by business segment and All Other , see Note 17 – Business Segment Information . Three Months Ended June 30 Six Months Ended June 30 (Dollars in millions) 2018 2017 2018 2017 Card income Interchange fees (1) $ 1,070 $ 983 $ 2,041 $ 1,941 Other card income 472 486 958 977 Total card income 1,542 1,469 2,999 2,918 Service charges Deposit-related fees 1,680 1,696 3,326 3,349 Lending-related fees 274 281 549 546 Total service charges 1,954 1,977 3,875 3,895 Investment and brokerage services Asset management fees 2,513 2,288 5,077 4,488 Brokerage fees 945 1,172 2,045 2,389 Total investment and brokerage services 3,458 3,460 7,122 6,877 Investment banking income Underwriting income 719 709 1,460 1,488 Syndication fees 400 340 716 740 Financial advisory services 303 483 599 888 Total investment banking income 1,422 1,532 2,775 3,116 Trading account profits 2,315 1,956 5,014 4,287 Other income 268 1,449 691 1,940 Total noninterest income $ 10,959 $ 11,843 $ 22,476 $ 23,033 (1) Gross interchange fees were $ 2.4 billion and $ 2.2 billion for the three months ended June 30, 2018 and 2017 , and are presented net of $ 1.3 billion and $ 1.2 billion of expenses for rewards and partner payments. For the six months ended June 30, 2018 and 2017 , gross interchange fees were $4.6 billion and $4.3 billion and are presented net of $2.6 billion and $2.3 billion of expenses for rewards and partner payments.

Derivatives

Derivatives	6 Months Ended
	Jun. 30, 2018
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Derivatives	Derivatives Derivative Balances Derivatives are entered into on behalf of customers, for trading or to support risk management activities. Derivatives used in risk management activities include derivatives that may or may not be designated in qualifying hedge accounting relationships. Derivatives that are not designated in qualifying hedge accounting relationships are referred to as other risk management derivatives. For more information on the Corporation’s derivatives and hedging activities, see Note 1 – Summary of Significant Accounting Principles to the Consolidated Financial Statements of the Corporation’s 2017 Annual Report on Form 10-K . The following tables present derivative instruments included on the Consolidated Balance Sheet in derivative assets and liabilities at June 30, 2018 and December 31, 2017 . Balances are presented on a gross basis, prior to the application of counterparty and cash collateral netting. Total derivative assets and liabilities are adjusted on an aggregate basis to take into consideration the effects of legally enforceable master netting agreements and have been reduced by cash collateral received or paid. June 30, 2018 Gross Derivative Assets Gross Derivative Liabilities (Dollars in billions) Contract/ Notional (1) Trading and Other Risk Management Derivatives Qualifying Hedges Total Trading and Other Risk Management Derivatives Qualifying Hedges Total Interest rate contracts Swaps $ 17,626.4 $ 153.3 $ 1.6 $ 154.9 $ 147.2 $ 4.8 $ 152.0 Futures and forwards 6,464.7 1.4 — 1.4 1.4 — 1.4 Written options 1,328.4 — — — 30.5 — 30.5 Purchased options 1,283.1 31.9 — 31.9 — — — Foreign exchange contracts Swaps 1,941.7 47.4 2.5 49.9 48.7 3.5 52.2 Spot, futures and forwards 5,190.9 52.1 1.2 53.3 49.1 0.5 49.6 Written options 353.5 — — — 5.4 — 5.4 Purchased options 352.5 4.9 — 4.9 — — — Equity contracts Swaps 269.6 5.1 — 5.1 5.4 — 5.4 Futures and forwards 98.2 0.9 — 0.9 0.8 — 0.8 Written options 565.4 — — — 24.2 — 24.2 Purchased options 533.8 35.9 — 35.9 — — — Commodity contracts Swaps 51.0 2.5 — 2.5 5.0 — 5.0 Futures and forwards 63.1 3.3 — 3.3 0.5 — 0.5 Written options 32.1 — — — 2.2 — 2.2 Purchased options 31.3 2.1 — 2.1 — — — Credit derivatives (2) Purchased credit derivatives: Credit default swaps 431.6 4.9 — 4.9 8.9 — 8.9 Total return swaps/options 75.3 0.4 — 0.4 1.1 — 1.1 Written credit derivatives: Credit default swaps 407.6 8.5 — 8.5 4.3 — 4.3 Total return swaps/options 75.3 0.7 — 0.7 0.3 — 0.3 Gross derivative assets/liabilities $ 355.3 $ 5.3 $ 360.6 $ 335.0 $ 8.8 $ 343.8 Less: Legally enforceable master netting agreements (282.1 ) — (282.1 ) Less: Cash collateral received/paid (33.3 ) (28.1 ) Total derivative assets/liabilities $ 45.2 $ 33.6 (1) Represents the total contract/notional amount of derivative assets and liabilities outstanding. (2) The net derivative asset and notional amount of written credit derivatives for which the Corporation held purchased credit derivatives with identical underlying referenced names were $3.6 billion and $418.1 billion at June 30, 2018 . December 31, 2017 Gross Derivative Assets Gross Derivative Liabilities (Dollars in billions) Contract/ Notional (1) Trading and Other Risk Management Derivatives Qualifying Hedges Total Trading and Other Risk Management Derivatives Qualifying Hedges Total Interest rate contracts Swaps $ 15,416.4 $ 175.1 $ 2.9 $ 178.0 $ 172.5 $ 1.7 $ 174.2 Futures and forwards 4,332.4 0.5 — 0.5 0.5 — 0.5 Written options 1,170.5 — — — 35.5 — 35.5 Purchased options 1,184.5 37.6 — 37.6 — — — Foreign exchange contracts Swaps 2,011.1 35.6 2.2 37.8 36.1 2.7 38.8 Spot, futures and forwards 3,543.3 39.1 0.7 39.8 39.1 0.8 39.9 Written options 291.8 — — — 5.1 — 5.1 Purchased options 271.9 4.6 — 4.6 — — — Equity contracts Swaps 265.6 4.8 — 4.8 4.4 — 4.4 Futures and forwards 106.9 1.5 — 1.5 0.9 — 0.9 Written options 480.8 — — — 23.9 — 23.9 Purchased options 428.2 24.7 — 24.7 — — — Commodity contracts Swaps 46.1 1.8 — 1.8 4.6 — 4.6 Futures and forwards 47.1 3.5 — 3.5 0.6 — 0.6 Written options 21.7 — — — 1.4 — 1.4 Purchased options 22.9 1.4 — 1.4 — — — Credit derivatives (2) Purchased credit derivatives: Credit default swaps 470.9 4.1 — 4.1 11.1 — 11.1 Total return swaps/options 54.1 0.1 — 0.1 1.3 — 1.3 Written credit derivatives: Credit default swaps 448.2 10.6 — 10.6 3.6 — 3.6 Total return swaps/options 55.2 0.8 — 0.8 0.2 — 0.2 Gross derivative assets/liabilities $ 345.8 $ 5.8 $ 351.6 $ 340.8 $ 5.2 $ 346.0 Less: Legally enforceable master netting agreements (279.2 ) (279.2 ) Less: Cash collateral received/paid (34.6 ) (32.5 ) Total derivative assets/liabilities $ 37.8 $ 34.3 (1) Represents the total contract/notional amount of derivative assets and liabilities outstanding. (2) The net derivative asset and notional amount of written credit derivatives for which the Corporation held purchased credit derivatives with identical underlying referenced names were $6.4 billion and $435.1 billion at December 31, 2017 . Offsetting of Derivatives The Corporation enters into International Swaps and Derivatives Association, Inc. (ISDA) master netting agreements or similar agreements with substantially all of the Corporation’s derivative counterparties. For additional information, see Note 2 – Derivatives to the Consolidated Financial Statements of the Corporation’s 2017 Annual Report on Form 10-K . The following table presents derivative instruments included in derivative assets and liabilities on the Consolidated Balance Sheet at June 30, 2018 and December 31, 2017 by primary risk (e.g., interest rate risk) and the platform, where applicable, on which these derivatives are transacted. Balances are presented on a gross basis, prior to the application of counterparty and cash collateral netting. Total gross derivative assets and liabilities are adjusted on an aggregate basis to take into consideration the effects of legally enforceable master netting agreements which include reducing the balance for counterparty netting and cash collateral received or paid. For more information on offsetting of securities financing agreements, see Note 9 – Federal Funds Sold or Purchased, Securities Financing Agreements, Short-term Borrowings and Restricted Cash . Offsetting of Derivatives (1) Derivative Assets Derivative Liabilities Derivative Assets Derivative Liabilities (Dollars in billions) June 30, 2018 December 31, 2017 Interest rate contracts Over-the-counter $ 182.0 $ 177.6 $ 211.7 $ 206.0 Over-the-counter cleared 3.2 2.7 1.9 1.8 Foreign exchange contracts Over-the-counter 104.6 104.0 78.7 80.8 Over-the-counter cleared 1.1 0.9 0.9 0.7 Equity contracts Over-the-counter 27.0 16.2 18.3 16.2 Exchange-traded 11.0 10.3 9.1 8.5 Commodity contracts Over-the-counter 3.6 5.0 2.9 4.4 Exchange-traded 1.1 1.2 0.7 0.8 Credit derivatives Over-the-counter 8.1 8.5 9.1 9.6 Over-the-counter cleared 5.9 5.8 6.1 6.0 Total gross derivative assets/liabilities, before netting Over-the-counter 325.3 311.3 320.7 317.0 Exchange-traded 12.1 11.5 9.8 9.3 Over-the-counter cleared 10.2 9.4 8.9 8.5 Less: Legally enforceable master netting agreements and cash collateral received/paid Over-the-counter (295.8 ) (290.4 ) (296.9 ) (294.6 ) Exchange-traded (10.5 ) (10.5 ) (8.6 ) (8.6 ) Over-the-counter cleared (9.1 ) (9.3 ) (8.3 ) (8.5 ) Derivative assets/liabilities, after netting 32.2 22.0 25.6 23.1 Other gross derivative assets/liabilities (2) 13.0 11.6 12.2 11.2 Total derivative assets/liabilities 45.2 33.6 37.8 34.3 Less: Financial instruments collateral (3) (19.2 ) (9.2 ) (11.2 ) (10.4 ) Total net derivative assets/liabilities $ 26.0 $ 24.4 $ 26.6 $ 23.9 (1) Over-the-counter (OTC) derivatives include bilateral transactions between the Corporation and a particular counterparty. OTC-cleared derivatives include bilateral transactions between the Corporation and a counterparty where the transaction is cleared through a clearinghouse, and exchange-traded derivatives include listed options transacted on an exchange. (2) Consists of derivatives entered into under master netting agreements where the enforceability of these agreements is uncertain under bankruptcy laws in some countries or industries. (3) Amounts are limited to the derivative asset/liability balance and, accordingly, do not include excess collateral received/pledged. Financial instruments collateral includes securities collateral received or pledged and cash securities held and posted at third-party custodians that are not offset on the Consolidated Balance Sheet but shown as a reduction to derive net derivative assets and liabilities. ALM and Risk Management Derivatives The Corporation’s asset and liability management (ALM) and risk management activities include the use of derivatives to mitigate risk to the Corporation including derivatives designated in qualifying hedge accounting relationships and derivatives used in other risk management activities. For additional information, see Note 2 – Derivatives to the Consolidated Financial Statements of the Corporation’s 2017 Annual Report on Form 10-K . Derivatives Designated as Accounting Hedges The Corporation uses various types of interest rate and foreign exchange derivative contracts to protect against changes in the fair value of its assets and liabilities due to fluctuations in interest rates and exchange rates (fair value hedges). The Corporation also uses these types of contracts and equity derivatives to protect against changes in the cash flows of its assets and liabilities, and other forecasted transactions (cash flow hedges). The Corporation hedges its net investment in consolidated non-U.S. operations determined to have functional currencies other than the U.S. dollar using forward exchange contracts and cross-currency basis swaps, and by issuing foreign currency-denominated debt (net investment hedges). Effective January 1, 2018, the Corporation early adopted the hedge accounting standard on a prospective basis and, accordingly, prior-period hedge accounting disclosures were not conformed to the current-period presentation. For more information, see Note 1 – Summary of Significant Accounting Principles . Fair Value Hedges The table below summarizes information related to fair value hedges for the three and six months ended June 30, 2018 and 2017 . Gains and Losses on Derivatives Designated as Fair Value Hedges Three Months Ended June 30, 2018 Three Months Ended June 30, 2017 (Dollars in millions) Derivative Hedged Item Derivative Hedged Item Hedge Ineffectiveness Interest rate risk on long-term debt (1) $ (869 ) $ 821 $ 272 $ (422 ) $ (150 ) Interest rate and foreign currency risk on long-term debt (2, 3) (1,067 ) 934 901 (877 ) 24 Interest rate risk on available-for-sale securities (4) (1 ) 1 (80 ) 70 (10 ) Total $ (1,937 ) $ 1,756 $ 1,093 $ (1,229 ) $ (136 ) Six Months Ended June 30, 2018 Six Months Ended June 30, 2017 Derivative Hedged Item Derivative Hedged Item Hedge Ineffectiveness Interest rate risk on long-term debt (1) $ (3,174 ) $ 3,057 $ (478 ) $ 144 $ (334 ) Interest rate and foreign currency risk on long-term debt (2, 3) (745 ) 588 1,024 (1,010 ) 14 Interest rate risk on available-for-sale securities (4) (32 ) 31 (63 ) 33 (30 ) Total $ (3,951 ) $ 3,676 $ 483 $ (833 ) $ (350 ) (1) Amounts are recorded in interest expense in the Consolidated Statement of Income. (2) For the three and six months ended June 30, 2018 , the derivative amount includes losses of $1.0 billion and $576 million in other income and a gain of $25 million and a loss of $39 million in interest expense, respectively. For the same periods in 2017 , the derivative amount includes gains of $1.0 billion and $1.3 billion in other income and losses of $124 million and $281 million in interest expense, respectively. Line item totals are in the Consolidated Statement of Income. (3) For the three and six months ended June 30, 2018 , the derivative amount includes losses of $83 million and $130 million related to certain changes in the fair value of derivatives that were excluded from effectiveness testing and recognized in accumulated OCI. None of the excluded amounts have been reclassified into earnings. (4) Amounts are recorded in interest income in the Consolidated Statement of Income. The table below summarizes the carrying value of hedged assets and liabilities that are designated and qualifying in fair value hedging relationships along with the cumulative amount of fair value hedging adjustments included in the carrying value that have been recorded in the current hedging relationships. These fair value hedging adjustments are open basis adjustments that are not subject to amortization as long as the hedging relationship remains designated. Designated Fair Value Hedged Assets (Liabilities) June 30, 2018 (Dollars in millions) Carrying Value Cumulative Fair Value Adjustments (1) Long-term debt $ (133,177 ) $ 1,894 Available-for-sale securities (2) 954 (48 ) (1) For assets, increase (decrease) to carrying value and for liabilities, (increase) decrease to carrying value. (2) The amortized cost of available-for-sale securities in fair value hedging relationships was $949 million and is included in debt securities carried at fair value on the Consolidated Balance Sheet. At June 30, 2018 , the cumulative fair value adjustments remaining on long-term debt and available-for-sale (AFS) securities from discontinued hedging relationships were an increase of $900 million and a decrease of $39 million , which are being amortized over the remaining contractual life of the de-designated hedged items. Cash Flow and Net Investment Hedges The following table summarizes certain information related to cash flow hedges and net investment hedges for the three and six months ended June 30, 2018 and 2017 . Of the $1.3 billion after-tax net loss ( $1.7 billion pretax) on derivatives in accumulated OCI at June 30, 2018 , $292 million after-tax ( $383 million pretax) is expected to be reclassified into earnings in the next 12 months. These net losses reclassified into earnings are expected to primarily reduce net interest income related to the respective hedged items. For terminated cash flow hedges, the time period over which the majority of the forecasted transactions are hedged is approximately seven years , with a maximum length of time for certain forecasted transactions of 18 years . Gains and Losses on Derivatives Designated as Cash Flow and Net Investment Hedges (Dollars in millions, amounts pretax) Gains (Losses) Gains (Losses) Gains (Losses) Gains (Losses) Three Months Ended June 30, 2018 Six Months Ended June 30, 2018 Cash flow hedges Interest rate risk on variable-rate assets (1) $ (71 ) $ (33 ) $ (499 ) $ (83 ) Price risk on certain restricted stock awards (2) — — 4 27 Total $ (71 ) $ (33 ) $ (495 ) $ (56 ) Net investment hedges Foreign exchange risk (3) $ 923 $ — $ 679 $ (1 ) Three Months Ended June 30, 2017 Six Months Ended June 30, 2017 Cash flow hedges Interest rate risk on variable-rate assets (1) $ 64 $ (108 ) $ 27 $ (220 ) Price risk on certain restricted stock awards (2) 6 29 34 71 Total $ 70 $ (79 ) $ 61 $ (149 ) Net investment hedges Foreign exchange risk (3) $ (464 ) $ 1,928 $ (1,114 ) $ 1,798 (1) Amounts reclassified from accumulated OCI are recorded in interest income in the Consolidated Statement of Income. (2) Amounts reclassified from accumulated OCI are recorded in personnel expense in the Consolidated Statement of Income. (3) Amounts reclassified from accumulated OCI are recorded in other income in the Consolidated Statement of Income. For the three and six months ended June 30, 2018 , amounts excluded from effectiveness testing and recognized in other income were gains of $24 million and $29 million . For the same periods in 2017 , amounts excluded from effectiveness testing and recognized in other income were losses of $33 million and $48 million . Other Risk Management Derivatives Other risk management derivatives are used by the Corporation to reduce certain risk exposures by economically hedging various assets and liabilities. The gains and losses on these derivatives are recognized in other income. The table below presents gains (losses) on these derivatives for the three and six months ended June 30, 2018 and 2017 . These gains (losses) are largely offset by the income or expense that is recorded on the hedged item. Gains and Losses On Other Risk Management Derivatives Three Months Ended June 30 Six Months Ended June 30 (Dollars in millions) 2018 2017 2018 2017 Interest rate risk on mortgage activities (1) $ (26 ) $ 55 $ (161 ) $ 31 Credit risk on loans (2) (2 ) (1 ) (5 ) (3 ) Interest rate and foreign currency risk on ALM activities (3) 702 238 563 (52 ) (1) Primarily related to hedges of interest rate risk on mortgage servicing rights (MSRs) and interest rate lock commitments (IRLCs) to originate mortgage loans that will be held for sale. The net gains on IRLCs, which are not included in the table but are considered derivative instruments, were $14 million and $28 million for the three and six months ended June 30, 2018 compared to $60 million and $116 million for the same periods in 2017 . (2) Primarily related to derivatives that are economic hedges of credit risk on loans. (3) Primarily related to hedges of debt securities carried at fair value and hedges of foreign currency-denominated debt. Transfers of Financial Assets with Risk Retained through Derivatives The Corporation enters into certain transactions involving the transfer of financial assets that are accounted for as sales where substantially all of the economic exposure to the transferred financial assets is retained through derivatives (e.g., interest rate and/or credit), but the Corporation does not retain control over the assets transferred. As of both June 30, 2018 and December 31, 2017, the Corporation had transferred $6.0 billion of non-U.S. government-guaranteed mortgage-backed securities (MBS) to a third-party trust and retained economic exposure to the transferred assets through derivative contracts. In connection with these transfers, the Corporation received gross cash proceeds of $6.0 billion at the transfer dates. At June 30, 2018 and December 31, 2017 , the fair value of the transferred securities was $5.7 billion and $6.1 billion . At June 30, 2018 and December 31, 2017 , derivative assets of $49 million and $46 million and liabilities of $2 million and $3 million were recorded and are included in credit derivatives in the derivative instruments table on page 64 . Sales and Trading Revenue The Corporation enters into trading derivatives to facilitate client transactions and to manage risk exposures arising from trading account assets and liabilities. It is the Corporation’s policy to include these derivative instruments in its trading activities which include derivatives and non-derivative cash instruments. The resulting risk from these derivatives is managed on a portfolio basis as part of the Corporation’s Global Markets business segment. For more information on sales and trading revenue, see Note 2 – Derivatives to the Consolidated Financial Statements of the Corporation’s 2017 Annual Report on Form 10-K . The table below, which includes both derivatives and non-derivative cash instruments, identifies the amounts in the respective income statement line items attributable to the Corporation’s sales and trading revenue in Global Markets , categorized by primary risk, for the three and six months ended June 30, 2018 and 2017 . The difference between total trading account profits in the following table and in the Consolidated Statement of Income represents trading activities in business segments other than Global Markets . This table includes debit valuation adjustment (DVA) and funding valuation adjustment (FVA) gains (losses). Global Markets results in Note 17 – Business Segment Information are presented on a fully taxable-equivalent (FTE) basis. The table below is not presented on an FTE basis. Sales and Trading Revenue Trading Account Profits Net Interest Income Other (1) Total Trading Account Profits Net Interest Income Other (1) Total (Dollars in millions) Three Months Ended June 30, 2018 Six Months Ended June 30, 2018 Interest rate risk $ 348 $ 314 $ (1 ) $ 661 $ 888 $ 639 $ 67 $ 1,594 Foreign exchange risk 392 (8 ) 1 385 796 (13 ) 3 786 Equity risk 1,097 (202 ) 398 1,293 2,249 (327 ) 848 2,770 Credit risk 284 487 136 907 828 959 271 2,058 Other risk 63 4 24 91 126 13 39 178 Total sales and trading revenue $ 2,184 $ 595 $ 558 $ 3,337 $ 4,887 $ 1,271 $ 1,228 $ 7,386 Three Months Ended June 30, 2017 Six Months Ended June 30, 2017 Interest rate risk $ 219 $ 375 $ 75 $ 669 $ 502 $ 817 $ 152 $ 1,471 Foreign exchange risk 347 (1 ) 3 349 715 (4 ) 3 714 Equity risk 775 (155 ) 476 1,096 1,447 (230 ) 962 2,179 Credit risk 371 473 148 992 1,121 984 346 2,451 Other risk 31 5 17 53 135 10 49 194 Total sales and trading revenue $ 1,743 $ 697 $ 719 $ 3,159 $ 3,920 $ 1,577 $ 1,512 $ 7,009 (1) Represents amounts in investment and brokerage services and other income that are recorded in Global Markets and included in the definition of sales and trading revenue. Includes investment and brokerage services revenue of $420 million and $897 million for the three and six months ended June 30, 2018 compared to $514 million and $1.0 billion for the same periods in 2017 . Credit Derivatives The Corporation enters into credit derivatives primarily to facilitate client transactions and to manage credit risk exposures. Credit derivatives derive value based on an underlying third-party referenced obligation or a portfolio of referenced obligations and generally require the Corporation, as the seller of credit protection, to make payments to a buyer upon the occurrence of a predefined credit event. Such credit events generally include bankruptcy of the referenced credit entity and failure to pay under the obligation, as well as acceleration of indebtedness and payment repudiation or moratorium. For credit derivatives based on a portfolio of referenced credits or credit indices, the Corporation may not be required to make payment until a specified amount of loss has occurred and/or may only be required to make payment up to a specified amount. Credit derivative instruments where the Corporation is the seller of credit protection and their expiration at June 30, 2018 and December 31, 2017 are summarized in the table below. Credit Derivative Instruments Less than One Year One to Three Years Three to Five Years Over Five Years Total June 30, 2018 (Dollars in millions) Carrying Value Credit default swaps: Investment grade $ 1 $ 42 $ 427 $ 462 $ 932 Non-investment grade 52 438 981 1,919 3,390 Total 53 480 1,408 2,381 4,322 Total return swaps/options: Investment grade 71 — — — 71 Non-investment grade 238 28 — — 266 Total 309 28 — — 337 Total credit derivatives $ 362 $ 508 $ 1,408 $ 2,381 $ 4,659 Credit-related notes: Investment grade $ — $ — $ 2 $ 435 $ 437 Non-investment grade 3 — 7 1,703 1,713 Total credit-related notes $ 3 $ — $ 9 $ 2,138 $ 2,150 Maximum Payout/Notional Credit default swaps: Investment grade $ 20,037 $ 115,539 $ 123,451 $ 22,070 $ 281,097 Non-investment grade 23,801 41,746 45,687 15,266 126,500 Total 43,838 157,285 169,138 37,336 407,597 Total return swaps/options: Investment grade 55,557 1,672 — 136 57,365 Non-investment grade 17,450 379 39 76 17,944 Total 73,007 2,051 39 212 75,309 Total credit derivatives $ 116,845 $ 159,336 $ 169,177 $ 37,548 $ 482,906 December 31, 2017 Carrying Value Credit default swaps: Investment grade $ 4 $ 3 $ 61 $ 245 $ 313 Non-investment grade 203 453 484 2,133 3,273 Total 207 456 545 2,378 3,586 Total return swaps/options: Investment grade 30 — — — 30 Non-investment grade 150 — — 3 153 Total 180 — — 3 183 Total credit derivatives $ 387 $ 456 $ 545 $ 2,381 $ 3,769 Credit-related notes: Investment grade $ — $ — $ 7 $ 689 $ 696 Non-investment grade 12 4 34 1,548 1,598 Total credit-related notes $ 12 $ 4 $ 41 $ 2,237 $ 2,294 Maximum Payout/Notional Credit default swaps: Investment grade $ 61,388 $ 115,480 $ 107,081 $ 21,579 $ 305,528 Non-investment grade 39,312 49,843 39,098 14,420 142,673 Total 100,700 165,323 146,179 35,999 448,201 Total return swaps/options: Investment grade 37,394 2,581 — 143 40,118 Non-investment grade 13,751 514 143 697 15,105 Total 51,145 3,095 143 840 55,223 Total credit derivatives $ 151,845 $ 168,418 $ 146,322 $ 36,839 $ 503,424 Credit derivatives are classified as investment and non-investment grade based on the credit quality of the underlying referenced obligation. The Corporation considers ratings of BBB- or higher as investment grade. Non-investment grade includes non-rated credit derivative instruments. The Corporation discloses internal categorizations of investment grade and non-investment grade consistent with how risk is managed for these instruments. The notional amount represents the maximum amount payable by the Corporation for most credit derivatives. However, the Corporation does not monitor its exposure to credit derivatives based solely on the notional amount because this measure does not take into consideration the probability of occurrence. As such, the notional amount is not a reliable indicator of the Corporation’s exposure to these contracts. Instead, a risk framework is used to define risk tolerances and establish limits so that certain credit risk-related losses occur within acceptable, predefined limits. Credit-related notes in the table above include investments in securities issued by collateralized debt obligation (CDO), collateralized loan obligation and credit-linked note vehicles. These instruments are primarily classified as trading securities. The carrying value of these instruments equals the Corporation’s maximum exposure to loss. The Corporation is not obligated to make any payments to the entities under the terms of the securities owned. Credit-related Contingent Features and Collateral A majority of the Corporation’s derivative contracts contain credit risk-related contingent features, primarily in the form of ISDA master netting agreements and credit support documentation that enhance the creditworthiness of these instruments compared to other obligations of the respective counterparty with whom the Corporation has transacted. These contingent features may be for the benefit of the Corporation as well as its counterparties with respect to changes in the Corporation’s creditworthiness and the mark-to-market exposure under the derivative transactions. At June 30, 2018 and December 31, 2017 , the Corporation held cash and securities collateral of $88.4 billion and $77.2 billion , and posted cash and securities collateral of $56.8 billion and $59.2 billion in the normal course of business under derivative agreements, excluding cross-product margining agreements where clients are permitted to margin on a net basis for both derivative and secured financing arrangements. In connection with certain OTC derivative contracts and other trading agreements, the Corporation can be required to provide additional collateral or to terminate transactions with certain counterparties in the event of a downgrade of the senior debt ratings of the Corporation or certain subsidiaries. The amount of additional collateral required depends on the contract and is usually a fixed incremental amount and/or the market value of the exposure. For more information on credit-related contingent features and collateral, see Note 2 – Derivatives to the Consolidated Financial Statements of the Corporation’s 2017 Annual Report on Form 10-K . At June 30, 2018 , the amount of collateral, calculated based on the terms of the contracts, that the Corporation and certain subsidiaries could be required to post to counterparties but had not yet posted to counterparties was $2.3 billion , including $1.5 billion for Bank of America, National Association (Bank of America, N.A. or BANA). Some counterparties are currently able to unilaterally terminate certain contracts, or the Corporation or certain subsidiaries may be required to take other action such as find a suitable replacement or obtain a guarantee. At June 30, 2018 and December 31, 2017 , the liability recorded for these derivative contracts was not significant. The table below presents the amount of additional collateral that would have been contractually required by derivative contracts and other trading agreements at June 30, 2018 if the rating agencies had downgraded their long-term senior debt ratings for the Corporation or certain subsidiaries by one incremental notch and by an additional second incremental notch. Additional Collateral Required to be Posted Upon Downgrade at June 30, 2018 (Dollars in millions) One incremental notch Second incremental notch Bank of America Corporation $ 643 $ 289 Bank of America, N.A. and subsidiaries (1) 322 247 (1) Included in Bank of America Corporation collateral requirements in this table. The table below presents the derivative liabilities that would be subject to unilateral termination by counterparties and the amounts of collateral that would have been contractually required at June 30, 2018 if the long-term senior debt ratings for the Corporation or certain subsidiaries had been lower by one incremental notch and by an additional second incremental notch. Derivative Liabilities Subject to Unilateral Termination Upon Downgrade at June 30, 2018 (Dollars in millions) One incremental notch Second incremental notch Derivative liabilities $ 184 $ 614 Collateral posted 115 479 Valuation Adjustments on Derivatives The table below presents credit valuation adjustment (CVA), DVA and FVA gains (losses) on derivatives, which are recorded in trading account profits, on a gross and net of hedge basis for the three and six months ended June 30, 2018 and 2017 . For more information on the valuation adjustments on derivatives, see Note 2 – Derivatives to the Consolidated Financial Statements of the Corporation’s 2017 Annual Report on Form 10-K . Valuation Adjustments on Derivatives (1) Gains (Losses) Three Months Ended June 30 2018 2017 (Dollars in millions) Gross Net Gross Net Derivative assets (CVA) $ 139 $ 127 $ 97 $ 52 Derivative assets/liabilities (FVA) 28 (18 ) 27 41 Derivative liabilities (DVA) (159 ) (159 ) (128 ) (125 ) Six Months Ended June 30 2018 2017 Derivative assets (CVA) $ 115 $ 145 $ 258 $ 78 Derivative assets/liabilities (FVA) (9 ) (19 ) 76 97 Derivative liabilities (DVA) (43 ) (53 ) (278 ) (218 ) (1) At June 30, 2018 and December 31, 2017 , cumulative CVA reduced the derivative assets balance by $562 million and $677 million , cumulative FVA reduced the net derivatives balance by $145 million and $136 million , and cumulative DVA reduced the derivative liabilities balance by $407 million and $450 million , respectively.

Securities

Securities	6 Months Ended
	Jun. 30, 2018
Investments, Debt and Equity Securities [Abstract]
Securities	Securities The table below presents the amortized cost, gross unrealized gains and losses, and fair value of AFS debt securities, other debt securities carried at fair value and held-to-maturity (HTM) debt securities at June 30, 2018 and December 31, 2017 . Debt Securities Amortized Cost Gross Gains Gross Losses Fair Value (Dollars in millions) June 30, 2018 Available-for-sale debt securities Mortgage-backed securities: Agency $ 162,301 $ 125 $ (5,426 ) $ 157,000 Agency-collateralized mortgage obligations 6,194 13 (172 ) 6,035 Commercial 14,156 2 (558 ) 13,600 Non-agency residential (1) 2,283 262 (11 ) 2,534 Total mortgage-backed securities 184,934 402 (6,167 ) 179,169 U.S. Treasury and agency securities 54,758 12 (2,036 ) 52,734 Non-U.S. securities 6,659 7 (1 ) 6,665 Other taxable securities, substantially all asset-backed securities 4,412 81 (7 ) 4,486 Total taxable securities 250,763 502 (8,211 ) 243,054 Tax-exempt securities 19,085 82 (102 ) 19,065 Total available-for-sale debt securities 269,848 584 (8,313 ) 262,119 Other debt securities carried at fair value 12,853 306 (22 ) 13,137 Total debt securities carried at fair value 282,701 890 (8,335 ) 275,256 Held-to-maturity debt securities, substantially all U.S. agency mortgage-backed securities (2) 163,013 131 (4,913 ) 158,231 Total debt securities (3, 4) $ 445,714 $ 1,021 $ (13,248 ) $ 433,487 December 31, 2017 Available-for-sale debt securities Mortgage-backed securities: Agency $ 194,119 $ 506 $ (1,696 ) $ 192,929 Agency-collateralized mortgage obligations 6,846 39 (81 ) 6,804 Commercial 13,864 28 (208 ) 13,684 Non-agency residential (1) 2,410 267 (8 ) 2,669 Total mortgage-backed securities 217,239 840 (1,993 ) 216,086 U.S. Treasury and agency securities 54,523 18 (1,018 ) 53,523 Non-U.S. securities 6,669 9 (1 ) 6,677 Other taxable securities, substantially all asset-backed securities 5,699 73 (2 ) 5,770 Total taxable securities 284,130 940 (3,014 ) 282,056 Tax-exempt securities 20,541 138 (104 ) 20,575 Total available-for-sale debt securities 304,671 1,078 (3,118 ) 302,631 Other debt securities carried at fair value 12,273 252 (39 ) 12,486 Total debt securities carried at fair value 316,944 1,330 (3,157 ) 315,117 Held-to-maturity debt securities, substantially all U.S. agency mortgage-backed securities 125,013 111 (1,825 ) 123,299 Total debt securities (3, 4) $ 441,957 $ 1,441 $ (4,982 ) $ 438,416 Available-for-sale marketable equity securities (5) $ 27 $ — $ (2 ) $ 25 (1) At both June 30, 2018 and December 31, 2017 , the underlying collateral type included approximately 62 percent prime, 13 percent Alt-A and 25 percent subprime. (2) During the three months ended June 30, 2018, the Corporation transferred $25 billion of available-for-sale debt securities to held to maturity. (3) Includes securities pledged as collateral of $42.4 billion and $35.8 billion at June 30, 2018 and December 31, 2017 . (4) The Corporation had debt securities from Fannie Mae (FNMA) and Freddie Mac (FHLMC) that each exceeded 10 percent of shareholders’ equity, with an amortized cost of $165.6 billion and $52.8 billion , and a fair value of $160.6 billion and $51.2 billion at June 30, 2018 , and an amortized cost of $163.6 billion and $50.3 billion , and a fair value of $162.1 billion and $50.0 billion at December 31, 2017 . (5) Classified in other assets on the Consolidated Balance Sheet. At June 30, 2018 , the accumulated net unrealized loss on AFS debt securities included in accumulated OCI was $5.8 billion , net of the related income tax benefit of $1.9 billion . The Corporation had nonperforming AFS debt securities of $92 million and $99 million at June 30, 2018 and December 31, 2017 . Effective January 1, 2018, the Corporation adopted an accounting standard applicable to equity securities. For more information, see Note 1 – Summary of Significant Accounting Principles . At June 30, 2018 , the Corporation held equity securities at an aggregate fair value of $946 million and other equity securities, as valued under the measurement alternative, at cost of $241 million , both of which are included in other assets. The following table presents the components of other debt securities carried at fair value where the changes in fair value are reported in other income. In the three and six months ended June 30, 2018 , the Corporation recorded unrealized mark-to-market net gains of $28 million and $69 million , and realized net gains of $15 million and $9 million , compared to unrealized mark-to-market net gains of $83 million and $ 199 million and realized net losses of $14 million and $118 million for the same periods in 2017 . These amounts exclude hedge results. Other Debt Securities Carried at Fair Value (Dollars in millions) June 30 December 31 Mortgage-backed securities: Agency-collateralized mortgage obligations $ — $ 5 Non-agency residential 2,535 2,764 Total mortgage-backed securities 2,535 2,769 Non-U.S. securities (1) 10,400 9,488 Other taxable securities, substantially all asset-backed securities 202 229 Total $ 13,137 $ 12,486 (1) These securities are primarily used to satisfy certain international regulatory liquidity requirements. The gross realized gains and losses on sales of AFS debt securities for the three and six months ended June 30, 2018 and 2017 are presented in the table below. Gains and Losses on Sales of AFS Debt Securities Three Months Ended June 30 Six Months Ended June 30 (Dollars in millions) 2018 2017 2018 2017 Gross gains $ 1 $ 102 $ 3 $ 156 Gross losses — (1 ) — (3 ) Net gains on sales of AFS debt securities $ 1 $ 101 $ 3 $ 153 Income tax expense attributable to realized net gains on sales of AFS debt securities $ 1 $ 38 $ 1 $ 58 The table below presents the fair value and the associated gross unrealized losses on AFS debt securities and whether these securities have had gross unrealized losses for less than 12 months or for 12 months or longer at June 30, 2018 and December 31, 2017 . Temporarily Impaired and Other-than-temporarily Impaired AFS Debt Securities Less than Twelve Months Twelve Months or Longer Total Fair Value Gross Unrealized Losses Fair Value Gross Unrealized Losses Fair Value Gross Unrealized Losses (Dollars in millions) June 30, 2018 Temporarily impaired AFS debt securities Mortgage-backed securities: Agency $ 93,123 $ (2,718 ) $ 59,404 $ (2,708 ) $ 152,527 $ (5,426 ) Agency-collateralized mortgage obligations 3,706 (93 ) 1,698 (79 ) 5,404 (172 ) Commercial 8,325 (250 ) 4,486 (308 ) 12,811 (558 ) Non-agency residential 154 (6 ) — — 154 (6 ) Total mortgage-backed securities 105,308 (3,067 ) 65,588 (3,095 ) 170,896 (6,162 ) U.S. Treasury and agency securities 27,277 (918 ) 23,856 (1,118 ) 51,133 (2,036 ) Non-U.S. securities — — 86 (1 ) 86 (1 ) Other taxable securities, substantially all asset-backed securities 152 (4 ) 113 (3 ) 265 (7 ) Total taxable securities 132,737 (3,989 ) 89,643 (4,217 ) 222,380 (8,206 ) Tax-exempt securities 303 (2 ) 3,990 (100 ) 4,293 (102 ) Total temporarily impaired AFS debt securities 133,040 (3,991 ) 93,633 (4,317 ) 226,673 (8,308 ) Other-than-temporarily impaired AFS debt securities (1) Non-agency residential mortgage-backed securities 150 (5 ) — — 150 (5 ) Total temporarily impaired and other-than-temporarily impaired AFS debt securities $ 133,190 $ (3,996 ) $ 93,633 $ (4,317 ) $ 226,823 $ (8,313 ) December 31, 2017 Temporarily impaired AFS debt securities Mortgage-backed securities: Agency $ 73,535 $ (352 ) $ 72,612 $ (1,344 ) $ 146,147 $ (1,696 ) Agency-collateralized mortgage obligations 2,743 (29 ) 1,684 (52 ) 4,427 (81 ) Commercial 5,575 (50 ) 4,586 (158 ) 10,161 (208 ) Non-agency residential 335 (7 ) — — 335 (7 ) Total mortgage-backed securities 82,188 (438 ) 78,882 (1,554 ) 161,070 (1,992 ) U.S. Treasury and agency securities 27,537 (251 ) 24,035 (767 ) 51,572 (1,018 ) Non-U.S. securities 772 (1 ) — — 772 (1 ) Other taxable securities, substantially all asset-backed securities — — 92 (2 ) 92 (2 ) Total taxable securities 110,497 (690 ) 103,009 (2,323 ) 213,506 (3,013 ) Tax-exempt securities 1,090 (2 ) 7,100 (102 ) 8,190 (104 ) Total temporarily impaired AFS debt securities 111,587 (692 ) 110,109 (2,425 ) 221,696 (3,117 ) Other-than-temporarily impaired AFS debt securities (1) Non-agency residential mortgage-backed securities 58 (1 ) — — 58 (1 ) Total temporarily impaired and other-than-temporarily impaired AFS debt securities $ 111,645 $ (693 ) $ 110,109 $ (2,425 ) $ 221,754 $ (3,118 ) (1) Includes other-than-temporarily impaired (OTTI) AFS debt securities on which an OTTI loss, primarily related to changes in interest rates, remains in accumulated OCI. The Corporation had $8 million and $11 million of credit-related OTTI losses on AFS debt securities which were recognized in other income for the three and six months ended June 30, 2018 compared to $6 million and $33 million for the same periods in 2017 . The amount of noncredit-related OTTI losses, which is recognized in OCI, was insignificant for all periods presented. The cumulative credit loss component of OTTI losses that has been recognized in income related to AFS debt securities that the Corporation does not intend to sell was $264 million for both the three and six months ended June 30, 2018 compared to $284 million for each of the same periods in 2017 . For more information on OTTI losses and significant assumptions used for the Corporation's underlying collateral, see Note 3 – Securities to the Consolidated Financial Statements of the Corporation’s 2017 Annual Report on Form 10-K . Significant assumptions used in estimating the expected cash flows for measuring credit losses on non-agency residential mortgage-backed securities (RMBS) were as follows at June 30, 2018 . Significant Assumptions Range (1) Weighted 10th Percentile (2) 90th Percentile (2) Prepayment speed 13.0 % 3.2 % 21.4 % Loss severity 19.9 9.0 36.9 Life default rate 17.9 1.5 67.1 (1) Represents the range of inputs/assumptions based upon the underlying collateral. (2) The value of a variable below which the indicated percentile of observations will fall. Annual constant prepayment speed and loss severity rates are projected considering collateral characteristics such as loan-to-value (LTV), creditworthiness of borrowers as measured using Fair Isaac Corporation (FICO) scores, and geographic concentrations. The weighted-average severity by collateral type was 16.8 percent for prime, 17.1 percent for Alt-A and 26.9 percent for subprime at June 30, 2018 . Default rates are projected by considering collateral characteristics including, but not limited to, LTV, FICO and geographic concentration. Weighted-average life default rates by collateral type were 15.6 percent for prime, 17.3 percent for Alt-A and 20.0 percent for subprime at June 30, 2018 . The remaining contractual maturity distribution and yields of the Corporation’s debt securities carried at fair value and HTM debt securities at June 30, 2018 are summarized in the table below. Actual duration and yields may differ as prepayments on the loans underlying the mortgages or other asset-backed securities (ABS) are passed through to the Corporation. Maturities of Debt Securities Carried at Fair Value and Held-to-maturity Debt Securities Due in One Year or Less Due after One Year through Five Years Due after Five Years through Ten Years Due after Ten Years Total Amount Yield (1) Amount Yield (1) Amount Yield (1) Amount Yield (1) Amount Yield (1) (Dollars in millions) June 30, 2018 Amortized cost of debt securities carried at fair value Mortgage-backed securities: Agency $ 2 3.50 % $ 26 3.98 % $ 492 2.61 % $ 161,781 3.26 % $ 162,301 3.26 % Agency-collateralized mortgage obligations — — — — 31 2.55 6,163 3.17 6,194 3.17 Commercial 54 9.55 2,155 2.22 11,052 2.48 895 2.81 14,156 2.49 Non-agency residential — — — — 21 0.01 4,543 9.82 4,564 9.77 Total mortgage-backed securities 56 9.33 2,181 2.24 11,596 2.48 173,382 3.43 187,215 3.36 U.S. Treasury and agency securities 542 0.45 32,638 1.47 21,549 2.24 29 2.70 54,758 1.76 Non-U.S. securities 15,118 0.79 1,787 1.53 2 3.56 140 6.55 17,047 0.91 Other taxable securities, substantially all asset-backed securities 576 3.39 2,886 3.34 874 3.24 260 8.56 4,596 3.62 Total taxable securities 16,292 0.90 39,492 1.65 34,021 2.35 173,811 3.44 263,616 2.87 Tax-exempt securities 894 1.71 8,332 2.27 7,252 2.22 2,607 2.64 19,085 2.28 Total amortized cost of debt securities carried at fair value $ 17,186 0.94 $ 47,824 1.76 $ 41,273 2.32 $ 176,418 3.42 $ 282,701 2.83 Amortized cost of HTM debt securities (2) $ 4 3.36 $ 63 3.56 $ 1,427 2.78 $ 161,519 3.15 $ 163,013 3.15 Debt securities carried at fair value Mortgage-backed securities: Agency $ 2 $ 26 $ 484 $ 156,488 $ 157,000 Agency-collateralized mortgage obligations — — 30 6,005 6,035 Commercial 54 2,108 10,592 846 13,600 Non-agency residential — — 33 5,036 5,069 Total mortgage-backed securities 56 2,134 11,139 168,375 181,704 U.S. Treasury and agency securities 542 31,381 20,783 28 52,734 Non-U.S. securities 15,121 1,798 2 144 17,065 Other taxable securities, substantially all asset-backed securities 571 2,905 916 296 4,688 Total taxable securities 16,290 38,218 32,840 168,843 256,191 Tax-exempt securities 894 8,347 7,230 2,594 19,065 Total debt securities carried at fair value $ 17,184 $ 46,565 $ 40,070 $ 171,437 $ 275,256 Fair value of HTM debt securities (2) $ 4 $ 63 $ 1,363 $ 156,801 $ 158,231 (1) The average yield is computed based on a constant effective interest rate over the contractual life of each security. The average yield considers the contractual coupon and the amortization of premiums and accretion of discounts, excluding the effect of related hedging derivatives. (2) Substantially all U.S. agency MBS.

Outstanding Loans and Leases

Outstanding Loans and Leases	6 Months Ended
	Jun. 30, 2018
Receivables [Abstract]
Outstanding Loans and Leases	Outstanding Loans and Leases The following tables present total outstanding loans and leases and an aging analysis for the Consumer Real Estate, Credit Card and Other Consumer, and Commercial portfolio segments, by class of financing receivables, at June 30, 2018 and December 31, 2017 . 30-59 Days Past Due (1) 60-89 Days Past Due (1) 90 Days or Past Due (2) Total Past or More Total Current or Less Than 30 Days Past Due (3) Purchased (4) Loans Accounted for Under the Fair Value Option Total Outstandings (Dollars in millions) June 30, 2018 Consumer real estate Core portfolio Residential mortgage $ 1,064 $ 259 $ 886 $ 2,209 $ 182,453 $ 184,662 Home equity 205 102 457 764 40,761 41,525 Non-core portfolio Residential mortgage (5) 840 361 2,672 3,873 11,822 $ 7,207 22,902 Home equity 186 96 488 770 8,914 2,378 12,062 Credit card and other consumer U.S. credit card 501 329 865 1,695 93,095 94,790 Direct/Indirect consumer (6) 282 77 37 396 92,225 92,621 Other consumer (7) — — — — 167 167 Total consumer 3,078 1,224 5,405 9,707 429,437 9,585 448,729 Consumer loans accounted for under the fair value option (8) $ 848 848 Total consumer loans and leases 3,078 1,224 5,405 9,707 429,437 9,585 848 449,577 Commercial U.S. commercial 441 213 685 1,339 288,402 289,741 Non-U.S. commercial 43 389 — 432 94,018 94,450 Commercial real estate (9) 59 — 76 135 60,938 61,073 Commercial lease financing 46 59 30 135 21,264 21,399 U.S. small business commercial 61 40 84 185 14,020 14,205 Total commercial 650 701 875 2,226 478,642 480,868 Commercial loans accounted for under the fair value option (8) 5,379 5,379 Total commercial loans and leases 650 701 875 2,226 478,642 5,379 486,247 Total loans and leases (10) $ 3,728 $ 1,925 $ 6,280 $ 11,933 $ 908,079 $ 9,585 $ 6,227 $ 935,824 Percentage of outstandings 0.40 % 0.21 % 0.67 % 1.28 % 97.03 % 1.02 % 0.67 % 100.00 % (1) Consumer real estate loans 30-59 days past due includes fully-insured loans of $665 million and nonperforming loans of $242 million . Consumer real estate loans 60-89 days past due includes fully-insured loans of $307 million and nonperforming loans of $195 million . (2) Consumer real estate includes fully-insured loans of $2.5 billion . (3) Consumer real estate includes $2.1 billion and direct/indirect consumer includes $44 million of nonperforming loans. (4) Purchased credit-impaired (PCI) loan amounts are shown gross of the valuation allowance. (5) Total outstandings includes pay option loans of $1.2 billion . The Corporation no longer originates this product. (6) Total outstandings includes auto and specialty lending loans and leases of $50.2 billion , unsecured consumer lending loans of $410 million , U.S. securities-based lending loans of $38.4 billion , non-U.S. consumer loans of $2.8 billion and other consumer loans of $769 million . (7) Substantially all of other consumer is consumer overdrafts. (8) Consumer loans accounted for under the fair value option includes residential mortgage loans of $489 million and home equity loans of $359 million . Commercial loans accounted for under the fair value option includes U.S. commercial loans of $3.5 billion and non-U.S. commercial loans of $1.9 billion . For more information, see Note 14 – Fair Value Measurements and Note 15 – Fair Value Option . (9) Total outstandings includes U.S. commercial real estate loans of $57.1 billion and non-U.S. commercial real estate loans of $4.0 billion . (10) Total outstandings Includes loans and leases pledged as collateral of $55.0 billion . The Corporation also pledged $150.1 billion of loans with no related outstanding borrowings to secure potential borrowing capacity with the Federal Reserve Bank and Federal Home Loan Bank (FHLB). 30-59 Days (1) 60-89 Days Past Due (1) 90 Days or (2) Total Past Total Current or Less Than 30 Days Past Due (3) Purchased (4) Loans Accounted for Under the Fair Value Option Total Outstandings (Dollars in millions) December 31, 2017 Consumer real estate Core portfolio Residential mortgage $ 1,242 $ 321 $ 1,040 $ 2,603 $ 174,015 $ 176,618 Home equity 215 108 473 796 43,449 44,245 Non-core portfolio Residential mortgage (5) 1,028 468 3,535 5,031 14,161 $ 8,001 27,193 Home equity 224 121 572 917 9,866 2,716 13,499 Credit card and other consumer U.S. credit card 542 405 900 1,847 94,438 96,285 Direct/Indirect consumer (6) 330 104 44 478 95,864 96,342 Other consumer (7) — — — — 166 166 Total consumer 3,581 1,527 6,564 11,672 431,959 10,717 454,348 Consumer loans accounted for under the fair value option (8) $ 928 928 Total consumer loans and leases 3,581 1,527 6,564 11,672 431,959 10,717 928 455,276 Commercial U.S. commercial 547 244 425 1,216 283,620 284,836 Non-U.S. commercial 52 1 3 56 97,736 97,792 Commercial real estate (9) 48 10 29 87 58,211 58,298 Commercial lease financing 110 68 26 204 21,912 22,116 U.S. small business commercial 95 45 88 228 13,421 13,649 Total commercial 852 368 571 1,791 474,900 476,691 Commercial loans accounted for under the fair value option (8) 4,782 4,782 Total commercial loans and leases 852 368 571 1,791 474,900 4,782 481,473 Total loans and leases (10) $ 4,433 $ 1,895 $ 7,135 $ 13,463 $ 906,859 $ 10,717 $ 5,710 $ 936,749 Percentage of outstandings 0.48 % 0.20 % 0.76 % 1.44 % 96.81 % 1.14 % 0.61 % 100.00 % (1) Consumer real estate loans 30-59 days past due includes fully-insured loans of $850 million and nonperforming loans of $253 million . Consumer real estate loans 60-89 days past due includes fully-insured loans of $386 million and nonperforming loans of $195 million . (2) Consumer real estate includes fully-insured loans of $3.2 billion . (3) Consumer real estate includes $2.3 billion and direct/indirect consumer includes $43 million of nonperforming loans. (4) PCI loan amounts are shown gross of the valuation allowance. (5) Total outstandings includes pay option loans of $1.4 billion . The Corporation no longer originates this product. (6) Total outstandings includes auto and specialty lending loans and leases of $52.4 billion , unsecured consumer lending loans of $469 million , U.S. securities-based lending loans of $39.8 billion , non-U.S. consumer loans of $3.0 billion and other consumer loans of $684 million . (7) Substantially all of other consumer is consumer overdrafts. (8) Consumer loans accounted for under the fair value option includes residential mortgage loans of $567 million and home equity loans of $361 million . Commercial loans accounted for under the fair value option includes U.S. commercial loans of $2.6 billion and non-U.S. commercial loans of $2.2 billion . For more information, see Note 14 – Fair Value Measurements and Note 15 – Fair Value Option . (9) Total outstandings includes U.S. commercial real estate loans of $54.8 billion and non-U.S. commercial real estate loans of $3.5 billion . (10) Total outstandings Includes loans and leases pledged as collateral of $40.1 billion . The Corporation also pledged $160.3 billion of loans with no related outstanding borrowings to secure potential borrowing capacity with the Federal Reserve Bank and FHLB. The Corporation categorizes consumer real estate loans as core and non-core based on loan and customer characteristics such as origination date, product type, LTV, FICO score and delinquency status consistent with its current consumer and mortgage servicing strategy. Generally, loans that were originated after January 1, 2010, qualified under government-sponsored enterprise (GSE) underwriting guidelines, or otherwise met the Corporation’s underwriting guidelines in place in 2015 are characterized as core loans. All other loans are generally characterized as non-core loans and represent run-off portfolios. The Corporation has entered into long-term credit protection agreements with FNMA and FHLMC on loans totaling $6.0 billion and $6.3 billion at June 30, 2018 and December 31, 2017 , providing full credit protection on residential mortgage loans that become severely delinquent. All of these loans are individually insured and therefore the Corporation does not record an allowance for credit losses related to these loans. Nonperforming Loans and Leases The Corporation classifies junior-lien home equity loans as nonperforming when the first-lien loan becomes 90 days past due even if the junior-lien loan is performing. At June 30, 2018 and December 31, 2017 , $266 million and $330 million of such junior-lien home equity loans were included in nonperforming loans. The Corporation classifies consumer real estate loans that have been discharged in Chapter 7 bankruptcy and not reaffirmed by the borrower as troubled debt restructurings (TDRs), irrespective of payment history or delinquency status, even if the repayment terms for the loan have not been otherwise modified. The Corporation continues to have a lien on the underlying collateral. At June 30, 2018 , nonperforming loans discharged in Chapter 7 bankruptcy with no change in repayment terms were $263 million of which $139 million were current on their contractual payments, while $102 million were 90 days or more past due. Of the contractually current nonperforming loans, 57 percent were discharged in Chapter 7 bankruptcy over 12 months ago, and 50 percent were discharged 24 months or more ago. During the three and six months ended June 30, 2018 , the Corporation sold nonperforming and other delinquent consumer real estate loans with a carrying value of $168 million and $546 million , including $51 million and $160 million of PCI loans, compared to $323 million and $465 million , including $204 million of PCI loans for both periods, for the same periods in 2017 . The Corporation recorded net recoveries of $7 million and $27 million related to these sales for the three and six months ended June 30, 2018 compared to net recoveries of $3 million and $14 million for the same periods in 2017 . Gains related to these sales of $10 million and $26 million were recorded in other income in the Consolidated Statement of Income for the three and six months ended June 30, 2018 compared to gains of $6 million and $12 million for the same periods in 2017 . During the six months ended June 30, 2018 and 2017 , the Corporation transferred consumer nonperforming loans with a net carrying value of $2 million and $198 million to held for sale. The table below presents the Corporation’s nonperforming loans and leases including nonperforming TDRs, and loans accruing past due 90 days or more at June 30, 2018 and December 31, 2017 . Nonperforming loans held-for-sale (LHFS) are excluded from nonperforming loans and leases as they are recorded at either fair value or the lower of cost or fair value. For more information on the criteria for classification as nonperforming, see Note 1 – Summary of Significant Accounting Principles to the Consolidated Financial Statements of the Corporation’s 2017 Annual Report on Form 10-K . Credit Quality Nonperforming Loans and Leases Accruing Past Due 90 Days or More (Dollars in millions) June 30 December 31 June 30 December 31 Consumer real estate Core portfolio Residential mortgage (1) $ 1,052 $ 1,087 $ 344 $ 417 Home equity 1,077 1,079 — — Non-core portfolio Residential mortgage (1) 1,088 1,389 2,139 2,813 Home equity 1,375 1,565 — — Credit card and other consumer U.S. credit card n/a n/a 865 900 Direct/Indirect consumer 47 46 35 40 Other consumer — — — — Total consumer 4,639 5,166 3,383 4,170 Commercial U.S. commercial 881 814 221 144 Non-U.S. commercial 170 299 — 3 Commercial real estate 117 112 — 4 Commercial lease financing 34 24 12 19 U.S. small business commercial 56 55 73 75 Total commercial 1,258 1,304 306 245 Total loans and leases $ 5,897 $ 6,470 $ 3,689 $ 4,415 (1) Residential mortgage loans in the core and non-core portfolios accruing past due 90 days or more are fully-insured loans. At June 30, 2018 and December 31, 2017 , residential mortgage includes $1.7 billion and $2.2 billion of loans on which interest has been curtailed by the Federal Housing Administration (FHA), and therefore are no longer accruing interest, although principal is still insured, and $742 million and $1.0 billion of loans on which interest is still accruing. n/a = not applicable Credit Quality Indicators The Corporation monitors credit quality within its Consumer Real Estate, Credit Card and Other Consumer, and Commercial portfolio segments based on primary credit quality indicators. For more information on the portfolio segments and their related credit quality indicators, see Significant Accounting Principles – Loans and Leases in Note 1 – Summary of Significant Accounting Principles and Credit Quality Indicators in Note 4 – Outstanding Loans and Leases to the Consolidated Financial Statements of the Corporation’s 2017 Annual Report on Form 10-K . The following tables present certain credit quality indicators for the Corporation’s Consumer Real Estate, Credit Card and Other Consumer, and Commercial portfolio segments, by class of financing receivables, at June 30, 2018 and December 31, 2017 . Consumer Real Estate – Credit Quality Indicators (1) Core Residential Mortgage (2) Non-core Residential (2) Residential Mortgage PCI (3) Core Home Equity (2) Non-core Home Equity (2) Home Equity PCI (Dollars in millions) June 30, 2018 Refreshed LTV (4) Less than or equal to 90 percent $ 163,729 $ 9,975 $ 6,289 $ 40,505 $ 7,395 $ 1,618 Greater than 90 percent but less than or equal to 100 percent 2,676 664 452 476 880 338 Greater than 100 percent 992 777 466 544 1,409 422 Fully-insured loans (5) 17,265 4,279 — — — — Total consumer real estate $ 184,662 $ 15,695 $ 7,207 $ 41,525 $ 9,684 $ 2,378 Refreshed FICO score Less than 620 $ 2,128 $ 1,890 $ 1,673 $ 1,112 $ 1,858 $ 393 Greater than or equal to 620 and less than 680 4,236 1,690 1,431 2,152 2,090 390 Greater than or equal to 680 and less than 740 22,803 2,759 2,129 7,318 2,484 666 Greater than or equal to 740 138,230 5,077 1,974 30,943 3,252 929 Fully-insured loans (5) 17,265 4,279 — — — — Total consumer real estate $ 184,662 $ 15,695 $ 7,207 $ 41,525 $ 9,684 $ 2,378 (1) Excludes $848 million of loans accounted for under the fair value option. (2) Excludes PCI loans. (3) Includes $1.1 billion of pay option loans. The Corporation no longer originates this product. (4) Refreshed LTV percentages for PCI loans are calculated using the carrying value net of the related valuation allowance. (5) Credit quality indicators are not reported for fully-insured loans as principal repayment is insured. Credit Card and Other Consumer – Credit Quality Indicators U.S. Credit Card Direct/Indirect Consumer Other Consumer (Dollars in millions) June 30, 2018 Refreshed FICO score Less than 620 $ 4,504 $ 1,588 $ — Greater than or equal to 620 and less than 680 11,810 1,854 — Greater than or equal to 680 and less than 740 34,852 11,193 — Greater than or equal to 740 43,624 35,949 — Other internal credit metrics (1, 2) — 42,037 167 Total credit card and other consumer $ 94,790 $ 92,621 $ 167 (1) Other internal credit metrics may include delinquency status, geography or other factors. (2) Direct/indirect consumer includes $41.3 billion of securities-based lending which is overcollateralized and therefore has minimal credit risk. Commercial – Credit Quality Indicators (1) U.S. Commercial Non-U.S. Commercial Commercial Real Estate Commercial Financing U.S. Small Commercial (2) (Dollars in millions) June 30, 2018 Risk ratings Pass rated $ 281,622 $ 92,676 $ 60,622 $ 20,978 $ 282 Reservable criticized 8,119 1,774 451 421 36 Refreshed FICO score (3) Less than 620 235 Greater than or equal to 620 and less than 680 639 Greater than or equal to 680 and less than 740 1,982 Greater than or equal to 740 4,134 Other internal credit metrics (3, 4) 6,897 Total commercial $ 289,741 $ 94,450 $ 61,073 $ 21,399 $ 14,205 (1) Excludes $5.4 billion of loans accounted for under the fair value option. (2) U.S. small business commercial includes $725 million of criticized business card and small business loans which are evaluated using refreshed FICO scores or internal credit metrics, including delinquency status, rather than risk ratings. At June 30, 2018 , 99 percent of the balances where internal credit metrics are used was current or less than 30 days past due. (3) Refreshed FICO score and other internal credit metrics are applicable only to the U.S. small business commercial portfolio. (4) Other internal credit metrics may include delinquency status, application scores, geography or other factors. Consumer Real Estate – Credit Quality Indicators (1) Core Residential Mortgage (2) Non-core Residential (2) Residential Mortgage PCI (3) Core Home Equity (2) Non-core Home (2) Home Equity PCI (Dollars in millions) December 31, 2017 Refreshed LTV (4) Less than or equal to 90 percent $ 153,669 $ 12,135 $ 6,872 $ 43,048 $ 7,944 $ 1,781 Greater than 90 percent but less than or equal to 100 percent 3,082 850 559 549 1,053 412 Greater than 100 percent 1,322 1,011 570 648 1,786 523 Fully-insured loans (5) 18,545 5,196 — — — — Total consumer real estate $ 176,618 $ 19,192 $ 8,001 $ 44,245 $ 10,783 $ 2,716 Refreshed FICO score Less than 620 $ 2,234 $ 2,390 $ 1,941 $ 1,169 $ 2,098 $ 452 Greater than or equal to 620 and less than 680 4,531 2,086 1,657 2,371 2,393 466 Greater than or equal to 680 and less than 740 22,934 3,519 2,396 8,115 2,723 786 Greater than or equal to 740 128,374 6,001 2,007 32,590 3,569 1,012 Fully-insured loans (5) 18,545 5,196 — — — — Total consumer real estate $ 176,618 $ 19,192 $ 8,001 $ 44,245 $ 10,783 $ 2,716 (1) Excludes $928 million of loans accounted for under the fair value option. (2) Excludes PCI loans. (3) Includes $1.2 billion of pay option loans. The Corporation no longer originates this product. (4) Refreshed LTV percentages for PCI loans are calculated using the carrying value net of the related valuation allowance. (5) Credit quality indicators are not reported for fully-insured loans as principal repayment is insured. Credit Card and Other Consumer – Credit Quality Indicators U.S. Credit Card Direct/Indirect Consumer Other Consumer (Dollars in millions) December 31, 2017 Refreshed FICO score Less than 620 $ 4,730 $ 1,680 $ — Greater than or equal to 620 and less than 680 12,422 2,143 — Greater than or equal to 680 and less than 740 35,656 12,304 — Greater than or equal to 740 43,477 36,759 — Other internal credit metrics (1, 2) — 43,456 166 Total credit card and other consumer $ 96,285 $ 96,342 $ 166 (1) Other internal credit metrics may include delinquency status, geography or other factors. (2) Direct/indirect consumer includes $42.8 billion of securities-based lending which is overcollateralized and therefore has minimal credit risk. Commercial – Credit Quality Indicators (1) U.S. Commercial Non-U.S. Commercial Commercial Real Estate Commercial Financing U.S. Small Commercial (2) (Dollars in millions) December 31, 2017 Risk ratings Pass rated $ 275,904 $ 96,199 $ 57,732 $ 21,535 $ 322 Reservable criticized 8,932 1,593 566 581 50 Refreshed FICO score (3) Less than 620 223 Greater than or equal to 620 and less than 680 625 Greater than or equal to 680 and less than 740 1,875 Greater than or equal to 740 3,713 Other internal credit metrics (3, 4) 6,841 Total commercial $ 284,836 $ 97,792 $ 58,298 $ 22,116 $ 13,649 (1) Excludes $4.8 billion of loans accounted for under the fair value option. (2) U.S. small business commercial includes $709 million of criticized business card and small business loans which are evaluated using refreshed FICO scores or internal credit metrics, including delinquency status, rather than risk ratings. At December 31, 2017 , 98 percent of the balances where internal credit metrics are used was current or less than 30 days past due. (3) Refreshed FICO score and other internal credit metrics are applicable only to the U.S. small business commercial portfolio. (4) Other internal credit metrics may include delinquency status, application scores, geography or other factors. Impaired Loans and Troubled Debt Restructurings A loan is considered impaired when, based on current information, it is probable that the Corporation will be unable to collect all amounts due from the borrower in accordance with the contractual terms of the loan. For additional information on impaired loans, see Note 1 – Summary of Significant Accounting Principles and Note 4 – Outstanding Loans and Leases to the Consolidated Financial Statements of the Corporation’s 2017 Annual Report on Form 10-K . Consumer Real Estate Impaired consumer real estate loans within the Consumer Real Estate portfolio segment consist entirely of TDRs. Excluding PCI loans, most modifications of consumer real estate loans meet the definition of TDRs when a binding offer is extended to a borrower. For more information on impaired consumer real estate loans, see Note 4 – Outstanding Loans and Leases to the Consolidated Financial Statements of the Corporation’s 2017 Annual Report on Form 10-K . Consumer real estate loans that have been discharged in Chapter 7 bankruptcy with no change in repayment terms and not reaffirmed by the borrower of $1.0 billion were included in TDRs at June 30, 2018 , of which $263 million were classified as nonperforming and $382 million were loans fully-insured by the FHA. For more information on loans discharged in Chapter 7 bankruptcy, see Nonperforming Loans and Leases in this Note. At June 30, 2018 and December 31, 2017 , remaining commitments to lend additional funds to debtors whose terms have been modified in a consumer real estate TDR were immaterial. Consumer real estate foreclosed properties totaled $263 million and $236 million at June 30, 2018 and December 31, 2017 . The carrying value of consumer real estate loans, including fully-insured and PCI loans, for which formal foreclosure proceedings were in process at June 30, 2018 was $3.0 billion . During the three and six months ended June 30, 2018 , the Corporation reclassified $151 million and $319 million of consumer real estate loans to foreclosed properties or, for properties acquired upon foreclosure of certain government-guaranteed loans (principally FHA-insured loans), to other assets. This compared to reclassifications of $226 million and $426 million for the same periods in 2017 . The reclassifications represent non-cash investing activities and, accordingly, are not reflected in the Consolidated Statement of Cash Flows. The table below provides the unpaid principal balance, carrying value and related allowance at June 30, 2018 and December 31, 2017 , and the average carrying value and interest income recognized for the three and six months ended June 30, 2018 and 2017 for impaired loans in the Corporation’s Consumer Real Estate portfolio segment. Certain impaired consumer real estate loans do not have a related allowance as the current valuation of these impaired loans exceeded the carrying value, which is net of previously recorded charge-offs. Impaired Loans – Consumer Real Estate Unpaid Balance Carrying Value Related Allowance Unpaid Balance Carrying Value Related Allowance (Dollars in millions) June 30, 2018 December 31, 2017 With no recorded allowance Residential mortgage $ 6,544 $ 5,223 $ — $ 8,856 $ 6,870 $ — Home equity 3,545 1,932 — 3,622 1,956 — With an allowance recorded Residential mortgage $ 2,482 $ 2,421 $ 149 $ 2,908 $ 2,828 $ 174 Home equity 962 894 178 972 900 174 Total Residential mortgage (1) $ 9,026 $ 7,644 $ 149 $ 11,764 $ 9,698 $ 174 Home equity 4,507 2,826 178 4,594 2,856 174 Average Interest (2) Average Interest (2) Average Interest (2) Average Interest (2) Three Months Ended June 30 Six Months Ended June 30 2018 2017 2018 2017 With no recorded allowance Residential mortgage $ 5,362 $ 50 $ 7,886 $ 81 $ 5,978 $ 115 $ 8,192 $ 160 Home equity 1,944 25 1,999 28 1,953 52 2,000 55 With an allowance recorded Residential mortgage $ 2,482 $ 24 $ 3,647 $ 33 $ 2,597 $ 49 $ 3,723 $ 68 Home equity 891 6 868 7 889 12 842 12 Total Residential mortgage (1) $ 7,844 $ 74 $ 11,533 $ 114 $ 8,575 $ 164 $ 11,915 $ 228 Home equity 2,835 31 2,867 35 2,842 64 2,842 67 (1) During the three months ended June 30, 2018 , previously impaired residential mortgage loans with a carrying value of $1.2 billion were sold, resulting in a gain of $572 million recorded in other income. (2) Interest income recognized includes interest accrued and collected on the outstanding balances of accruing impaired loans as well as interest cash collections on nonaccruing impaired loans for which the principal is considered collectible. The table below presents the June 30, 2018 and 2017 unpaid principal balance, carrying value, and average pre- and post-modification interest rates on consumer real estate loans that were modified in TDRs during the three and six months ended June 30, 2018 and 2017 . The following Consumer Real Estate portfolio segment tables include loans that were initially classified as TDRs during the period and also loans that had previously been classified as TDRs and were modified again during the period. Consumer Real Estate – TDRs Entered into During the Three and Six Months Ended June 30, 2018 and 2017 Unpaid Principal Balance Carrying Value Pre-Modification Interest Rate Post-Modification Interest Rate (1) Unpaid Principal Balance Carrying Pre-Modification Interest Rate Post-Modification Interest Rate (1) (Dollars in millions) Three Months Ended June 30, 2018 Six Months Ended June 30, 2018 Residential mortgage $ 276 $ 237 4.24 % 3.94 % $ 628 $ 542 4.17 % 3.93 % Home equity 194 152 4.43 4.42 392 297 4.38 4.06 Total (2) $ 470 $ 389 4.32 4.14 $ 1,020 $ 839 4.25 3.98 Three Months Ended June 30, 2017 Six Months Ended June 30, 2017 Residential mortgage $ 346 $ 313 4.50 % 4.37 % $ 646 $ 581 4.51 % 4.34 % Home equity 250 201 4.11 3.94 469 365 4.20 3.75 Total (2) $ 596 $ 514 4.33 4.19 $ 1,115 $ 946 4.38 4.09 (1) The post-modification interest rate reflects the interest rate applicable only to permanently completed modifications, which exclude loans that are in a trial modification period. (2) Net charge-offs, which include amounts recorded on loans modified during the period that are no longer held by the Corporation at June 30, 2018 and 2017 due to sales and other dispositions, were $15 million and $24 million for the three and six months ended June 30, 2018 compared to $12 million and $20 million for the same periods in 2017 . The table below presents the June 30, 2018 and 2017 carrying value for consumer real estate loans that were modified in a TDR during the three and six months ended June 30, 2018 and 2017 , by type of modification. Consumer Real Estate – Modification Programs TDRs Entered into During the Three Months Ended June 30 Six Months Ended June 30 (Dollars in millions) 2018 2017 2018 2017 Modifications under government programs Contractual interest rate reduction $ 9 $ 11 $ 17 $ 38 Principal and/or interest forbearance — 1 — 3 Other modifications (1) 8 3 18 8 Total modifications under government programs 17 15 35 49 Modifications under proprietary programs Contractual interest rate reduction 13 20 67 72 Capitalization of past due amounts 19 9 43 21 Principal and/or interest forbearance 5 3 16 9 Other modifications (1) 55 16 205 44 Total modifications under proprietary programs 92 48 331 146 Trial modifications 242 387 379 622 Loans discharged in Chapter 7 bankruptcy (2) 38 64 94 129 Total modifications $ 389 $ 514 $ 839 $ 946 (1) Includes other modifications such as term or payment extensions and repayment plans. During the three and six months ended June 30, 2018 , this included $38 million and $196 million of modifications related to the 2017 hurricanes that met the definition of a TDR. These modifications had been written down to their net realizable value less costs to sell or were fully insured as of June 30, 2018 . (2) Includes loans discharged in Chapter 7 bankruptcy with no change in repayment terms that are classified as TDRs. The table below presents the carrying value of consumer real estate loans that entered into payment default during the three and six months ended June 30, 2018 and 2017 that were modified in a TDR during the 12 months preceding payment default. A payment default for consumer real estate TDRs is recognized when a borrower has missed three monthly payments (not necessarily consecutively) since modification. Consumer Real Estate – TDRs Entering Payment Default that were Modified During the Preceding 12 Months Three Months Ended June 30 Six Months Ended June 30 (Dollars in millions) 2018 2017 2018 2017 Modifications under government programs $ 11 $ 20 $ 24 $ 46 Modifications under proprietary programs 56 33 87 67 Loans discharged in Chapter 7 bankruptcy (1) 16 15 39 77 Trial modifications (2) 22 46 67 258 Total modifications $ 105 $ 114 $ 217 $ 448 (1) Includes loans discharged in Chapter 7 bankruptcy with no change in repayment terms that are classified as TDRs. (2) Includes trial modification offers to which the customer did not respond. Credit Card and Other Consumer Impaired loans within the Credit Card and Other Consumer portfolio segment consist entirely of loans that have been modified in TDRs. The Corporation seeks to assist customers that are experiencing financial difficulty by modifying loans while ensuring compliance with federal, local and international laws and guidelines. Credit card and other consumer loan modifications generally involve reducing the interest rate on the account, placing the customer on a fixed payment plan not exceeding 60 months and canceling the customer’s available line of credit, all of which are considered TDRs. The Corporation makes loan modifications directly with borrowers for debt held only by the Corporation (internal programs). Additionally, the Corporation makes loan modifications for borrowers working with third-party renegotiation agencies that provide solutions to customers’ entire unsecured debt structures (external programs). The Corporation classifies other secured consumer loans that have been discharged in Chapter 7 bankruptcy as TDRs which are written down to collateral value and placed on nonaccrual status no later than the time of discharge. For more information on the regulatory guidance on loans discharged in Chapter 7 bankruptcy, see Nonperforming Loans and Leases in this Note. The table below provides the unpaid principal balance, carrying value and related allowance at June 30, 2018 and December 31, 2017 , and the average carrying value and interest income recognized for the three and six months ended June 30, 2018 and 2017 on TDRs within the Credit Card and Other Consumer portfolio segment. Impaired Loans – Credit Card and Other Consumer Unpaid Balance Carrying Value (1) Related Allowance Unpaid Balance Carrying Value (1) Related Allowance (Dollars in millions) June 30, 2018 December 31, 2017 With no recorded allowance Direct/Indirect consumer $ 63 $ 30 $ — $ 58 $ 28 $ — With an allowance recorded U.S. credit card $ 478 $ 486 $ 143 $ 454 $ 461 $ 125 Direct/Indirect consumer 1 1 — 1 1 — Total U.S. credit card $ 478 $ 486 $ 143 $ 454 $ 461 $ 125 Direct/Indirect consumer 64 31 — 59 29 — Average Interest (2) Average Interest (2) Average Interest (2) Average Interest (2) Three Months Ended June 30 Six Months Ended June 30 2018 2017 2018 2017 With no recorded allowance Direct/Indirect consumer $ 29 $ 1 $ 18 $ — $ 29 $ 1 $ 18 $ — With an allowance recorded U.S. credit card $ 480 $ 6 $ 463 $ 6 $ 473 $ 12 $ 470 $ 12 Non-U.S. credit card (3) — — 78 — — — 88 1 Direct/Indirect consumer 1 — 2 — 1 — 3 — Total U.S. credit card $ 480 $ 6 $ 463 $ 6 $ 473 $ 12 $ 470 $ 12 Non-U.S. credit card (3) — — 78 — — — 88 1 Direct/Indirect consumer 30 1 20 — 30 1 21 — (1) Includes accrued interest and fees. (2) Interest income recognized includes interest accrued and collected on the outstanding balances of accruing impaired loans as well as interest cash collections on nonaccruing impaired loans for which the principal is considered collectible. (3) In the second quarter of 2017, the Corporation sold its non-U.S. consumer credit card business. The table below provides information on the Corporation’s primary modification programs for the Credit Card and Other Consumer TDR portfolio at June 30, 2018 and December 31, 2017 . Credit Card and Other Consumer – TDRs by Program Type U.S. Credit Card Direct/Indirect Consumer Total TDRs by Program Type (Dollars in millions) June 30 December 31 June 30 December 31 June 30 December 31 Internal programs $ 223 $ 203 $ 1 $ 1 $ 224 $ 204 External programs 262 257 — — 262 257 Other 1 1 30 28 31 29 Total $ 486 $ 461 $ 31 $ 29 $ 517 $ 490 Percent of balances current or less than 30 days past due 86.42 % 86.92 % 89.63 % 88.16 % 86.60 % 87.00 % The table below

Allowance for Credit Losses

Allowance for Credit Losses	6 Months Ended
	Jun. 30, 2018
Receivables [Abstract]
Allowance for Credit Losses	Allowance for Credit Losses The table below summarizes the changes in the allowance for credit losses by portfolio segment for the three and six months ended June 30, 2018 and 2017 . Consumer (1) Credit Card and Other Consumer Commercial Total (Dollars in millions) Three Months Ended June 30, 2018 Allowance for loan and lease losses, April 1 $ 1,530 $ 3,720 $ 5,010 $ 10,260 Loans and leases charged off (137 ) (1,033 ) (208 ) (1,378 ) Recoveries of loans and leases previously charged off 130 210 42 382 Net charge-offs (7 ) (823 ) (166 ) (996 ) Write-offs of PCI loans (2) (36 ) — — (36 ) Provision for loan and lease losses (3) (121 ) 878 65 822 Other (4) — (1 ) 1 — Allowance for loan and lease losses, June 30 1,366 3,774 4,910 10,050 Reserve for unfunded lending commitments, April 1 — — 782 782 Provision for unfunded lending commitments — — 5 5 Reserve for unfunded lending commitments, June 30 — — 787 787 Allowance for credit losses, June 30 $ 1,366 $ 3,774 $ 5,697 $ 10,837 Three Months Ended June 30, 2017 Allowance for loan and lease losses, April 1 $ 2,565 $ 3,329 $ 5,218 $ 11,112 Loans and leases charged off (198 ) (954 ) (198 ) (1,350 ) Recoveries of loans and leases previously charged off 167 234 41 442 Net charge-offs (31 ) (720 ) (157 ) (908 ) Write-offs of PCI loans (2) (55 ) — — (55 ) Provision for loan and lease losses (3) (170 ) 776 120 726 Other (4) — 1 (1 ) — Allowance for loan and lease losses, June 30 2,309 3,386 5,180 10,875 Reserve for unfunded lending commitments, April 1 and June 30 — — 757 757 Allowance for credit losses, June 30 $ 2,309 $ 3,386 $ 5,937 $ 11,632 Six Months Ended June 30, 2018 Allowance for loan and lease losses, January 1 $ 1,720 $ 3,663 $ 5,010 $ 10,393 Loans and leases charged off (311 ) (2,039 ) (324 ) (2,674 ) Recoveries of loans and leases previously charged off 277 413 77 767 Net charge-offs (34 ) (1,626 ) (247 ) (1,907 ) Write-offs of PCI loans (2) (71 ) — — (71 ) Provision for loan and lease losses (3) (249 ) 1,754 146 1,651 Other (4) — (17 ) 1 (16 ) Allowance for loan and lease losses, June 30 1,366 3,774 4,910 10,050 Reserve for unfunded lending commitments, January 1 — — 777 777 Provision for unfunded lending commitments — — 10 10 Reserve for unfunded lending commitments, June 30 — — 787 787 Allowance for credit losses, June 30 $ 1,366 $ 3,774 $ 5,697 $ 10,837 Six Months Ended June 30, 2017 Allowance for loan and lease losses, January 1 $ 2,750 $ 3,229 $ 5,258 $ 11,237 Loans and leases charged off (402 ) (1,900 ) (358 ) (2,660 ) Recoveries of loans and leases previously charged off 290 434 94 818 Net charge-offs (112 ) (1,466 ) (264 ) (1,842 ) Write-offs of PCI loans (2) (88 ) — — (88 ) Provision for loan and lease losses (3) (241 ) 1,619 188 1,566 Other (4) — 4 (2 ) 2 Allowance for loan and lease losses, June 30 2,309 3,386 5,180 10,875 Reserve for unfunded lending commitments, January 1 — — 762 762 Provision for unfunded lending commitments — — (5 ) (5 ) Reserve for unfunded lending commitments, June 30 — — 757 757 Allowance for credit losses, June 30 $ 2,309 $ 3,386 $ 5,937 $ 11,632 (1) Includes valuation allowance associated with the PCI loan portfolio. (2) Includes write-offs associated with the sale of PCI loans of $1 million and $17 million during the three and six months ended June 30, 2018 compared to $35 million for both of the same periods in 2017 . (3) Includes provision benefit associated with the PCI loan portfolio of $14 million and $25 million during the three and six months ended June 30, 2018 compared to provision benefit of $24 million and provision expense of $44 million for the same periods in 2017 . (4) Primarily represents the net impact of portfolio sales, consolidations and deconsolidations, foreign currency translation adjustments, transfers to held for sale and certain other reclassifications. The table below presents the allowance and the carrying value of outstanding loans and leases by portfolio segment at June 30, 2018 and December 31, 2017 . Allowance and Carrying Value by Portfolio Segment Consumer Credit Card and Other Consumer Commercial Total (Dollars in millions) June 30, 2018 Impaired loans and troubled debt restructurings (1) Allowance for loan and lease losses $ 327 $ 143 $ 212 $ 682 Carrying value (2) 10,470 517 2,489 13,476 Allowance as a percentage of carrying value 3.12 % 27.66 % 8.52 % 5.06 % Loans collectively evaluated for impairment Allowance for loan and lease losses $ 848 $ 3,631 $ 4,698 $ 9,177 Carrying value (2, 3) 241,096 187,061 478,379 906,536 Allowance as a percentage of carrying value (3) 0.35 % 1.94 % 0.98 % 1.01 % Purchased credit-impaired loans Valuation allowance $ 191 n/a n/a $ 191 Carrying value gross of valuation allowance 9,585 n/a n/a 9,585 Valuation allowance as a percentage of carrying value 1.99 % n/a n/a 1.99 % Total Allowance for loan and lease losses $ 1,366 $ 3,774 $ 4,910 $ 10,050 Carrying value (2, 3) 261,151 187,578 480,868 929,597 Allowance as a percentage of carrying value (3) 0.52 % 2.01 % 1.02 % 1.08 % December 31, 2017 Impaired loans and troubled debt restructurings (1) Allowance for loan and lease losses $ 348 $ 125 $ 190 $ 663 Carrying value (2) 12,554 490 2,407 15,451 Allowance as a percentage of carrying value 2.77 % 25.51 % 7.89 % 4.29 % Loans collectively evaluated for impairment Allowance for loan and lease losses $ 1,083 $ 3,538 $ 4,820 $ 9,441 Carrying value (2, 3) 238,284 192,303 474,284 904,871 Allowance as a percentage of carrying value (3) 0.45 % 1.84 % 1.02 % 1.04 % Purchased credit-impaired loans Valuation allowance $ 289 n/a n/a $ 289 Carrying value gross of valuation allowance 10,717 n/a n/a 10,717 Valuation allowance as a percentage of carrying value 2.70 % n/a n/a 2.70 % Total Allowance for loan and lease losses $ 1,720 $ 3,663 $ 5,010 $ 10,393 Carrying value (2, 3) 261,555 192,793 476,691 931,039 Allowance as a percentage of carrying value (3) 0.66 % 1.90 % 1.05 % 1.12 % (1) Impaired loans include nonperforming commercial loans and all TDRs, including both commercial and consumer TDRs. Impaired loans exclude nonperforming consumer loans unless they are TDRs, and all consumer and commercial loans accounted for under the fair value option. (2) Amounts are presented gross of the allowance for loan and lease losses. (3) Outstanding loan and lease balances and ratios do not include loans accounted for under the fair value option of $6.2 billion and $5.7 billion at June 30, 2018 and December 31, 2017 . n/a = not applicable

Securitizations and Other Varia

Securitizations and Other Variable Interest Entities	6 Months Ended
	Jun. 30, 2018
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Securitizations and Other Variable Interest Entities	Securitizations and Other Variable Interest Entities The Corporation utilizes VIEs in the ordinary course of business to support its own and its customers’ financing and investing needs. The tables in this Note present the assets, liabilities and maximum loss exposure of consolidated and unconsolidated VIEs at June 30, 2018 and December 31, 2017 where the Corporation has continuing involvement with transferred assets or if the Corporation otherwise has a variable interest in the VIE. For additional information on the Corporation’s use of VIEs and related maximum loss exposure, see Note 1 – Summary of Significant Accounting Principles and Note 6 – Securitizations and Other Variable Interest Entities to the Consolidated Financial Statements of the Corporation’s 2017 Annual Report on Form 10-K . The Corporation invests in ABS issued by third-party VIEs with which it has no other form of involvement and enters into certain commercial lending arrangements that may also incorporate the use of VIEs, for example to hold collateral. These securities and loans are included in Note 4 – Securities or Note 5 – Outstanding Loans and Leases . In addition, the Corporation has used VIEs such as trust preferred securities trusts in connection with its funding activities. On June 6, 2018, the Corporation redeemed trust preferred securities with a total carrying value of $3.1 billion resulting in the extinguishment of the related junior subordinated notes issued by the Corporation. In connection therewith, the Corporation recorded a charge to other income of $729 million primarily due to the difference between the carrying and redemption values of the trust preferred securities, the majority of which relates to the discount on the junior subordinated notes assumed in prior acquisitions. For more information on trust preferred securities, see Note 11 – Long-term Debt to the Consolidated Financial Statements of the Corporation’s 2017 Annual Report on Form 10-K . These VIEs, which are generally not consolidated by the Corporation, as applicable, are not included in the tables herein. Except as described below, the Corporation did not provide financial support to consolidated or unconsolidated VIEs during the six months ended June 30, 2018 or the year ended December 31, 2017 that it was not previously contractually required to provide, nor does it intend to do so. The Corporation had liquidity commitments, including written put options and collateral value guarantees, with certain unconsolidated VIEs of $271 million and $442 million at June 30, 2018 and December 31, 2017 . First-lien Mortgage Securitizations First-lien Mortgages As part of its mortgage banking activities, the Corporation securitizes a portion of the first-lien residential mortgage loans it originates or purchases from third parties. Except as described below and in Note 10 – Commitments and Contingencies , the Corporation does not provide guarantees or recourse to the securitization trusts other than standard representations and warranties. The table below summarizes select information related to first-lien mortgage securitizations for the three and six months ended June 30, 2018 and 2017 . First-lien Mortgage Securitizations Residential Mortgage - Agency Commercial Mortgage Three Months Ended June 30 Six Months Ended June 30 Three Months Ended June 30 Six Months Ended June 30 (Dollars in millions) 2018 2017 2018 2017 2018 2017 2018 2017 Cash proceeds from new securitizations (1) $ 1,379 $ 3,302 $ 3,065 $ 7,958 $ 1,672 $ 1,097 $ 2,184 $ 1,706 Gains on securitizations (2) 23 61 41 100 21 35 39 53 Repurchases from securitization trusts (3) 357 602 858 1,474 — — — — (1) The Corporation transfers residential mortgage loans to securitizations sponsored by the GSEs or Government National Mortgage Association (GNMA) in the normal course of business and receives RMBS in exchange which may then be sold into the market to third-party investors for cash proceeds. (2) A majority of the first-lien residential mortgage loans securitized are initially classified as LHFS and accounted for under the fair value option. Gains recognized on these LHFS prior to securitization, which totaled $21 million and $45 million , net of hedges, during the three and six months ended June 30, 2018 , compared to $42 million and $132 million for the same periods in 2017 , are not included in the table above. (3) The Corporation may have the option to repurchase delinquent loans out of securitization trusts, which reduces the amount of servicing advances it is required to make. The Corporation may also repurchase loans from securitization trusts to perform modifications. Repurchased loans include FHA-insured mortgages collateralizing GNMA securities. In addition to cash proceeds as reported in the table above, the Corporation received securities with an initial fair value of $164 million and $302 million in connection with first-lien mortgage securitizations for the three and six months ended June 30, 2018 , compared to $288 million and $563 million for the same periods in 2017. The receipt of these securities represents non-cash operating and investing activities and, accordingly, is not reflected in the Consolidated Statement of Cash Flows. Substantially all of these securities were initially classified as Level 2 assets within the fair value hierarchy. During the three and six months ended June 30, 2018 and 2017 , there were no changes to the initial classification. The Corporation recognizes consumer MSRs from the sale or securitization of consumer real estate loans. The unpaid principal balance of loans serviced for investors, including residential mortgage and home equity loans, totaled $249.5 billion and $304.9 billion at June 30, 2018 and 2017 . Servicing fee and ancillary fee income on serviced loans was $181 million and $378 million during the three and six months ended June 30, 2018 , compared to $233 million and $478 million for the same periods in 2017. Servicing advances on serviced loans, including loans serviced for others and loans held for investment, were $3.8 billion and $4.5 billion at June 30, 2018 and December 31, 2017 . For more information on MSRs, see Note 14 – Fair Value Measurements . During the three and six months ended June 30, 2018 and 2017 , there were no deconsolidations of agency residential mortgage securitizations. The table below summarizes select information related to first-lien mortgage securitization trusts in which the Corporation held a variable interest at June 30, 2018 and December 31, 2017 . First-lien Mortgage VIEs Residential Mortgage Non-agency Agency Prime Subprime Alt-A Commercial Mortgage (Dollars in millions) June 30 December 31 June 30 December 31 June 30 December 31 June 30 December 31 June 30 December 31 Unconsolidated VIEs Maximum loss exposure (1) $ 17,336 $ 19,110 $ 655 $ 689 $ 2,483 $ 2,643 $ 399 $ 403 $ 615 $ 585 On-balance sheet assets Senior securities: Trading account assets $ 636 $ 716 $ 50 $ 6 $ 36 $ 10 $ 62 $ 50 $ 58 $ 108 Debt securities carried at fair value 13,075 15,036 420 477 2,021 2,221 335 351 — — Held-to-maturity securities 3,625 3,348 — — — — — — 362 274 All other assets (2) — 10 5 5 60 38 2 2 80 88 Total retained positions $ 17,336 $ 19,110 $ 475 $ 488 $ 2,117 $ 2,269 $ 399 $ 403 $ 500 $ 470 Principal balance outstanding (3) $ 208,265 $ 232,761 $ 10,083 $ 10,549 $ 9,436 $ 10,254 $ 25,640 $ 28,129 $ 26,487 $ 26,504 Consolidated VIEs Maximum loss exposure (1) $ 13,342 $ 14,502 $ 653 $ 571 $ — $ — $ — $ — $ — $ — On-balance sheet assets Trading account assets $ 269 $ 232 $ 837 $ 571 $ — $ — $ — $ — $ — $ — Loans and leases, net 12,867 14,030 — — — — — — — — All other assets 207 240 — — — — — — — — Total assets $ 13,343 $ 14,502 $ 837 $ 571 $ — $ — $ — $ — $ — $ — Total liabilities $ 3 $ 3 $ 184 $ — $ — $ — $ — $ — $ — $ — (1) Maximum loss exposure includes obligations under loss-sharing reinsurance and other arrangements for non-agency residential mortgage and commercial mortgage securitizations, but excludes the reserve for representations and warranties obligations and corporate guarantees and also excludes servicing advances and other servicing rights and obligations. For more information, see Note 10 – Commitments and Contingencies and Note 14 – Fair Value Measurements . (2) Not included in the table above are all other assets of $61 million and $148 million , representing the unpaid principal balance of mortgage loans eligible for repurchase from unconsolidated residential mortgage securitization VIEs, principally guaranteed by GNMA, and all other liabilities of $61 million and $148 million , representing the principal amount that would be payable to the securitization VIEs if the Corporation was to exercise the repurchase option, at June 30, 2018 and December 31, 2017 . (3) Principal balance outstanding includes loans where the Corporation was the transferor to securitization VIEs with which it has continuing involvement, which may include servicing the loans. Other Asset-backed Securitizations The table below summarizes select information related to home equity loan, credit card and other asset-backed VIEs in which the Corporation held a variable interest at June 30, 2018 and December 31, 2017 . Home Equity Loan, Credit Card and Other Asset-backed VIEs Home Equity Loan (1) Credit Card (2, 3) Resecuritization Trusts Municipal Bond Trusts (Dollars in millions) June 30 December 31 June 30 December 31 June 30 December 31 June 30 December 31 Unconsolidated VIEs Maximum loss exposure $ 1,238 $ 1,522 $ — $ — $ 8,025 $ 8,204 $ 1,726 $ 1,631 On-balance sheet assets Senior securities (4) : Trading account assets $ — $ — $ — $ — $ 1,297 $ 869 $ — $ 33 Debt securities carried at fair value 31 36 — — 1,471 1,661 — — Held-to-maturity securities — — — — 5,257 5,644 — — All other assets (4) — — — — — 30 — — Total retained positions $ 31 $ 36 $ — $ — $ 8,025 $ 8,204 $ — $ 33 Total assets of VIEs (5) $ 2,085 $ 2,432 $ — $ — $ 19,975 $ 19,281 $ 2,378 $ 2,287 Consolidated VIEs Maximum loss exposure $ 97 $ 112 $ 20,518 $ 24,337 $ 264 $ 628 $ 1,480 $ 1,453 On-balance sheet assets Trading account assets $ — $ — $ — $ — $ 622 $ 1,557 $ 1,492 $ 1,452 Loans and leases 154 177 30,433 32,554 — — — — Allowance for loan and lease losses (7 ) (9 ) (944 ) (988 ) — — — — All other assets 5 6 128 1,385 — — 1 1 Total assets $ 152 $ 174 $ 29,617 $ 32,951 $ 622 $ 1,557 $ 1,493 $ 1,453 On-balance sheet liabilities Short-term borrowings $ — $ — $ — $ — $ — $ — $ 396 $ 312 Long-term debt 65 76 9,071 8,598 358 929 12 — All other liabilities — — 28 16 — — — — Total liabilities $ 65 $ 76 $ 9,099 $ 8,614 $ 358 $ 929 $ 408 $ 312 (1) For unconsolidated home equity loan VIEs, the maximum loss exposure includes outstanding trust certificates issued by trusts in rapid amortization, net of recorded reserves. For both consolidated and unconsolidated home equity loan VIEs, the maximum loss exposure excludes the reserve for representations and warranties obligations and corporate guarantees. For more information, see Note 10 – Commitments and Contingencies . (2) At June 30, 2018 and December 31, 2017 , loans and leases in the consolidated credit card trust included $13.0 billion and $15.6 billion of seller’s interest. (3) At June 30, 2018 and December 31, 2017 , all other assets in the consolidated credit card trust included restricted cash, certain short-term investments, and unbilled accrued interest and fees. (4) All other assets includes subordinate securities. The retained senior and subordinate securities were valued using quoted market prices or observable market inputs (Level 2 of the fair value hierarchy). (5) Total assets of VIEs includes loans the Corporation transferred with which it has continuing involvement, which may include servicing the loan. Home Equity Loans The Corporation retains interests in home equity securitization trusts to which it transferred home equity loans. These retained interests primarily include senior securities. In addition, the Corporation may be obligated to provide subordinate funding to the trusts during a rapid amortization event. This obligation is included in the maximum loss exposure in the table above. The charges that will ultimately be recorded as a result of the rapid amortization events depend on the undrawn portion of the home equity lines of credit (HELOCs), performance of the loans, the amount of subsequent draws and the timing of related cash flows. There were no deconsolidations of HELOC trusts during the six months ended June 30, 2018 and 2017 . Credit Card Securitizations The Corporation securitizes originated and purchased credit card loans. The Corporation’s continuing involvement with the securitization trust includes servicing the receivables, retaining an undivided interest (seller’s interest) in the receivables, and holding certain retained interests including subordinate interests in accrued interest and fees on the securitized receivables and cash reserve accounts. During the six months ended June 30, 2018 and 2017 , new senior debt securities issued to third-party investors from the credit card securitization trust were $ 2.8 billion and $2.0 billion . At June 30, 2018 and December 31, 2017 , the Corporation held subordinate securities issued by the credit card securitization trust with a notional principal amount of $7.5 billion and $7.4 billion . These securities serve as a form of credit enhancement to the senior debt securities and have a stated interest rate of zero percent . There were $448 million and $323 million of these subordinate securities issued during the six months ended June 30, 2018 and 2017 . Resecuritization Trusts The Corporation transfers securities, typically MBS, into resecuritization VIEs at the request of customers seeking securities with specific characteristics. Generally, there are no significant ongoing activities performed in a resecuritization trust, and no single investor has the unilateral ability to liquidate the trust. The Corporation resecuritized $6.8 billion and $13.6 billion of securities during the three and six months ended June 30, 2018 compared to $7.3 billion and $15.1 billion for the same periods in 2017. Securities transferred into resecuritization VIEs during the three and six months ended June 30, 2018 and 2017 were measured at fair value with changes in fair value recorded in trading account profits prior to the resecuritization and no gain or loss on sale was recorded. Resecuritization proceeds included securities with an initial fair value of $910 million and $2.2 billion during the three and six months ended June 30, 2018 compared to $1.1 billion and $1.8 billion for the same periods in 2017. Substantially all of the other securities received as resecuritization proceeds were classified as trading securities and were categorized as Level 2 within the fair value hierarchy. Municipal Bond Trusts The Corporation administers municipal bond trusts that hold highly-rated, long-term, fixed-rate municipal bonds. The trusts obtain financing by issuing floating-rate trust certificates that reprice on a weekly or other short-term basis to third-party investors. The Corporation’s liquidity commitments to unconsolidated municipal bond trusts, including those for which the Corporation was transferor, totaled $1.7 billion and $1.6 billion at June 30, 2018 and December 31, 2017 . The weighted-average remaining life of bonds held in the trusts at June 30, 2018 was 6.1 years . There were no material write-downs or downgrades of assets or issuers during the six months ended June 30, 2018 and 2017 . Other Variable Interest Entities The table below summarizes select information related to other VIEs in which the Corporation held a variable interest at June 30, 2018 and December 31, 2017 . Other VIEs Consolidated Unconsolidated Total Consolidated Unconsolidated Total (Dollars in millions) June 30, 2018 December 31, 2017 Maximum loss exposure $ 4,369 $ 21,209 $ 25,578 $ 4,660 $ 19,785 $ 24,445 On-balance sheet assets Trading account assets $ 2,472 $ 656 $ 3,128 $ 2,709 $ 346 $ 3,055 Debt securities carried at fair value — 61 61 — 160 160 Loans and leases 2,024 4,667 6,691 2,152 3,596 5,748 Allowance for loan and lease losses (3 ) (29 ) (32 ) (3 ) (32 ) (35 ) Loans held-for-sale 3 388 391 27 940 967 All other assets 55 15,018 15,073 62 14,276 14,338 Total $ 4,551 $ 20,761 $ 25,312 $ 4,947 $ 19,286 $ 24,233 On-balance sheet liabilities Long-term debt $ 174 $ — $ 174 $ 270 $ — $ 270 All other liabilities 9 3,982 3,991 18 3,417 3,435 Total $ 183 $ 3,982 $ 4,165 $ 288 $ 3,417 $ 3,705 Total assets of VIEs $ 4,551 $ 86,070 $ 90,621 $ 4,947 $ 69,746 $ 74,693 Customer VIEs Customer VIEs include credit-linked, equity-linked and commodity-linked note VIEs, repackaging VIEs, and asset acquisition VIEs, which are typically created on behalf of customers who wish to obtain market or credit exposure to a specific company, index, commodity or financial instrument. The Corporation’s maximum loss exposure to consolidated and unconsolidated customer VIEs totaled $2.2 billion and $2.3 billion at June 30, 2018 and December 31, 2017 , including the notional amount of derivatives to which the Corporation is a counterparty, net of losses previously recorded, and the Corporation’s investment, if any, in securities issued by the VIEs. Collateralized Debt Obligation VIEs The Corporation receives fees for structuring CDO VIEs, which hold diversified pools of fixed-income securities, typically corporate debt or ABS, which the CDO VIEs fund by issuing multiple tranches of debt and equity securities. CDOs are generally managed by third-party portfolio managers. The Corporation typically transfers assets to these CDOs, holds securities issued by the CDOs and may be a derivative counterparty to the CDOs. The Corporation’s maximum loss exposure to consolidated and unconsolidated CDOs totaled $444 million and $358 million at June 30, 2018 and December 31, 2017 . Investment VIEs The Corporation sponsors, invests in or provides financing, which may be in connection with the sale of assets, to a variety of investment VIEs that hold loans, real estate, debt securities or other financial instruments and are designed to provide the desired investment profile to investors or the Corporation. At June 30, 2018 and December 31, 2017 , the Corporation’s consolidated investment VIEs had total assets of $243 million and $249 million . The Corporation also held investments in unconsolidated VIEs with total assets of $33.8 billion and $20.3 billion at June 30, 2018 and December 31, 2017 . The Corporation’s maximum loss exposure associated with both consolidated and unconsolidated investment VIEs totaled $6.0 billion and $5.7 billion at June 30, 2018 and December 31, 2017 comprised primarily of on-balance sheet assets less non-recourse liabilities. Leveraged Lease Trusts The Corporation’s net investment in consolidated leveraged lease trusts totaled $1.9 billion and $2.0 billion at June 30, 2018 and December 31, 2017 . The trusts hold long-lived equipment such as rail cars, power generation and distribution equipment, and commercial aircraft. The Corporation structures the trusts and holds a significant residual interest. The net investment represents the Corporation’s maximum loss exposure to the trusts in the unlikely event that the leveraged lease investments become worthless. Debt issued by the leveraged lease trusts is non-recourse to the Corporation. Tax Credit VIEs The Corporation holds investments in unconsolidated limited partnerships and similar entities that construct, own and operate affordable housing, wind and solar projects. An unrelated third party is typically the general partner or managing member and has control over the significant activities of the VIE. The Corporation earns a return primarily through the receipt of tax credits allocated to the projects. The maximum loss exposure included in the Other VIEs table was $14.6 billion and $13.8 billion at June 30, 2018 and December 31, 2017 . The Corporation’s risk of loss is generally mitigated by policies requiring that the project qualify for the expected tax credits prior to making its investment. The Corporation’s investments in affordable housing partnerships, which are reported in other assets on the Consolidated Balance Sheet, totaled $8.4 billion and $8.0 billion , including unfunded commitments to provide capital contributions of $3.6 billion and $3.1 billion at June 30, 2018 and December 31, 2017 . The unfunded commitments are expected to be paid over the next five years. The Corporation recognized tax credits and other tax benefits from investments in affordable housing partnerships of $237 million and $485 million , and reported pretax losses in other noninterest income of $217 million and $425 million for the three and six months ended June 30, 2018 . For the same period in 2017 , the Corporation recognized tax credits and other tax benefits of $281 million and $532 million , and pretax losses of $207 million and $403 million . Tax credits are recognized as part of the Corporation’s annual effective tax rate used to determine tax expense in a given quarter. Accordingly, the portion of a year’s expected tax benefits recognized in any given quarter may differ from 25 percent . The Corporation may from time to time be asked to invest additional amounts to support a troubled affordable housing project. Such additional investments have not been and are not expected to be significant.

Goodwill and Intangible Assets

Goodwill and Intangible Assets	6 Months Ended
	Jun. 30, 2018
Goodwill and Intangible Assets Disclosure [Abstract]
Goodwill and Intangible Assets	Goodwill and Intangible Assets Goodwill The table below presents goodwill balances by reporting unit and All Other at June 30, 2018 and December 31, 2017 . The reporting units utilized for goodwill impairment testing are the operating segments or one level below. Goodwill (Dollars in millions) June 30 December 31 Deposits $ 18,414 $ 18,414 Consumer Lending 11,709 11,709 Consumer Banking 30,123 30,123 U.S. Trust 2,917 2,917 Merrill Lynch Global Wealth Management 6,760 6,760 Global Wealth & Investment Management 9,677 9,677 Global Commercial Banking 16,146 16,146 Global Corporate and Investment Banking 6,231 6,231 Business Banking 1,546 1,546 Global Banking 23,923 23,923 Global Markets 5,182 5,182 All Other 46 46 Total goodwill $ 68,951 $ 68,951 For the goodwill impairment test as of June 30, 2018, the Corporation used qualitative assessments. For additional information, see Note 1 – Summary of Significant Accounting Principles . The Corporation completed its annual goodwill impairment test as of June 30, 2018 for all applicable reporting units. Based on the results of the annual goodwill impairment test, the Corporation determined there was no impairment. Intangible Assets The table below presents the gross and net carrying values and accumulated amortization for intangible assets at June 30, 2018 and December 31, 2017 . Intangible Assets (1, 2) Gross Accumulated Net Gross Accumulated Net (Dollars in millions) June 30, 2018 December 31, 2017 Purchased credit card and affinity relationships $ 5,919 $ 5,682 $ 237 $ 5,919 $ 5,604 $ 315 Core deposit and other intangibles (3) 3,835 2,181 1,654 3,835 2,140 1,695 Customer relationships 3,886 3,735 151 3,886 3,584 302 Total intangible assets $ 13,640 $ 11,598 $ 2,042 $ 13,640 $ 11,328 $ 2,312 (1) Excludes fully amortized intangible assets. (2) At June 30, 2018 and December 31, 2017 , none of the intangible assets were impaired. (3) Includes $1.6 billion at both June 30, 2018 and December 31, 2017 of intangible assets associated with trade names that have an indefinite life and, accordingly, are not amortized. Amortization of intangibles expense was $135 million and $269 million for the three and six months ended June 30, 2018 compared to $160 million and $322 million for the same periods in 2017 . The Corporation estimates aggregate amortization expense will be $268 million for the remainder of 2018, $105 million for 2019, $53 million for 2020 and none for the years thereafter.

Federal Funds Sold or Purchased

Federal Funds Sold or Purchased, Securities Financing Agreements, Short-term Borrowings and Restricted Cash	6 Months Ended
	Jun. 30, 2018
Federal Funds Sold, Securities Borrowed or Purchased Under Agreements to Resell and Short-term Borrowings [Abstract]
Federal Funds Sold or Purchased, Securities Financing Agreements, Short-term Borrowings and Restricted Cash	Federal Funds Sold or Purchased, Securities Financing Agreements, Short-term Borrowings and Restricted Cash The table below presents federal funds sold or purchased, securities financing agreements (which include securities borrowed or purchased under agreements to resell and securities loaned or sold under agreements to repurchase) and short-term borrowings. The Corporation elects to account for certain securities financing agreements and short-term borrowings under the fair value option. For more information on the election of the fair value option, see Note 15 – Fair Value Option . Amount Rate Amount Rate Amount Rate Amount Rate Three Months Ended June 30 Six Months Ended June 30 (Dollars in millions) 2018 2017 2018 2017 Federal funds sold and securities borrowed or purchased under agreements to resell Average during period $ 251,880 1.13 % $ 226,700 0.77 % $ 250,110 1.07 % $ 221,579 0.72 % Maximum month-end balance during period 264,923 n/a 237,064 n/a 264,923 n/a 237,064 n/a Federal funds purchased and securities loaned or sold under agreements to repurchase Average during period $ 194,298 1.85 % $ 208,760 1.21 % $ 194,953 1.63 % $ 200,265 1.08 % Maximum month-end balance during period 199,419 n/a 218,017 n/a 199,419 n/a 218,017 n/a Short-term borrowings Average during period 40,542 5.61 42,881 2.65 43,422 4.75 41,468 2.39 Maximum month-end balance during period 44,382 n/a 46,202 n/a 52,480 n/a 46,202 n/a n/a = not applicable Offsetting of Securities Financing Agreements The Corporation enters into securities financing agreements to accommodate customers (also referred to as “matched-book transactions”), obtain securities to cover short positions, and to finance inventory positions. Substantially all of the Corporation’s securities financing activities are transacted under legally enforceable master repurchase agreements or legally enforceable master securities lending agreements that give the Corporation, in the event of default by the counterparty, the right to liquidate securities held and to offset receivables and payables with the same counterparty. The Corporation offsets securities financing transactions with the same counterparty on the Consolidated Balance Sheet where it has such a legally enforceable master netting agreement and the transactions have the same maturity date. The Securities Financing Agreements table presents securities financing agreements included on the Consolidated Balance Sheet in federal funds sold and securities borrowed or purchased under agreements to resell, and in federal funds purchased and securities loaned or sold under agreements to repurchase at June 30, 2018 and December 31, 2017 . Balances are presented on a gross basis, prior to the application of counterparty netting. Gross assets and liabilities are adjusted on an aggregate basis to take into consideration the effects of legally enforceable master netting agreements. For more information on the offsetting of derivatives, see Note 3 – Derivatives . Securities Financing Agreements Gross Assets/Liabilities (1) Amounts Offset Net Balance Sheet Amount Financial Instruments (2) Net Assets/Liabilities (Dollars in millions) June 30, 2018 Securities borrowed or purchased under agreements to resell (3) $ 353,551 $ (127,065 ) $ 226,486 $ (186,805 ) $ 39,681 Securities loaned or sold under agreements to repurchase $ 304,968 $ (127,065 ) $ 177,903 $ (147,798 ) $ 30,105 Other (4) 21,063 — 21,063 (21,063 ) — Total $ 326,031 $ (127,065 ) $ 198,966 $ (168,861 ) $ 30,105 December 31, 2017 Securities borrowed or purchased under agreements to resell (3) $ 348,472 $ (135,725 ) $ 212,747 $ (165,720 ) $ 47,027 Securities loaned or sold under agreements to repurchase $ 312,582 $ (135,725 ) $ 176,857 $ (146,205 ) $ 30,652 Other (4) 22,711 — 22,711 (22,711 ) — Total $ 335,293 $ (135,725 ) $ 199,568 $ (168,916 ) $ 30,652 (1) Includes activity where uncertainty exists as to the enforceability of certain master netting agreements under bankruptcy laws in some countries or industries. (2) Includes securities collateral received or pledged under repurchase or securities lending agreements where there is a legally enforceable master netting agreement. These amounts are not offset on the Consolidated Balance Sheet, but are shown as a reduction to derive a net asset or liability. Securities collateral received or pledged where the legal enforceability of the master netting agreements is uncertain is excluded from the table. (3) Excludes repurchase activity of $11.5 billion and $10.2 billion reported in loans and leases on the Consolidated Balance Sheet at June 30, 2018 and December 31, 2017 . (4) Balance is reported in accrued expenses and other liabilities on the Consolidated Balance Sheet and relates to transactions where the Corporation acts as the lender in a securities lending agreement and receives securities that can be pledged as collateral or sold. In these transactions, the Corporation recognizes an asset at fair value, representing the securities received, and a liability, representing the obligation to return those securities. Repurchase Agreements and Securities Loaned Transactions Accounted for as Secured Borrowings The following tables present securities sold under agreements to repurchase and securities loaned by remaining contractual term to maturity and class of collateral pledged. Included in “Other” are transactions where the Corporation acts as the lender in a securities lending agreement and receives securities that can be pledged as collateral or sold. Certain agreements contain a right to substitute collateral and/or terminate the agreement prior to maturity at the option of the Corporation or the counterparty. Such agreements are included in the table below based on the remaining contractual term to maturity. Remaining Contractual Maturity June 30, 2018 (Dollars in millions) Overnight and Continuous 30 Days or Less After 30 Days Through 90 Days Greater than 90 Days (1) Total Securities sold under agreements to repurchase $ 125,778 $ 81,805 $ 32,591 $ 44,612 $ 284,786 Securities loaned 12,671 236 2,353 4,922 20,182 Other 21,063 — — — 21,063 Total $ 159,512 $ 82,041 $ 34,944 $ 49,534 $ 326,031 December 31, 2017 Securities sold under agreements to repurchase $ 125,956 $ 79,913 $ 46,091 $ 38,935 $ 290,895 Securities loaned 9,853 5,658 2,043 4,133 21,687 Other 22,711 — — — 22,711 Total $ 158,520 $ 85,571 $ 48,134 $ 43,068 $ 335,293 (1) No agreements have maturities greater than three years . Class of Collateral Pledged June 30, 2018 (Dollars in millions) Securities Sold Under Agreements to Repurchase Securities Loaned Other Total U.S. government and agency securities $ 153,756 $ — $ — $ 153,756 Corporate securities, trading loans and other 13,093 2,246 348 15,687 Equity securities 19,408 14,288 20,663 54,359 Non-U.S. sovereign debt 94,054 3,648 52 97,754 Mortgage trading loans and ABS 4,475 — — 4,475 Total $ 284,786 $ 20,182 $ 21,063 $ 326,031 December 31, 2017 U.S. government and agency securities $ 158,299 $ — $ 409 $ 158,708 Corporate securities, trading loans and other 12,787 2,669 624 16,080 Equity securities 23,975 13,523 21,628 59,126 Non-U.S. sovereign debt 90,857 5,495 50 96,402 Mortgage trading loans and ABS 4,977 — — 4,977 Total $ 290,895 $ 21,687 $ 22,711 $ 335,293 The Corporation is required to post collateral with a market value equal to or in excess of the principal amount borrowed under repurchase agreements. For securities loaned transactions, the Corporation receives collateral in the form of cash, letters of credit or other securities. To determine whether the market value of the underlying collateral remains sufficient, collateral is generally valued daily, and the Corporation may be required to deposit additional collateral or may receive or return collateral pledged when appropriate. Repurchase agreements and securities loaned transactions are generally either overnight, continuous (i.e., no stated term) or short-term. The Corporation manages liquidity risks related to these agreements by sourcing funding from a diverse group of counterparties, providing a range of securities collateral and pursuing longer durations, when appropriate. Restricted Cash At both June 30, 2018 and December 31, 2017 , the Corporation held restricted cash included within cash and cash equivalents on the Consolidated Balance Sheet of $18.8 billion , predominantly related to cash segregated in compliance with securities regulations and cash held on deposit with the Federal Reserve and non-U.S. central banks to meet reserve requirements.

Commitments and Contingencies

Commitments and Contingencies	6 Months Ended
	Jun. 30, 2018
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingencies	Commitments and Contingencies In the normal course of business, the Corporation enters into a number of off-balance sheet commitments. These commitments expose the Corporation to varying degrees of credit and market risk and are subject to the same credit and market risk limitation reviews as those instruments recorded on the Consolidated Balance Sheet. For more information on commitments and contingencies, see Note 12 – Commitments and Contingencies to the Consolidated Financial Statements of the Corporation’s 2017 Annual Report on Form 10-K . Credit Extension Commitments The Corporation enters into commitments to extend credit such as loan commitments, SBLCs and commercial letters of credit to meet the financing needs of its customers. The following table includes the notional amount of unfunded legally binding lending commitments net of amounts distributed (i.e., syndicated or participated) to other financial institutions. The distributed amounts were $10.7 billion and $11.0 billion at June 30, 2018 and December 31, 2017 . At June 30, 2018 , the carrying value of these commitments, excluding commitments accounted for under the fair value option, was $803 million , including deferred revenue of $16 million and a reserve for unfunded lending commitments of $787 million . At December 31, 2017 , the comparable amounts were $793 million , $16 million and $777 million , respectively. The carrying value of these commitments is classified in accrued expenses and other liabilities on the Consolidated Balance Sheet. Legally binding commitments to extend credit generally have specified rates and maturities. Certain of these commitments have adverse change clauses that help to protect the Corporation against deterioration in the borrower’s ability to pay. The following table also includes the notional amount of commitments of $3.4 billion and $4.8 billion at June 30, 2018 and December 31, 2017 that are accounted for under the fair value option. However, the following table excludes cumulative net fair value of $114 million and $120 million at June 30, 2018 and December 31, 2017 on these commitments, which is classified in accrued expenses and other liabilities. For more information regarding the Corporation’s loan commitments accounted for under the fair value option, see Note 15 – Fair Value Option . Credit Extension Commitments Expire in One Expire After One Expire After Three Years Through Five Years Expire After Five Years Total (Dollars in millions) June 30, 2018 Notional amount of credit extension commitments Loan commitments $ 85,580 $ 147,418 $ 151,105 $ 20,103 $ 404,206 Home equity lines of credit 3,862 3,048 2,717 33,805 43,432 Standby letters of credit and financial guarantees (1) 20,794 10,190 2,537 627 34,148 Letters of credit 1,378 164 168 50 1,760 Legally binding commitments 111,614 160,820 156,527 54,585 483,546 Credit card lines (2) 370,646 — — — 370,646 Total credit extension commitments $ 482,260 $ 160,820 $ 156,527 $ 54,585 $ 854,192 December 31, 2017 Notional amount of credit extension commitments Loan commitments $ 85,804 $ 140,942 $ 147,043 $ 21,342 $ 395,131 Home equity lines of credit 6,172 4,457 2,288 31,250 44,167 Standby letters of credit and financial guarantees (1) 19,976 11,261 3,420 1,144 35,801 Letters of credit 1,291 117 129 87 1,624 Legally binding commitments 113,243 156,777 152,880 53,823 476,723 Credit card lines (2) 362,030 — — — 362,030 Total credit extension commitments $ 475,273 $ 156,777 $ 152,880 $ 53,823 $ 838,753 (1) The notional amounts of SBLCs and financial guarantees classified as investment grade and non-investment grade based on the credit quality of the underlying reference name within the instrument were $26.3 billion and $7.4 billion at June 30, 2018 , and $27.3 billion and $8.1 billion at December 31, 2017 . Amounts in the table include consumer SBLCs of $401 million and $421 million at June 30, 2018 and December 31, 2017 . (2) Includes business card unused lines of credit. Other Commitments At June 30, 2018 and December 31, 2017 , the Corporation had commitments to purchase loans (e.g., residential mortgage and commercial real estate) of $455 million and $344 million , and commitments to purchase commercial loans of $473 million and $994 million , which upon settlement will be included in loans or LHFS. At both June 30, 2018 and December 31, 2017 , the Corporation had commitments to purchase commodities, primarily liquefied natural gas, of $1.5 billion , which upon settlement will be included in trading account assets. At June 30, 2018 and December 31, 2017 , the Corporation had commitments to enter into resale and forward-dated resale and securities borrowing agreements of $76.4 billion and $56.8 billion , and commitments to enter into forward-dated repurchase and securities lending agreements of $45.8 billion and $34.3 billion . These commitments expire primarily within the next 18 months . At both June 30, 2018 and December 31, 2017 , the Corporation had a commitment to originate or purchase up to $3.0 billion of auto loans and leases from a strategic partner on a rolling 12-month basis. This commitment extends through November 2022 and can be terminated with 12 months prior notice. In addition, at December 31, 2017 , the Corporation had a maximum commitment to purchase $345 million of retail automobile loans from certain auto loan originators, which was terminated in the first quarter of 2018. The Corporation is a party to operating leases for certain of its premises and equipment. Commitments under these leases are approximately $1.1 billion , $2.2 billion , $2.1 billion , $1.8 billion and $1.5 billion for the remainder of 2018 and the years through 2022 , respectively, and $6.2 billion in the aggregate for all years thereafter. Other Guarantees Bank-owned Life Insurance Book Value Protection The Corporation sells products that offer book value protection to insurance carriers who offer group life insurance policies to corporations, primarily banks. At both June 30, 2018 and December 31, 2017 , the notional amount of these guarantees totaled $10.4 billion , and the Corporation’s maximum exposure related to these guarantees totaled $1.6 billion at both period ends, with estimated maturity dates between 2033 and 2039. Merchant Services In accordance with credit and debit card association rules, the Corporation sponsors merchant processing servicers that process credit and debit card transactions on behalf of various merchants. If the merchant processor fails to meet its obligation to reimburse the cardholder for disputed transactions, then the Corporation, as the sponsor, could be held liable for the disputed amount. For the three and six months ended June 30, 2018 , the sponsored entities processed and settled $226.1 billion and $426.8 billion of transactions and recorded losses of $9 million and $17 million . For the same periods in 2017 , the sponsored entities processed and settled $204.6 billion and $391.4 billion of transactions and recorded losses of $8 million and $15 million . A significant portion of this activity was processed by a joint venture in which the Corporation holds a 49 percent ownership. The carrying value of the Corporation’s investment in the merchant services joint venture was $2.8 billion and $2.9 billion at June 30, 2018 and December 31, 2017 , and is recorded in other assets on the Consolidated Balance Sheet and in All Other . At June 30, 2018 and December 31, 2017 , the maximum potential exposure for sponsored transactions totaled $346.8 billion and $346.4 billion . However, the Corporation believes that the maximum potential exposure is not representative of the actual potential loss exposure and does not expect to make material payments in connection with these guarantees. Representations and Warranties Obligations and Corporate Guarantees For information on representations and warranties obligations and corporate guarantees and the related reserve and estimated range of possible loss, see Note 7 – Representations and Warranties Obligations and Corporate Guarantees to the Consolidated Financial Statements of the Corporation’s 2017 Annual Report on Form 10-K . The reserve for representations and warranties and corporate guarantees was $2.1 billion and $1.9 billion at June 30, 2018 and December 31, 2017 and is included in accrued expenses and other liabilities on the Consolidated Balance Sheet and the related provision is included in other income in the Consolidated Statement of Income. The representations and warranties reserve represents the Corporation’s best estimate of probable incurred losses. It is reasonably possible that future representations and warranties losses may occur in excess of the amounts recorded for these exposures. Other Guarantees The Corporation has entered into additional guarantee agreements and commitments, including sold risk participation swaps, liquidity facilities, lease-end obligation agreements, partial credit guarantees on certain leases, real estate joint venture guarantees, divested business commitments and sold put options that require gross settlement. The maximum potential future payment under these agreements was approximately $6.2 billion and $5.9 billion at June 30, 2018 and December 31, 2017 . The estimated maturity dates of these obligations extend up to 2040 . The Corporation has made no material payments under these guarantees. In the normal course of business, the Corporation periodically guarantees the obligations of its affiliates in a variety of transactions including ISDA-related transactions and non-ISDA related transactions such as commodities trading, repurchase agreements, prime brokerage agreements and other transactions. Payment Protection Insurance Claims Matter On June 1, 2017, the Corporation sold its non-U.S. consumer credit card business. Included in the calculation of the gain on sale, the Corporation recorded an obligation to indemnify the purchaser for substantially all payment protection insurance exposure above reserves assumed by the purchaser. Litigation and Regulatory Matters The following supplements the disclosure in Note 12 – Commitments and Contingencies to the Consolidated Financial Statements of the Corporation’s 2017 Annual Report on Form 10-K and in Note 10 – Commitments and Contingencies to the Consolidated Financial Statements of the Corporation’s Quarterly Report on Form 10-Q for the quarter ended March 31, 2018 (the prior commitments and contingencies disclosure). In the ordinary course of business, the Corporation and its subsidiaries are routinely defendants in or parties to many pending and threatened legal, regulatory and governmental actions and proceedings. In view of the inherent difficulty of predicting the outcome of such matters, particularly where the claimants seek very large or indeterminate damages or where the matters present novel legal theories or involve a large number of parties, the Corporation generally cannot predict what the eventual outcome of pending or threatened matters will be, what the timing of the ultimate resolution of these matters will be, or what the eventual loss, fines or penalties related to each matter may be. In accordance with applicable accounting guidance, the Corporation establishes an accrued liability when those matters present loss contingencies that are both probable and estimable. In such cases, there may be an exposure to loss in excess of any amounts accrued. Excluding expenses of internal and external legal service providers, litigation-related expense of $86 million and $202 million was recognized for the three and six months ended June 30, 2018 compared to $192 million and $466 million for the same periods in 2017 . For a limited number of the matters disclosed in this Note, and in the prior commitments and contingencies disclosure, for which a loss, whether in excess of a related accrued liability or where there is no accrued liability, is reasonably possible in future periods, the Corporation is able to estimate a range of possible loss. In cases in which the Corporation possesses sufficient appropriate information to estimate a range of possible loss, that estimate is aggregated and disclosed below. There may be other disclosed matters for which a loss is probable or reasonably possible but such an estimate of the range of possible loss may not be possible. For those matters where an estimate of the range of possible loss is reasonably possible, management currently estimates the aggregate range of possible loss is $0 to $1.2 billion in excess of the accrued liability, if any, related to those matters. This estimated range of possible loss is based upon currently available information and is subject to significant judgment and a variety of assumptions, and known and unknown uncertainties. The matters underlying the estimated range will change from time to time, and actual results may vary significantly from the current estimate. Therefore, this estimated range of possible loss represents what the Corporation believes to be an estimate of possible loss only for certain matters meeting these criteria. It does not represent the Corporation’s maximum loss exposure. Based on current knowledge, management does not believe that loss contingencies arising from pending matters, including the matters described herein and in the prior commitments and contingencies disclosure, will have a material adverse effect on the consolidated financial position or liquidity of the Corporation. However, in light of the inherent uncertainties involved in these matters, some of which are beyond the Corporation’s control, and the very large or indeterminate damages sought in some of these matters, an adverse outcome in one or more of these matters could be material to the Corporation’s results of operations or liquidity for any particular reporting period. Ambac Bond Insurance Litigation Ambac I On June 27, 2018, the New York Court of Appeals affirmed the May 16, 2017 decision of the First Department. Interchange Litigation In June 2018, Defendants reached an agreement in principle with the representatives of the putative Rule 23(b)(3) class, subject to final settlement documentation and court approval. Mortgage Appraisal Litigation On May 22, 2018, the U.S. Court of Appeals for the Ninth Circuit denied Defendants’ petition for permission to file an interlocutory appeal of the District Court's ruling granting class certification.

Shareholders' Equity

Shareholders' Equity	6 Months Ended
	Jun. 30, 2018
Equity [Abstract]
Shareholders' Equity	Shareholders’ Equity Common Stock Declared Quarterly Cash Dividends on Common Stock (1) Declaration Date Record Date Payment Date Dividend Per Share July 26, 2018 September 7, 2018 September 28, 2018 $ 0.15 April 25, 2018 June 1, 2018 June 29, 2018 0.12 January 31, 2018 March 2, 2018 March 30, 2018 0.12 (1) In 2018 , and through July 30, 2018 . On June 28, 2018, following the Federal Reserve's non-objection to the Corporation's 2018 Comprehensive Capital Analysis and Review (CCAR) capital plan, the Board of Directors (the Board) authorized the repurchase of approximately $20.6 billion in common stock from July 1, 2018 through June 30, 2019, including approximately $600 million to offset the effect of equity-based compensation plans during the same period. The common stock repurchase authorization includes both common stock and warrants. As part of the capital plan, on July 26, 2018, the Board declared a quarterly common stock dividend of $0.15 per share. During the three and six months ended June 30, 2018 , in connection with the previous authorizations, the Corporation repurchased and retired 165 million and 318 million shares of common stock, which reduced shareholders’ equity by $5.0 billion and $9.8 billion , respectively. The Corporation has warrants outstanding and exercisable to purchase 122 million shares of its common stock expiring on October 28, 2018, and warrants outstanding and exercisable to purchase 138 million shares of common stock expiring on January 16, 2019. These warrants were originally issued in connection with preferred stock issuances to the U.S. Department of the Treasury in 2009 and 2008, and are listed on the New York Stock Exchange. The exercise price of the warrants expiring on January 16, 2019 is subject to continued adjustment each time the quarterly cash dividend is in excess of $0.01 per common share to compensate the holders of the warrants for dilution resulting from an increased dividend. As a result of the Corporation’s second -quarter 2018 dividend of $0.12 per common share, the exercise price of the warrants expiring on January 16, 2019 was adjusted to $12.666 per share. The warrants expiring on October 28, 2018, which have an exercise price of $30.79 per share, also contain this anti-dilution provision except the adjustment is triggered only when the Corporation declares quarterly dividends at a level greater than $0.32 per common share. During the six months ended June 30, 2018 , in connection with employee stock plans, the Corporation issued 66 million shares and repurchased 25 million shares of its common stock to satisfy tax withholding obligations. At June 30, 2018 , the Corporation had reserved 801 million unissued shares of common stock for future issuances under employee stock plans, common stock warrants, convertible notes and preferred stock. Preferred Stock During the three months ended March 31, 2018 and June 30, 2018 , the Corporation declared $428 million and $318 million of cash dividends on preferred stock, or a total of $746 million for the six months ended June 30, 2018 . On May 16, 2018, the Corporation issued 54,000 shares of 6.00% Fixed Rate Non-Cumulative Preferred Stock, Series GG for $1.35 billion . Dividends are paid quarterly commencing on August 16, 2018. The Series GG preferred stock has a liquidation preference of $25,000 per share and is subject to certain restrictions in the event that the Corporation fails to declare and pay full dividends. On July 24, 2018, the Corporation issued 34,160 shares of 5.875% Non-Cumulative Preferred Stock, Series HH for $854 million . Dividends are paid quarterly commencing on October 24, 2018. The Series HH preferred stock has a liquidation preference of $25,000 per share and is subject to certain restrictions in the event the Corporation fails to declare and pay full dividends. During the three months ended June 30, 2018 , the Corporation partially redeemed Series K and D for $1.5 billion , and fully redeemed Series M for $1.3 billion . For more information on the Corporation's preferred stock, including liquidation preference, dividend requirements and redemption period, see Note 13 – Shareholders’ Equity to the Consolidated Financial Statements of the Corporation’s 2017 Annual Report on Form 10-K .

Accumulated Other Comprehensive

Accumulated Other Comprehensive Income (Loss)	6 Months Ended
	Jun. 30, 2018
Equity [Abstract]
Accumulated Other Comprehensive Income (Loss)	Accumulated Other Comprehensive Income (Loss) The table below presents the changes in accumulated OCI after-tax for the six months ended June 30, 2018 and 2017 . (Dollars in millions) Debt and Equity Securities Debit Valuation Adjustments Derivatives Employee Benefit Plans Foreign Currency Total Balance, December 31, 2016 $ (1,267 ) $ (767 ) $ (895 ) $ (3,480 ) $ (879 ) $ (7,288 ) Net change 469 (69 ) 132 54 97 683 Balance, June 30, 2017 $ (798 ) $ (836 ) $ (763 ) $ (3,426 ) $ (782 ) $ (6,605 ) Balance, December 31, 2017 $ (1,206 ) $ (1,060 ) $ (831 ) $ (3,192 ) $ (793 ) $ (7,082 ) Accounting change related to certain tax effects (1) (393 ) (220 ) (189 ) (707 ) 239 (1,270 ) Cumulative adjustment for hedge accounting change (2) — — 57 — — 57 Net change (4,994 ) 452 (367 ) 60 (189 ) (5,038 ) Balance, June 30, 2018 $ (6,593 ) $ (828 ) $ (1,330 ) $ (3,839 ) $ (743 ) $ (13,333 ) The table below presents the net change in fair value recorded in accumulated OCI, net realized gains and losses reclassified into earnings and other changes for each component of OCI pre- and after-tax for the six months ended June 30, 2018 and 2017 . Changes in OCI Components Pre- and After-tax Pretax Tax effect After- tax Pretax Tax effect After- tax Six Months Ended June 30 (Dollars in millions) 2018 2017 Debt and equity securities: Net increase (decrease) in fair value $ (6,700 ) $ 1,702 $ (4,998 ) $ 885 $ (330 ) $ 555 Net realized (gains) losses reclassified into earnings (3) 8 (4 ) 4 (140 ) 54 (86 ) Net change (6,692 ) 1,698 (4,994 ) 745 (276 ) 469 Debit valuation adjustments: Net increase (decrease) in fair value 576 (138 ) 438 (111 ) 33 (78 ) Net realized losses reclassified into earnings (3) 18 (4 ) 14 14 (5 ) 9 Net change 594 (142 ) 452 (97 ) 28 (69 ) Derivatives: Net increase (decrease) in fair value (578 ) 169 (409 ) 61 (22 ) 39 Reclassifications into earnings: Net interest income 83 (21 ) 62 220 (83 ) 137 Personnel expense (27 ) 7 (20 ) (71 ) 27 (44 ) Net realized losses reclassified into earnings 56 (14 ) 42 149 (56 ) 93 Net change (522 ) 155 (367 ) 210 (78 ) 132 Employee benefit plans: Reclassifications into earnings: Net actuarial losses and other 78 (18 ) 60 85 (31 ) 54 Net realized losses reclassified into earnings (4) 78 (18 ) 60 85 (31 ) 54 Net change 78 (18 ) 60 85 (31 ) 54 Foreign currency: Net increase (decrease) in fair value (50 ) (138 ) (188 ) (332 ) 336 4 Net realized (gains) losses reclassified into earnings (3) — (1 ) (1 ) (612 ) 705 93 Net change (50 ) (139 ) (189 ) (944 ) 1,041 97 Total other comprehensive income (loss) $ (6,592 ) $ 1,554 $ (5,038 ) $ (1 ) $ 684 $ 683 (1) Effective January 1, 2018, the Corporation adopted the accounting standard on tax effects in accumulated OCI related to the Tax Act. Accordingly, certain tax effects were reclassified from accumulated OCI to retained earnings. For additional information, see Note 1 – Summary of Significant Accounting Principles . (2) Reflects the Corporation’s adoption of the hedge accounting standard. For additional information, see Note 1 – Summary of Significant Accounting Principles . (3) Reclassifications of pretax debt and equity securities, DVA and foreign currency (gains) losses are recorded in other income in the Consolidated Statement of Income. (4) Reclassifications of pretax employee benefit plan costs are recorded in other general operating expense in the Consolidated Statement of Income.

Earnings Per Common Share

Earnings Per Common Share	6 Months Ended
	Jun. 30, 2018
Earnings Per Share [Abstract]
Earnings Per Common Share	Earnings Per Common Share The calculation of earnings per common share (EPS) and diluted EPS for the three and six months ended June 30, 2018 and 2017 is presented below. For more information on the calculation of EPS, see Note 1 – Summary of Significant Accounting Principles to the Consolidated Financial Statements of the Corporation’s 2017 Annual Report on Form 10-K . Three Months Ended June 30 Six Months Ended June 30 (In millions, except per share information) 2018 2017 2018 2017 Earnings per common share Net income $ 6,784 $ 5,106 $ 13,702 $ 10,443 Preferred stock dividends (318 ) (361 ) (746 ) (863 ) Net income applicable to common shareholders $ 6,466 $ 4,745 $ 12,956 $ 9,580 Average common shares issued and outstanding 10,181.7 10,013.5 10,251.7 10,056.1 Earnings per common share $ 0.64 $ 0.47 $ 1.26 $ 0.95 Diluted earnings per common share Net income applicable to common shareholders $ 6,466 $ 4,745 $ 12,956 $ 9,580 Add preferred stock dividends due to assumed conversions (1) — 75 — 150 Net income allocated to common shareholders $ 6,466 $ 4,820 $ 12,956 $ 9,730 Average common shares issued and outstanding 10,181.7 10,013.5 10,251.7 10,056.1 Dilutive potential common shares (2) 127.7 821.3 138.2 820.6 Total diluted average common shares issued and outstanding 10,309.4 10,834.8 10,389.9 10,876.7 Diluted earnings per common share $ 0.63 $ 0.44 $ 1.25 $ 0.89 (1) Represents the Series T dividends under the “if-converted” method prior to conversion. (2) Includes incremental dilutive shares from restricted stock units, restricted stock and warrants. The Corporation previously issued warrants to purchase 700 million shares of the Corporation’s common stock to the holders of the Series T 6% Non-cumulative preferred stock (Series T). In the third quarter of 2017, the Series T holders exercised the warrants and acquired the 700 million shares of the Corporation’s common stock. For both the three and six months ended June 30, 2017 , the 700 million average dilutive potential common shares were included in the diluted share count under the “if-converted” method. For both the three and six months ended June 30, 2018 and 2017 , 62 million average dilutive potential common shares associated with the Series L preferred stock were not included in the diluted share count because the result would have been antidilutive under the “if-converted” method. For the three and six months ended June 30, 2018 , average options to purchase three million and six million shares of common stock were outstanding but not included in the computation of EPS because the result would have been antidilutive under the treasury stock method compared to 18 million and 24 million for the same periods in 2017. For the three and six months ended June 30, 2018 , average warrants to purchase 140 million and 141 million shares of common stock were included in the diluted EPS calculation under the treasury stock method compared to 150 million shares of common stock for both periods in 2017. For both the three and six months ended June 30, 2018 and 2017 , average warrants to purchase 122 million shares of common stock were outstanding but not included in the computation of EPS because the result would have been antidilutive under the treasury stock method.

Fair Value Measurements

Fair Value Measurements	6 Months Ended
	Jun. 30, 2018
Fair Value Disclosures [Abstract]
Fair Value Measurements	Fair Value Measurements Under applicable accounting standards, fair value is defined as the exchange price that would be received for an asset or paid to transfer a liability (an exit price) in the principal or most advantageous market for the asset or liability in an orderly transaction between market participants on the measurement date. The Corporation determines the fair values of its financial instruments under applicable accounting standards and conducts a review of its fair value hierarchy classifications on a quarterly basis. Transfers into or out of fair value hierarchy classifications are considered to be effective as of the beginning of the quarter in which they occur. During the six months ended June 30, 2018 , there were no changes to valuation approaches or techniques that had, or are expected to have, a material impact on the Corporation’s consolidated financial position or results of operations. For more information regarding the fair value hierarchy and how the Corporation measures fair value and valuation processes and techniques, see Note 1 – Summary of Significant Accounting Principles and Note 20 – Fair Value Measurements to the Consolidated Financial Statements of the Corporation’s 2017 Annual Report on Form 10-K . The Corporation accounts for certain financial instruments under the fair value option. For additional information, see Note 15 – Fair Value Option . Recurring Fair Value Assets and liabilities carried at fair value on a recurring basis at June 30, 2018 and December 31, 2017 , including financial instruments which the Corporation accounts for under the fair value option, are summarized in the following tables. June 30, 2018 Fair Value Measurements (Dollars in millions) Level 1 Level 2 Level 3 Netting Adjustments (1) Assets/Liabilities at Fair Value Assets Federal funds sold and securities borrowed or purchased under agreements to resell $ — $ 59,763 $ — $ — $ 59,763 Trading account assets: U.S. Treasury and agency securities (2) 32,923 747 — — 33,670 Corporate securities, trading loans and other — 29,280 1,638 — 30,918 Equity securities (3) 55,128 25,075 228 — 80,431 Non-U.S. sovereign debt 9,646 19,434 368 — 29,448 Mortgage trading loans, MBS and ABS: U.S. government-sponsored agency guaranteed (2) — 19,341 — — 19,341 Mortgage trading loans, ABS and other MBS — 8,089 1,523 — 9,612 Total trading account assets (4) 97,697 101,966 3,757 — 203,420 Derivative assets (3) 8,951 347,112 4,511 (315,364 ) 45,210 AFS debt securities: U.S. Treasury and agency securities 51,173 1,561 — — 52,734 Mortgage-backed securities: Agency — 157,000 — — 157,000 Agency-collateralized mortgage obligations — 6,035 — — 6,035 Non-agency residential — 2,081 453 — 2,534 Commercial — 13,600 — — 13,600 Non-U.S. securities 747 5,915 3 — 6,665 Other taxable securities — 4,387 99 — 4,486 Tax-exempt securities — 19,064 1 — 19,065 Total AFS debt securities 51,920 209,643 556 — 262,119 Other debt securities carried at fair value: Mortgage-backed securities: Non-agency residential — 2,248 287 — 2,535 Non-U.S. securities 9,097 1,303 — — 10,400 Other taxable securities — 202 — — 202 Total other debt securities carried at fair value 9,097 3,753 287 — 13,137 Loans and leases — 5,734 493 — 6,227 Loans held-for-sale — 2,268 577 — 2,845 Other assets (5) 16,861 1,838 3,184 — 21,883 Total assets $ 184,526 $ 732,077 $ 13,365 $ (315,364 ) $ 614,604 Liabilities Interest-bearing deposits in U.S. offices $ — $ 513 $ — $ — $ 513 Federal funds purchased and securities loaned or sold under agreements to repurchase — 32,724 — — 32,724 Trading account liabilities: U.S. Treasury and agency securities 13,783 508 — — 14,291 Equity securities (3) 37,221 3,966 — — 41,187 Non-U.S. sovereign debt 12,943 10,754 — — 23,697 Corporate securities and other — 7,818 35 — 7,853 Total trading account liabilities 63,947 23,046 35 — 87,028 Derivative liabilities (3) 8,058 329,685 6,099 (310,237 ) 33,605 Short-term borrowings — 3,396 — — 3,396 Accrued expenses and other liabilities 19,159 2,019 — — 21,178 Long-term debt — 27,152 1,225 — 28,377 Total liabilities $ 91,164 $ 418,535 $ 7,359 $ (310,237 ) $ 206,821 (1) Amounts represent the impact of legally enforceable master netting agreements and also cash collateral held or placed with the same counterparties. (2) Includes $20.0 billion of GSE obligations. (3) During the six months ended June 30, 2018 , for trading account assets and liabilities, $6.2 billion of equity securities assets and $2.7 billion of equity securities liabilities were transferred from Level 1 to Level 2 and $5.3 billion of equity securities assets and $2.4 billion of equity securities liabilities were transferred from Level 2 to Level 1 based on the liquidity of the positions. In addition, $967 million of derivative assets and $413 million of derivative liabilities were transferred from Level 1 to Level 2 and $1.5 billion of derivative assets and $1.0 billion of derivative liabilities were transferred from Level 2 to Level 1 based on the observability of inputs used to measure fair value. For further disaggregation of derivative assets and liabilities, see Note 3 – Derivatives . (4) Includes securities with a fair value of $13.1 billion that were segregated in compliance with securities regulations or deposited with clearing organizations. This amount is included in the parenthetical disclosure on the Consolidated Balance Sheet. (5) Includes MSRs of $2.2 billion . December 31, 2017 Fair Value Measurements (Dollars in millions) Level 1 Level 2 Level 3 Netting Adjustments (1) Assets/Liabilities at Fair Value Assets Federal funds sold and securities borrowed or purchased under agreements to resell $ — $ 52,906 $ — $ — $ 52,906 Trading account assets: U.S. Treasury and agency securities (2, 3) 38,720 1,922 — — 40,642 Corporate securities, trading loans and other — 28,714 1,864 — 30,578 Equity securities (3) 60,747 23,958 235 — 84,940 Non-U.S. sovereign debt (3) 6,545 15,839 556 — 22,940 Mortgage trading loans, MBS and ABS: U.S. government-sponsored agency guaranteed (2) — 20,586 — — 20,586 Mortgage trading loans, ABS and other MBS — 8,174 1,498 — 9,672 Total trading account assets (4) 106,012 99,193 4,153 — 209,358 Derivative assets (3) 6,305 341,178 4,067 (313,788 ) 37,762 AFS debt securities: U.S. Treasury and agency securities 51,915 1,608 — — 53,523 Mortgage-backed securities: Agency — 192,929 — — 192,929 Agency-collateralized mortgage obligations — 6,804 — — 6,804 Non-agency residential — 2,669 — — 2,669 Commercial — 13,684 — — 13,684 Non-U.S. securities 772 5,880 25 — 6,677 Other taxable securities — 5,261 509 — 5,770 Tax-exempt securities — 20,106 469 — 20,575 Total AFS debt securities 52,687 248,941 1,003 — 302,631 Other debt securities carried at fair value: Mortgage-backed securities: Agency-collateralized mortgage obligations — 5 — — 5 Non-agency residential — 2,764 — — 2,764 Non-U.S. securities 8,191 1,297 — — 9,488 Other taxable securities — 229 — — 229 Total other debt securities carried at fair value 8,191 4,295 — — 12,486 Loans and leases — 5,139 571 — 5,710 Loans held-for-sale — 1,466 690 — 2,156 Other assets (5) 19,367 789 2,425 — 22,581 Total assets $ 192,562 $ 753,907 $ 12,909 $ (313,788 ) $ 645,590 Liabilities Interest-bearing deposits in U.S. offices $ — $ 449 $ — $ — $ 449 Federal funds purchased and securities loaned or sold under agreements to repurchase — 36,182 — — 36,182 Trading account liabilities: U.S. Treasury and agency securities 17,266 734 — — 18,000 Equity securities (3) 33,019 3,885 — — 36,904 Non-U.S. sovereign debt (3) 11,976 7,382 — — 19,358 Corporate securities and other — 6,901 24 — 6,925 Total trading account liabilities 62,261 18,902 24 — 81,187 Derivative liabilities (3) 6,029 334,261 5,781 (311,771 ) 34,300 Short-term borrowings — 1,494 — — 1,494 Accrued expenses and other liabilities 21,887 945 8 — 22,840 Long-term debt — 29,923 1,863 — 31,786 Total liabilities $ 90,177 $ 422,156 $ 7,676 $ (311,771 ) $ 208,238 (1) Amounts represent the impact of legally enforceable master netting agreements and also cash collateral held or placed with the same counterparties. (2) Includes $21.3 billion of GSE obligations. (3) During 2017 , for trading account assets and liabilities, $1.1 billion of U.S. Treasury and agency securities assets, $5.3 billion of equity securities assets, $3.1 billion of equity securities liabilities, $3.3 billion of non-U.S. sovereign debt assets and $1.5 billion of non-U.S. sovereign debt liabilities were transferred from Level 1 to Level 2 based on the liquidity of the positions. In addition, $14.1 billion of equity securities assets and $4.3 billion of equity securities liabilities were transferred from Level 2 to Level 1. Also in 2017 , $4.2 billion of derivative assets and $3.0 billion of derivative liabilities were transferred from Level 1 to Level 2 and $758 million of derivative assets and $608 million of derivative liabilities were transferred from Level 2 to Level 1 based on the observability of inputs used to measure fair value. For further disaggregation of derivative assets and liabilities, see Note 3 – Derivatives . (4) Includes securities with a fair value of $16.8 billion that were segregated in compliance with securities regulations or deposited with clearing organizations. This amount is included in the parenthetical disclosure on the Consolidated Balance Sheet. (5) Includes MSRs of $2.3 billion . The following tables present a reconciliation of all assets and liabilities measured at fair value on a recurring basis using significant unobservable inputs (Level 3) during the three and six months ended June 30, 2018 and 2017 , including net realized and unrealized gains (losses) included in earnings and accumulated OCI. Level 3 – Fair Value Measurements for the Three Months Ended June 30, 2018 (1) Balance April 1 2018 Total Realized/Unrealized Gains (Losses) (2) Gains (3) Gross Gross Level 3 Gross Level 3 Balance Change in Unrealized Gains (Losses) Related to Financial Instruments Still Held (2) (Dollars in millions) Purchases Sales Issuances Settlements Trading account assets: Corporate securities, trading loans and other $ 1,716 $ (37 ) $ (1 ) $ 81 $ (75 ) $ — $ (74 ) $ 145 $ (117 ) $ 1,638 $ (67 ) Equity securities 212 1 — 2 (4 ) — (4 ) 29 (8 ) 228 (3 ) Non-U.S. sovereign debt 401 13 (44 ) 7 — — — 8 (17 ) 368 13 Mortgage trading loans, ABS and other MBS 1,372 42 — 192 (256 ) — (38 ) 256 (45 ) 1,523 32 Total trading account assets 3,701 19 (45 ) 282 (335 ) — (116 ) 438 (187 ) 3,757 (25 ) Net derivative assets (4) (1,138 ) (239 ) — 195 (591 ) — 175 (4 ) 14 (1,588 ) (251 ) AFS debt securities: Non-agency residential MBS — 8 (14 ) — — — — 459 — 453 — Non-U.S. securities 23 — (1 ) — (10 ) — (12 ) 3 — 3 — Other taxable securities 43 1 (2 ) — — — (3 ) 60 — 99 — Tax-exempt securities — — — — — — — 1 — 1 — Total AFS debt securities 66 9 (17 ) — (10 ) — (15 ) 523 — 556 — Other debt securities carried at fair value – Non-agency residential MBS — (4 ) — — (7 ) — — 298 — 287 5 Loans and leases (5, 6) 526 (4 ) — — (5 ) — (24 ) — — 493 (4 ) Loans held-for-sale (5) 685 (12 ) (27 ) — — — (37 ) — (32 ) 577 (16 ) Other assets (6, 7) 3,295 76 — 2 (8 ) 23 (169 ) — (35 ) 3,184 8 Trading account liabilities – Corporate securities and other (26 ) 1 — — (9 ) (1 ) — — — (35 ) 1 Accrued expenses and other liabilities (5) (8 ) — — — — — 8 — — — — Long-term debt (5) (1,351 ) 63 2 4 — (53 ) 151 (114 ) 73 (1,225 ) 66 (1) Assets (liabilities). For assets, increase (decrease) to Level 3 and for liabilities, (increase) decrease to Level 3. (2) Includes gains (losses) reported in earnings in the following income statement line items: Trading account assets/liabilities - predominantly trading account profits; Net derivative assets - primarily trading account profits and other income; Loans held-for-sale - other income; Other assets - primarily other income related to MSRs; Long-term debt - trading account profits. For MSRs, the amounts reflect the changes in modeled MSR fair value due to observed changes in interest rates, volatility, spreads and the shape of the forward swap curve, and periodic adjustments to the valuation model to reflect changes in the modeled relationships between inputs and projected cash flows, as well as changes in cash flow assumptions including cost to service. (3) Includes unrealized gains (losses) in OCI on AFS debt securities, foreign currency translation adjustments and the impact of changes in the Corporation’s credit spreads on long-term debt accounted for under the fair value option. For additional information, see Note 1 – Summary of Significant Accounting Principles to the Consolidated Financial Statements of the Corporation’s 2017 Annual Report on Form 10-K . (4) Net derivative assets include derivative assets of $4.5 billion and derivative liabilities of $6.1 billion . (5) Amounts represent instruments that are accounted for under the fair value option. (6) Issuances represent loan originations and MSRs recognized following securitizations or whole-loan sales. (7) Settlements primarily represent the net change in fair value of the MSR asset due to the recognition of modeled cash flows and the passage of time. Transfers into Level 3, primarily due to decreased price observability, during the three months ended June 30, 2018 included $438 million of trading account assets, $523 million of AFS debt securities, $298 million of other debt securities carried at fair value and $114 million of long-term debt. Transfers occur on a regular basis for long-term debt instruments due to changes in the impact of unobservable inputs on the value of the embedded derivative in relation to the instrument as a whole. Transfers out of Level 3, primarily due to increased price observability, during the three months ended June 30, 2018 included $187 million of trading account assets. Level 3 – Fair Value Measurements for the Three Months Ended June 30, 2017 (1) Balance 2017 Total Realized/Unrealized Gains (Losses) (2) Gains (3) Gross Gross Level 3 Gross Level 3 Balance 2017 Change in Unrealized Gains (Losses) Related to Financial Instruments Still Held (2) (Dollars in millions) Purchases Sales Issuances Settlements Trading account assets: Corporate securities, trading loans and other $ 2,029 $ 64 $ — $ 119 $ (120 ) $ — $ (108 ) $ 143 $ (350 ) $ 1,777 $ 30 Equity securities 288 3 — 22 (47 ) — — 30 (67 ) 229 — Non-U.S. sovereign debt 527 12 (16 ) 26 (50 ) — (62 ) 69 — 506 12 Mortgage trading loans, ABS and other MBS 1,215 78 (1 ) 258 (314 ) — (69 ) 76 (11 ) 1,232 53 Total trading account assets 4,059 157 (17 ) 425 (531 ) — (239 ) 318 (428 ) 3,744 95 Net derivative assets (4) (1,665 ) (372 ) — 208 (229 ) — 274 — (19 ) (1,803 ) (368 ) AFS debt securities: Non-U.S. securities 207 1 9 22 — — (100 ) — — 139 — Other taxable securities 579 — 1 5 — — (8 ) — (94 ) 483 — Tax-exempt securities 520 — (2 ) — — — — — — 518 — Total AFS debt securities 1,306 1 8 27 — — (108 ) — (94 ) 1,140 — Other debt securities carried at fair value – Non-agency residential MBS 24 — — — — — (1 ) — — 23 — Loans and leases (5, 6) 702 6 — — — — (34 ) — (7 ) 667 6 Loans held-for-sale (5) 792 42 (9 ) 2 (19 ) — (128 ) 100 (14 ) 766 26 Other assets (6, 7) 2,841 2 12 2 1 63 (190 ) 64 — 2,795 (71 ) Federal funds purchased and securities loaned or sold under agreements to repurchase (5) (226 ) (6 ) — — — (10 ) 8 (58 ) 157 (135 ) (6 ) Trading account liabilities – Corporate securities and other (35 ) 10 — 4 — (1 ) — — — (22 ) (1 ) Accrued expenses and other liabilities (5) (9 ) — — — — — — — — (9 ) — Long-term debt (5) (1,660 ) 10 (18 ) 7 — (20 ) 124 (108 ) 19 (1,646 ) 10 (1) Assets (liabilities). For assets, increase (decrease) to Level 3 and for liabilities, (increase) decrease to Level 3. (2) Includes gains (losses) reported in earnings in the following income statement line items: Trading account assets/liabilities - predominantly trading account profits; Net derivative assets - primarily trading account profits and other income; Loans held-for-sale - other income; Other assets - primarily other income related to MSRs; Long-term debt - trading account profits. For MSRs, the amounts reflect the changes in modeled MSR fair value due to observed changes in interest rates, volatility, spreads and the shape of the forward swap curve, and periodic adjustments to the valuation model to reflect changes in the modeled relationships between inputs and projected cash flows, as well as changes in cash flow assumptions including cost to service. (3) Includes unrealized gains (losses) in OCI on AFS debt securities, foreign currency translation adjustments and the impact of changes in the Corporation’s credit spreads on long-term debt accounted for under the fair value option. For additional information, see Note 1 – Summary of Significant Accounting Principles to the Consolidated Financial Statements of the Corporation’s 2017 Annual Report on Form 10-K . (4) Net derivative assets include derivative assets of $4.0 billion and derivative liabilities of $5.8 billion . (5) Amounts represent instruments that are accounted for under the fair value option. (6) Issuances represent loan originations and MSRs recognized following securitizations or whole-loan sales. (7) Settlements primarily represent the net change in fair value of the MSR asset due to the recognition of modeled cash flows and the passage of time. Transfers into Level 3, primarily due to decreased price observability, during the three months ended June 30, 2017 included $318 million of trading account assets, $100 million of LHFS and $108 million of long-term debt. Transfers occur on a regular basis for long-term debt instruments due to changes in the impact of unobservable inputs on the value of the embedded derivative in relation to the instrument as a whole. Transfers out of Level 3, primarily due to increased price observability, during the three months ended June 30, 2017 included $428 million of trading account assets and $157 million of federal funds purchased and securities loaned or sold under agreements to repurchase. Level 3 – Fair Value Measurements for the Six Months Ended June 30, 2018 (1) (Dollars in millions) Balance January 1 2018 Total Realized/Unrealized Gains (Losses) (2) Gains (3) Gross Gross Level 3 Gross Level 3 Balance Change in Unrealized Gains (Losses) Related to Financial Instruments Still Held (2) Purchases Sales Issuances Settlements Trading account assets: Corporate securities, trading loans and other $ 1,864 $ (28 ) $ (1 ) $ 274 $ (211 ) $ — $ (213 ) $ 248 $ (295 ) $ 1,638 $ (76 ) Equity securities 235 9 — 8 (11 ) — (4 ) 30 (39 ) 228 9 Non-U.S. sovereign debt 556 29 (42 ) 7 (50 ) — (8 ) 8 (132 ) 368 28 Mortgage trading loans, ABS and other MBS 1,498 141 3 317 (576 ) — (107 ) 350 (103 ) 1,523 81 Total trading account assets 4,153 151 (40 ) 606 (848 ) — (332 ) 636 (569 ) 3,757 42 Net derivative assets (4) (1,714 ) 256 — 348 (853 ) — 377 67 (69 ) (1,588 ) 325 AFS debt securities: Non-agency residential MBS — 8 (14 ) — — — — 459 — 453 — Non-U.S. securities 25 — (1 ) — (10 ) — (14 ) 3 — 3 — Other taxable securities 509 2 (2 ) — — — (10 ) 60 (460 ) 99 — Tax-exempt securities 469 — — — — — — 1 (469 ) 1 — Total AFS debt securities (5) 1,003 10 (17 ) — (10 ) — (24 ) 523 (929 ) 556 — Other debt securities carried at fair value – Non-agency residential MBS — (4 ) — — (7 ) — — 298 — 287 5 Loans and leases (6, 7) 571 (20 ) — — (9 ) — (49 ) — — 493 (19 ) Loans held-for-sale (6) 690 12 (27 ) 12 — — (78 ) — (32 ) 577 5 Other assets (5, 7, 8) 2,425 268 — 2 (46 ) 52 (411 ) 929 (35 ) 3,184 145 Trading account liabilities – Corporate securities and other (24 ) 2 — — (11 ) (2 ) — — — (35 ) 1 Accrued expenses and other liabilities (6) (8 ) — — — — — 8 — — — — Long-term debt (6) (1,863 ) 86 3 9 — (120 ) 323 (147 ) 484 (1,225 ) 51 (1) Assets (liabilities). For assets, increase (decrease) to Level 3 and for liabilities, (increase) decrease to Level 3. (2) Includes gains (losses) reported in earnings in the following income statement line items: Trading account assets/liabilities - predominantly trading account profits; Net derivative assets - primarily trading account profits and other income; Loans held-for-sale - other income; Other assets - primarily other income related to MSRs; Long-term debt - primarily trading account profits. For MSRs, the amounts reflect the changes in modeled MSR fair value due to observed changes in interest rates, volatility, spreads and the shape of the forward swap curve, and periodic adjustments to the valuation model to reflect changes in the modeled relationships between inputs and projected cash flows, as well as changes in cash flow assumptions including cost to service. (3) Includes unrealized gains (losses) in OCI on AFS debt securities, foreign currency translation adjustments and the impact of changes in the Corporation’s credit spreads on long-term debt accounted for under the fair value option. For additional information, see Note 1 – Summary of Significant Accounting Principles to the Consolidated Financial Statements of the Corporation’s 2017 Annual Report on Form 10-K . (4) Net derivative assets include derivative assets of $4.5 billion and derivative liabilities of $6.1 billion . (5) Transfer relates to the reclassification of certain securities. (6) Amounts represent instruments that are accounted for under the fair value option. (7) Issuances represent loan originations and MSRs recognized following securitizations or whole-loan sales. (8) Settlements primarily represent the net change in fair value of the MSR asset due to the recognition of modeled cash flows and the passage of time. Transfers into Level 3, primarily due to decreased price observability, during the six months ended June 30, 2018 included $636 million of trading account assets, $523 million of AFS debt securities, $298 million of other debt securities carried at fair value and $147 million of long-term debt. Transfers occur on a regular basis for long-term debt instruments due to changes in the impact of unobservable inputs on the value of the embedded derivative in relation to the instrument as a whole. Transfers out of Level 3, primarily due to increased price observability, during the six months ended June 30, 2018 included $569 million of trading account assets and $484 million of long-term debt. Level 3 – Fair Value Measurements for the Six Months Ended June 30, 2017 (1) Balance 2017 Total Realized/Unrealized Gains (Losses) (2) Gains (3) Gross Gross Level 3 Gross Level 3 Balance Change in Unrealized Gains (Losses) Related to Financial Instruments Still Held (2) (Dollars in millions) Purchases Sales Issuances Settlements Trading account assets: Corporate securities, trading loans and other $ 2,777 $ 148 $ — $ 318 $ (600 ) $ — $ (235 ) $ 218 $ (849 ) $ 1,777 $ 57 Equity securities 281 15 — 42 (64 ) — (10 ) 102 (137 ) 229 (1 ) Non-U.S. sovereign debt 510 31 (6 ) 26 (59 ) — (68 ) 72 — 506 27 Mortgage trading loans, ABS and other MBS 1,211 185 (1 ) 597 (689 ) — (123 ) 104 (52 ) 1,232 117 Total trading account assets 4,779 379 (7 ) 983 (1,412 ) — (436 ) 496 (1,038 ) 3,744 200 Net derivative assets (4) (1,313 ) (846 ) — 408 (476 ) — 444 29 (49 ) (1,803 ) (773 ) AFS debt securities: Non-U.S. securities 229 1 12 42 — — (145 ) — — 139 — Other taxable securities 594 3 5 5 — — (30 ) — (94 ) 483 — Tax-exempt securities 542 — — — (56 ) — (3 ) 35 — 518 — Total AFS debt securities 1,365 4 17 47 (56 ) — (178 ) 35 (94 ) 1,140 — Other debt securities carried at fair value – Non-agency residential MBS 25 (1 ) — — — — (1 ) — — 23 — Loans and leases (5, 6) 720 18 — — — — (64 ) — (7 ) 667 16 Loans held-for-sale (5) 656 71 (3 ) 2 (155 ) — (188 ) 415 (32 ) 766 71 Other assets (6, 7) 2,986 (31 ) 12 2 6 138 (382 ) 64 — 2,795 (194 ) Federal funds purchased and securities loaned or sold under agreements to repurchase (5) (359 ) (5 ) — — — (12 ) 36 (58 ) 263 (135 ) (3 ) Trading account liabilities – Corporate securities and other (27 ) 12 — 4 (10 ) (1 ) — — — (22 ) (1 ) Accrued expenses and other liabilities (5) (9 ) — — — — — — — — (9 ) — Long-term debt (5) (1,514 ) (73 ) (11 ) 18 — (150 ) 283 (286 ) 87 (1,646 ) (38 ) (1) Assets (liabilities). For assets, increase (decrease) to Level 3 and for liabilities, (increase) decrease to Level 3. (2) Includes gains (losses) reported in earnings in the following income statement line items: Trading account assets/liabilities - predominantly trading account profits; Net derivative assets - primarily trading account profits and other income; Loans held-for-sale - other income; Other assets - primarily other income related to MSRs; Long-term debt - primarily trading account profits. For MSRs, the amounts reflect the changes in modeled MSR fair value due to observed changes in interest rates, volatility, spreads and the shape of the forward swap curve, and periodic adjustments to the valuation model to reflect changes in the modeled relationships between inputs and projected cash flows, as well as changes in cash flow assumptions including cost to service. (3) Includes unrealized gains (losses) in OCI on AFS debt securities, foreign currency translation adjustments and the impact of changes in the Corporation’s credit spreads on long-term debt accounted for under the fair value option. For additional information, see Note 1 – Summary of Significant Accounting Principles to the Consolidated Financial Statements of the Corporation’s 2017 Annual Report on Form 10-K . (4) Net derivative assets include derivative assets of $4.0 billion and derivative liabilities of $5.8 billion . (5) Amounts represent instruments that are accounted for under the fair value option. (6) Issuances represent loan originations and MSRs recognized following securitizations or whole-loan sales. (7) Settlements primarily represent the net change in fair value of the MSR asset due to the recognition of modeled cash flows and the passage of time. Transfers into Level 3, primarily due to decreased price observability, during the six months ended June 30, 2017 included $496 million of trading account assets, $415 million of LHFS and $286 million of long-term debt. Transfers occur on a regular basis for long-term debt instruments due to changes in the impact of unobservable inputs on the value of the embedded derivative in relation to the instrument as a whole. Transfers out of Level 3, primarily due to increased price observability, during the six months ended June 30, 2017 included $1.0 billion of trading account assets and $263 million of federal funds purchased and securities loaned or sold under agreements to repurchase. The following tables present information about significant unobservable inputs related to the Corporation’s material categories of Level 3 financial assets and liabilities at June 30, 2018 and December 31, 2017 . Quantitative Information about Level 3 Fair Value Measurements at June 30, 2018 (Dollars in millions) Inputs Financial Instrument Fair Value Valuation Technique Significant Unobservable Inputs Ranges of Inputs Weighted Average Loans and Securities (1) Instruments backed by residential real estate assets $ 1,656 Discounted cash flow, Market comparables Yield 0% to 25% 7% Trading account assets – Mortgage trading loans, ABS and other MBS 320 Prepayment speed 0% to 20% CPR 11% Loans and leases 492 Default rate 0% to 3% CDR 1% Loans held-for-sale 1 Loss severity 0% to 52% 17% AFS debt securities, primarily non-agency residential 556 Price $0 to $198 $71 Other debt securities carried at fair value - Non-agency residential 287 Instruments backed by commercial real estate assets $ 355 Discounted cash flow Yield 0% to 25% 14% Trading account assets – Corporate securities, trading loans and other 257 Price $0 to $101 $77 Trading account assets – Mortgage trading loans, ABS and other MBS 98 Commercial loans, debt securities and other $ 3,431 Discounted cash flow, Market comparables Yield 1% to 36% 12% Trading account assets – Corporate securities, trading loans and other 1,381 Prepayment speed 10% to 20% 14% Trading account assets – Non-U.S. sovereign debt 368 Default rate 3% to 4% 4% Trading account assets – Mortgage trading loans, ABS and other MBS 1,105 Loss severity 35% to 40% 38% Loans and leases 1 Price $0 to $141 $67 Loans held-for-sale 576 Other assets, primarily auction rate securities $ 955 Discounted cash flow, Market comparables Price $10 to $100 $96 MSRs $ 2,229 Discounted cash flow Weighted-average life, fixed rate (4) 0 to 14 years 6 years Weighted-average life, variable rate (4) 0 to 10 years 3 years Option-adjusted spread, fixed rate 9% to 14% 10% Option-adjusted spread, variable rate 9% to 15% 12% Structured liabilities Long-term debt $ (1,225 ) Discounted cash flow, Market comparables, Industry standard derivative pricing (2) Equity correlation 11% to 100% 62% Long-dated equity volatilities 4% to 75% 24% Yield 13% to 36% 16% Price $0 to $100 $74 Net derivative assets Credit derivatives $ (528 ) Discounted cash flow, Stochastic recovery correlation model Yield 2% to 12% 4% Upfront points 0 points to 100 points 70 points Credit correlation 70% n/a Prepayment speed 15% to 20% CPR 15% Default rate 1% to 4% CDR 2% Loss severity 35% n/a Price $0 to $101 $72 Equity derivatives $ (1,651 ) Industry standard derivative pricing (2) Equity correlation 11% to 100% 62% Long-dated equity volatilities 4% to 75% 24% Commodity derivatives $ (13 ) Discounted cash flow, Industry standard derivative pricing (2) Natural gas forward price $1/MMBtu to $7/MMBtu $3/MMBtu Correlation 62% to 93% 81% Volatilities 11% to 465% 122% Interest rate derivatives $ 604 Industry standard derivative pricing (3) Correlation (IR/IR) 15% to 70% 47% Correlation (FX/IR) 0% to 46% 1% Long-dated inflation rates -18% to 34% 2% Long-dated inflation volatilities 0% to 1% 1% Total net derivative assets $ (1,588 ) (1) The categories are aggregated based upon product type which differs from financial statement classification. The following is a reconciliation to the line items in the table on page 100 : Trading account assets – Corporate securities, trading loans and other of $1.6 billion , Trading account assets – Non-U.S. sovereign debt of $368 million , Trading account assets – Mortgage trading loans, ABS and other MBS of $1.5 billion , AFS debt securities of $556 million , Other debt securities carried at fair value - Non-agency residential of $287 million , Other assets of $955 million , Loans and leases of $493 million and LHFS of $577 million . (2) Includes models such as Monte Carlo simulation and Black-Scholes. (3) Includes models such as Monte Carlo simulation, Black-Scholes and other methods that model the joint dynamics of interest, inflation and foreign exchange rates. (4) The weighted-average life is a product of changes in market rates of interest, prepayment rates and other model and cash flow assumptions. CPR = Constant Prepayment Rate CDR = Constant Default Rate MMBtu = Million British thermal units IR = Interest Rate FX = Foreign Exchange n/a = not applicable Quantitative Information about Level 3 Fair Value Measurements at December 31, 2017 (Dollars in millions) Inputs Financial Instrument Fair Valuation Significant Unobservable Ranges of Weighted Average Loans and Securities (1) Instruments backed by residential real estate assets $ 871 Discounted cash flow Yield 0% to 25% 6% Trading account assets – Mortgage trading loans, ABS and other MBS 298 Prepayment speed 0% to 22% CPR 12% Loans and leases 570 Default rate 0% to 3% CDR 1% Loans held-for-sale 3 Loss severity 0% to 53% 17% Instruments backed by commercial real estate assets $ 286 Discounted cash flow Yield 0% to 25% 9% Trading account assets – Corporate securities, trading loans and other 244 Price $0 to $100 $67 Trading account assets – Mortgage trading loans, ABS and other MBS 42 Commercial loans, debt securities and other $ 4,023 Discounted cash flow, Market comparables Yield 0% to 12% 5% Trading account assets – Corporate securities, trading loans and other 1,613 Prepayment speed 10% to 20% 16% Trading account assets – Non-U.S. sovereign debt 556 Default rate 3% to 4% 4% Trading account assets – Mortgage trading loans, ABS and other MBS 1,158 Loss severity 35% to 40% 37% AFS debt securities – Other taxable securities 8 Price $0 to $145 $63 Loans and leases 1 Loans held-for-sale 687 Auction rate securities $ 977 Discounted cash flow, Market comparables Price $10 to $100 $94 Trading account assets – Corporate securities, trading loans and other 7 AFS debt securities – Other taxable securities 501 AFS debt securities – Tax-exempt securities 469 MSRs $ 2,302 Discounted cash flow Weighted-average life, fixed rate (4) 0 to 14 years 5 yea

Fair Value Option

Fair Value Option	6 Months Ended
	Jun. 30, 2018
Fair Value Disclosures [Abstract]
Fair Value Option	Fair Value Option The Corporation elects to account for certain financial instruments under the fair value option. For more information on the primary financial instruments for which the fair value option elections have been made, see Note 21 – Fair Value Option to the Consolidated Financial Statements of the Corporation’s 2017 Annual Report on Form 10-K . The following tables provide information about the fair value carrying amount and the contractual principal outstanding of assets and liabilities accounted for under the fair value option at June 30, 2018 and December 31, 2017 , and information about where changes in the fair value of assets and liabilities accounted for under the fair value option are included in the Consolidated Statement of Income for the three and six months ended June 30, 2018 and 2017 . Fair Value Option Elections June 30, 2018 December 31, 2017 (Dollars in millions) Fair Value Carrying Amount Contractual Principal Outstanding Fair Value Carrying Amount Less Unpaid Principal Fair Value Carrying Amount Contractual Principal Outstanding Fair Value Carrying Amount Less Unpaid Principal Federal funds sold and securities borrowed or purchased under agreements to resell $ 59,763 $ 59,666 $ 97 $ 52,906 $ 52,907 $ (1 ) Loans reported as trading account assets (1) 5,816 12,876 (7,060 ) 5,735 11,804 (6,069 ) Trading inventory – other 13,983 n/a n/a 12,027 n/a n/a Consumer and commercial loans 6,227 6,270 (43 ) 5,710 5,744 (34 ) Loans held-for-sale 2,845 4,190 (1,345 ) 2,156 3,717 (1,561 ) Other assets 3 n/a n/a 3 n/a n/a Long-term deposits 513 483 30 449 421 28 Federal funds purchased and securities loaned or sold under agreements to repurchase 32,724 32,735 (11 ) 36,182 36,187 (5 ) Short-term borrowings 3,396 3,396 — 1,494 1,494 — Unfunded loan commitments 114 n/a n/a 120 n/a n/a Long-term debt (2) 28,377 29,057 (680 ) 31,786 31,512 274 (1) A significant portion of the loans reported as trading account assets are distressed loans that trade and were purchased at a deep discount to par, and the remainder are loans with a fair value near contractual principal outstanding. (2) Includes structured liabilities with a fair value of $28.0 billion and $31.4 billion , and contractual principal outstanding of $28.7 billion and $31.1 billion at June 30, 2018 and December 31, 2017 . n/a = not applicable Gains (Losses) Relating to Assets and Liabilities Accounted for Under the Fair Value Option Trading Account Profits Other Income Total Trading Account Profits Other Income Total Three Months Ended June 30 (Dollars in millions) 2018 2017 Loans reported as trading account assets $ (32 ) $ — $ (32 ) $ 47 $ — $ 47 Trading inventory – other (1) 1,361 — 1,361 522 — 522 Consumer and commercial loans 19 (11 ) 8 4 20 24 Loans held-for-sale (2) — (1 ) (1 ) (1 ) 76 75 Long-term debt (3, 4) 535 (15 ) 520 107 (34 ) 73 Other (5) 6 15 21 5 (1 ) 4 Total $ 1,889 $ (12 ) $ 1,877 $ 684 $ 61 $ 745 Six Months Ended June 30 2018 2017 Loans reported as trading account assets $ 71 $ — $ 71 $ 197 $ — $ 197 Trading inventory – other (1) 1,956 — 1,956 1,673 — 1,673 Consumer and commercial loans 125 (32 ) 93 9 39 48 Loans held-for-sale (2) 1 2 3 — 170 170 Long-term debt (3, 4) 1,354 (56 ) 1,298 (55 ) (71 ) (126 ) Other (5) 13 23 36 (53 ) 42 (11 ) Total $ 3,520 $ (63 ) $ 3,457 $ 1,771 $ 180 $ 1,951 (1) The gains in trading account profits are primarily offset by losses on trading liabilities that hedge these assets. (2) Includes the value of IRLCs on funded loans, including those sold during the period. (3) The majority of the net gains (losses) in trading account profits relate to the embedded derivatives in structured liabilities and are offset by gains (losses) on derivatives and securities that hedge these liabilities. (4) For the cumulative impact of changes in the Corporation’s own credit spreads and the amount recognized in accumulated OCI, see Note 12 – Accumulated Other Comprehensive Income (Loss) . For additional information on how the Corporation’s own credit spread is determined, see Note 20 – Fair Value Measurements to the Consolidated Financial Statements of the Corporation’s 2017 Annual Report on Form 10-K . (5) Includes gains (losses) on federal funds sold and securities borrowed or purchased under agreements to resell, long-term deposits, federal funds purchased and securities loaned or sold under agreements to repurchase, short-term borrowings and unfunded loan commitments. Gains (Losses) Related to Borrower-specific Credit Risk for Assets Accounted for Under the Fair Value Option Three Months Ended June 30 Six Months Ended June 30 (Dollars in millions) 2018 2017 2018 2017 Loans reported as trading account assets $ (2 ) $ 7 $ 11 $ 20 Consumer and commercial loans (10 ) 22 (27 ) 41 Loans held-for-sale 4 (1 ) 1 (1 )

Fair Value of Financial Instrum

Fair Value of Financial Instruments	6 Months Ended
	Jun. 30, 2018
Fair Value Disclosures [Abstract]
Fair Value of Financial Instruments	Fair Value of Financial Instruments The following disclosures include financial instruments that are not carried at fair value or only a portion of the ending balance at June 30, 2018 and December 31, 2017 is carried at fair value on the Consolidated Balance Sheet. Certain loans, deposits, long-term debt and loan commitments are accounted for under the fair value option. For additional information, see Note 21 – Fair Value Option to the Consolidated Financial Statements of the Corporation’s 2017 Annual Report on Form 10-K . Fair Value of Financial Instruments The carrying values and fair values by fair value hierarchy of certain financial instruments where only a portion of the ending balance was carried at fair value at June 30, 2018 and December 31, 2017 are presented in the following table. Fair Value of Financial Instruments Fair Value Carrying Value Level 2 Level 3 Total (Dollars in millions) June 30, 2018 Financial assets Loans $ 901,569 $ 61,161 $ 845,632 $ 906,793 Loans held-for-sale 6,511 5,121 1,446 6,567 Financial liabilities Deposits (1) 1,309,691 1,309,332 — 1,309,332 Long-term debt 226,595 230,268 1,225 231,493 Commercial unfunded lending commitments (2) 901 114 4,668 4,782 December 31, 2017 Financial assets Loans $ 904,399 $ 68,586 $ 849,576 $ 918,162 Loans held-for-sale 11,430 10,521 909 11,430 Financial liabilities Deposits (1) 1,309,545 1,309,398 — 1,309,398 Long-term debt 227,402 235,126 1,863 236,989 Commercial unfunded lending commitments (2) 897 120 3,908 4,028 (1) Includes demand deposits of $515.6 billion and $519.6 billion with no stated maturities at June 30, 2018 and December 31, 2017 . (2) The carrying value is included in accrued expenses and other liabilities on the Consolidated Balance Sheet. For more information on commitments, see Note 10 – Commitments and Contingencies .

Business Segment Information

Business Segment Information	6 Months Ended
	Jun. 30, 2018
Segment Reporting [Abstract]
Business Segment Information	Business Segment Information The Corporation reports its results of operations through the following four business segments: Consumer Banking , GWIM , Global Banking and Global Markets , with the remaining operations recorded in All Other . For additional information, see Note 23 – Business Segment Information to the Consolidated Financial Statements of the Corporation’s 2017 Annual Report on Form 10-K . The following tables present net income (loss) and the components thereto (with net interest income on an FTE basis) for the three and six months ended June 30, 2018 and 2017 and total assets at June 30, 2018 and 2017 for each business segment, as well as All Other, including a reconciliation of the four business segments’ total revenue, net of interest expense, on an FTE basis, and net income to the Consolidated Statement of Income, and total assets to the Consolidated Balance Sheet. Results of Business Segments and All Other At and for the three months ended June 30 Total Corporation (1) Consumer Banking Global Wealth & (Dollars in millions) 2018 2017 2018 2017 2018 2017 Net interest income (FTE basis) $ 11,804 $ 11,223 $ 6,620 $ 5,961 $ 1,543 $ 1,597 Noninterest income 10,959 11,843 2,591 2,548 3,166 3,098 Total revenue, net of interest expense (FTE basis) 22,763 23,066 9,211 8,509 4,709 4,695 Provision for credit losses 827 726 944 834 12 11 Noninterest expense 13,284 13,982 4,397 4,411 3,399 3,392 Income before income taxes (FTE basis) 8,652 8,358 3,870 3,264 1,298 1,292 Income tax expense (FTE basis) 1,868 3,252 987 1,233 330 488 Net income $ 6,784 $ 5,106 $ 2,883 $ 2,031 $ 968 $ 804 Period-end total assets $ 2,291,670 $ 2,254,714 $ 768,187 $ 735,176 $ 270,913 $ 274,746 Global Banking Global Markets All Other 2018 2017 2018 2017 2018 2017 Net interest income (FTE basis) $ 2,711 $ 2,541 $ 801 $ 864 $ 129 $ 260 Noninterest income (loss) 2,211 2,498 3,420 3,083 (429 ) 616 Total revenue, net of interest expense (FTE basis) 4,922 5,039 4,221 3,947 (300 ) 876 Provision for credit losses (23 ) 15 (1 ) 25 (105 ) (159 ) Noninterest expense 2,154 2,154 2,715 2,650 619 1,375 Income (loss) before income taxes (FTE basis) 2,791 2,870 1,507 1,272 (814 ) (340 ) Income tax expense (benefit) (FTE basis) 727 1,084 391 442 (567 ) 5 Net income (loss) $ 2,064 $ 1,786 $ 1,116 $ 830 $ (247 ) $ (345 ) Period-end total assets $ 424,971 $ 410,580 $ 637,110 $ 633,188 $ 190,489 $ 201,024 (1) There were no material intersegment revenues. Results of Business Segments and All Other At and for the six months ended June 30 Total Corporation (1) Consumer Banking Global Wealth & (Dollars in millions) 2018 2017 2018 2017 2018 2017 Net interest income (FTE basis) $ 23,562 $ 22,478 $ 13,130 $ 11,741 $ 3,137 $ 3,157 Noninterest income 22,476 23,033 5,113 5,051 6,428 6,130 Total revenue, net of interest expense (FTE basis) 46,038 45,511 18,243 16,792 9,565 9,287 Provision for credit losses 1,661 1,561 1,879 1,672 50 34 Noninterest expense 27,181 28,075 8,877 8,820 6,827 6,721 Income before income taxes (FTE basis) 17,196 15,875 7,487 6,300 2,688 2,532 Income tax expense (FTE basis) 3,494 5,432 1,909 2,377 685 955 Net income $ 13,702 $ 10,443 $ 5,578 $ 3,923 $ 2,003 $ 1,577 Period-end total assets $ 2,291,670 $ 2,254,714 $ 768,187 $ 735,176 $ 270,913 $ 274,746 Global Banking Global Markets All Other 2018 2017 2018 2017 2018 2017 Net interest income (FTE basis) $ 5,351 $ 5,143 $ 1,671 $ 1,913 $ 273 $ 524 Noninterest income (loss) 4,505 4,851 7,336 6,741 (906 ) 260 Total revenue, net of interest expense (FTE basis) 9,856 9,994 9,007 8,654 (633 ) 784 Provision for credit losses (7 ) 32 (4 ) 8 (257 ) (185 ) Noninterest expense 4,349 4,317 5,533 5,406 1,595 2,811 Income (loss) before income taxes (FTE basis) 5,514 5,645 3,478 3,240 (1,971 ) (1,842 ) Income tax expense (benefit) (FTE basis) 1,434 2,130 904 1,113 (1,438 ) (1,143 ) Net income (loss) $ 4,080 $ 3,515 $ 2,574 $ 2,127 $ (533 ) $ (699 ) Period-end total assets $ 424,971 $ 410,580 $ 637,110 $ 633,188 $ 190,489 $ 201,024 (1) There were no material intersegment revenues. Business Segment Reconciliations Three Months Ended June 30 Six Months Ended June 30 (Dollars in millions) 2018 2017 2018 2017 Segments’ total revenue, net of interest expense (FTE basis) $ 23,063 $ 22,190 $ 46,671 $ 44,727 Adjustments (1) : ALM activities (271 ) 104 (155 ) 59 Liquidating businesses, eliminations and other (29 ) 772 (478 ) 725 FTE basis adjustment (154 ) (237 ) (304 ) (434 ) Consolidated revenue, net of interest expense $ 22,609 $ 22,829 $ 45,734 $ 45,077 Segments’ total net income 7,031 5,451 14,235 11,142 Adjustments, net-of-taxes (1) : ALM activities (328 ) (86 ) (382 ) (265 ) Liquidating businesses, eliminations and other 81 (259 ) (151 ) (434 ) Consolidated net income $ 6,784 $ 5,106 $ 13,702 $ 10,443 June 30 2018 2017 Segments’ total assets $ 2,101,181 $ 2,053,690 Adjustments (1) : ALM activities, including securities portfolio 631,777 620,507 Other 80,901 98,178 Elimination of segment asset allocations to match liabilities (522,189 ) (517,661 ) Consolidated total assets $ 2,291,670 $ 2,254,714 (1) Adjustments include consolidated income, expense and asset amounts not specifically allocated to individual business segments. The tables below present noninterest income and the components thereto for the three and six months ended June 30, 2018 and 2017 for each business segment, as well as All Other . For additional information, see Note 1 – Summary of Significant Accounting Principles and Note 2 – Noninterest Income . Noninterest Income by Business Segment and All Other Total Corporation Consumer Banking Global Wealth & Three Months Ended June 30 (Dollars in millions) 2018 2017 2018 2017 2018 2017 Card income Interchange fees $ 1,070 $ 983 $ 882 $ 800 $ 27 $ 24 Other card income 472 486 460 448 11 10 Total card income 1,542 1,469 1,342 1,248 38 34 Service charges Deposit-related fees 1,680 1,696 1,072 1,061 17 19 Lending-related fees 274 281 — — — — Total service charges 1,954 1,977 1,072 1,061 17 19 Investment and brokerage services Asset management fees 2,513 2,288 37 31 2,476 2,257 Brokerage fees 945 1,172 43 46 461 572 Total investment and brokerage services 3,458 3,460 80 77 2,937 2,829 Investment banking income Underwriting income 719 709 — — 73 95 Syndication fees 400 340 — — — — Financial advisory services 303 483 — — — 1 Total investment banking income 1,422 1,532 — — 73 96 Trading account profits 2,315 1,956 2 1 27 33 Other income 268 1,449 95 161 74 87 Total noninterest income $ 10,959 $ 11,843 $ 2,591 $ 2,548 $ 3,166 $ 3,098 Global Banking Global Markets All Other (1) Three Months Ended June 30 2018 2017 2018 2017 2018 2017 Card income Interchange fees $ 136 $ 131 $ 25 $ 24 $ — $ 4 Other card income 2 3 — — (1 ) 25 Total card income 138 134 25 24 (1 ) 29 Service charges Deposit-related fees 540 571 45 40 6 5 Lending-related fees 229 238 45 43 — — Total service charges 769 809 90 83 6 5 Investment and brokerage services Asset management fees — — — — — — Brokerage fees 19 38 430 521 (8 ) (5 ) Total investment and brokerage services 19 38 430 521 (8 ) (5 ) Investment banking income Underwriting income 99 143 592 554 (45 ) (83 ) Syndication fees 375 321 25 19 — — Financial advisory services 269 465 35 17 (1 ) — Total investment banking income 743 929 652 590 (46 ) (83 ) Trading account profits 63 54 2,184 1,743 39 125 Other income 479 534 39 122 (419 ) 545 Total noninterest income $ 2,211 $ 2,498 $ 3,420 $ 3,083 $ (429 ) $ 616 (1) All Other Includes eliminations of intercompany transactions. Noninterest Income by Business Segment and All Other Total Corporation Consumer Banking Global Wealth & Six Months Ended June 30 (Dollars in millions) 2018 2017 2018 2017 2018 2017 Card income Interchange fees $ 2,041 $ 1,941 $ 1,686 $ 1,584 $ 38 $ 50 Other card income 958 977 935 889 21 20 Total card income 2,999 2,918 2,621 2,473 59 70 Service charges Deposit-related fees 3,326 3,349 2,116 2,112 36 38 Lending-related fees 549 546 — — — — Total service charges 3,875 3,895 2,116 2,112 36 38 Investment and brokerage services Asset management fees 5,077 4,488 73 64 5,004 4,424 Brokerage fees 2,045 2,389 89 95 973 1,196 Total investment and brokerage services 7,122 6,877 162 159 5,977 5,620 Investment banking income Underwriting income 1,460 1,488 — — 157 146 Syndication fees 716 740 — — — — Financial advisory services 599 888 — — — 1 Total investment banking income 2,775 3,116 — — 157 147 Trading account profits 5,014 4,287 4 1 56 91 Other income 691 1,940 210 306 143 164 Total noninterest income $ 22,476 $ 23,033 $ 5,113 $ 5,051 $ 6,428 $ 6,130 Global Banking Global Markets All Other (1) Six Months Ended June 30 2018 2017 2018 2017 2018 2017 Card income Interchange fees $ 270 $ 252 $ 47 $ 46 $ — $ 9 Other card income 3 7 — — (1 ) 61 Total card income 273 259 47 46 (1 ) 70 Service charges Deposit-related fees 1,078 1,116 85 73 11 10 Lending-related fees 454 459 95 87 — — Total service charges 1,532 1,575 180 160 11 10 Investment and brokerage services Asset management fees — — — — — — Brokerage fees 44 54 918 1,052 21 (8 ) Total investment and brokerage services 44 54 918 1,052 21 (8 ) Investment banking income Underwriting income 269 299 1,163 1,185 (129 ) (142 ) Syndication fees 673 700 43 40 — — Financial advisory services 545 856 55 30 (1 ) 1 Total investment banking income 1,487 1,855 1,261 1,255 (130 ) (141 ) Trading account profits 124 87 4,887 3,920 (57 ) 188 Other income 1,045 1,021 43 308 (750 ) 141 Total noninterest income $ 4,505 $ 4,851 $ 7,336 $ 6,741 $ (906 ) $ 260 (1) All Other Includes eliminations of intercompany transactions.

Summary of Significant Accoun25

Summary of Significant Accounting Principles (Policies)	6 Months Ended
	Jun. 30, 2018
Accounting Policies [Abstract]
Consolidation	The Consolidated Financial Statements include the accounts of the Corporation and its majority-owned subsidiaries and those variable interest entities (VIEs) where the Corporation is the primary beneficiary. Intercompany accounts and transactions have been eliminated. Results of operations of acquired companies are included from the dates of acquisition and for VIEs, from the dates that the Corporation became the primary beneficiary. Assets held in an agency or fiduciary capacity are not included in the Consolidated Financial Statements. The Corporation accounts for investments in companies for which it owns a voting interest and for which it has the ability to exercise significant influence over operating and financing decisions using the equity method of accounting. These investments are included in other assets. Equity method investments are subject to impairment testing, and the Corporation’s proportionate share of income or loss is included in other income.
Basis of Accounting	The preparation of the Consolidated Financial Statements in conformity with accounting principles generally accepted in the United States of America (GAAP) requires management to make estimates and assumptions that affect reported amounts and disclosures. Realized results could materially differ from those estimates and assumptions. These unaudited Consolidated Financial Statements should be read in conjunction with the audited Consolidated Financial Statements of the Corporation’s 2017 Annual Report on Form 10-K. The nature of the Corporation’s business is such that the results of any interim period are not necessarily indicative of results for a full year. In the opinion of management, all adjustments, which consist of normal recurring adjustments necessary for a fair statement of the interim period results, have been made. The Corporation evaluates subsequent events through the date of filing with the Securities and Exchange Commission (SEC). Certain prior-period amounts have been reclassified to conform to current period presentation.
Accounting Standards	Accounting Standards Adopted on January 1, 2018 Effective January 1, 2018, the Corporation adopted the following new accounting standards on a prospective basis. For additional information, see Note 1 – Summary of Significant Accounting Principles to the Consolidated Financial Statements of the Corporation’s 2017 Annual Report on Form 10-K. ● Revenue Recognition – The new accounting standard addresses the recognition of revenue from contracts with customers. For additional information, see Revenue Recognition Accounting Policies in this Note, Note 2 – Noninterest Income and Note 17 – Business Segment Information . ● Hedge Accounting – The new accounting standard simplifies and expands the ability to apply hedge accounting to certain risk management activities. For additional information, see Note 3 – Derivatives . ● Recognition and Measurement of Financial Assets and Liabilities – The new accounting standard relates to the recognition and measurement of financial instruments, including equity investments. For additional information, see Note 4 – Securities and Note 16 – Fair Value of Financial Instruments. ● Tax Effects in Accumulated Other Comprehensive Income – The new accounting standard addresses certain tax effects stranded in accumulated other comprehensive income (OCI) related to the Tax Act. For additional information, see Note 12 – Accumulated Other Comprehensive Income (Loss) . Effective January 1, 2018, the Corporation adopted the following new accounting standards on a retrospective basis, resulting in restatement of all prior periods presented in the Consolidated Statement of Income and the Consolidated Statement of Cash Flows. The changes in presentation are not material to the individual line items affected. ● Presentation of Pension Costs – The new accounting standard requires separate presentation of the service cost component of pension expense from all other components of net pension benefit/cost in the Consolidated Statement of Income. As a result, the service cost component continues to be presented in personnel expense while other components of net pension benefit/cost (e.g., interest cost, actual return on plan assets, amortization of prior service cost) are now presented in other general operating expense. ● Classification of Cash Flows and Restricted Cash – The new accounting standards address the classification of certain cash receipts and cash payments in the statement of cash flows as well as the presentation and disclosure of restricted cash. For more information on restricted cash, see Note 9 – Federal Funds Sold or Purchased, Securities Financing Agreements, Short-term Borrowings and Restricted Cash . Accounting Standards Issued and Not Yet Adopted Lease Accounting The Financial Accounting Standards Board (FASB) issued a new accounting standard effective on January 1, 2019 that requires substantially all leases to be recorded as assets and liabilities on the balance sheet. On January 5, 2018, the FASB issued an exposure draft proposing an amendment to the standard that, if approved, would permit companies the option to apply the provisions of the new lease standard either prospectively as of the effective date, without adjusting comparative periods presented, or using a modified retrospective transition applicable to all prior periods presented. The Corporation is in the process of reviewing its existing lease portfolios, including certain service contracts for embedded leases, to evaluate the impact of the standard on its consolidated financial statements, as well as the impact to regulatory capital and risk-weighted assets. The effect of the adoption will depend on the lease portfolio at the time of transition and the transition options ultimately available; however, the Corporation does not expect the new accounting standard to have a material impact on its consolidated financial position, results of operations or disclosures in the Notes to the Consolidated Financial Statements. Accounting for Financial Instruments -- Credit Losses The FASB issued a new accounting standard effective on January 1, 2020, with early adoption permitted on January 1, 2019, that will replace the existing measurement of the allowance for credit losses with management’s best estimate of probable credit losses inherent in the Corporation’s lending activities. The new standard will reflect management’s best estimate of all expected credit losses for substantially all of the Corporation’s financial assets that are recognized at amortized cost. The standard also requires expanded credit quality disclosures. The Corporation is in the process of identifying and implementing required changes to credit loss estimation models and processes and evaluating the impact of this new accounting standard, which at the date of adoption is expected to increase the allowance for credit losses with a resulting negative adjustment to retained earnings. The change will be dependent on the characteristics of the Corporation’s portfolio at adoption date as well as the macroeconomic conditions and forecast as of that date. While a final decision has not been made, the Corporation does not expect to early adopt the standard.
Goodwill and Intangible Assets	Goodwill is the purchase premium after adjusting for the fair value of net assets acquired. Goodwill is not amortized but is reviewed for potential impairment on an annual basis, or when events or circumstances indicate a potential impairment, at the reporting unit level. A reporting unit is a business segment or one level below a business segment. The Corporation assesses the fair value of each reporting unit against its carrying value, including goodwill, as measured by allocated equity. For purposes of goodwill impairment testing, the Corporation utilizes allocated equity as a proxy for the carrying value of its reporting units. Allocated equity in the reporting units is comprised of allocated capital plus capital for the portion of goodwill and intangibles specifically assigned to the reporting unit. In performing its goodwill impairment testing, the Corporation first assesses qualitative factors to determine whether it is more likely than not that the fair value of a reporting unit is less than its carrying value. Qualitative factors include, among other things, macroeconomic conditions, industry and market considerations, financial performance of the respective reporting unit and other relevant entity- and reporting-unit specific considerations. If the Corporation concludes it is more likely than not that the fair value of a reporting unit is less than its carrying value, a quantitative assessment is performed. If the fair value of the reporting unit exceeds its carrying value, goodwill of the reporting unit is considered not impaired; however, if the carrying value of the reporting unit exceeds its fair value, an additional step must be performed to measure potential impairment. This step involves calculating an implied fair value of goodwill which is the excess of the fair value of the reporting unit, as determined in the first step, over the aggregate fair values of the assets, liabilities and identifiable intangibles as if the reporting unit was being acquired in a business combination. If the implied fair value of goodwill exceeds the goodwill assigned to the reporting unit, there is no impairment. If the goodwill assigned to a reporting unit exceeds the implied fair value of goodwill, an impairment charge is recorded for the excess. An impairment loss recognized cannot exceed the amount of goodwill assigned to a reporting unit. An impairment loss establishes a new basis in the goodwill, and subsequent reversals of goodwill impairment losses are not permitted under applicable accounting guidance. For intangible assets subject to amortization, an impairment loss is recognized if the carrying value of the intangible asset is not recoverable and exceeds fair value. The carrying value of the intangible asset is considered not recoverable if it exceeds the sum of the undiscounted cash flows expected to result from the use of the asset. Intangible assets deemed to have indefinite useful lives are not subject to amortization. An impairment loss is recognized if the carrying value of the intangible asset with an indefinite life exceeds its fair value.
Revenue Recognition	The following summarizes the Corporation’s revenue recognition accounting policies for certain noninterest income activities. Card Income Card income includes annual, late and over-limit fees as well as fees earned from interchange, cash advances and other miscellaneous transactions and is presented net of direct costs. Interchange fees are recognized upon settlement of the credit and debit card payment transactions and are generally determined on a percentage basis for credit cards and fixed rates for debit cards based on the corresponding payment network’s rates. Substantially all card fees are recognized at the transaction date, except for certain time-based fees such as annual fees, which are recognized over 12 months. Fees charged to cardholders that are estimated to be uncollectible are reserved in the allowance for loan and lease losses. Rewards paid to cardholders are related to points earned by the cardholder that can be redeemed for a broad range of rewards including cash, travel and gift cards. Based on past redemption behavior, card product type, account transaction activity and other historical card performance, the Corporation estimates a liability based on the amount of earned reward points that are expected to be redeemed. The Corporation also makes payments to credit card partners. The payments are based on revenue-sharing agreements that are generally driven by cardholder transactions and partner sales volumes. Service Charges Service charges include deposit and lending-related fees. Deposit-related fees consist of fees earned on consumer and commercial deposit activities and are generally recognized when the transactions occur or as the service is performed. Consumer fees are earned on consumer deposit accounts for account maintenance and various transaction-based services, such as ATM transactions, wire transfer activities, check and money order processing and insufficient funds/overdraft transactions. Commercial deposit-related fees are from the Corporation’s Global Transaction Services business and consist of commercial deposit and treasury management services, including account maintenance and other services, such as payroll, sweep account and other cash management services. Lending-related fees generally represent transactional fees earned from certain loan commitments, financial guarantees and standby letters of credit (SBLCs). Investment and Brokerage Services Investment and brokerage services consist of asset management and brokerage fees. Asset management fees are earned from the management of client assets under advisory agreements or the full discretion of the Corporation’s financial advisors (collectively referred to as assets under management (AUM)). Asset management fees are earned as a percentage of the client’s AUM and generally range from 50 basis points (bps) to 150 bps of the AUM. In cases where a third party is used to obtain a client’s investment allocation, the fee remitted to the third party is recorded net and is not reflected in the transaction price, as the Corporation is an agent for those services. Brokerage fees include income earned from transaction-based services that are performed as part of investment management services and are based on a fixed price per unit or as a percentage of the total transaction amount. Brokerage fees also include distribution fees and sales commissions that are primarily in the Global Wealth & Investment Management ( GWIM ) segment and are earned over time. In addition, primarily in the Global Markets segment, brokerage fees are earned when the Corporation fills customer orders to buy or sell various financial products or when it acknowledges, affirms, settles and clears transactions and/or submits trade information to the appropriate clearing broker. Certain customers pay brokerage, clearing and/or exchange fees imposed by relevant regulatory bodies or exchanges in order to execute or clear trades. These fees are recorded net and are not reflected in the transaction price, as the Corporation is an agent for those services. Investment Banking Income Investment banking income includes underwriting income and financial advisory services income. Underwriting consists of fees earned for the placement of a customer’s debt or equity securities. The revenue is generally earned based on a percentage of the fixed number of shares or principal placed. Once the number of shares or notes is determined and the service is completed, the underwriting fees are recognized. The Corporation incurs certain out-of-pocket expenses, such as legal costs, in performing these services. These expenses are recovered through the revenue the Corporation earns from the customer and are included in operating expenses. Syndication fees represent fees earned as the agent or lead lender responsible for structuring, arranging and administering a loan syndication. Financial advisory services consist of fees earned for assisting customers with transactions related to mergers and acquisitions and financial restructurings. Revenue varies depending on the size and number of services performed for each contract and is generally contingent on successful execution of the transaction. Revenue is typically recognized once the transaction is completed and all services have been rendered. Additionally, the Corporation may earn a fixed fee in merger and acquisition transactions to provide a fairness opinion, with the fees recognized when the opinion is delivered to the customer. Other Revenue Measurement and Recognition Policies The Corporation did not disclose the value of any open performance obligations at June 30, 2018 , as its contracts with customers generally have a fixed term that is less than one year, an open term with a cancellation period that is less than one year, or provisions that allow the Corporation to recognize revenue at the amount it has the right to invoice.

Noninterest Income (Tables)

Noninterest Income (Tables)	6 Months Ended
	Jun. 30, 2018
Revenue from Contract with Customer [Abstract]
Disaggregation of Revenue	The table below presents the Corporation’s noninterest income disaggregated by revenue source for the three and six months ended June 30, 2018 and 2017 . For more information, see Note 1 – Summary of Significant Accounting Principles . For a disaggregation of noninterest income by business segment and All Other , see Note 17 – Business Segment Information . Three Months Ended June 30 Six Months Ended June 30 (Dollars in millions) 2018 2017 2018 2017 Card income Interchange fees (1) $ 1,070 $ 983 $ 2,041 $ 1,941 Other card income 472 486 958 977 Total card income 1,542 1,469 2,999 2,918 Service charges Deposit-related fees 1,680 1,696 3,326 3,349 Lending-related fees 274 281 549 546 Total service charges 1,954 1,977 3,875 3,895 Investment and brokerage services Asset management fees 2,513 2,288 5,077 4,488 Brokerage fees 945 1,172 2,045 2,389 Total investment and brokerage services 3,458 3,460 7,122 6,877 Investment banking income Underwriting income 719 709 1,460 1,488 Syndication fees 400 340 716 740 Financial advisory services 303 483 599 888 Total investment banking income 1,422 1,532 2,775 3,116 Trading account profits 2,315 1,956 5,014 4,287 Other income 268 1,449 691 1,940 Total noninterest income $ 10,959 $ 11,843 $ 22,476 $ 23,033 (1) Gross interchange fees were $ 2.4 billion and $ 2.2 billion for the three months ended June 30, 2018 and 2017 , and are presented net of $ 1.3 billion and $ 1.2 billion of expenses for rewards and partner payments. For the six months ended June 30, 2018 and 2017 , gross interchange fees were $4.6 billion and $4.3 billion and are presented net of $2.6 billion and $2.3 billion of expenses for rewards and partner payments.

Derivatives (Tables)

Derivatives (Tables)	6 Months Ended
	Jun. 30, 2018
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Schedule of Derivative Instruments	The following tables present derivative instruments included on the Consolidated Balance Sheet in derivative assets and liabilities at June 30, 2018 and December 31, 2017 . Balances are presented on a gross basis, prior to the application of counterparty and cash collateral netting. Total derivative assets and liabilities are adjusted on an aggregate basis to take into consideration the effects of legally enforceable master netting agreements and have been reduced by cash collateral received or paid. June 30, 2018 Gross Derivative Assets Gross Derivative Liabilities (Dollars in billions) Contract/ Notional (1) Trading and Other Risk Management Derivatives Qualifying Hedges Total Trading and Other Risk Management Derivatives Qualifying Hedges Total Interest rate contracts Swaps $ 17,626.4 $ 153.3 $ 1.6 $ 154.9 $ 147.2 $ 4.8 $ 152.0 Futures and forwards 6,464.7 1.4 — 1.4 1.4 — 1.4 Written options 1,328.4 — — — 30.5 — 30.5 Purchased options 1,283.1 31.9 — 31.9 — — — Foreign exchange contracts Swaps 1,941.7 47.4 2.5 49.9 48.7 3.5 52.2 Spot, futures and forwards 5,190.9 52.1 1.2 53.3 49.1 0.5 49.6 Written options 353.5 — — — 5.4 — 5.4 Purchased options 352.5 4.9 — 4.9 — — — Equity contracts Swaps 269.6 5.1 — 5.1 5.4 — 5.4 Futures and forwards 98.2 0.9 — 0.9 0.8 — 0.8 Written options 565.4 — — — 24.2 — 24.2 Purchased options 533.8 35.9 — 35.9 — — — Commodity contracts Swaps 51.0 2.5 — 2.5 5.0 — 5.0 Futures and forwards 63.1 3.3 — 3.3 0.5 — 0.5 Written options 32.1 — — — 2.2 — 2.2 Purchased options 31.3 2.1 — 2.1 — — — Credit derivatives (2) Purchased credit derivatives: Credit default swaps 431.6 4.9 — 4.9 8.9 — 8.9 Total return swaps/options 75.3 0.4 — 0.4 1.1 — 1.1 Written credit derivatives: Credit default swaps 407.6 8.5 — 8.5 4.3 — 4.3 Total return swaps/options 75.3 0.7 — 0.7 0.3 — 0.3 Gross derivative assets/liabilities $ 355.3 $ 5.3 $ 360.6 $ 335.0 $ 8.8 $ 343.8 Less: Legally enforceable master netting agreements (282.1 ) — (282.1 ) Less: Cash collateral received/paid (33.3 ) (28.1 ) Total derivative assets/liabilities $ 45.2 $ 33.6 (1) Represents the total contract/notional amount of derivative assets and liabilities outstanding. (2) The net derivative asset and notional amount of written credit derivatives for which the Corporation held purchased credit derivatives with identical underlying referenced names were $3.6 billion and $418.1 billion at June 30, 2018 . December 31, 2017 Gross Derivative Assets Gross Derivative Liabilities (Dollars in billions) Contract/ Notional (1) Trading and Other Risk Management Derivatives Qualifying Hedges Total Trading and Other Risk Management Derivatives Qualifying Hedges Total Interest rate contracts Swaps $ 15,416.4 $ 175.1 $ 2.9 $ 178.0 $ 172.5 $ 1.7 $ 174.2 Futures and forwards 4,332.4 0.5 — 0.5 0.5 — 0.5 Written options 1,170.5 — — — 35.5 — 35.5 Purchased options 1,184.5 37.6 — 37.6 — — — Foreign exchange contracts Swaps 2,011.1 35.6 2.2 37.8 36.1 2.7 38.8 Spot, futures and forwards 3,543.3 39.1 0.7 39.8 39.1 0.8 39.9 Written options 291.8 — — — 5.1 — 5.1 Purchased options 271.9 4.6 — 4.6 — — — Equity contracts Swaps 265.6 4.8 — 4.8 4.4 — 4.4 Futures and forwards 106.9 1.5 — 1.5 0.9 — 0.9 Written options 480.8 — — — 23.9 — 23.9 Purchased options 428.2 24.7 — 24.7 — — — Commodity contracts Swaps 46.1 1.8 — 1.8 4.6 — 4.6 Futures and forwards 47.1 3.5 — 3.5 0.6 — 0.6 Written options 21.7 — — — 1.4 — 1.4 Purchased options 22.9 1.4 — 1.4 — — — Credit derivatives (2) Purchased credit derivatives: Credit default swaps 470.9 4.1 — 4.1 11.1 — 11.1 Total return swaps/options 54.1 0.1 — 0.1 1.3 — 1.3 Written credit derivatives: Credit default swaps 448.2 10.6 — 10.6 3.6 — 3.6 Total return swaps/options 55.2 0.8 — 0.8 0.2 — 0.2 Gross derivative assets/liabilities $ 345.8 $ 5.8 $ 351.6 $ 340.8 $ 5.2 $ 346.0 Less: Legally enforceable master netting agreements (279.2 ) (279.2 ) Less: Cash collateral received/paid (34.6 ) (32.5 ) Total derivative assets/liabilities $ 37.8 $ 34.3 (1) Represents the total contract/notional amount of derivative assets and liabilities outstanding. (2) The net derivative asset and notional amount of written credit derivatives for which the Corporation held purchased credit derivatives with identical underlying referenced names were $6.4 billion and $435.1 billion at December 31, 2017 .
Derivative [Line Items]
Gains and Losses on Derivatives Designated as Fair Value Hedges	The table below summarizes information related to fair value hedges for the three and six months ended June 30, 2018 and 2017 . Gains and Losses on Derivatives Designated as Fair Value Hedges Three Months Ended June 30, 2018 Three Months Ended June 30, 2017 (Dollars in millions) Derivative Hedged Item Derivative Hedged Item Hedge Ineffectiveness Interest rate risk on long-term debt (1) $ (869 ) $ 821 $ 272 $ (422 ) $ (150 ) Interest rate and foreign currency risk on long-term debt (2, 3) (1,067 ) 934 901 (877 ) 24 Interest rate risk on available-for-sale securities (4) (1 ) 1 (80 ) 70 (10 ) Total $ (1,937 ) $ 1,756 $ 1,093 $ (1,229 ) $ (136 ) Six Months Ended June 30, 2018 Six Months Ended June 30, 2017 Derivative Hedged Item Derivative Hedged Item Hedge Ineffectiveness Interest rate risk on long-term debt (1) $ (3,174 ) $ 3,057 $ (478 ) $ 144 $ (334 ) Interest rate and foreign currency risk on long-term debt (2, 3) (745 ) 588 1,024 (1,010 ) 14 Interest rate risk on available-for-sale securities (4) (32 ) 31 (63 ) 33 (30 ) Total $ (3,951 ) $ 3,676 $ 483 $ (833 ) $ (350 ) (1) Amounts are recorded in interest expense in the Consolidated Statement of Income. (2) For the three and six months ended June 30, 2018 , the derivative amount includes losses of $1.0 billion and $576 million in other income and a gain of $25 million and a loss of $39 million in interest expense, respectively. For the same periods in 2017 , the derivative amount includes gains of $1.0 billion and $1.3 billion in other income and losses of $124 million and $281 million in interest expense, respectively. Line item totals are in the Consolidated Statement of Income. (3) For the three and six months ended June 30, 2018 , the derivative amount includes losses of $83 million and $130 million related to certain changes in the fair value of derivatives that were excluded from effectiveness testing and recognized in accumulated OCI. None of the excluded amounts have been reclassified into earnings. (4) Amounts are recorded in interest income in the Consolidated Statement of Income.
Schedule of Derivative Instruments in Statement of Financial Position, Fair Value	The table below summarizes the carrying value of hedged assets and liabilities that are designated and qualifying in fair value hedging relationships along with the cumulative amount of fair value hedging adjustments included in the carrying value that have been recorded in the current hedging relationships. These fair value hedging adjustments are open basis adjustments that are not subject to amortization as long as the hedging relationship remains designated. Designated Fair Value Hedged Assets (Liabilities) June 30, 2018 (Dollars in millions) Carrying Value Cumulative Fair Value Adjustments (1) Long-term debt $ (133,177 ) $ 1,894 Available-for-sale securities (2) 954 (48 ) (1) For assets, increase (decrease) to carrying value and for liabilities, (increase) decrease to carrying value. (2) The amortized cost of available-for-sale securities in fair value hedging relationships was $949 million and is included in debt securities carried at fair value on the Consolidated Balance Sheet.
Cash Flow and Net Investment Hedges	The following table summarizes certain information related to cash flow hedges and net investment hedges for the three and six months ended June 30, 2018 and 2017 . Of the $1.3 billion after-tax net loss ( $1.7 billion pretax) on derivatives in accumulated OCI at June 30, 2018 , $292 million after-tax ( $383 million pretax) is expected to be reclassified into earnings in the next 12 months. These net losses reclassified into earnings are expected to primarily reduce net interest income related to the respective hedged items. For terminated cash flow hedges, the time period over which the majority of the forecasted transactions are hedged is approximately seven years , with a maximum length of time for certain forecasted transactions of 18 years . Gains and Losses on Derivatives Designated as Cash Flow and Net Investment Hedges (Dollars in millions, amounts pretax) Gains (Losses) Gains (Losses) Gains (Losses) Gains (Losses) Three Months Ended June 30, 2018 Six Months Ended June 30, 2018 Cash flow hedges Interest rate risk on variable-rate assets (1) $ (71 ) $ (33 ) $ (499 ) $ (83 ) Price risk on certain restricted stock awards (2) — — 4 27 Total $ (71 ) $ (33 ) $ (495 ) $ (56 ) Net investment hedges Foreign exchange risk (3) $ 923 $ — $ 679 $ (1 ) Three Months Ended June 30, 2017 Six Months Ended June 30, 2017 Cash flow hedges Interest rate risk on variable-rate assets (1) $ 64 $ (108 ) $ 27 $ (220 ) Price risk on certain restricted stock awards (2) 6 29 34 71 Total $ 70 $ (79 ) $ 61 $ (149 ) Net investment hedges Foreign exchange risk (3) $ (464 ) $ 1,928 $ (1,114 ) $ 1,798 (1) Amounts reclassified from accumulated OCI are recorded in interest income in the Consolidated Statement of Income. (2) Amounts reclassified from accumulated OCI are recorded in personnel expense in the Consolidated Statement of Income. (3) Amounts reclassified from accumulated OCI are recorded in other income in the Consolidated Statement of Income. For the three and six months ended June 30, 2018 , amounts excluded from effectiveness testing and recognized in other income were gains of $24 million and $29 million . For the same periods in 2017 , amounts excluded from effectiveness testing and recognized in other income were losses of $33 million and $48 million .
Other Risk Management Derivatives	The table below presents gains (losses) on these derivatives for the three and six months ended June 30, 2018 and 2017 . These gains (losses) are largely offset by the income or expense that is recorded on the hedged item. Gains and Losses On Other Risk Management Derivatives Three Months Ended June 30 Six Months Ended June 30 (Dollars in millions) 2018 2017 2018 2017 Interest rate risk on mortgage activities (1) $ (26 ) $ 55 $ (161 ) $ 31 Credit risk on loans (2) (2 ) (1 ) (5 ) (3 ) Interest rate and foreign currency risk on ALM activities (3) 702 238 563 (52 ) (1) Primarily related to hedges of interest rate risk on mortgage servicing rights (MSRs) and interest rate lock commitments (IRLCs) to originate mortgage loans that will be held for sale. The net gains on IRLCs, which are not included in the table but are considered derivative instruments, were $14 million and $28 million for the three and six months ended June 30, 2018 compared to $60 million and $116 million for the same periods in 2017 . (2) Primarily related to derivatives that are economic hedges of credit risk on loans. (3) Primarily related to hedges of debt securities carried at fair value and hedges of foreign currency-denominated debt.
Schedule of Derivative Instruments Included in Trading Activities	The table below, which includes both derivatives and non-derivative cash instruments, identifies the amounts in the respective income statement line items attributable to the Corporation’s sales and trading revenue in Global Markets , categorized by primary risk, for the three and six months ended June 30, 2018 and 2017 . The difference between total trading account profits in the following table and in the Consolidated Statement of Income represents trading activities in business segments other than Global Markets . This table includes debit valuation adjustment (DVA) and funding valuation adjustment (FVA) gains (losses). Global Markets results in Note 17 – Business Segment Information are presented on a fully taxable-equivalent (FTE) basis. The table below is not presented on an FTE basis. Sales and Trading Revenue Trading Account Profits Net Interest Income Other (1) Total Trading Account Profits Net Interest Income Other (1) Total (Dollars in millions) Three Months Ended June 30, 2018 Six Months Ended June 30, 2018 Interest rate risk $ 348 $ 314 $ (1 ) $ 661 $ 888 $ 639 $ 67 $ 1,594 Foreign exchange risk 392 (8 ) 1 385 796 (13 ) 3 786 Equity risk 1,097 (202 ) 398 1,293 2,249 (327 ) 848 2,770 Credit risk 284 487 136 907 828 959 271 2,058 Other risk 63 4 24 91 126 13 39 178 Total sales and trading revenue $ 2,184 $ 595 $ 558 $ 3,337 $ 4,887 $ 1,271 $ 1,228 $ 7,386 Three Months Ended June 30, 2017 Six Months Ended June 30, 2017 Interest rate risk $ 219 $ 375 $ 75 $ 669 $ 502 $ 817 $ 152 $ 1,471 Foreign exchange risk 347 (1 ) 3 349 715 (4 ) 3 714 Equity risk 775 (155 ) 476 1,096 1,447 (230 ) 962 2,179 Credit risk 371 473 148 992 1,121 984 346 2,451 Other risk 31 5 17 53 135 10 49 194 Total sales and trading revenue $ 1,743 $ 697 $ 719 $ 3,159 $ 3,920 $ 1,577 $ 1,512 $ 7,009 (1) Represents amounts in investment and brokerage services and other income that are recorded in Global Markets and included in the definition of sales and trading revenue. Includes investment and brokerage services revenue of $420 million and $897 million for the three and six months ended June 30, 2018 compared to $514 million and $1.0 billion for the same periods in 2017 .
Disclosure of Credit Derivatives	Credit derivative instruments where the Corporation is the seller of credit protection and their expiration at June 30, 2018 and December 31, 2017 are summarized in the table below. Credit Derivative Instruments Less than One Year One to Three Years Three to Five Years Over Five Years Total June 30, 2018 (Dollars in millions) Carrying Value Credit default swaps: Investment grade $ 1 $ 42 $ 427 $ 462 $ 932 Non-investment grade 52 438 981 1,919 3,390 Total 53 480 1,408 2,381 4,322 Total return swaps/options: Investment grade 71 — — — 71 Non-investment grade 238 28 — — 266 Total 309 28 — — 337 Total credit derivatives $ 362 $ 508 $ 1,408 $ 2,381 $ 4,659 Credit-related notes: Investment grade $ — $ — $ 2 $ 435 $ 437 Non-investment grade 3 — 7 1,703 1,713 Total credit-related notes $ 3 $ — $ 9 $ 2,138 $ 2,150 Maximum Payout/Notional Credit default swaps: Investment grade $ 20,037 $ 115,539 $ 123,451 $ 22,070 $ 281,097 Non-investment grade 23,801 41,746 45,687 15,266 126,500 Total 43,838 157,285 169,138 37,336 407,597 Total return swaps/options: Investment grade 55,557 1,672 — 136 57,365 Non-investment grade 17,450 379 39 76 17,944 Total 73,007 2,051 39 212 75,309 Total credit derivatives $ 116,845 $ 159,336 $ 169,177 $ 37,548 $ 482,906 December 31, 2017 Carrying Value Credit default swaps: Investment grade $ 4 $ 3 $ 61 $ 245 $ 313 Non-investment grade 203 453 484 2,133 3,273 Total 207 456 545 2,378 3,586 Total return swaps/options: Investment grade 30 — — — 30 Non-investment grade 150 — — 3 153 Total 180 — — 3 183 Total credit derivatives $ 387 $ 456 $ 545 $ 2,381 $ 3,769 Credit-related notes: Investment grade $ — $ — $ 7 $ 689 $ 696 Non-investment grade 12 4 34 1,548 1,598 Total credit-related notes $ 12 $ 4 $ 41 $ 2,237 $ 2,294 Maximum Payout/Notional Credit default swaps: Investment grade $ 61,388 $ 115,480 $ 107,081 $ 21,579 $ 305,528 Non-investment grade 39,312 49,843 39,098 14,420 142,673 Total 100,700 165,323 146,179 35,999 448,201 Total return swaps/options: Investment grade 37,394 2,581 — 143 40,118 Non-investment grade 13,751 514 143 697 15,105 Total 51,145 3,095 143 840 55,223 Total credit derivatives $ 151,845 $ 168,418 $ 146,322 $ 36,839 $ 503,424
Additional Collateral Required to be Posted Upon Downgrade	The table below presents the amount of additional collateral that would have been contractually required by derivative contracts and other trading agreements at June 30, 2018 if the rating agencies had downgraded their long-term senior debt ratings for the Corporation or certain subsidiaries by one incremental notch and by an additional second incremental notch. Additional Collateral Required to be Posted Upon Downgrade at June 30, 2018 (Dollars in millions) One incremental notch Second incremental notch Bank of America Corporation $ 643 $ 289 Bank of America, N.A. and subsidiaries (1) 322 247 (1) Included in Bank of America Corporation collateral requirements in this table.
Derivative Liability Subject to Unilateral Termination Upon Downgrade	The table below presents the derivative liabilities that would be subject to unilateral termination by counterparties and the amounts of collateral that would have been contractually required at June 30, 2018 if the long-term senior debt ratings for the Corporation or certain subsidiaries had been lower by one incremental notch and by an additional second incremental notch. Derivative Liabilities Subject to Unilateral Termination Upon Downgrade at June 30, 2018 (Dollars in millions) One incremental notch Second incremental notch Derivative liabilities $ 184 $ 614 Collateral posted 115 479
Valuation Adjustments on Derivatives	The table below presents credit valuation adjustment (CVA), DVA and FVA gains (losses) on derivatives, which are recorded in trading account profits, on a gross and net of hedge basis for the three and six months ended June 30, 2018 and 2017 . For more information on the valuation adjustments on derivatives, see Note 2 – Derivatives to the Consolidated Financial Statements of the Corporation’s 2017 Annual Report on Form 10-K . Valuation Adjustments on Derivatives (1) Gains (Losses) Three Months Ended June 30 2018 2017 (Dollars in millions) Gross Net Gross Net Derivative assets (CVA) $ 139 $ 127 $ 97 $ 52 Derivative assets/liabilities (FVA) 28 (18 ) 27 41 Derivative liabilities (DVA) (159 ) (159 ) (128 ) (125 ) Six Months Ended June 30 2018 2017 Derivative assets (CVA) $ 115 $ 145 $ 258 $ 78 Derivative assets/liabilities (FVA) (9 ) (19 ) 76 97 Derivative liabilities (DVA) (43 ) (53 ) (278 ) (218 ) (1) At June 30, 2018 and December 31, 2017 , cumulative CVA reduced the derivative assets balance by $562 million and $677 million , cumulative FVA reduced the net derivatives balance by $145 million and $136 million , and cumulative DVA reduced the derivative liabilities balance by $407 million and $450 million , respectively.
Derivative
Derivative [Line Items]
Offsetting Assets	The following table presents derivative instruments included in derivative assets and liabilities on the Consolidated Balance Sheet at June 30, 2018 and December 31, 2017 by primary risk (e.g., interest rate risk) and the platform, where applicable, on which these derivatives are transacted. Balances are presented on a gross basis, prior to the application of counterparty and cash collateral netting. Total gross derivative assets and liabilities are adjusted on an aggregate basis to take into consideration the effects of legally enforceable master netting agreements which include reducing the balance for counterparty netting and cash collateral received or paid. For more information on offsetting of securities financing agreements, see Note 9 – Federal Funds Sold or Purchased, Securities Financing Agreements, Short-term Borrowings and Restricted Cash . Offsetting of Derivatives (1) Derivative Assets Derivative Liabilities Derivative Assets Derivative Liabilities (Dollars in billions) June 30, 2018 December 31, 2017 Interest rate contracts Over-the-counter $ 182.0 $ 177.6 $ 211.7 $ 206.0 Over-the-counter cleared 3.2 2.7 1.9 1.8 Foreign exchange contracts Over-the-counter 104.6 104.0 78.7 80.8 Over-the-counter cleared 1.1 0.9 0.9 0.7 Equity contracts Over-the-counter 27.0 16.2 18.3 16.2 Exchange-traded 11.0 10.3 9.1 8.5 Commodity contracts Over-the-counter 3.6 5.0 2.9 4.4 Exchange-traded 1.1 1.2 0.7 0.8 Credit derivatives Over-the-counter 8.1 8.5 9.1 9.6 Over-the-counter cleared 5.9 5.8 6.1 6.0 Total gross derivative assets/liabilities, before netting Over-the-counter 325.3 311.3 320.7 317.0 Exchange-traded 12.1 11.5 9.8 9.3 Over-the-counter cleared 10.2 9.4 8.9 8.5 Less: Legally enforceable master netting agreements and cash collateral received/paid Over-the-counter (295.8 ) (290.4 ) (296.9 ) (294.6 ) Exchange-traded (10.5 ) (10.5 ) (8.6 ) (8.6 ) Over-the-counter cleared (9.1 ) (9.3 ) (8.3 ) (8.5 ) Derivative assets/liabilities, after netting 32.2 22.0 25.6 23.1 Other gross derivative assets/liabilities (2) 13.0 11.6 12.2 11.2 Total derivative assets/liabilities 45.2 33.6 37.8 34.3 Less: Financial instruments collateral (3) (19.2 ) (9.2 ) (11.2 ) (10.4 ) Total net derivative assets/liabilities $ 26.0 $ 24.4 $ 26.6 $ 23.9 (1) Over-the-counter (OTC) derivatives include bilateral transactions between the Corporation and a particular counterparty. OTC-cleared derivatives include bilateral transactions between the Corporation and a counterparty where the transaction is cleared through a clearinghouse, and exchange-traded derivatives include listed options transacted on an exchange. (2) Consists of derivatives entered into under master netting agreements where the enforceability of these agreements is uncertain under bankruptcy laws in some countries or industries. (3) Amounts are limited to the derivative asset/liability balance and, accordingly, do not include excess collateral received/pledged. Financial instruments collateral includes securities collateral received or pledged and cash securities held and posted at third-party custodians that are not offset on the Consolidated Balance Sheet but shown as a reduction to derive net derivative assets and liabilities.
Offsetting Liabilities	The following table presents derivative instruments included in derivative assets and liabilities on the Consolidated Balance Sheet at June 30, 2018 and December 31, 2017 by primary risk (e.g., interest rate risk) and the platform, where applicable, on which these derivatives are transacted. Balances are presented on a gross basis, prior to the application of counterparty and cash collateral netting. Total gross derivative assets and liabilities are adjusted on an aggregate basis to take into consideration the effects of legally enforceable master netting agreements which include reducing the balance for counterparty netting and cash collateral received or paid. For more information on offsetting of securities financing agreements, see Note 9 – Federal Funds Sold or Purchased, Securities Financing Agreements, Short-term Borrowings and Restricted Cash . Offsetting of Derivatives (1) Derivative Assets Derivative Liabilities Derivative Assets Derivative Liabilities (Dollars in billions) June 30, 2018 December 31, 2017 Interest rate contracts Over-the-counter $ 182.0 $ 177.6 $ 211.7 $ 206.0 Over-the-counter cleared 3.2 2.7 1.9 1.8 Foreign exchange contracts Over-the-counter 104.6 104.0 78.7 80.8 Over-the-counter cleared 1.1 0.9 0.9 0.7 Equity contracts Over-the-counter 27.0 16.2 18.3 16.2 Exchange-traded 11.0 10.3 9.1 8.5 Commodity contracts Over-the-counter 3.6 5.0 2.9 4.4 Exchange-traded 1.1 1.2 0.7 0.8 Credit derivatives Over-the-counter 8.1 8.5 9.1 9.6 Over-the-counter cleared 5.9 5.8 6.1 6.0 Total gross derivative assets/liabilities, before netting Over-the-counter 325.3 311.3 320.7 317.0 Exchange-traded 12.1 11.5 9.8 9.3 Over-the-counter cleared 10.2 9.4 8.9 8.5 Less: Legally enforceable master netting agreements and cash collateral received/paid Over-the-counter (295.8 ) (290.4 ) (296.9 ) (294.6 ) Exchange-traded (10.5 ) (10.5 ) (8.6 ) (8.6 ) Over-the-counter cleared (9.1 ) (9.3 ) (8.3 ) (8.5 ) Derivative assets/liabilities, after netting 32.2 22.0 25.6 23.1 Other gross derivative assets/liabilities (2) 13.0 11.6 12.2 11.2 Total derivative assets/liabilities 45.2 33.6 37.8 34.3 Less: Financial instruments collateral (3) (19.2 ) (9.2 ) (11.2 ) (10.4 ) Total net derivative assets/liabilities $ 26.0 $ 24.4 $ 26.6 $ 23.9 (1) Over-the-counter (OTC) derivatives include bilateral transactions between the Corporation and a particular counterparty. OTC-cleared derivatives include bilateral transactions between the Corporation and a counterparty where the transaction is cleared through a clearinghouse, and exchange-traded derivatives include listed options transacted on an exchange. (2) Consists of derivatives entered into under master netting agreements where the enforceability of these agreements is uncertain under bankruptcy laws in some countries or industries. (3) Amounts are limited to the derivative asset/liability balance and, accordingly, do not include excess collateral received/pledged. Financial instruments collateral includes securities collateral received or pledged and cash securities held and posted at third-party custodians that are not offset on the Consolidated Balance Sheet but shown as a reduction to derive net derivative assets and liabilities.

Securities (Tables)

Securities (Tables)	6 Months Ended
	Jun. 30, 2018
Investments, Debt and Equity Securities [Abstract]
Marketable Securities	The table below presents the amortized cost, gross unrealized gains and losses, and fair value of AFS debt securities, other debt securities carried at fair value and held-to-maturity (HTM) debt securities at June 30, 2018 and December 31, 2017 . Debt Securities Amortized Cost Gross Gains Gross Losses Fair Value (Dollars in millions) June 30, 2018 Available-for-sale debt securities Mortgage-backed securities: Agency $ 162,301 $ 125 $ (5,426 ) $ 157,000 Agency-collateralized mortgage obligations 6,194 13 (172 ) 6,035 Commercial 14,156 2 (558 ) 13,600 Non-agency residential (1) 2,283 262 (11 ) 2,534 Total mortgage-backed securities 184,934 402 (6,167 ) 179,169 U.S. Treasury and agency securities 54,758 12 (2,036 ) 52,734 Non-U.S. securities 6,659 7 (1 ) 6,665 Other taxable securities, substantially all asset-backed securities 4,412 81 (7 ) 4,486 Total taxable securities 250,763 502 (8,211 ) 243,054 Tax-exempt securities 19,085 82 (102 ) 19,065 Total available-for-sale debt securities 269,848 584 (8,313 ) 262,119 Other debt securities carried at fair value 12,853 306 (22 ) 13,137 Total debt securities carried at fair value 282,701 890 (8,335 ) 275,256 Held-to-maturity debt securities, substantially all U.S. agency mortgage-backed securities (2) 163,013 131 (4,913 ) 158,231 Total debt securities (3, 4) $ 445,714 $ 1,021 $ (13,248 ) $ 433,487 December 31, 2017 Available-for-sale debt securities Mortgage-backed securities: Agency $ 194,119 $ 506 $ (1,696 ) $ 192,929 Agency-collateralized mortgage obligations 6,846 39 (81 ) 6,804 Commercial 13,864 28 (208 ) 13,684 Non-agency residential (1) 2,410 267 (8 ) 2,669 Total mortgage-backed securities 217,239 840 (1,993 ) 216,086 U.S. Treasury and agency securities 54,523 18 (1,018 ) 53,523 Non-U.S. securities 6,669 9 (1 ) 6,677 Other taxable securities, substantially all asset-backed securities 5,699 73 (2 ) 5,770 Total taxable securities 284,130 940 (3,014 ) 282,056 Tax-exempt securities 20,541 138 (104 ) 20,575 Total available-for-sale debt securities 304,671 1,078 (3,118 ) 302,631 Other debt securities carried at fair value 12,273 252 (39 ) 12,486 Total debt securities carried at fair value 316,944 1,330 (3,157 ) 315,117 Held-to-maturity debt securities, substantially all U.S. agency mortgage-backed securities 125,013 111 (1,825 ) 123,299 Total debt securities (3, 4) $ 441,957 $ 1,441 $ (4,982 ) $ 438,416 Available-for-sale marketable equity securities (5) $ 27 $ — $ (2 ) $ 25 (1) At both June 30, 2018 and December 31, 2017 , the underlying collateral type included approximately 62 percent prime, 13 percent Alt-A and 25 percent subprime. (2) During the three months ended June 30, 2018, the Corporation transferred $25 billion of available-for-sale debt securities to held to maturity. (3) Includes securities pledged as collateral of $42.4 billion and $35.8 billion at June 30, 2018 and December 31, 2017 . (4) The Corporation had debt securities from Fannie Mae (FNMA) and Freddie Mac (FHLMC) that each exceeded 10 percent of shareholders’ equity, with an amortized cost of $165.6 billion and $52.8 billion , and a fair value of $160.6 billion and $51.2 billion at June 30, 2018 , and an amortized cost of $163.6 billion and $50.3 billion , and a fair value of $162.1 billion and $50.0 billion at December 31, 2017 . (5) Classified in other assets on the Consolidated Balance Sheet.
Schedule of Other Debt Securities Carried at Fair Value	The following table presents the components of other debt securities carried at fair value where the changes in fair value are reported in other income. In the three and six months ended June 30, 2018 , the Corporation recorded unrealized mark-to-market net gains of $28 million and $69 million , and realized net gains of $15 million and $9 million , compared to unrealized mark-to-market net gains of $83 million and $ 199 million and realized net losses of $14 million and $118 million for the same periods in 2017 . These amounts exclude hedge results. Other Debt Securities Carried at Fair Value (Dollars in millions) June 30 December 31 Mortgage-backed securities: Agency-collateralized mortgage obligations $ — $ 5 Non-agency residential 2,535 2,764 Total mortgage-backed securities 2,535 2,769 Non-U.S. securities (1) 10,400 9,488 Other taxable securities, substantially all asset-backed securities 202 229 Total $ 13,137 $ 12,486 (1) These securities are primarily used to satisfy certain international regulatory liquidity requirements.
Components of Realized Gains and Losses on Sales of Debt Securities	The gross realized gains and losses on sales of AFS debt securities for the three and six months ended June 30, 2018 and 2017 are presented in the table below. Gains and Losses on Sales of AFS Debt Securities Three Months Ended June 30 Six Months Ended June 30 (Dollars in millions) 2018 2017 2018 2017 Gross gains $ 1 $ 102 $ 3 $ 156 Gross losses — (1 ) — (3 ) Net gains on sales of AFS debt securities $ 1 $ 101 $ 3 $ 153 Income tax expense attributable to realized net gains on sales of AFS debt securities $ 1 $ 38 $ 1 $ 58
Amortized Cost and Fair Value of Corporations Investment	The table below presents the fair value and the associated gross unrealized losses on AFS debt securities and whether these securities have had gross unrealized losses for less than 12 months or for 12 months or longer at June 30, 2018 and December 31, 2017 . Temporarily Impaired and Other-than-temporarily Impaired AFS Debt Securities Less than Twelve Months Twelve Months or Longer Total Fair Value Gross Unrealized Losses Fair Value Gross Unrealized Losses Fair Value Gross Unrealized Losses (Dollars in millions) June 30, 2018 Temporarily impaired AFS debt securities Mortgage-backed securities: Agency $ 93,123 $ (2,718 ) $ 59,404 $ (2,708 ) $ 152,527 $ (5,426 ) Agency-collateralized mortgage obligations 3,706 (93 ) 1,698 (79 ) 5,404 (172 ) Commercial 8,325 (250 ) 4,486 (308 ) 12,811 (558 ) Non-agency residential 154 (6 ) — — 154 (6 ) Total mortgage-backed securities 105,308 (3,067 ) 65,588 (3,095 ) 170,896 (6,162 ) U.S. Treasury and agency securities 27,277 (918 ) 23,856 (1,118 ) 51,133 (2,036 ) Non-U.S. securities — — 86 (1 ) 86 (1 ) Other taxable securities, substantially all asset-backed securities 152 (4 ) 113 (3 ) 265 (7 ) Total taxable securities 132,737 (3,989 ) 89,643 (4,217 ) 222,380 (8,206 ) Tax-exempt securities 303 (2 ) 3,990 (100 ) 4,293 (102 ) Total temporarily impaired AFS debt securities 133,040 (3,991 ) 93,633 (4,317 ) 226,673 (8,308 ) Other-than-temporarily impaired AFS debt securities (1) Non-agency residential mortgage-backed securities 150 (5 ) — — 150 (5 ) Total temporarily impaired and other-than-temporarily impaired AFS debt securities $ 133,190 $ (3,996 ) $ 93,633 $ (4,317 ) $ 226,823 $ (8,313 ) December 31, 2017 Temporarily impaired AFS debt securities Mortgage-backed securities: Agency $ 73,535 $ (352 ) $ 72,612 $ (1,344 ) $ 146,147 $ (1,696 ) Agency-collateralized mortgage obligations 2,743 (29 ) 1,684 (52 ) 4,427 (81 ) Commercial 5,575 (50 ) 4,586 (158 ) 10,161 (208 ) Non-agency residential 335 (7 ) — — 335 (7 ) Total mortgage-backed securities 82,188 (438 ) 78,882 (1,554 ) 161,070 (1,992 ) U.S. Treasury and agency securities 27,537 (251 ) 24,035 (767 ) 51,572 (1,018 ) Non-U.S. securities 772 (1 ) — — 772 (1 ) Other taxable securities, substantially all asset-backed securities — — 92 (2 ) 92 (2 ) Total taxable securities 110,497 (690 ) 103,009 (2,323 ) 213,506 (3,013 ) Tax-exempt securities 1,090 (2 ) 7,100 (102 ) 8,190 (104 ) Total temporarily impaired AFS debt securities 111,587 (692 ) 110,109 (2,425 ) 221,696 (3,117 ) Other-than-temporarily impaired AFS debt securities (1) Non-agency residential mortgage-backed securities 58 (1 ) — — 58 (1 ) Total temporarily impaired and other-than-temporarily impaired AFS debt securities $ 111,645 $ (693 ) $ 110,109 $ (2,425 ) $ 221,754 $ (3,118 ) (1) Includes other-than-temporarily impaired (OTTI) AFS debt securities on which an OTTI loss, primarily related to changes in interest rates, remains in accumulated OCI.
Significant Assumptions Used in the Valuation of Non-Agency Residential MBS	Significant assumptions used in estimating the expected cash flows for measuring credit losses on non-agency residential mortgage-backed securities (RMBS) were as follows at June 30, 2018 . Significant Assumptions Range (1) Weighted 10th Percentile (2) 90th Percentile (2) Prepayment speed 13.0 % 3.2 % 21.4 % Loss severity 19.9 9.0 36.9 Life default rate 17.9 1.5 67.1 (1) Represents the range of inputs/assumptions based upon the underlying collateral. (2) The value of a variable below which the indicated percentile of observations will fall.
Expected Maturity Distribution	The remaining contractual maturity distribution and yields of the Corporation’s debt securities carried at fair value and HTM debt securities at June 30, 2018 are summarized in the table below. Actual duration and yields may differ as prepayments on the loans underlying the mortgages or other asset-backed securities (ABS) are passed through to the Corporation. Maturities of Debt Securities Carried at Fair Value and Held-to-maturity Debt Securities Due in One Year or Less Due after One Year through Five Years Due after Five Years through Ten Years Due after Ten Years Total Amount Yield (1) Amount Yield (1) Amount Yield (1) Amount Yield (1) Amount Yield (1) (Dollars in millions) June 30, 2018 Amortized cost of debt securities carried at fair value Mortgage-backed securities: Agency $ 2 3.50 % $ 26 3.98 % $ 492 2.61 % $ 161,781 3.26 % $ 162,301 3.26 % Agency-collateralized mortgage obligations — — — — 31 2.55 6,163 3.17 6,194 3.17 Commercial 54 9.55 2,155 2.22 11,052 2.48 895 2.81 14,156 2.49 Non-agency residential — — — — 21 0.01 4,543 9.82 4,564 9.77 Total mortgage-backed securities 56 9.33 2,181 2.24 11,596 2.48 173,382 3.43 187,215 3.36 U.S. Treasury and agency securities 542 0.45 32,638 1.47 21,549 2.24 29 2.70 54,758 1.76 Non-U.S. securities 15,118 0.79 1,787 1.53 2 3.56 140 6.55 17,047 0.91 Other taxable securities, substantially all asset-backed securities 576 3.39 2,886 3.34 874 3.24 260 8.56 4,596 3.62 Total taxable securities 16,292 0.90 39,492 1.65 34,021 2.35 173,811 3.44 263,616 2.87 Tax-exempt securities 894 1.71 8,332 2.27 7,252 2.22 2,607 2.64 19,085 2.28 Total amortized cost of debt securities carried at fair value $ 17,186 0.94 $ 47,824 1.76 $ 41,273 2.32 $ 176,418 3.42 $ 282,701 2.83 Amortized cost of HTM debt securities (2) $ 4 3.36 $ 63 3.56 $ 1,427 2.78 $ 161,519 3.15 $ 163,013 3.15 Debt securities carried at fair value Mortgage-backed securities: Agency $ 2 $ 26 $ 484 $ 156,488 $ 157,000 Agency-collateralized mortgage obligations — — 30 6,005 6,035 Commercial 54 2,108 10,592 846 13,600 Non-agency residential — — 33 5,036 5,069 Total mortgage-backed securities 56 2,134 11,139 168,375 181,704 U.S. Treasury and agency securities 542 31,381 20,783 28 52,734 Non-U.S. securities 15,121 1,798 2 144 17,065 Other taxable securities, substantially all asset-backed securities 571 2,905 916 296 4,688 Total taxable securities 16,290 38,218 32,840 168,843 256,191 Tax-exempt securities 894 8,347 7,230 2,594 19,065 Total debt securities carried at fair value $ 17,184 $ 46,565 $ 40,070 $ 171,437 $ 275,256 Fair value of HTM debt securities (2) $ 4 $ 63 $ 1,363 $ 156,801 $ 158,231 (1) The average yield is computed based on a constant effective interest rate over the contractual life of each security. The average yield considers the contractual coupon and the amortization of premiums and accretion of discounts, excluding the effect of related hedging derivatives. (2) Substantially all U.S. agency MBS.

Outstanding Loans and Leases (T

Outstanding Loans and Leases (Tables)	6 Months Ended
	Jun. 30, 2018
Receivables [Abstract]
Schedule of Loans and Leases Outstanding	The following tables present total outstanding loans and leases and an aging analysis for the Consumer Real Estate, Credit Card and Other Consumer, and Commercial portfolio segments, by class of financing receivables, at June 30, 2018 and December 31, 2017 . 30-59 Days Past Due (1) 60-89 Days Past Due (1) 90 Days or Past Due (2) Total Past or More Total Current or Less Than 30 Days Past Due (3) Purchased (4) Loans Accounted for Under the Fair Value Option Total Outstandings (Dollars in millions) June 30, 2018 Consumer real estate Core portfolio Residential mortgage $ 1,064 $ 259 $ 886 $ 2,209 $ 182,453 $ 184,662 Home equity 205 102 457 764 40,761 41,525 Non-core portfolio Residential mortgage (5) 840 361 2,672 3,873 11,822 $ 7,207 22,902 Home equity 186 96 488 770 8,914 2,378 12,062 Credit card and other consumer U.S. credit card 501 329 865 1,695 93,095 94,790 Direct/Indirect consumer (6) 282 77 37 396 92,225 92,621 Other consumer (7) — — — — 167 167 Total consumer 3,078 1,224 5,405 9,707 429,437 9,585 448,729 Consumer loans accounted for under the fair value option (8) $ 848 848 Total consumer loans and leases 3,078 1,224 5,405 9,707 429,437 9,585 848 449,577 Commercial U.S. commercial 441 213 685 1,339 288,402 289,741 Non-U.S. commercial 43 389 — 432 94,018 94,450 Commercial real estate (9) 59 — 76 135 60,938 61,073 Commercial lease financing 46 59 30 135 21,264 21,399 U.S. small business commercial 61 40 84 185 14,020 14,205 Total commercial 650 701 875 2,226 478,642 480,868 Commercial loans accounted for under the fair value option (8) 5,379 5,379 Total commercial loans and leases 650 701 875 2,226 478,642 5,379 486,247 Total loans and leases (10) $ 3,728 $ 1,925 $ 6,280 $ 11,933 $ 908,079 $ 9,585 $ 6,227 $ 935,824 Percentage of outstandings 0.40 % 0.21 % 0.67 % 1.28 % 97.03 % 1.02 % 0.67 % 100.00 % (1) Consumer real estate loans 30-59 days past due includes fully-insured loans of $665 million and nonperforming loans of $242 million . Consumer real estate loans 60-89 days past due includes fully-insured loans of $307 million and nonperforming loans of $195 million . (2) Consumer real estate includes fully-insured loans of $2.5 billion . (3) Consumer real estate includes $2.1 billion and direct/indirect consumer includes $44 million of nonperforming loans. (4) Purchased credit-impaired (PCI) loan amounts are shown gross of the valuation allowance. (5) Total outstandings includes pay option loans of $1.2 billion . The Corporation no longer originates this product. (6) Total outstandings includes auto and specialty lending loans and leases of $50.2 billion , unsecured consumer lending loans of $410 million , U.S. securities-based lending loans of $38.4 billion , non-U.S. consumer loans of $2.8 billion and other consumer loans of $769 million . (7) Substantially all of other consumer is consumer overdrafts. (8) Consumer loans accounted for under the fair value option includes residential mortgage loans of $489 million and home equity loans of $359 million . Commercial loans accounted for under the fair value option includes U.S. commercial loans of $3.5 billion and non-U.S. commercial loans of $1.9 billion . For more information, see Note 14 – Fair Value Measurements and Note 15 – Fair Value Option . (9) Total outstandings includes U.S. commercial real estate loans of $57.1 billion and non-U.S. commercial real estate loans of $4.0 billion . (10) Total outstandings Includes loans and leases pledged as collateral of $55.0 billion . The Corporation also pledged $150.1 billion of loans with no related outstanding borrowings to secure potential borrowing capacity with the Federal Reserve Bank and Federal Home Loan Bank (FHLB). 30-59 Days (1) 60-89 Days Past Due (1) 90 Days or (2) Total Past Total Current or Less Than 30 Days Past Due (3) Purchased (4) Loans Accounted for Under the Fair Value Option Total Outstandings (Dollars in millions) December 31, 2017 Consumer real estate Core portfolio Residential mortgage $ 1,242 $ 321 $ 1,040 $ 2,603 $ 174,015 $ 176,618 Home equity 215 108 473 796 43,449 44,245 Non-core portfolio Residential mortgage (5) 1,028 468 3,535 5,031 14,161 $ 8,001 27,193 Home equity 224 121 572 917 9,866 2,716 13,499 Credit card and other consumer U.S. credit card 542 405 900 1,847 94,438 96,285 Direct/Indirect consumer (6) 330 104 44 478 95,864 96,342 Other consumer (7) — — — — 166 166 Total consumer 3,581 1,527 6,564 11,672 431,959 10,717 454,348 Consumer loans accounted for under the fair value option (8) $ 928 928 Total consumer loans and leases 3,581 1,527 6,564 11,672 431,959 10,717 928 455,276 Commercial U.S. commercial 547 244 425 1,216 283,620 284,836 Non-U.S. commercial 52 1 3 56 97,736 97,792 Commercial real estate (9) 48 10 29 87 58,211 58,298 Commercial lease financing 110 68 26 204 21,912 22,116 U.S. small business commercial 95 45 88 228 13,421 13,649 Total commercial 852 368 571 1,791 474,900 476,691 Commercial loans accounted for under the fair value option (8) 4,782 4,782 Total commercial loans and leases 852 368 571 1,791 474,900 4,782 481,473 Total loans and leases (10) $ 4,433 $ 1,895 $ 7,135 $ 13,463 $ 906,859 $ 10,717 $ 5,710 $ 936,749 Percentage of outstandings 0.48 % 0.20 % 0.76 % 1.44 % 96.81 % 1.14 % 0.61 % 100.00 % (1) Consumer real estate loans 30-59 days past due includes fully-insured loans of $850 million and nonperforming loans of $253 million . Consumer real estate loans 60-89 days past due includes fully-insured loans of $386 million and nonperforming loans of $195 million . (2) Consumer real estate includes fully-insured loans of $3.2 billion . (3) Consumer real estate includes $2.3 billion and direct/indirect consumer includes $43 million of nonperforming loans. (4) PCI loan amounts are shown gross of the valuation allowance. (5) Total outstandings includes pay option loans of $1.4 billion . The Corporation no longer originates this product. (6) Total outstandings includes auto and specialty lending loans and leases of $52.4 billion , unsecured consumer lending loans of $469 million , U.S. securities-based lending loans of $39.8 billion , non-U.S. consumer loans of $3.0 billion and other consumer loans of $684 million . (7) Substantially all of other consumer is consumer overdrafts. (8) Consumer loans accounted for under the fair value option includes residential mortgage loans of $567 million and home equity loans of $361 million . Commercial loans accounted for under the fair value option includes U.S. commercial loans of $2.6 billion and non-U.S. commercial loans of $2.2 billion . For more information, see Note 14 – Fair Value Measurements and Note 15 – Fair Value Option . (9) Total outstandings includes U.S. commercial real estate loans of $54.8 billion and non-U.S. commercial real estate loans of $3.5 billion . (10) Total outstandings Includes loans and leases pledged as collateral of $40.1 billion . The Corporation also pledged $160.3 billion of loans with no related outstanding borrowings to secure potential borrowing capacity with the Federal Reserve Bank and FHLB.
Schedule of Financing Receivables, Non Accrual Status	The table below presents the Corporation’s nonperforming loans and leases including nonperforming TDRs, and loans accruing past due 90 days or more at June 30, 2018 and December 31, 2017 . Nonperforming loans held-for-sale (LHFS) are excluded from nonperforming loans and leases as they are recorded at either fair value or the lower of cost or fair value. For more information on the criteria for classification as nonperforming, see Note 1 – Summary of Significant Accounting Principles to the Consolidated Financial Statements of the Corporation’s 2017 Annual Report on Form 10-K . Credit Quality Nonperforming Loans and Leases Accruing Past Due 90 Days or More (Dollars in millions) June 30 December 31 June 30 December 31 Consumer real estate Core portfolio Residential mortgage (1) $ 1,052 $ 1,087 $ 344 $ 417 Home equity 1,077 1,079 — — Non-core portfolio Residential mortgage (1) 1,088 1,389 2,139 2,813 Home equity 1,375 1,565 — — Credit card and other consumer U.S. credit card n/a n/a 865 900 Direct/Indirect consumer 47 46 35 40 Other consumer — — — — Total consumer 4,639 5,166 3,383 4,170 Commercial U.S. commercial 881 814 221 144 Non-U.S. commercial 170 299 — 3 Commercial real estate 117 112 — 4 Commercial lease financing 34 24 12 19 U.S. small business commercial 56 55 73 75 Total commercial 1,258 1,304 306 245 Total loans and leases $ 5,897 $ 6,470 $ 3,689 $ 4,415 (1) Residential mortgage loans in the core and non-core portfolios accruing past due 90 days or more are fully-insured loans. At June 30, 2018 and December 31, 2017 , residential mortgage includes $1.7 billion and $2.2 billion of loans on which interest has been curtailed by the Federal Housing Administration (FHA), and therefore are no longer accruing interest, although principal is still insured, and $742 million and $1.0 billion of loans on which interest is still accruing. n/a = not applicable
Financing Receivable Credit Quality Indicators	The following tables present certain credit quality indicators for the Corporation’s Consumer Real Estate, Credit Card and Other Consumer, and Commercial portfolio segments, by class of financing receivables, at June 30, 2018 and December 31, 2017 . Consumer Real Estate – Credit Quality Indicators (1) Core Residential Mortgage (2) Non-core Residential (2) Residential Mortgage PCI (3) Core Home Equity (2) Non-core Home Equity (2) Home Equity PCI (Dollars in millions) June 30, 2018 Refreshed LTV (4) Less than or equal to 90 percent $ 163,729 $ 9,975 $ 6,289 $ 40,505 $ 7,395 $ 1,618 Greater than 90 percent but less than or equal to 100 percent 2,676 664 452 476 880 338 Greater than 100 percent 992 777 466 544 1,409 422 Fully-insured loans (5) 17,265 4,279 — — — — Total consumer real estate $ 184,662 $ 15,695 $ 7,207 $ 41,525 $ 9,684 $ 2,378 Refreshed FICO score Less than 620 $ 2,128 $ 1,890 $ 1,673 $ 1,112 $ 1,858 $ 393 Greater than or equal to 620 and less than 680 4,236 1,690 1,431 2,152 2,090 390 Greater than or equal to 680 and less than 740 22,803 2,759 2,129 7,318 2,484 666 Greater than or equal to 740 138,230 5,077 1,974 30,943 3,252 929 Fully-insured loans (5) 17,265 4,279 — — — — Total consumer real estate $ 184,662 $ 15,695 $ 7,207 $ 41,525 $ 9,684 $ 2,378 (1) Excludes $848 million of loans accounted for under the fair value option. (2) Excludes PCI loans. (3) Includes $1.1 billion of pay option loans. The Corporation no longer originates this product. (4) Refreshed LTV percentages for PCI loans are calculated using the carrying value net of the related valuation allowance. (5) Credit quality indicators are not reported for fully-insured loans as principal repayment is insured. Credit Card and Other Consumer – Credit Quality Indicators U.S. Credit Card Direct/Indirect Consumer Other Consumer (Dollars in millions) June 30, 2018 Refreshed FICO score Less than 620 $ 4,504 $ 1,588 $ — Greater than or equal to 620 and less than 680 11,810 1,854 — Greater than or equal to 680 and less than 740 34,852 11,193 — Greater than or equal to 740 43,624 35,949 — Other internal credit metrics (1, 2) — 42,037 167 Total credit card and other consumer $ 94,790 $ 92,621 $ 167 (1) Other internal credit metrics may include delinquency status, geography or other factors. (2) Direct/indirect consumer includes $41.3 billion of securities-based lending which is overcollateralized and therefore has minimal credit risk. Commercial – Credit Quality Indicators (1) U.S. Commercial Non-U.S. Commercial Commercial Real Estate Commercial Financing U.S. Small Commercial (2) (Dollars in millions) June 30, 2018 Risk ratings Pass rated $ 281,622 $ 92,676 $ 60,622 $ 20,978 $ 282 Reservable criticized 8,119 1,774 451 421 36 Refreshed FICO score (3) Less than 620 235 Greater than or equal to 620 and less than 680 639 Greater than or equal to 680 and less than 740 1,982 Greater than or equal to 740 4,134 Other internal credit metrics (3, 4) 6,897 Total commercial $ 289,741 $ 94,450 $ 61,073 $ 21,399 $ 14,205 (1) Excludes $5.4 billion of loans accounted for under the fair value option. (2) U.S. small business commercial includes $725 million of criticized business card and small business loans which are evaluated using refreshed FICO scores or internal credit metrics, including delinquency status, rather than risk ratings. At June 30, 2018 , 99 percent of the balances where internal credit metrics are used was current or less than 30 days past due. (3) Refreshed FICO score and other internal credit metrics are applicable only to the U.S. small business commercial portfolio. (4) Other internal credit metrics may include delinquency status, application scores, geography or other factors. Consumer Real Estate – Credit Quality Indicators (1) Core Residential Mortgage (2) Non-core Residential (2) Residential Mortgage PCI (3) Core Home Equity (2) Non-core Home (2) Home Equity PCI (Dollars in millions) December 31, 2017 Refreshed LTV (4) Less than or equal to 90 percent $ 153,669 $ 12,135 $ 6,872 $ 43,048 $ 7,944 $ 1,781 Greater than 90 percent but less than or equal to 100 percent 3,082 850 559 549 1,053 412 Greater than 100 percent 1,322 1,011 570 648 1,786 523 Fully-insured loans (5) 18,545 5,196 — — — — Total consumer real estate $ 176,618 $ 19,192 $ 8,001 $ 44,245 $ 10,783 $ 2,716 Refreshed FICO score Less than 620 $ 2,234 $ 2,390 $ 1,941 $ 1,169 $ 2,098 $ 452 Greater than or equal to 620 and less than 680 4,531 2,086 1,657 2,371 2,393 466 Greater than or equal to 680 and less than 740 22,934 3,519 2,396 8,115 2,723 786 Greater than or equal to 740 128,374 6,001 2,007 32,590 3,569 1,012 Fully-insured loans (5) 18,545 5,196 — — — — Total consumer real estate $ 176,618 $ 19,192 $ 8,001 $ 44,245 $ 10,783 $ 2,716 (1) Excludes $928 million of loans accounted for under the fair value option. (2) Excludes PCI loans. (3) Includes $1.2 billion of pay option loans. The Corporation no longer originates this product. (4) Refreshed LTV percentages for PCI loans are calculated using the carrying value net of the related valuation allowance. (5) Credit quality indicators are not reported for fully-insured loans as principal repayment is insured. Credit Card and Other Consumer – Credit Quality Indicators U.S. Credit Card Direct/Indirect Consumer Other Consumer (Dollars in millions) December 31, 2017 Refreshed FICO score Less than 620 $ 4,730 $ 1,680 $ — Greater than or equal to 620 and less than 680 12,422 2,143 — Greater than or equal to 680 and less than 740 35,656 12,304 — Greater than or equal to 740 43,477 36,759 — Other internal credit metrics (1, 2) — 43,456 166 Total credit card and other consumer $ 96,285 $ 96,342 $ 166 (1) Other internal credit metrics may include delinquency status, geography or other factors. (2) Direct/indirect consumer includes $42.8 billion of securities-based lending which is overcollateralized and therefore has minimal credit risk. Commercial – Credit Quality Indicators (1) U.S. Commercial Non-U.S. Commercial Commercial Real Estate Commercial Financing U.S. Small Commercial (2) (Dollars in millions) December 31, 2017 Risk ratings Pass rated $ 275,904 $ 96,199 $ 57,732 $ 21,535 $ 322 Reservable criticized 8,932 1,593 566 581 50 Refreshed FICO score (3) Less than 620 223 Greater than or equal to 620 and less than 680 625 Greater than or equal to 680 and less than 740 1,875 Greater than or equal to 740 3,713 Other internal credit metrics (3, 4) 6,841 Total commercial $ 284,836 $ 97,792 $ 58,298 $ 22,116 $ 13,649 (1) Excludes $4.8 billion of loans accounted for under the fair value option. (2) U.S. small business commercial includes $709 million of criticized business card and small business loans which are evaluated using refreshed FICO scores or internal credit metrics, including delinquency status, rather than risk ratings. At December 31, 2017 , 98 percent of the balances where internal credit metrics are used was current or less than 30 days past due. (3) Refreshed FICO score and other internal credit metrics are applicable only to the U.S. small business commercial portfolio. (4) Other internal credit metrics may include delinquency status, application scores, geography or other factors.
Financing Receivable, Modifications [Line Items]
Accretable Yield Activity	The table below shows activity for the accretable yield on PCI loans. The reclassifications from nonaccretable difference during the three and six months ended June 30, 2018 were primarily due to an increase in the expected principal and interest cash flows due to lower default estimates and the rising interest rate environment. Rollforward of Accretable Yield (Dollars in millions) Three Months Ended June 30, 2018 Six Months Ended June 30, 2018 Accretable yield, beginning of period $ 2,730 $ 2,789 Accretion (124 ) (254 ) Disposals/transfers (105 ) (212 ) Reclassifications from nonaccretable difference 57 235 Accretable yield, June 30, 2018 $ 2,558 $ 2,558
Consumer real estate
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivables	The table below provides the unpaid principal balance, carrying value and related allowance at June 30, 2018 and December 31, 2017 , and the average carrying value and interest income recognized for the three and six months ended June 30, 2018 and 2017 for impaired loans in the Corporation’s Consumer Real Estate portfolio segment. Certain impaired consumer real estate loans do not have a related allowance as the current valuation of these impaired loans exceeded the carrying value, which is net of previously recorded charge-offs. Impaired Loans – Consumer Real Estate Unpaid Balance Carrying Value Related Allowance Unpaid Balance Carrying Value Related Allowance (Dollars in millions) June 30, 2018 December 31, 2017 With no recorded allowance Residential mortgage $ 6,544 $ 5,223 $ — $ 8,856 $ 6,870 $ — Home equity 3,545 1,932 — 3,622 1,956 — With an allowance recorded Residential mortgage $ 2,482 $ 2,421 $ 149 $ 2,908 $ 2,828 $ 174 Home equity 962 894 178 972 900 174 Total Residential mortgage (1) $ 9,026 $ 7,644 $ 149 $ 11,764 $ 9,698 $ 174 Home equity 4,507 2,826 178 4,594 2,856 174 Average Interest (2) Average Interest (2) Average Interest (2) Average Interest (2) Three Months Ended June 30 Six Months Ended June 30 2018 2017 2018 2017 With no recorded allowance Residential mortgage $ 5,362 $ 50 $ 7,886 $ 81 $ 5,978 $ 115 $ 8,192 $ 160 Home equity 1,944 25 1,999 28 1,953 52 2,000 55 With an allowance recorded Residential mortgage $ 2,482 $ 24 $ 3,647 $ 33 $ 2,597 $ 49 $ 3,723 $ 68 Home equity 891 6 868 7 889 12 842 12 Total Residential mortgage (1) $ 7,844 $ 74 $ 11,533 $ 114 $ 8,575 $ 164 $ 11,915 $ 228 Home equity 2,835 31 2,867 35 2,842 64 2,842 67 (1) During the three months ended June 30, 2018 , previously impaired residential mortgage loans with a carrying value of $1.2 billion were sold, resulting in a gain of $572 million recorded in other income. (2) Interest income recognized includes interest accrued and collected on the outstanding balances of accruing impaired loans as well as interest cash collections on nonaccruing impaired loans for which the principal is considered collectible.
Financing Receivable, Modifications [Line Items]
Troubled Debt Restructurings on Financing Receivables	The table below presents the June 30, 2018 and 2017 unpaid principal balance, carrying value, and average pre- and post-modification interest rates on consumer real estate loans that were modified in TDRs during the three and six months ended June 30, 2018 and 2017 . The following Consumer Real Estate portfolio segment tables include loans that were initially classified as TDRs during the period and also loans that had previously been classified as TDRs and were modified again during the period. Consumer Real Estate – TDRs Entered into During the Three and Six Months Ended June 30, 2018 and 2017 Unpaid Principal Balance Carrying Value Pre-Modification Interest Rate Post-Modification Interest Rate (1) Unpaid Principal Balance Carrying Pre-Modification Interest Rate Post-Modification Interest Rate (1) (Dollars in millions) Three Months Ended June 30, 2018 Six Months Ended June 30, 2018 Residential mortgage $ 276 $ 237 4.24 % 3.94 % $ 628 $ 542 4.17 % 3.93 % Home equity 194 152 4.43 4.42 392 297 4.38 4.06 Total (2) $ 470 $ 389 4.32 4.14 $ 1,020 $ 839 4.25 3.98 Three Months Ended June 30, 2017 Six Months Ended June 30, 2017 Residential mortgage $ 346 $ 313 4.50 % 4.37 % $ 646 $ 581 4.51 % 4.34 % Home equity 250 201 4.11 3.94 469 365 4.20 3.75 Total (2) $ 596 $ 514 4.33 4.19 $ 1,115 $ 946 4.38 4.09 (1) The post-modification interest rate reflects the interest rate applicable only to permanently completed modifications, which exclude loans that are in a trial modification period. (2) Net charge-offs, which include amounts recorded on loans modified during the period that are no longer held by the Corporation at June 30, 2018 and 2017 due to sales and other dispositions, were $15 million and $24 million for the three and six months ended June 30, 2018 compared to $12 million and $20 million for the same periods in 2017 . The table below presents the June 30, 2018 and 2017 carrying value for consumer real estate loans that were modified in a TDR during the three and six months ended June 30, 2018 and 2017 , by type of modification. Consumer Real Estate – Modification Programs TDRs Entered into During the Three Months Ended June 30 Six Months Ended June 30 (Dollars in millions) 2018 2017 2018 2017 Modifications under government programs Contractual interest rate reduction $ 9 $ 11 $ 17 $ 38 Principal and/or interest forbearance — 1 — 3 Other modifications (1) 8 3 18 8 Total modifications under government programs 17 15 35 49 Modifications under proprietary programs Contractual interest rate reduction 13 20 67 72 Capitalization of past due amounts 19 9 43 21 Principal and/or interest forbearance 5 3 16 9 Other modifications (1) 55 16 205 44 Total modifications under proprietary programs 92 48 331 146 Trial modifications 242 387 379 622 Loans discharged in Chapter 7 bankruptcy (2) 38 64 94 129 Total modifications $ 389 $ 514 $ 839 $ 946 (1) Includes other modifications such as term or payment extensions and repayment plans. During the three and six months ended June 30, 2018 , this included $38 million and $196 million of modifications related to the 2017 hurricanes that met the definition of a TDR. These modifications had been written down to their net realizable value less costs to sell or were fully insured as of June 30, 2018 . (2) Includes loans discharged in Chapter 7 bankruptcy with no change in repayment terms that are classified as TDRs. The table below presents the carrying value of consumer real estate loans that entered into payment default during the three and six months ended June 30, 2018 and 2017 that were modified in a TDR during the 12 months preceding payment default. A payment default for consumer real estate TDRs is recognized when a borrower has missed three monthly payments (not necessarily consecutively) since modification. Consumer Real Estate – TDRs Entering Payment Default that were Modified During the Preceding 12 Months Three Months Ended June 30 Six Months Ended June 30 (Dollars in millions) 2018 2017 2018 2017 Modifications under government programs $ 11 $ 20 $ 24 $ 46 Modifications under proprietary programs 56 33 87 67 Loans discharged in Chapter 7 bankruptcy (1) 16 15 39 77 Trial modifications (2) 22 46 67 258 Total modifications $ 105 $ 114 $ 217 $ 448 (1) Includes loans discharged in Chapter 7 bankruptcy with no change in repayment terms that are classified as TDRs. (2) Includes trial modification offers to which the customer did not respond.
Credit card and other consumer
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivables	The table below provides the unpaid principal balance, carrying value and related allowance at June 30, 2018 and December 31, 2017 , and the average carrying value and interest income recognized for the three and six months ended June 30, 2018 and 2017 on TDRs within the Credit Card and Other Consumer portfolio segment. Impaired Loans – Credit Card and Other Consumer Unpaid Balance Carrying Value (1) Related Allowance Unpaid Balance Carrying Value (1) Related Allowance (Dollars in millions) June 30, 2018 December 31, 2017 With no recorded allowance Direct/Indirect consumer $ 63 $ 30 $ — $ 58 $ 28 $ — With an allowance recorded U.S. credit card $ 478 $ 486 $ 143 $ 454 $ 461 $ 125 Direct/Indirect consumer 1 1 — 1 1 — Total U.S. credit card $ 478 $ 486 $ 143 $ 454 $ 461 $ 125 Direct/Indirect consumer 64 31 — 59 29 — Average Interest (2) Average Interest (2) Average Interest (2) Average Interest (2) Three Months Ended June 30 Six Months Ended June 30 2018 2017 2018 2017 With no recorded allowance Direct/Indirect consumer $ 29 $ 1 $ 18 $ — $ 29 $ 1 $ 18 $ — With an allowance recorded U.S. credit card $ 480 $ 6 $ 463 $ 6 $ 473 $ 12 $ 470 $ 12 Non-U.S. credit card (3) — — 78 — — — 88 1 Direct/Indirect consumer 1 — 2 — 1 — 3 — Total U.S. credit card $ 480 $ 6 $ 463 $ 6 $ 473 $ 12 $ 470 $ 12 Non-U.S. credit card (3) — — 78 — — — 88 1 Direct/Indirect consumer 30 1 20 — 30 1 21 — (1) Includes accrued interest and fees. (2) Interest income recognized includes interest accrued and collected on the outstanding balances of accruing impaired loans as well as interest cash collections on nonaccruing impaired loans for which the principal is considered collectible. (3) In the second quarter of 2017, the Corporation sold its non-U.S. consumer credit card business.
Financing Receivable, Modifications [Line Items]
Troubled Debt Restructurings on Financing Receivables	The table below provides information on the Corporation’s primary modification programs for the Credit Card and Other Consumer TDR portfolio at June 30, 2018 and December 31, 2017 . Credit Card and Other Consumer – TDRs by Program Type U.S. Credit Card Direct/Indirect Consumer Total TDRs by Program Type (Dollars in millions) June 30 December 31 June 30 December 31 June 30 December 31 Internal programs $ 223 $ 203 $ 1 $ 1 $ 224 $ 204 External programs 262 257 — — 262 257 Other 1 1 30 28 31 29 Total $ 486 $ 461 $ 31 $ 29 $ 517 $ 490 Percent of balances current or less than 30 days past due 86.42 % 86.92 % 89.63 % 88.16 % 86.60 % 87.00 % The table below provides information on the Corporation’s Credit Card and Other Consumer TDR portfolio including the June 30, 2018 and 2017 unpaid principal balance, carrying value, and average pre- and post-modification interest rates of loans that were modified in TDRs during the three and six months ended June 30, 2018 and 2017 . Credit Card and Other Consumer – TDRs Entered into During the Three and Six Months Ended June 30, 2018 and 2017 Unpaid Principal Balance Carrying Value (1) Pre-Modification Interest Rate Post-Modification Interest Rate Unpaid Principal Balance Carrying Value (1) Pre-Modification Interest Rate Post-Modification Interest Rate (Dollars in millions) Three Months Ended June 30, 2018 Six Months Ended June 30, 2018 U.S. credit card $ 72 $ 78 19.18 % 5.29 % $ 140 $ 149 19.06 % 5.26 % Direct/Indirect consumer 19 11 4.43 4.43 28 16 4.73 4.56 Total (2) $ 91 $ 89 17.29 5.18 $ 168 $ 165 17.63 5.19 Three Months Ended June 30, 2017 Six Months Ended June 30, 2017 U.S. credit card $ 52 $ 57 18.31 % 5.30 % $ 100 $ 106 18.19 % 5.32 % Direct/Indirect consumer 7 4 4.14 4.08 11 6 4.12 4.04 Total (2) $ 59 $ 61 17.31 5.21 $ 111 $ 112 17.39 5.24 (1) Includes accrued interest and fees. (2) Net charge-offs were $14 million and $22 million for the three and six months ended June 30, 2018 compared to $13 million and $19 million for the same periods in 2017 , including net charge-offs related to the non-U.S. credit card loan portfolio sold during the second quarter of 2017.
Commercial Portfolio Segment
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivables	The table below provides information on impaired loans in the Commercial loan portfolio segment including the unpaid principal balance, carrying value and related allowance at June 30, 2018 and December 31, 2017 , and the average carrying value and interest income recognized for the three and six months ended June 30, 2018 and 2017 . Certain impaired commercial loans do not have a related allowance because the valuation of these impaired loans exceeded the carrying value, which is net of previously recorded charge-offs. Impaired Loans – Commercial Unpaid Balance Carrying Value Related Allowance Unpaid Balance Carrying Value Related Allowance (Dollars in millions) June 30, 2018 December 31, 2017 With no recorded allowance U.S. commercial $ 599 $ 596 $ — $ 576 $ 571 $ — Non-U.S. commercial 8 8 — 14 11 — Commercial real estate 112 104 — 83 80 — Commercial lease financing 3 3 — — — — With an allowance recorded U.S. commercial $ 1,529 $ 1,246 $ 140 $ 1,393 $ 1,109 $ 98 Non-U.S. commercial 426 395 41 528 507 58 Commercial real estate 100 20 3 133 41 4 Commercial lease financing 45 44 — 20 18 3 U.S. small business commercial (1) 86 73 28 84 70 27 Total U.S. commercial $ 2,128 $ 1,842 $ 140 $ 1,969 $ 1,680 $ 98 Non-U.S. commercial 434 403 41 542 518 58 Commercial real estate 212 124 3 216 121 4 Commercial lease financing 48 47 — 20 18 3 U.S. small business commercial (1) 86 73 28 84 70 27 Average Interest (2) Average Interest (2) Average Interest (2) Average Interest (2) Three Months Ended June 30 Six Months Ended June 30 2018 2017 2018 2017 With no recorded allowance U.S. commercial $ 684 $ 4 $ 857 $ 3 $ 678 $ 8 $ 870 $ 6 Non-U.S. commercial 61 — 43 — 61 2 75 — Commercial real estate 81 1 48 — 75 1 54 — Commercial lease financing 7 — — — 6 — — — With an allowance recorded U.S. commercial $ 1,221 $ 10 $ 1,264 $ 7 $ 1,163 $ 21 $ 1,376 $ 16 Non-U.S. commercial 386 4 482 3 416 6 469 6 Commercial real estate 8 — 106 1 22 — 91 2 Commercial lease financing 25 — 4 — 18 — 4 — U.S. small business commercial (1) 73 — 77 — 74 — 75 — Total U.S. commercial $ 1,905 $ 14 $ 2,121 $ 10 $ 1,841 $ 29 $ 2,246 $ 22 Non-U.S. commercial 447 4 525 3 477 8 544 6 Commercial real estate 89 1 154 1 97 1 145 2 Commercial lease financing 32 — 4 — 24 — 4 — U.S. small business commercial (1) 73 — 77 — 74 — 75 — (1) Includes U.S. small business commercial renegotiated TDR loans and related allowance. (2) Interest income recognized includes interest accrued and collected on the outstanding balances of accruing impaired loans as well as interest cash collections on nonaccruing impaired loans for which the principal is considered collectible.
Financing Receivable, Modifications [Line Items]
Troubled Debt Restructurings on Financing Receivables	The table below presents the June 30, 2018 and 2017 unpaid principal balance and carrying value of commercial loans that were modified as TDRs during the three and six months ended June 30, 2018 and 2017 . The table below includes loans that were initially classified as TDRs during the period and also loans that had previously been classified as TDRs and were modified again during the period. Commercial – TDRs Entered into During the Three and Six Months Ended June 30, 2018 and 2017 Unpaid Principal Balance Carrying Unpaid Principal Balance Carrying (Dollars in millions) Three Months Ended June 30, 2018 Six Months Ended June 30, 2018 U.S. commercial $ 743 $ 733 $ 1,040 $ 962 Non-U.S. commercial 8 8 257 247 Commercial real estate 5 5 5 5 Commercial lease financing 45 45 45 45 U.S. small business commercial (1) 3 3 5 5 Total (2) $ 804 $ 794 $ 1,352 $ 1,264 Three Months Ended June 30, 2017 Six Months Ended June 30, 2017 U.S. commercial $ 405 $ 393 $ 687 $ 648 Commercial real estate 44 37 59 46 U.S. small business commercial (1) 7 7 9 10 Total (2) $ 456 $ 437 $ 755 $ 704 (1) U.S. small business commercial TDRs are comprised of renegotiated small business card loans. (2) Net charge-offs were $9 million and $26 million for the three and six months ended June 30, 2018 compared to $21 million and $62 million for the same periods in 2017 .

Allowance for Credit Losses (Ta

Allowance for Credit Losses (Tables)	6 Months Ended
	Jun. 30, 2018
Receivables [Abstract]
Changes in the Allowance for Credit Losses	The table below summarizes the changes in the allowance for credit losses by portfolio segment for the three and six months ended June 30, 2018 and 2017 . Consumer (1) Credit Card and Other Consumer Commercial Total (Dollars in millions) Three Months Ended June 30, 2018 Allowance for loan and lease losses, April 1 $ 1,530 $ 3,720 $ 5,010 $ 10,260 Loans and leases charged off (137 ) (1,033 ) (208 ) (1,378 ) Recoveries of loans and leases previously charged off 130 210 42 382 Net charge-offs (7 ) (823 ) (166 ) (996 ) Write-offs of PCI loans (2) (36 ) — — (36 ) Provision for loan and lease losses (3) (121 ) 878 65 822 Other (4) — (1 ) 1 — Allowance for loan and lease losses, June 30 1,366 3,774 4,910 10,050 Reserve for unfunded lending commitments, April 1 — — 782 782 Provision for unfunded lending commitments — — 5 5 Reserve for unfunded lending commitments, June 30 — — 787 787 Allowance for credit losses, June 30 $ 1,366 $ 3,774 $ 5,697 $ 10,837 Three Months Ended June 30, 2017 Allowance for loan and lease losses, April 1 $ 2,565 $ 3,329 $ 5,218 $ 11,112 Loans and leases charged off (198 ) (954 ) (198 ) (1,350 ) Recoveries of loans and leases previously charged off 167 234 41 442 Net charge-offs (31 ) (720 ) (157 ) (908 ) Write-offs of PCI loans (2) (55 ) — — (55 ) Provision for loan and lease losses (3) (170 ) 776 120 726 Other (4) — 1 (1 ) — Allowance for loan and lease losses, June 30 2,309 3,386 5,180 10,875 Reserve for unfunded lending commitments, April 1 and June 30 — — 757 757 Allowance for credit losses, June 30 $ 2,309 $ 3,386 $ 5,937 $ 11,632 Six Months Ended June 30, 2018 Allowance for loan and lease losses, January 1 $ 1,720 $ 3,663 $ 5,010 $ 10,393 Loans and leases charged off (311 ) (2,039 ) (324 ) (2,674 ) Recoveries of loans and leases previously charged off 277 413 77 767 Net charge-offs (34 ) (1,626 ) (247 ) (1,907 ) Write-offs of PCI loans (2) (71 ) — — (71 ) Provision for loan and lease losses (3) (249 ) 1,754 146 1,651 Other (4) — (17 ) 1 (16 ) Allowance for loan and lease losses, June 30 1,366 3,774 4,910 10,050 Reserve for unfunded lending commitments, January 1 — — 777 777 Provision for unfunded lending commitments — — 10 10 Reserve for unfunded lending commitments, June 30 — — 787 787 Allowance for credit losses, June 30 $ 1,366 $ 3,774 $ 5,697 $ 10,837 Six Months Ended June 30, 2017 Allowance for loan and lease losses, January 1 $ 2,750 $ 3,229 $ 5,258 $ 11,237 Loans and leases charged off (402 ) (1,900 ) (358 ) (2,660 ) Recoveries of loans and leases previously charged off 290 434 94 818 Net charge-offs (112 ) (1,466 ) (264 ) (1,842 ) Write-offs of PCI loans (2) (88 ) — — (88 ) Provision for loan and lease losses (3) (241 ) 1,619 188 1,566 Other (4) — 4 (2 ) 2 Allowance for loan and lease losses, June 30 2,309 3,386 5,180 10,875 Reserve for unfunded lending commitments, January 1 — — 762 762 Provision for unfunded lending commitments — — (5 ) (5 ) Reserve for unfunded lending commitments, June 30 — — 757 757 Allowance for credit losses, June 30 $ 2,309 $ 3,386 $ 5,937 $ 11,632 (1) Includes valuation allowance associated with the PCI loan portfolio. (2) Includes write-offs associated with the sale of PCI loans of $1 million and $17 million during the three and six months ended June 30, 2018 compared to $35 million for both of the same periods in 2017 . (3) Includes provision benefit associated with the PCI loan portfolio of $14 million and $25 million during the three and six months ended June 30, 2018 compared to provision benefit of $24 million and provision expense of $44 million for the same periods in 2017 . (4) Primarily represents the net impact of portfolio sales, consolidations and deconsolidations, foreign currency translation adjustments, transfers to held for sale and certain other reclassifications. The table below presents the allowance and the carrying value of outstanding loans and leases by portfolio segment at June 30, 2018 and December 31, 2017 . Allowance and Carrying Value by Portfolio Segment Consumer Credit Card and Other Consumer Commercial Total (Dollars in millions) June 30, 2018 Impaired loans and troubled debt restructurings (1) Allowance for loan and lease losses $ 327 $ 143 $ 212 $ 682 Carrying value (2) 10,470 517 2,489 13,476 Allowance as a percentage of carrying value 3.12 % 27.66 % 8.52 % 5.06 % Loans collectively evaluated for impairment Allowance for loan and lease losses $ 848 $ 3,631 $ 4,698 $ 9,177 Carrying value (2, 3) 241,096 187,061 478,379 906,536 Allowance as a percentage of carrying value (3) 0.35 % 1.94 % 0.98 % 1.01 % Purchased credit-impaired loans Valuation allowance $ 191 n/a n/a $ 191 Carrying value gross of valuation allowance 9,585 n/a n/a 9,585 Valuation allowance as a percentage of carrying value 1.99 % n/a n/a 1.99 % Total Allowance for loan and lease losses $ 1,366 $ 3,774 $ 4,910 $ 10,050 Carrying value (2, 3) 261,151 187,578 480,868 929,597 Allowance as a percentage of carrying value (3) 0.52 % 2.01 % 1.02 % 1.08 % December 31, 2017 Impaired loans and troubled debt restructurings (1) Allowance for loan and lease losses $ 348 $ 125 $ 190 $ 663 Carrying value (2) 12,554 490 2,407 15,451 Allowance as a percentage of carrying value 2.77 % 25.51 % 7.89 % 4.29 % Loans collectively evaluated for impairment Allowance for loan and lease losses $ 1,083 $ 3,538 $ 4,820 $ 9,441 Carrying value (2, 3) 238,284 192,303 474,284 904,871 Allowance as a percentage of carrying value (3) 0.45 % 1.84 % 1.02 % 1.04 % Purchased credit-impaired loans Valuation allowance $ 289 n/a n/a $ 289 Carrying value gross of valuation allowance 10,717 n/a n/a 10,717 Valuation allowance as a percentage of carrying value 2.70 % n/a n/a 2.70 % Total Allowance for loan and lease losses $ 1,720 $ 3,663 $ 5,010 $ 10,393 Carrying value (2, 3) 261,555 192,793 476,691 931,039 Allowance as a percentage of carrying value (3) 0.66 % 1.90 % 1.05 % 1.12 % (1) Impaired loans include nonperforming commercial loans and all TDRs, including both commercial and consumer TDRs. Impaired loans exclude nonperforming consumer loans unless they are TDRs, and all consumer and commercial loans accounted for under the fair value option. (2) Amounts are presented gross of the allowance for loan and lease losses. (3) Outstanding loan and lease balances and ratios do not include loans accounted for under the fair value option of $6.2 billion and $5.7 billion at June 30, 2018 and December 31, 2017 . n/a = not applicable

Securitizations and Other Var31

Securitizations and Other Variable Interest Entities (Tables)	6 Months Ended
	Jun. 30, 2018
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Mortgage Related Securitizations	The table below summarizes select information related to first-lien mortgage securitizations for the three and six months ended June 30, 2018 and 2017 . First-lien Mortgage Securitizations Residential Mortgage - Agency Commercial Mortgage Three Months Ended June 30 Six Months Ended June 30 Three Months Ended June 30 Six Months Ended June 30 (Dollars in millions) 2018 2017 2018 2017 2018 2017 2018 2017 Cash proceeds from new securitizations (1) $ 1,379 $ 3,302 $ 3,065 $ 7,958 $ 1,672 $ 1,097 $ 2,184 $ 1,706 Gains on securitizations (2) 23 61 41 100 21 35 39 53 Repurchases from securitization trusts (3) 357 602 858 1,474 — — — — (1) The Corporation transfers residential mortgage loans to securitizations sponsored by the GSEs or Government National Mortgage Association (GNMA) in the normal course of business and receives RMBS in exchange which may then be sold into the market to third-party investors for cash proceeds. (2) A majority of the first-lien residential mortgage loans securitized are initially classified as LHFS and accounted for under the fair value option. Gains recognized on these LHFS prior to securitization, which totaled $21 million and $45 million , net of hedges, during the three and six months ended June 30, 2018 , compared to $42 million and $132 million for the same periods in 2017 , are not included in the table above. (3) The Corporation may have the option to repurchase delinquent loans out of securitization trusts, which reduces the amount of servicing advances it is required to make. The Corporation may also repurchase loans from securitization trusts to perform modifications. Repurchased loans include FHA-insured mortgages collateralizing GNMA securities.
Variable Interest Entity [Line Items]
Schedule of Variable Interest Entities	The table below summarizes select information related to home equity loan, credit card and other asset-backed VIEs in which the Corporation held a variable interest at June 30, 2018 and December 31, 2017 . Home Equity Loan, Credit Card and Other Asset-backed VIEs Home Equity Loan (1) Credit Card (2, 3) Resecuritization Trusts Municipal Bond Trusts (Dollars in millions) June 30 December 31 June 30 December 31 June 30 December 31 June 30 December 31 Unconsolidated VIEs Maximum loss exposure $ 1,238 $ 1,522 $ — $ — $ 8,025 $ 8,204 $ 1,726 $ 1,631 On-balance sheet assets Senior securities (4) : Trading account assets $ — $ — $ — $ — $ 1,297 $ 869 $ — $ 33 Debt securities carried at fair value 31 36 — — 1,471 1,661 — — Held-to-maturity securities — — — — 5,257 5,644 — — All other assets (4) — — — — — 30 — — Total retained positions $ 31 $ 36 $ — $ — $ 8,025 $ 8,204 $ — $ 33 Total assets of VIEs (5) $ 2,085 $ 2,432 $ — $ — $ 19,975 $ 19,281 $ 2,378 $ 2,287 Consolidated VIEs Maximum loss exposure $ 97 $ 112 $ 20,518 $ 24,337 $ 264 $ 628 $ 1,480 $ 1,453 On-balance sheet assets Trading account assets $ — $ — $ — $ — $ 622 $ 1,557 $ 1,492 $ 1,452 Loans and leases 154 177 30,433 32,554 — — — — Allowance for loan and lease losses (7 ) (9 ) (944 ) (988 ) — — — — All other assets 5 6 128 1,385 — — 1 1 Total assets $ 152 $ 174 $ 29,617 $ 32,951 $ 622 $ 1,557 $ 1,493 $ 1,453 On-balance sheet liabilities Short-term borrowings $ — $ — $ — $ — $ — $ — $ 396 $ 312 Long-term debt 65 76 9,071 8,598 358 929 12 — All other liabilities — — 28 16 — — — — Total liabilities $ 65 $ 76 $ 9,099 $ 8,614 $ 358 $ 929 $ 408 $ 312 (1) For unconsolidated home equity loan VIEs, the maximum loss exposure includes outstanding trust certificates issued by trusts in rapid amortization, net of recorded reserves. For both consolidated and unconsolidated home equity loan VIEs, the maximum loss exposure excludes the reserve for representations and warranties obligations and corporate guarantees. For more information, see Note 10 – Commitments and Contingencies . (2) At June 30, 2018 and December 31, 2017 , loans and leases in the consolidated credit card trust included $13.0 billion and $15.6 billion of seller’s interest. (3) At June 30, 2018 and December 31, 2017 , all other assets in the consolidated credit card trust included restricted cash, certain short-term investments, and unbilled accrued interest and fees. (4) All other assets includes subordinate securities. The retained senior and subordinate securities were valued using quoted market prices or observable market inputs (Level 2 of the fair value hierarchy). (5) Total assets of VIEs includes loans the Corporation transferred with which it has continuing involvement, which may include servicing the loan.
First Lien Mortgages
Variable Interest Entity [Line Items]
Schedule of Variable Interest Entities	The table below summarizes select information related to first-lien mortgage securitization trusts in which the Corporation held a variable interest at June 30, 2018 and December 31, 2017 . First-lien Mortgage VIEs Residential Mortgage Non-agency Agency Prime Subprime Alt-A Commercial Mortgage (Dollars in millions) June 30 December 31 June 30 December 31 June 30 December 31 June 30 December 31 June 30 December 31 Unconsolidated VIEs Maximum loss exposure (1) $ 17,336 $ 19,110 $ 655 $ 689 $ 2,483 $ 2,643 $ 399 $ 403 $ 615 $ 585 On-balance sheet assets Senior securities: Trading account assets $ 636 $ 716 $ 50 $ 6 $ 36 $ 10 $ 62 $ 50 $ 58 $ 108 Debt securities carried at fair value 13,075 15,036 420 477 2,021 2,221 335 351 — — Held-to-maturity securities 3,625 3,348 — — — — — — 362 274 All other assets (2) — 10 5 5 60 38 2 2 80 88 Total retained positions $ 17,336 $ 19,110 $ 475 $ 488 $ 2,117 $ 2,269 $ 399 $ 403 $ 500 $ 470 Principal balance outstanding (3) $ 208,265 $ 232,761 $ 10,083 $ 10,549 $ 9,436 $ 10,254 $ 25,640 $ 28,129 $ 26,487 $ 26,504 Consolidated VIEs Maximum loss exposure (1) $ 13,342 $ 14,502 $ 653 $ 571 $ — $ — $ — $ — $ — $ — On-balance sheet assets Trading account assets $ 269 $ 232 $ 837 $ 571 $ — $ — $ — $ — $ — $ — Loans and leases, net 12,867 14,030 — — — — — — — — All other assets 207 240 — — — — — — — — Total assets $ 13,343 $ 14,502 $ 837 $ 571 $ — $ — $ — $ — $ — $ — Total liabilities $ 3 $ 3 $ 184 $ — $ — $ — $ — $ — $ — $ — (1) Maximum loss exposure includes obligations under loss-sharing reinsurance and other arrangements for non-agency residential mortgage and commercial mortgage securitizations, but excludes the reserve for representations and warranties obligations and corporate guarantees and also excludes servicing advances and other servicing rights and obligations. For more information, see Note 10 – Commitments and Contingencies and Note 14 – Fair Value Measurements . (2) Not included in the table above are all other assets of $61 million and $148 million , representing the unpaid principal balance of mortgage loans eligible for repurchase from unconsolidated residential mortgage securitization VIEs, principally guaranteed by GNMA, and all other liabilities of $61 million and $148 million , representing the principal amount that would be payable to the securitization VIEs if the Corporation was to exercise the repurchase option, at June 30, 2018 and December 31, 2017 . (3) Principal balance outstanding includes loans where the Corporation was the transferor to securitization VIEs with which it has continuing involvement, which may include servicing the loans.
Other Variable Interest Entities
Variable Interest Entity [Line Items]
Schedule of Variable Interest Entities	The table below summarizes select information related to other VIEs in which the Corporation held a variable interest at June 30, 2018 and December 31, 2017 . Other VIEs Consolidated Unconsolidated Total Consolidated Unconsolidated Total (Dollars in millions) June 30, 2018 December 31, 2017 Maximum loss exposure $ 4,369 $ 21,209 $ 25,578 $ 4,660 $ 19,785 $ 24,445 On-balance sheet assets Trading account assets $ 2,472 $ 656 $ 3,128 $ 2,709 $ 346 $ 3,055 Debt securities carried at fair value — 61 61 — 160 160 Loans and leases 2,024 4,667 6,691 2,152 3,596 5,748 Allowance for loan and lease losses (3 ) (29 ) (32 ) (3 ) (32 ) (35 ) Loans held-for-sale 3 388 391 27 940 967 All other assets 55 15,018 15,073 62 14,276 14,338 Total $ 4,551 $ 20,761 $ 25,312 $ 4,947 $ 19,286 $ 24,233 On-balance sheet liabilities Long-term debt $ 174 $ — $ 174 $ 270 $ — $ 270 All other liabilities 9 3,982 3,991 18 3,417 3,435 Total $ 183 $ 3,982 $ 4,165 $ 288 $ 3,417 $ 3,705 Total assets of VIEs $ 4,551 $ 86,070 $ 90,621 $ 4,947 $ 69,746 $ 74,693

Goodwill and Intangible Assets

Goodwill and Intangible Assets (Tables)	6 Months Ended
	Jun. 30, 2018
Goodwill and Intangible Assets Disclosure [Abstract]
Goodwill	The table below presents goodwill balances by reporting unit and All Other at June 30, 2018 and December 31, 2017 . The reporting units utilized for goodwill impairment testing are the operating segments or one level below. Goodwill (Dollars in millions) June 30 December 31 Deposits $ 18,414 $ 18,414 Consumer Lending 11,709 11,709 Consumer Banking 30,123 30,123 U.S. Trust 2,917 2,917 Merrill Lynch Global Wealth Management 6,760 6,760 Global Wealth & Investment Management 9,677 9,677 Global Commercial Banking 16,146 16,146 Global Corporate and Investment Banking 6,231 6,231 Business Banking 1,546 1,546 Global Banking 23,923 23,923 Global Markets 5,182 5,182 All Other 46 46 Total goodwill $ 68,951 $ 68,951
Intangible Assets	The table below presents the gross and net carrying values and accumulated amortization for intangible assets at June 30, 2018 and December 31, 2017 . Intangible Assets (1, 2) Gross Accumulated Net Gross Accumulated Net (Dollars in millions) June 30, 2018 December 31, 2017 Purchased credit card and affinity relationships $ 5,919 $ 5,682 $ 237 $ 5,919 $ 5,604 $ 315 Core deposit and other intangibles (3) 3,835 2,181 1,654 3,835 2,140 1,695 Customer relationships 3,886 3,735 151 3,886 3,584 302 Total intangible assets $ 13,640 $ 11,598 $ 2,042 $ 13,640 $ 11,328 $ 2,312 (1) Excludes fully amortized intangible assets. (2) At June 30, 2018 and December 31, 2017 , none of the intangible assets were impaired. (3) Includes $1.6 billion at both June 30, 2018 and December 31, 2017 of intangible assets associated with trade names that have an indefinite life and, accordingly, are not amortized.

Federal Funds Sold or Purchas33

Federal Funds Sold or Purchased, Securities Financing Agreements, Short-term Borrowings and Restricted Cash (Tables)	6 Months Ended
	Jun. 30, 2018
Federal Funds Sold, Securities Borrowed or Purchased Under Agreements to Resell and Short-term Borrowings [Abstract]
Federal Funds Sold Securities Borrowed or Purchased Under Agreements to Resell and Short Term Borrowings	The table below presents federal funds sold or purchased, securities financing agreements (which include securities borrowed or purchased under agreements to resell and securities loaned or sold under agreements to repurchase) and short-term borrowings. The Corporation elects to account for certain securities financing agreements and short-term borrowings under the fair value option. For more information on the election of the fair value option, see Note 15 – Fair Value Option . Amount Rate Amount Rate Amount Rate Amount Rate Three Months Ended June 30 Six Months Ended June 30 (Dollars in millions) 2018 2017 2018 2017 Federal funds sold and securities borrowed or purchased under agreements to resell Average during period $ 251,880 1.13 % $ 226,700 0.77 % $ 250,110 1.07 % $ 221,579 0.72 % Maximum month-end balance during period 264,923 n/a 237,064 n/a 264,923 n/a 237,064 n/a Federal funds purchased and securities loaned or sold under agreements to repurchase Average during period $ 194,298 1.85 % $ 208,760 1.21 % $ 194,953 1.63 % $ 200,265 1.08 % Maximum month-end balance during period 199,419 n/a 218,017 n/a 199,419 n/a 218,017 n/a Short-term borrowings Average during period 40,542 5.61 42,881 2.65 43,422 4.75 41,468 2.39 Maximum month-end balance during period 44,382 n/a 46,202 n/a 52,480 n/a 46,202 n/a
Offsetting Assets [Line Items]
Transfer of Certain Financial Assets Accounted for as Secured Borrowings	The following tables present securities sold under agreements to repurchase and securities loaned by remaining contractual term to maturity and class of collateral pledged. Included in “Other” are transactions where the Corporation acts as the lender in a securities lending agreement and receives securities that can be pledged as collateral or sold. Certain agreements contain a right to substitute collateral and/or terminate the agreement prior to maturity at the option of the Corporation or the counterparty. Such agreements are included in the table below based on the remaining contractual term to maturity. Remaining Contractual Maturity June 30, 2018 (Dollars in millions) Overnight and Continuous 30 Days or Less After 30 Days Through 90 Days Greater than 90 Days (1) Total Securities sold under agreements to repurchase $ 125,778 $ 81,805 $ 32,591 $ 44,612 $ 284,786 Securities loaned 12,671 236 2,353 4,922 20,182 Other 21,063 — — — 21,063 Total $ 159,512 $ 82,041 $ 34,944 $ 49,534 $ 326,031 December 31, 2017 Securities sold under agreements to repurchase $ 125,956 $ 79,913 $ 46,091 $ 38,935 $ 290,895 Securities loaned 9,853 5,658 2,043 4,133 21,687 Other 22,711 — — — 22,711 Total $ 158,520 $ 85,571 $ 48,134 $ 43,068 $ 335,293 (1) No agreements have maturities greater than three years . Class of Collateral Pledged June 30, 2018 (Dollars in millions) Securities Sold Under Agreements to Repurchase Securities Loaned Other Total U.S. government and agency securities $ 153,756 $ — $ — $ 153,756 Corporate securities, trading loans and other 13,093 2,246 348 15,687 Equity securities 19,408 14,288 20,663 54,359 Non-U.S. sovereign debt 94,054 3,648 52 97,754 Mortgage trading loans and ABS 4,475 — — 4,475 Total $ 284,786 $ 20,182 $ 21,063 $ 326,031 December 31, 2017 U.S. government and agency securities $ 158,299 $ — $ 409 $ 158,708 Corporate securities, trading loans and other 12,787 2,669 624 16,080 Equity securities 23,975 13,523 21,628 59,126 Non-U.S. sovereign debt 90,857 5,495 50 96,402 Mortgage trading loans and ABS 4,977 — — 4,977 Total $ 290,895 $ 21,687 $ 22,711 $ 335,293
Securities Loaned and Financial Assets Sold Under Agreements to Repurchase
Offsetting Liabilities [Line Items]
Offsetting Liabilities	The Securities Financing Agreements table presents securities financing agreements included on the Consolidated Balance Sheet in federal funds sold and securities borrowed or purchased under agreements to resell, and in federal funds purchased and securities loaned or sold under agreements to repurchase at June 30, 2018 and December 31, 2017 . Balances are presented on a gross basis, prior to the application of counterparty netting. Gross assets and liabilities are adjusted on an aggregate basis to take into consideration the effects of legally enforceable master netting agreements. For more information on the offsetting of derivatives, see Note 3 – Derivatives . Securities Financing Agreements Gross Assets/Liabilities (1) Amounts Offset Net Balance Sheet Amount Financial Instruments (2) Net Assets/Liabilities (Dollars in millions) June 30, 2018 Securities borrowed or purchased under agreements to resell (3) $ 353,551 $ (127,065 ) $ 226,486 $ (186,805 ) $ 39,681 Securities loaned or sold under agreements to repurchase $ 304,968 $ (127,065 ) $ 177,903 $ (147,798 ) $ 30,105 Other (4) 21,063 — 21,063 (21,063 ) — Total $ 326,031 $ (127,065 ) $ 198,966 $ (168,861 ) $ 30,105 December 31, 2017 Securities borrowed or purchased under agreements to resell (3) $ 348,472 $ (135,725 ) $ 212,747 $ (165,720 ) $ 47,027 Securities loaned or sold under agreements to repurchase $ 312,582 $ (135,725 ) $ 176,857 $ (146,205 ) $ 30,652 Other (4) 22,711 — 22,711 (22,711 ) — Total $ 335,293 $ (135,725 ) $ 199,568 $ (168,916 ) $ 30,652 (1) Includes activity where uncertainty exists as to the enforceability of certain master netting agreements under bankruptcy laws in some countries or industries. (2) Includes securities collateral received or pledged under repurchase or securities lending agreements where there is a legally enforceable master netting agreement. These amounts are not offset on the Consolidated Balance Sheet, but are shown as a reduction to derive a net asset or liability. Securities collateral received or pledged where the legal enforceability of the master netting agreements is uncertain is excluded from the table. (3) Excludes repurchase activity of $11.5 billion and $10.2 billion reported in loans and leases on the Consolidated Balance Sheet at June 30, 2018 and December 31, 2017 . (4) Balance is reported in accrued expenses and other liabilities on the Consolidated Balance Sheet and relates to transactions where the Corporation acts as the lender in a securities lending agreement and receives securities that can be pledged as collateral or sold. In these transactions, the Corporation recognizes an asset at fair value, representing the securities received, and a liability, representing the obligation to return those securities.
Securities Borrowed and Securities Purchased Under Agreements to Resell
Offsetting Assets [Line Items]
Offsetting Assets	The Securities Financing Agreements table presents securities financing agreements included on the Consolidated Balance Sheet in federal funds sold and securities borrowed or purchased under agreements to resell, and in federal funds purchased and securities loaned or sold under agreements to repurchase at June 30, 2018 and December 31, 2017 . Balances are presented on a gross basis, prior to the application of counterparty netting. Gross assets and liabilities are adjusted on an aggregate basis to take into consideration the effects of legally enforceable master netting agreements. For more information on the offsetting of derivatives, see Note 3 – Derivatives . Securities Financing Agreements Gross Assets/Liabilities (1) Amounts Offset Net Balance Sheet Amount Financial Instruments (2) Net Assets/Liabilities (Dollars in millions) June 30, 2018 Securities borrowed or purchased under agreements to resell (3) $ 353,551 $ (127,065 ) $ 226,486 $ (186,805 ) $ 39,681 Securities loaned or sold under agreements to repurchase $ 304,968 $ (127,065 ) $ 177,903 $ (147,798 ) $ 30,105 Other (4) 21,063 — 21,063 (21,063 ) — Total $ 326,031 $ (127,065 ) $ 198,966 $ (168,861 ) $ 30,105 December 31, 2017 Securities borrowed or purchased under agreements to resell (3) $ 348,472 $ (135,725 ) $ 212,747 $ (165,720 ) $ 47,027 Securities loaned or sold under agreements to repurchase $ 312,582 $ (135,725 ) $ 176,857 $ (146,205 ) $ 30,652 Other (4) 22,711 — 22,711 (22,711 ) — Total $ 335,293 $ (135,725 ) $ 199,568 $ (168,916 ) $ 30,652 (1) Includes activity where uncertainty exists as to the enforceability of certain master netting agreements under bankruptcy laws in some countries or industries. (2) Includes securities collateral received or pledged under repurchase or securities lending agreements where there is a legally enforceable master netting agreement. These amounts are not offset on the Consolidated Balance Sheet, but are shown as a reduction to derive a net asset or liability. Securities collateral received or pledged where the legal enforceability of the master netting agreements is uncertain is excluded from the table. (3) Excludes repurchase activity of $11.5 billion and $10.2 billion reported in loans and leases on the Consolidated Balance Sheet at June 30, 2018 and December 31, 2017 . (4) Balance is reported in accrued expenses and other liabilities on the Consolidated Balance Sheet and relates to transactions where the Corporation acts as the lender in a securities lending agreement and receives securities that can be pledged as collateral or sold. In these transactions, the Corporation recognizes an asset at fair value, representing the securities received, and a liability, representing the obligation to return those securities.

Commitments and Contingencies (

Commitments and Contingencies (Tables)	6 Months Ended
	Jun. 30, 2018
Commitments and Contingencies Disclosure [Abstract]
Schedule of Credit Extension Commitment Expirations	The following table also includes the notional amount of commitments of $3.4 billion and $4.8 billion at June 30, 2018 and December 31, 2017 that are accounted for under the fair value option. However, the following table excludes cumulative net fair value of $114 million and $120 million at June 30, 2018 and December 31, 2017 on these commitments, which is classified in accrued expenses and other liabilities. For more information regarding the Corporation’s loan commitments accounted for under the fair value option, see Note 15 – Fair Value Option . Credit Extension Commitments Expire in One Expire After One Expire After Three Years Through Five Years Expire After Five Years Total (Dollars in millions) June 30, 2018 Notional amount of credit extension commitments Loan commitments $ 85,580 $ 147,418 $ 151,105 $ 20,103 $ 404,206 Home equity lines of credit 3,862 3,048 2,717 33,805 43,432 Standby letters of credit and financial guarantees (1) 20,794 10,190 2,537 627 34,148 Letters of credit 1,378 164 168 50 1,760 Legally binding commitments 111,614 160,820 156,527 54,585 483,546 Credit card lines (2) 370,646 — — — 370,646 Total credit extension commitments $ 482,260 $ 160,820 $ 156,527 $ 54,585 $ 854,192 December 31, 2017 Notional amount of credit extension commitments Loan commitments $ 85,804 $ 140,942 $ 147,043 $ 21,342 $ 395,131 Home equity lines of credit 6,172 4,457 2,288 31,250 44,167 Standby letters of credit and financial guarantees (1) 19,976 11,261 3,420 1,144 35,801 Letters of credit 1,291 117 129 87 1,624 Legally binding commitments 113,243 156,777 152,880 53,823 476,723 Credit card lines (2) 362,030 — — — 362,030 Total credit extension commitments $ 475,273 $ 156,777 $ 152,880 $ 53,823 $ 838,753 (1) The notional amounts of SBLCs and financial guarantees classified as investment grade and non-investment grade based on the credit quality of the underlying reference name within the instrument were $26.3 billion and $7.4 billion at June 30, 2018 , and $27.3 billion and $8.1 billion at December 31, 2017 . Amounts in the table include consumer SBLCs of $401 million and $421 million at June 30, 2018 and December 31, 2017 . (2) Includes business card unused lines of credit.

Shareholders' Equity (Tables)

Shareholders' Equity (Tables)	6 Months Ended
	Jun. 30, 2018
Equity [Abstract]
Schedule of Dividends	Declared Quarterly Cash Dividends on Common Stock (1) Declaration Date Record Date Payment Date Dividend Per Share July 26, 2018 September 7, 2018 September 28, 2018 $ 0.15 April 25, 2018 June 1, 2018 June 29, 2018 0.12 January 31, 2018 March 2, 2018 March 30, 2018 0.12 (1) In 2018 , and through July 30, 2018 .

Accumulated Other Comprehensi36

Accumulated Other Comprehensive Income (Loss) (Tables)	6 Months Ended
	Jun. 30, 2018
Equity [Abstract]
Schedule of Accumulated OCI	The table below presents the changes in accumulated OCI after-tax for the six months ended June 30, 2018 and 2017 . (Dollars in millions) Debt and Equity Securities Debit Valuation Adjustments Derivatives Employee Benefit Plans Foreign Currency Total Balance, December 31, 2016 $ (1,267 ) $ (767 ) $ (895 ) $ (3,480 ) $ (879 ) $ (7,288 ) Net change 469 (69 ) 132 54 97 683 Balance, June 30, 2017 $ (798 ) $ (836 ) $ (763 ) $ (3,426 ) $ (782 ) $ (6,605 ) Balance, December 31, 2017 $ (1,206 ) $ (1,060 ) $ (831 ) $ (3,192 ) $ (793 ) $ (7,082 ) Accounting change related to certain tax effects (1) (393 ) (220 ) (189 ) (707 ) 239 (1,270 ) Cumulative adjustment for hedge accounting change (2) — — 57 — — 57 Net change (4,994 ) 452 (367 ) 60 (189 ) (5,038 ) Balance, June 30, 2018 $ (6,593 ) $ (828 ) $ (1,330 ) $ (3,839 ) $ (743 ) $ (13,333 )
Schedule of Amounts Recognized in Other Comprehensive Income (Loss)	The table below presents the net change in fair value recorded in accumulated OCI, net realized gains and losses reclassified into earnings and other changes for each component of OCI pre- and after-tax for the six months ended June 30, 2018 and 2017 . Changes in OCI Components Pre- and After-tax Pretax Tax effect After- tax Pretax Tax effect After- tax Six Months Ended June 30 (Dollars in millions) 2018 2017 Debt and equity securities: Net increase (decrease) in fair value $ (6,700 ) $ 1,702 $ (4,998 ) $ 885 $ (330 ) $ 555 Net realized (gains) losses reclassified into earnings (3) 8 (4 ) 4 (140 ) 54 (86 ) Net change (6,692 ) 1,698 (4,994 ) 745 (276 ) 469 Debit valuation adjustments: Net increase (decrease) in fair value 576 (138 ) 438 (111 ) 33 (78 ) Net realized losses reclassified into earnings (3) 18 (4 ) 14 14 (5 ) 9 Net change 594 (142 ) 452 (97 ) 28 (69 ) Derivatives: Net increase (decrease) in fair value (578 ) 169 (409 ) 61 (22 ) 39 Reclassifications into earnings: Net interest income 83 (21 ) 62 220 (83 ) 137 Personnel expense (27 ) 7 (20 ) (71 ) 27 (44 ) Net realized losses reclassified into earnings 56 (14 ) 42 149 (56 ) 93 Net change (522 ) 155 (367 ) 210 (78 ) 132 Employee benefit plans: Reclassifications into earnings: Net actuarial losses and other 78 (18 ) 60 85 (31 ) 54 Net realized losses reclassified into earnings (4) 78 (18 ) 60 85 (31 ) 54 Net change 78 (18 ) 60 85 (31 ) 54 Foreign currency: Net increase (decrease) in fair value (50 ) (138 ) (188 ) (332 ) 336 4 Net realized (gains) losses reclassified into earnings (3) — (1 ) (1 ) (612 ) 705 93 Net change (50 ) (139 ) (189 ) (944 ) 1,041 97 Total other comprehensive income (loss) $ (6,592 ) $ 1,554 $ (5,038 ) $ (1 ) $ 684 $ 683 (1) Effective January 1, 2018, the Corporation adopted the accounting standard on tax effects in accumulated OCI related to the Tax Act. Accordingly, certain tax effects were reclassified from accumulated OCI to retained earnings. For additional information, see Note 1 – Summary of Significant Accounting Principles . (2) Reflects the Corporation’s adoption of the hedge accounting standard. For additional information, see Note 1 – Summary of Significant Accounting Principles . (3) Reclassifications of pretax debt and equity securities, DVA and foreign currency (gains) losses are recorded in other income in the Consolidated Statement of Income. (4) Reclassifications of pretax employee benefit plan costs are recorded in other general operating expense in the Consolidated Statement of Income.

Earnings Per Common Share (Tabl

Earnings Per Common Share (Tables)	6 Months Ended
	Jun. 30, 2018
Earnings Per Share [Abstract]
Calculation of earnings per common share and diluted earnings per common share	The calculation of earnings per common share (EPS) and diluted EPS for the three and six months ended June 30, 2018 and 2017 is presented below. For more information on the calculation of EPS, see Note 1 – Summary of Significant Accounting Principles to the Consolidated Financial Statements of the Corporation’s 2017 Annual Report on Form 10-K . Three Months Ended June 30 Six Months Ended June 30 (In millions, except per share information) 2018 2017 2018 2017 Earnings per common share Net income $ 6,784 $ 5,106 $ 13,702 $ 10,443 Preferred stock dividends (318 ) (361 ) (746 ) (863 ) Net income applicable to common shareholders $ 6,466 $ 4,745 $ 12,956 $ 9,580 Average common shares issued and outstanding 10,181.7 10,013.5 10,251.7 10,056.1 Earnings per common share $ 0.64 $ 0.47 $ 1.26 $ 0.95 Diluted earnings per common share Net income applicable to common shareholders $ 6,466 $ 4,745 $ 12,956 $ 9,580 Add preferred stock dividends due to assumed conversions (1) — 75 — 150 Net income allocated to common shareholders $ 6,466 $ 4,820 $ 12,956 $ 9,730 Average common shares issued and outstanding 10,181.7 10,013.5 10,251.7 10,056.1 Dilutive potential common shares (2) 127.7 821.3 138.2 820.6 Total diluted average common shares issued and outstanding 10,309.4 10,834.8 10,389.9 10,876.7 Diluted earnings per common share $ 0.63 $ 0.44 $ 1.25 $ 0.89 (1) Represents the Series T dividends under the “if-converted” method prior to conversion. (2) Includes incremental dilutive shares from restricted stock units, restricted stock and warrants.

Fair Value Measurements (Tables

Fair Value Measurements (Tables)	6 Months Ended
	Jun. 30, 2018
Fair Value Disclosures [Abstract]
Assets and Liabilities Carried at Fair Value on a Recurring Basis	Assets and liabilities carried at fair value on a recurring basis at June 30, 2018 and December 31, 2017 , including financial instruments which the Corporation accounts for under the fair value option, are summarized in the following tables. June 30, 2018 Fair Value Measurements (Dollars in millions) Level 1 Level 2 Level 3 Netting Adjustments (1) Assets/Liabilities at Fair Value Assets Federal funds sold and securities borrowed or purchased under agreements to resell $ — $ 59,763 $ — $ — $ 59,763 Trading account assets: U.S. Treasury and agency securities (2) 32,923 747 — — 33,670 Corporate securities, trading loans and other — 29,280 1,638 — 30,918 Equity securities (3) 55,128 25,075 228 — 80,431 Non-U.S. sovereign debt 9,646 19,434 368 — 29,448 Mortgage trading loans, MBS and ABS: U.S. government-sponsored agency guaranteed (2) — 19,341 — — 19,341 Mortgage trading loans, ABS and other MBS — 8,089 1,523 — 9,612 Total trading account assets (4) 97,697 101,966 3,757 — 203,420 Derivative assets (3) 8,951 347,112 4,511 (315,364 ) 45,210 AFS debt securities: U.S. Treasury and agency securities 51,173 1,561 — — 52,734 Mortgage-backed securities: Agency — 157,000 — — 157,000 Agency-collateralized mortgage obligations — 6,035 — — 6,035 Non-agency residential — 2,081 453 — 2,534 Commercial — 13,600 — — 13,600 Non-U.S. securities 747 5,915 3 — 6,665 Other taxable securities — 4,387 99 — 4,486 Tax-exempt securities — 19,064 1 — 19,065 Total AFS debt securities 51,920 209,643 556 — 262,119 Other debt securities carried at fair value: Mortgage-backed securities: Non-agency residential — 2,248 287 — 2,535 Non-U.S. securities 9,097 1,303 — — 10,400 Other taxable securities — 202 — — 202 Total other debt securities carried at fair value 9,097 3,753 287 — 13,137 Loans and leases — 5,734 493 — 6,227 Loans held-for-sale — 2,268 577 — 2,845 Other assets (5) 16,861 1,838 3,184 — 21,883 Total assets $ 184,526 $ 732,077 $ 13,365 $ (315,364 ) $ 614,604 Liabilities Interest-bearing deposits in U.S. offices $ — $ 513 $ — $ — $ 513 Federal funds purchased and securities loaned or sold under agreements to repurchase — 32,724 — — 32,724 Trading account liabilities: U.S. Treasury and agency securities 13,783 508 — — 14,291 Equity securities (3) 37,221 3,966 — — 41,187 Non-U.S. sovereign debt 12,943 10,754 — — 23,697 Corporate securities and other — 7,818 35 — 7,853 Total trading account liabilities 63,947 23,046 35 — 87,028 Derivative liabilities (3) 8,058 329,685 6,099 (310,237 ) 33,605 Short-term borrowings — 3,396 — — 3,396 Accrued expenses and other liabilities 19,159 2,019 — — 21,178 Long-term debt — 27,152 1,225 — 28,377 Total liabilities $ 91,164 $ 418,535 $ 7,359 $ (310,237 ) $ 206,821 (1) Amounts represent the impact of legally enforceable master netting agreements and also cash collateral held or placed with the same counterparties. (2) Includes $20.0 billion of GSE obligations. (3) During the six months ended June 30, 2018 , for trading account assets and liabilities, $6.2 billion of equity securities assets and $2.7 billion of equity securities liabilities were transferred from Level 1 to Level 2 and $5.3 billion of equity securities assets and $2.4 billion of equity securities liabilities were transferred from Level 2 to Level 1 based on the liquidity of the positions. In addition, $967 million of derivative assets and $413 million of derivative liabilities were transferred from Level 1 to Level 2 and $1.5 billion of derivative assets and $1.0 billion of derivative liabilities were transferred from Level 2 to Level 1 based on the observability of inputs used to measure fair value. For further disaggregation of derivative assets and liabilities, see Note 3 – Derivatives . (4) Includes securities with a fair value of $13.1 billion that were segregated in compliance with securities regulations or deposited with clearing organizations. This amount is included in the parenthetical disclosure on the Consolidated Balance Sheet. (5) Includes MSRs of $2.2 billion . December 31, 2017 Fair Value Measurements (Dollars in millions) Level 1 Level 2 Level 3 Netting Adjustments (1) Assets/Liabilities at Fair Value Assets Federal funds sold and securities borrowed or purchased under agreements to resell $ — $ 52,906 $ — $ — $ 52,906 Trading account assets: U.S. Treasury and agency securities (2, 3) 38,720 1,922 — — 40,642 Corporate securities, trading loans and other — 28,714 1,864 — 30,578 Equity securities (3) 60,747 23,958 235 — 84,940 Non-U.S. sovereign debt (3) 6,545 15,839 556 — 22,940 Mortgage trading loans, MBS and ABS: U.S. government-sponsored agency guaranteed (2) — 20,586 — — 20,586 Mortgage trading loans, ABS and other MBS — 8,174 1,498 — 9,672 Total trading account assets (4) 106,012 99,193 4,153 — 209,358 Derivative assets (3) 6,305 341,178 4,067 (313,788 ) 37,762 AFS debt securities: U.S. Treasury and agency securities 51,915 1,608 — — 53,523 Mortgage-backed securities: Agency — 192,929 — — 192,929 Agency-collateralized mortgage obligations — 6,804 — — 6,804 Non-agency residential — 2,669 — — 2,669 Commercial — 13,684 — — 13,684 Non-U.S. securities 772 5,880 25 — 6,677 Other taxable securities — 5,261 509 — 5,770 Tax-exempt securities — 20,106 469 — 20,575 Total AFS debt securities 52,687 248,941 1,003 — 302,631 Other debt securities carried at fair value: Mortgage-backed securities: Agency-collateralized mortgage obligations — 5 — — 5 Non-agency residential — 2,764 — — 2,764 Non-U.S. securities 8,191 1,297 — — 9,488 Other taxable securities — 229 — — 229 Total other debt securities carried at fair value 8,191 4,295 — — 12,486 Loans and leases — 5,139 571 — 5,710 Loans held-for-sale — 1,466 690 — 2,156 Other assets (5) 19,367 789 2,425 — 22,581 Total assets $ 192,562 $ 753,907 $ 12,909 $ (313,788 ) $ 645,590 Liabilities Interest-bearing deposits in U.S. offices $ — $ 449 $ — $ — $ 449 Federal funds purchased and securities loaned or sold under agreements to repurchase — 36,182 — — 36,182 Trading account liabilities: U.S. Treasury and agency securities 17,266 734 — — 18,000 Equity securities (3) 33,019 3,885 — — 36,904 Non-U.S. sovereign debt (3) 11,976 7,382 — — 19,358 Corporate securities and other — 6,901 24 — 6,925 Total trading account liabilities 62,261 18,902 24 — 81,187 Derivative liabilities (3) 6,029 334,261 5,781 (311,771 ) 34,300 Short-term borrowings — 1,494 — — 1,494 Accrued expenses and other liabilities 21,887 945 8 — 22,840 Long-term debt — 29,923 1,863 — 31,786 Total liabilities $ 90,177 $ 422,156 $ 7,676 $ (311,771 ) $ 208,238 (1) Amounts represent the impact of legally enforceable master netting agreements and also cash collateral held or placed with the same counterparties. (2) Includes $21.3 billion of GSE obligations. (3) During 2017 , for trading account assets and liabilities, $1.1 billion of U.S. Treasury and agency securities assets, $5.3 billion of equity securities assets, $3.1 billion of equity securities liabilities, $3.3 billion of non-U.S. sovereign debt assets and $1.5 billion of non-U.S. sovereign debt liabilities were transferred from Level 1 to Level 2 based on the liquidity of the positions. In addition, $14.1 billion of equity securities assets and $4.3 billion of equity securities liabilities were transferred from Level 2 to Level 1. Also in 2017 , $4.2 billion of derivative assets and $3.0 billion of derivative liabilities were transferred from Level 1 to Level 2 and $758 million of derivative assets and $608 million of derivative liabilities were transferred from Level 2 to Level 1 based on the observability of inputs used to measure fair value. For further disaggregation of derivative assets and liabilities, see Note 3 – Derivatives . (4) Includes securities with a fair value of $16.8 billion that were segregated in compliance with securities regulations or deposited with clearing organizations. This amount is included in the parenthetical disclosure on the Consolidated Balance Sheet. (5) Includes MSRs of $2.3 billion .
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation	m debt. Level 3 – Fair Value Measurements for the Six Months Ended June 30, 2017 (1) Balance 2017 Total Realized/Unrealized Gains (Losses) (2) Gains (3) Gross Gross Level 3 Gross Level 3 Balance Change in Unrealized Gains (Losses) Related to Financial Instruments Still Held (2) (Dollars in millions) Purchases Sales Issuances Settlements Trading account assets: Corporate securities, trading loans and other $ 2,777 $ 148 $ — $ 318 $ (600 ) $ — $ (235 ) $ 218 $ (849 ) $ 1,777 $ 57 Equity securities 281 15 — 42 (64 ) — (10 ) 102 (137 ) 229 (1 ) Non-U.S. sovereign debt 510 31 (6 ) 26 (59 ) — (68 ) 72 — 506 27 Mortgage trading loans, ABS and other MBS 1,211 185 (1 ) 597 (689 ) — (123 ) 104 (52 ) 1,232 117 Total trading account assets 4,779 379 (7 ) 983 (1,412 ) — (436 ) 496 (1,038 ) 3,744 200 Net derivative assets (4) (1,313 ) (846 ) — 408 (476 ) — 444 29 (49 ) (1,803 ) (773 ) AFS debt securities: Non-U.S. securities 229 1 12 42 — — (145 ) — — 139 — Other taxable securities 594 3 5 5 — — (30 ) — (94 ) 483 — Tax-exempt securities 542 — — — (56 ) — (3 ) 35 — 518 — Total AFS debt securities 1,365 4 17 47 (56 ) — (178 ) 35 (94 ) 1,140 — Other debt securities carried at fair value – Non-agency residential MBS 25 (1 ) — — — — (1 ) — — 23 — Loans and leases (5, 6) 720 18 — — — — (64 ) — (7 ) 667 16 Loans held-for-sale (5) 656 71 (3 ) 2 (155 ) — (188 ) 415 (32 ) 766 71 Other assets (6, 7) 2,986 (31 ) 12 2 6 138 (382 ) 64 — 2,795 (194 ) Federal funds purchased and securities loaned or sold under agreements to repurchase (5) (359 ) (5 ) — — — (12 ) 36 (58 ) 263 (135 ) (3 ) Trading account liabilities – Corporate securities and other (27 ) 12 — 4 (10 ) (1 ) — — — (22 ) (1 ) Accrued expenses and other liabilities (5) (9 ) — — — — — — — — (9 ) — Long-term debt (5) (1,514 ) (73 ) (11 ) 18 — (150 ) 283 (286 ) 87 (1,646 ) (38 ) (1) Assets (liabilities). For assets, increase (decrease) to Level 3 and for liabilities, (increase) decrease to Level 3. (2) Includes gains (losses) reported in earnings in the following income statement line items: Trading account assets/liabilities - predominantly trading account profits; Net derivative assets - primarily trading account profits and other income; Loans held-for-sale - other income; Other assets - primarily other income related to MSRs; Long-term debt - primarily trading account profits. For MSRs, the amounts reflect the changes in modeled MSR fair value due to observed changes in interest rates, volatility, spreads and the shape of the forward swap curve, and periodic adjustments to the valuation model to reflect changes in the modeled relationships between inputs and projected cash flows, as well as changes in cash flow assumptions including cost to service. (3) Includes unrealized gains (losses) in OCI on AFS debt securities, foreign currency translation adjustments and the impact of changes in the Corporation’s credit spreads on long-term debt accounted for under the fair value option. For additional information, see Note 1 – Summary of Significant Accounting Principles to the Consolidated Financial Statements of the Corporation’s 2017 Annual Report on Form 10-K . (4) Net derivative assets include derivative assets of $4.0 billion and derivative liabilities of $5.8 billion . (5) Amounts represent instruments that are accounted for under the fair value option. (6) Issuances represent loan originations and MSRs recognized following securitizations or whole-loan sales. (7) Settlements primarily represent the net change in fair value of the MSR asset due to the recognition of modeled cash flows and the passage The following tables present a reconciliation of all assets and liabilities measured at fair value on a recurring basis using significant unobservable inputs (Level 3) during the three and six months ended June 30, 2018 and 2017 , including net realized and unrealized gains (losses) included in earnings and accumulated OCI. Level 3 – Fair Value Measurements for the Three Months Ended June 30, 2018 (1) Balance April 1 2018 Total Realized/Unrealized Gains (Losses) (2) Gains (3) Gross Gross Level 3 Gross Level 3 Balance Change in Unrealized Gains (Losses) Related to Financial Instruments Still Held (2) (Dollars in millions) Purchases Sales Issuances Settlements Trading account assets: Corporate securities, trading loans and other $ 1,716 $ (37 ) $ (1 ) $ 81 $ (75 ) $ — $ (74 ) $ 145 $ (117 ) $ 1,638 $ (67 ) Equity securities 212 1 — 2 (4 ) — (4 ) 29 (8 ) 228 (3 ) Non-U.S. sovereign debt 401 13 (44 ) 7 — — — 8 (17 ) 368 13 Mortgage trading loans, ABS and other MBS 1,372 42 — 192 (256 ) — (38 ) 256 (45 ) 1,523 32 Total trading account assets 3,701 19 (45 ) 282 (335 ) — (116 ) 438 (187 ) 3,757 (25 ) Net derivative assets (4) (1,138 ) (239 ) — 195 (591 ) — 175 (4 ) 14 (1,588 ) (251 ) AFS debt securities: Non-agency residential MBS — 8 (14 ) — — — — 459 — 453 — Non-U.S. securities 23 — (1 ) — (10 ) — (12 ) 3 — 3 — Other taxable securities 43 1 (2 ) — — — (3 ) 60 — 99 — Tax-exempt securities — — — — — — — 1 — 1 — Total AFS debt securities 66 9 (17 ) — (10 ) — (15 ) 523 — 556 — Other debt securities carried at fair value – Non-agency residential MBS — (4 ) — — (7 ) — — 298 — 287 5 Loans and leases (5, 6) 526 (4 ) — — (5 ) — (24 ) — — 493 (4 ) Loans held-for-sale (5) 685 (12 ) (27 ) — — — (37 ) — (32 ) 577 (16 ) Other assets (6, 7) 3,295 76 — 2 (8 ) 23 (169 ) — (35 ) 3,184 8 Trading account liabilities – Corporate securities and other (26 ) 1 — — (9 ) (1 ) — — — (35 ) 1 Accrued expenses and other liabilities (5) (8 ) — — — — — 8 — — — — Long-term debt (5) (1,351 ) 63 2 4 — (53 ) 151 (114 ) 73 (1,225 ) 66 (1) Assets (liabilities). For assets, increase (decrease) to Level 3 and for liabilities, (increase) decrease to Level 3. (2) Includes gains (losses) reported in earnings in the following income statement line items: Trading account assets/liabilities - predominantly trading account profits; Net derivative assets - primarily trading account profits and other income; Loans held-for-sale - other income; Other assets - primarily other income related to MSRs; Long-term debt - trading account profits. For MSRs, the amounts reflect the changes in modeled MSR fair value due to observed changes in interest rates, volatility, spreads and the shape of the forward swap curve, and periodic adjustments to the valuation model to reflect changes in the modeled relationships between inputs and projected cash flows, as well as changes in cash flow assumptions including cost to service. (3) Includes unrealized gains (losses) in OCI on AFS debt securities, foreign currency translation adjustments and the impact of changes in the Corporation’s credit spreads on long-term debt accounted for under the fair value option. For additional information, see Note 1 – Summary of Significant Accounting Principles to the Consolidated Financial Statements of the Corporation’s 2017 Annual Report on Form 10-K . (4) Net derivative assets include derivative assets of $4.5 billion and derivative liabilities of $6.1 billion . (5) Amounts represent instruments that are accounted for under the fair value option. (6) Issuances represent loan originations and MSRs recognized following securitizations or whole-loan sales. (7) Settlements primarily represent the net change in fair value of the MSR asset due to the recognition of modeled cash flows and the passage of time. Transfers into Level 3, primarily due to decreased price observability, during the three months ended June 30, 2018 included $438 million of trading account assets, $523 million of AFS debt securities, $298 million of other debt securities carried at fair value and $114 million of long-term debt. Transfers occur on a regular basis for long-term debt instruments due to changes in the impact of unobservable inputs on the value of the embedded derivative in relation to the instrument as a whole. Transfers out of Level 3, primarily due to increased price observability, during the three months ended June 30, 2018 included $187 million of trading account assets. Level 3 – Fair Value Measurements for the Three Months Ended June 30, 2017 (1) Balance 2017 Total Realized/Unrealized Gains (Losses) (2) Gains (3) Gross Gross Level 3 Gross Level 3 Balance 2017 Change in Unrealized Gains (Losses) Related to Financial Instruments Still Held (2) (Dollars in millions) Purchases Sales Issuances Settlements Trading account assets: Corporate securities, trading loans and other $ 2,029 $ 64 $ — $ 119 $ (120 ) $ — $ (108 ) $ 143 $ (350 ) $ 1,777 $ 30 Equity securities 288 3 — 22 (47 ) — — 30 (67 ) 229 — Non-U.S. sovereign debt 527 12 (16 ) 26 (50 ) — (62 ) 69 — 506 12 Mortgage trading loans, ABS and other MBS 1,215 78 (1 ) 258 (314 ) — (69 ) 76 (11 ) 1,232 53 Total trading account assets 4,059 157 (17 ) 425 (531 ) — (239 ) 318 (428 ) 3,744 95 Net derivative assets (4) (1,665 ) (372 ) — 208 (229 ) — 274 — (19 ) (1,803 ) (368 ) AFS debt securities: Non-U.S. securities 207 1 9 22 — — (100 ) — — 139 — Other taxable securities 579 — 1 5 — — (8 ) — (94 ) 483 — Tax-exempt securities 520 — (2 ) — — — — — — 518 — Total AFS debt securities 1,306 1 8 27 — — (108 ) — (94 ) 1,140 — Other debt securities carried at fair value – Non-agency residential MBS 24 — — — — — (1 ) — — 23 — Loans and leases (5, 6) 702 6 — — — — (34 ) — (7 ) 667 6 Loans held-for-sale (5) 792 42 (9 ) 2 (19 ) — (128 ) 100 (14 ) 766 26 Other assets (6, 7) 2,841 2 12 2 1 63 (190 ) 64 — 2,795 (71 ) Federal funds purchased and securities loaned or sold under agreements to repurchase (5) (226 ) (6 ) — — — (10 ) 8 (58 ) 157 (135 ) (6 ) Trading account liabilities – Corporate securities and other (35 ) 10 — 4 — (1 ) — — — (22 ) (1 ) Accrued expenses and other liabilities (5) (9 ) — — — — — — — — (9 ) — Long-term debt (5) (1,660 ) 10 (18 ) 7 — (20 ) 124 (108 ) 19 (1,646 ) 10 (1) Assets (liabilities). For assets, increase (decrease) to Level 3 and for liabilities, (increase) decrease to Level 3. (2) Includes gains (losses) reported in earnings in the following income statement line items: Trading account assets/liabilities - predominantly trading account profits; Net derivative assets - primarily trading account profits and other income; Loans held-for-sale - other income; Other assets - primarily other income related to MSRs; Long-term debt - trading account profits. For MSRs, the amounts reflect the changes in modeled MSR fair value due to observed changes in interest rates, volatility, spreads and the shape of the forward swap curve, and periodic adjustments to the valuation model to reflect changes in the modeled relationships between inputs and projected cash flows, as well as changes in cash flow assumptions including cost to service. (3) Includes unrealized gains (losses) in OCI on AFS debt securities, foreign currency translation adjustments and the impact of changes in the Corporation’s credit spreads on long-term debt accounted for under the fair value option. For additional information, see Note 1 – Summary of Significant Accounting Principles to the Consolidated Financial Statements of the Corporation’s 2017 Annual Report on Form 10-K . (4) Net derivative assets include derivative assets of $4.0 billion and derivative liabilities of $5.8 billion . (5) Amounts represent instruments that are accounted for under the fair value option. (6) Issuances represent loan originations and MSRs recognized following securitizations or whole-loan sales. (7) Settlements primarily represent the net change in fair value of the MSR asset due to the recognition of modeled cash flows and the passage of time. Transfers into Level 3, primarily due to decreased price observability, during the three months ended June 30, 2017 included $318 million of trading account assets, $100 million of LHFS and $108 million of long-term debt. Transfers occur on a regular basis for long-term debt instruments due to changes in the impact of unobservable inputs on the value of the embedded derivative in relation to the instrument as a whole. Transfers out of Level 3, primarily due to increased price observability, during the three months ended June 30, 2017 included $428 million of trading account assets and $157 million of federal funds purchased and securities loaned or sold under agreements to repurchase. Level 3 – Fair Value Measurements for the Six Months Ended June 30, 2018 (1) (Dollars in millions) Balance January 1 2018 Total Realized/Unrealized Gains (Losses) (2) Gains (3) Gross Gross Level 3 Gross Level 3 Balance Change in Unrealized Gains (Losses) Related to Financial Instruments Still Held (2) Purchases Sales Issuances Settlements Trading account assets: Corporate securities, trading loans and other $ 1,864 $ (28 ) $ (1 ) $ 274 $ (211 ) $ — $ (213 ) $ 248 $ (295 ) $ 1,638 $ (76 ) Equity securities 235 9 — 8 (11 ) — (4 ) 30 (39 ) 228 9 Non-U.S. sovereign debt 556 29 (42 ) 7 (50 ) — (8 ) 8 (132 ) 368 28 Mortgage trading loans, ABS and other MBS 1,498 141 3 317 (576 ) — (107 ) 350 (103 ) 1,523 81 Total trading account assets 4,153 151 (40 ) 606 (848 ) — (332 ) 636 (569 ) 3,757 42 Net derivative assets (4) (1,714 ) 256 — 348 (853 ) — 377 67 (69 ) (1,588 ) 325 AFS debt securities: Non-agency residential MBS — 8 (14 ) — — — — 459 — 453 — Non-U.S. securities 25 — (1 ) — (10 ) — (14 ) 3 — 3 — Other taxable securities 509 2 (2 ) — — — (10 ) 60 (460 ) 99 — Tax-exempt securities 469 — — — — — — 1 (469 ) 1 — Total AFS debt securities (5) 1,003 10 (17 ) — (10 ) — (24 ) 523 (929 ) 556 — Other debt securities carried at fair value – Non-agency residential MBS — (4 ) — — (7 ) — — 298 — 287 5 Loans and leases (6, 7) 571 (20 ) — — (9 ) — (49 ) — — 493 (19 ) Loans held-for-sale (6) 690 12 (27 ) 12 — — (78 ) — (32 ) 577 5 Other assets (5, 7, 8) 2,425 268 — 2 (46 ) 52 (411 ) 929 (35 ) 3,184 145 Trading account liabilities – Corporate securities and other (24 ) 2 — — (11 ) (2 ) — — — (35 ) 1 Accrued expenses and other liabilities (6) (8 ) — — — — — 8 — — — — Long-term debt (6) (1,863 ) 86 3 9 — (120 ) 323 (147 ) 484 (1,225 ) 51 (1) Assets (liabilities). For assets, increase (decrease) to Level 3 and for liabilities, (increase) decrease to Level 3. (2) Includes gains (losses) reported in earnings in the following income statement line items: Trading account assets/liabilities - predominantly trading account profits; Net derivative assets - primarily trading account profits and other income; Loans held-for-sale - other income; Other assets - primarily other income related to MSRs; Long-term debt - primarily trading account profits. For MSRs, the amounts reflect the changes in modeled MSR fair value due to observed changes in interest rates, volatility, spreads and the shape of the forward swap curve, and periodic adjustments to the valuation model to reflect changes in the modeled relationships between inputs and projected cash flows, as well as changes in cash flow assumptions including cost to service. (3) Includes unrealized gains (losses) in OCI on AFS debt securities, foreign currency translation adjustments and the impact of changes in the Corporation’s credit spreads on long-term debt accounted for under the fair value option. For additional information, see Note 1 – Summary of Significant Accounting Principles to the Consolidated Financial Statements of the Corporation’s 2017 Annual Report on Form 10-K . (4) Net derivative assets include derivative assets of $4.5 billion and derivative liabilities of $6.1 billion . (5) Transfer relates to the reclassification of certain securities. (6) Amounts represent instruments that are accounted for under the fair value option. (7) Issuances represent loan originations and MSRs recognized following securitizations or whole-loan sales. (8) Settlements primarily represent the net change in fair value of the MSR asset due to the recognition of modeled cash flows and the passage
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation	The following tables present a reconciliation of all assets and liabilities measured at fair value on a recurring basis using significant unobservable inputs (Level 3) during the three and six months ended June 30, 2018 and 2017 , including net realized and unrealized gains (losses) included in earnings and accumulated OCI. Level 3 – Fair Value Measurements for the Three Months Ended June 30, 2018 (1) Balance April 1 2018 Total Realized/Unrealized Gains (Losses) (2) Gains (3) Gross Gross Level 3 Gross Level 3 Balance Change in Unrealized Gains (Losses) Related to Financial Instruments Still Held (2) (Dollars in millions) Purchases Sales Issuances Settlements Trading account assets: Corporate securities, trading loans and other $ 1,716 $ (37 ) $ (1 ) $ 81 $ (75 ) $ — $ (74 ) $ 145 $ (117 ) $ 1,638 $ (67 ) Equity securities 212 1 — 2 (4 ) — (4 ) 29 (8 ) 228 (3 ) Non-U.S. sovereign debt 401 13 (44 ) 7 — — — 8 (17 ) 368 13 Mortgage trading loans, ABS and other MBS 1,372 42 — 192 (256 ) — (38 ) 256 (45 ) 1,523 32 Total trading account assets 3,701 19 (45 ) 282 (335 ) — (116 ) 438 (187 ) 3,757 (25 ) Net derivative assets (4) (1,138 ) (239 ) — 195 (591 ) — 175 (4 ) 14 (1,588 ) (251 ) AFS debt securities: Non-agency residential MBS — 8 (14 ) — — — — 459 — 453 — Non-U.S. securities 23 — (1 ) — (10 ) — (12 ) 3 — 3 — Other taxable securities 43 1 (2 ) — — — (3 ) 60 — 99 — Tax-exempt securities — — — — — — — 1 — 1 — Total AFS debt securities 66 9 (17 ) — (10 ) — (15 ) 523 — 556 — Other debt securities carried at fair value – Non-agency residential MBS — (4 ) — — (7 ) — — 298 — 287 5 Loans and leases (5, 6) 526 (4 ) — — (5 ) — (24 ) — — 493 (4 ) Loans held-for-sale (5) 685 (12 ) (27 ) — — — (37 ) — (32 ) 577 (16 ) Other assets (6, 7) 3,295 76 — 2 (8 ) 23 (169 ) — (35 ) 3,184 8 Trading account liabilities – Corporate securities and other (26 ) 1 — — (9 ) (1 ) — — — (35 ) 1 Accrued expenses and other liabilities (5) (8 ) — — — — — 8 — — — — Long-term debt (5) (1,351 ) 63 2 4 — (53 ) 151 (114 ) 73 (1,225 ) 66 (1) Assets (liabilities). For assets, increase (decrease) to Level 3 and for liabilities, (increase) decrease to Level 3. (2) Includes gains (losses) reported in earnings in the following income statement line items: Trading account assets/liabilities - predominantly trading account profits; Net derivative assets - primarily trading account profits and other income; Loans held-for-sale - other income; Other assets - primarily other income related to MSRs; Long-term debt - trading account profits. For MSRs, the amounts reflect the changes in modeled MSR fair value due to observed changes in interest rates, volatility, spreads and the shape of the forward swap curve, and periodic adjustments to the valuation model to reflect changes in the modeled relationships between inputs and projected cash flows, as well as changes in cash flow assumptions including cost to service. (3) Includes unrealized gains (losses) in OCI on AFS debt securities, foreign currency translation adjustments and the impact of changes in the Corporation’s credit spreads on long-term debt accounted for under the fair value option. For additional information, see Note 1 – Summary of Significant Accounting Principles to the Consolidated Financial Statements of the Corporation’s 2017 Annual Report on Form 10-K . (4) Net derivative assets include derivative assets of $4.5 billion and derivative liabilities of $6.1 billion . (5) Amounts represent instruments that are accounted for under the fair value option. (6) Issuances represent loan originations and MSRs recognized following securitizations or whole-loan sales. (7) Settlements primarily represent the net change in fair value of the MSR asset due to the recognition of modeled cash flows and the passage of time. Transfers into Level 3, primarily due to decreased price observability, during the three months ended June 30, 2018 included $438 million of trading account assets, $523 million of AFS debt securities, $298 million of other debt securities carried at fair value and $114 million of long-term debt. Transfers occur on a regular basis for long-term debt instruments due to changes in the impact of unobservable inputs on the value of the embedded derivative in relation to the instrument as a whole. Transfers out of Level 3, primarily due to increased price observability, during the three months ended June 30, 2018 included $187 million of trading account assets. Level 3 – Fair Value Measurements for the Three Months Ended June 30, 2017 (1) Balance 2017 Total Realized/Unrealized Gains (Losses) (2) Gains (3) Gross Gross Level 3 Gross Level 3 Balance 2017 Change in Unrealized Gains (Losses) Related to Financial Instruments Still Held (2) (Dollars in millions) Purchases Sales Issuances Settlements Trading account assets: Corporate securities, trading loans and other $ 2,029 $ 64 $ — $ 119 $ (120 ) $ — $ (108 ) $ 143 $ (350 ) $ 1,777 $ 30 Equity securities 288 3 — 22 (47 ) — — 30 (67 ) 229 — Non-U.S. sovereign debt 527 12 (16 ) 26 (50 ) — (62 ) 69 — 506 12 Mortgage trading loans, ABS and other MBS 1,215 78 (1 ) 258 (314 ) — (69 ) 76 (11 ) 1,232 53 Total trading account assets 4,059 157 (17 ) 425 (531 ) — (239 ) 318 (428 ) 3,744 95 Net derivative assets (4) (1,665 ) (372 ) — 208 (229 ) — 274 — (19 ) (1,803 ) (368 ) AFS debt securities: Non-U.S. securities 207 1 9 22 — — (100 ) — — 139 — Other taxable securities 579 — 1 5 — — (8 ) — (94 ) 483 — Tax-exempt securities 520 — (2 ) — — — — — — 518 — Total AFS debt securities 1,306 1 8 27 — — (108 ) — (94 ) 1,140 — Other debt securities carried at fair value – Non-agency residential MBS 24 — — — — — (1 ) — — 23 — Loans and leases (5, 6) 702 6 — — — — (34 ) — (7 ) 667 6 Loans held-for-sale (5) 792 42 (9 ) 2 (19 ) — (128 ) 100 (14 ) 766 26 Other assets (6, 7) 2,841 2 12 2 1 63 (190 ) 64 — 2,795 (71 ) Federal funds purchased and securities loaned or sold under agreements to repurchase (5) (226 ) (6 ) — — — (10 ) 8 (58 ) 157 (135 ) (6 ) Trading account liabilities – Corporate securities and other (35 ) 10 — 4 — (1 ) — — — (22 ) (1 ) Accrued expenses and other liabilities (5) (9 ) — — — — — — — — (9 ) — Long-term debt (5) (1,660 ) 10 (18 ) 7 — (20 ) 124 (108 ) 19 (1,646 ) 10 (1) Assets (liabilities). For assets, increase (decrease) to Level 3 and for liabilities, (increase) decrease to Level 3. (2) Includes gains (losses) reported in earnings in the following income statement line items: Trading account assets/liabilities - predominantly trading account profits; Net derivative assets - primarily trading account profits and other income; Loans held-for-sale - other income; Other assets - primarily other income related to MSRs; Long-term debt - trading account profits. For MSRs, the amounts reflect the changes in modeled MSR fair value due to observed changes in interest rates, volatility, spreads and the shape of the forward swap curve, and periodic adjustments to the valuation model to reflect changes in the modeled relationships between inputs and projected cash flows, as well as changes in cash flow assumptions including cost to service. (3) Includes unrealized gains (losses) in OCI on AFS debt securities, foreign currency translation adjustments and the impact of changes in the Corporation’s credit spreads on long-term debt accounted for under the fair value option. For additional information, see Note 1 – Summary of Significant Accounting Principles to the Consolidated Financial Statements of the Corporation’s 2017 Annual Report on Form 10-K . (4) Net derivative assets include derivative assets of $4.0 billion and derivative liabilities of $5.8 billion . (5) Amounts represent instruments that are accounted for under the fair value option. (6) Issuances represent loan originations and MSRs recognized following securitizations or whole-loan sales. (7) Settlements primarily represent the net change in fair value of the MSR asset due to the recognition of modeled cash flows and the passage of time. Transfers into Level 3, primarily due to decreased price observability, during the three months ended June 30, 2017 included $318 million of trading account assets, $100 million of LHFS and $108 million of long-term debt. Transfers occur on a regular basis for long-term debt instruments due to changes in the impact of unobservable inputs on the value of the embedded derivative in relation to the instrument as a whole. Transfers out of Level 3, primarily due to increased price observability, during the three months ended June 30, 2017 included $428 million of trading account assets and $157 million of federal funds purchased and securities loaned or sold under agreements to repurchase. Level 3 – Fair Value Measurements for the Six Months Ended June 30, 2018 (1) (Dollars in millions) Balance January 1 2018 Total Realized/Unrealized Gains (Losses) (2) Gains (3) Gross Gross Level 3 Gross Level 3 Balance Change in Unrealized Gains (Losses) Related to Financial Instruments Still Held (2) Purchases Sales Issuances Settlements Trading account assets: Corporate securities, trading loans and other $ 1,864 $ (28 ) $ (1 ) $ 274 $ (211 ) $ — $ (213 ) $ 248 $ (295 ) $ 1,638 $ (76 ) Equity securities 235 9 — 8 (11 ) — (4 ) 30 (39 ) 228 9 Non-U.S. sovereign debt 556 29 (42 ) 7 (50 ) — (8 ) 8 (132 ) 368 28 Mortgage trading loans, ABS and other MBS 1,498 141 3 317 (576 ) — (107 ) 350 (103 ) 1,523 81 Total trading account assets 4,153 151 (40 ) 606 (848 ) — (332 ) 636 (569 ) 3,757 42 Net derivative assets (4) (1,714 ) 256 — 348 (853 ) — 377 67 (69 ) (1,588 ) 325 AFS debt securities: Non-agency residential MBS — 8 (14 ) — — — — 459 — 453 — Non-U.S. securities 25 — (1 ) — (10 ) — (14 ) 3 — 3 — Other taxable securities 509 2 (2 ) — — — (10 ) 60 (460 ) 99 — Tax-exempt securities 469 — — — — — — 1 (469 ) 1 — Total AFS debt securities (5) 1,003 10 (17 ) — (10 ) — (24 ) 523 (929 ) 556 — Other debt securities carried at fair value – Non-agency residential MBS — (4 ) — — (7 ) — — 298 — 287 5 Loans and leases (6, 7) 571 (20 ) — — (9 ) — (49 ) — — 493 (19 ) Loans held-for-sale (6) 690 12 (27 ) 12 — — (78 ) — (32 ) 577 5 Other assets (5, 7, 8) 2,425 268 — 2 (46 ) 52 (411 ) 929 (35 ) 3,184 145 Trading account liabilities – Corporate securities and other (24 ) 2 — — (11 ) (2 ) — — — (35 ) 1 Accrued expenses and other liabilities (6) (8 ) — — — — — 8 — — — — Long-term debt (6) (1,863 ) 86 3 9 — (120 ) 323 (147 ) 484 (1,225 ) 51 (1) Assets (liabilities). For assets, increase (decrease) to Level 3 and for liabilities, (increase) decrease to Level 3. (2) Includes gains (losses) reported in earnings in the following income statement line items: Trading account assets/liabilities - predominantly trading account profits; Net derivative assets - primarily trading account profits and other income; Loans held-for-sale - other income; Other assets - primarily other income related to MSRs; Long-term debt - primarily trading account profits. For MSRs, the amounts reflect the changes in modeled MSR fair value due to observed changes in interest rates, volatility, spreads and the shape of the forward swap curve, and periodic adjustments to the valuation model to reflect changes in the modeled relationships between inputs and projected cash flows, as well as changes in cash flow assumptions including cost to service. (3) Includes unrealized gains (losses) in OCI on AFS debt securities, foreign currency translation adjustments and the impact of changes in the Corporation’s credit spreads on long-term debt accounted for under the fair value option. For additional information, see Note 1 – Summary of Significant Accounting Principles to the Consolidated Financial Statements of the Corporation’s 2017 Annual Report on Form 10-K . (4) Net derivative assets include derivative assets of $4.5 billion and derivative liabilities of $6.1 billion . (5) Transfer relates to the reclassification of certain securities. (6) Amounts represent instruments that are accounted for under the fair value option. (7) Issuances represent loan originations and MSRs recognized following securitizations or whole-loan sales. (8) Settlements primarily represent the net change in fair value of the MSR asset due to the recognition of modeled cash flows and the passage m debt. Level 3 – Fair Value Measurements for the Six Months Ended June 30, 2017 (1) Balance 2017 Total Realized/Unrealized Gains (Losses) (2) Gains (3) Gross Gross Level 3 Gross Level 3 Balance Change in Unrealized Gains (Losses) Related to Financial Instruments Still Held (2) (Dollars in millions) Purchases Sales Issuances Settlements Trading account assets: Corporate securities, trading loans and other $ 2,777 $ 148 $ — $ 318 $ (600 ) $ — $ (235 ) $ 218 $ (849 ) $ 1,777 $ 57 Equity securities 281 15 — 42 (64 ) — (10 ) 102 (137 ) 229 (1 ) Non-U.S. sovereign debt 510 31 (6 ) 26 (59 ) — (68 ) 72 — 506 27 Mortgage trading loans, ABS and other MBS 1,211 185 (1 ) 597 (689 ) — (123 ) 104 (52 ) 1,232 117 Total trading account assets 4,779 379 (7 ) 983 (1,412 ) — (436 ) 496 (1,038 ) 3,744 200 Net derivative assets (4) (1,313 ) (846 ) — 408 (476 ) — 444 29 (49 ) (1,803 ) (773 ) AFS debt securities: Non-U.S. securities 229 1 12 42 — — (145 ) — — 139 — Other taxable securities 594 3 5 5 — — (30 ) — (94 ) 483 — Tax-exempt securities 542 — — — (56 ) — (3 ) 35 — 518 — Total AFS debt securities 1,365 4 17 47 (56 ) — (178 ) 35 (94 ) 1,140 — Other debt securities carried at fair value – Non-agency residential MBS 25 (1 ) — — — — (1 ) — — 23 — Loans and leases (5, 6) 720 18 — — — — (64 ) — (7 ) 667 16 Loans held-for-sale (5) 656 71 (3 ) 2 (155 ) — (188 ) 415 (32 ) 766 71 Other assets (6, 7) 2,986 (31 ) 12 2 6 138 (382 ) 64 — 2,795 (194 ) Federal funds purchased and securities loaned or sold under agreements to repurchase (5) (359 ) (5 ) — — — (12 ) 36 (58 ) 263 (135 ) (3 ) Trading account liabilities – Corporate securities and other (27 ) 12 — 4 (10 ) (1 ) — — — (22 ) (1 ) Accrued expenses and other liabilities (5) (9 ) — — — — — — — — (9 ) — Long-term debt (5) (1,514 ) (73 ) (11 ) 18 — (150 ) 283 (286 ) 87 (1,646 ) (38 ) (1) Assets (liabilities). For assets, increase (decrease) to Level 3 and for liabilities, (increase) decrease to Level 3. (2) Includes gains (losses) reported in earnings in the following income statement line items: Trading account assets/liabilities - predominantly trading account profits; Net derivative assets - primarily trading account profits and other income; Loans held-for-sale - other income; Other assets - primarily other income related to MSRs; Long-term debt - primarily trading account profits. For MSRs, the amounts reflect the changes in modeled MSR fair value due to observed changes in interest rates, volatility, spreads and the shape of the forward swap curve, and periodic adjustments to the valuation model to reflect changes in the modeled relationships between inputs and projected cash flows, as well as changes in cash flow assumptions including cost to service. (3) Includes unrealized gains (losses) in OCI on AFS debt securities, foreign currency translation adjustments and the impact of changes in the Corporation’s credit spreads on long-term debt accounted for under the fair value option. For additional information, see Note 1 – Summary of Significant Accounting Principles to the Consolidated Financial Statements of the Corporation’s 2017 Annual Report on Form 10-K . (4) Net derivative assets include derivative assets of $4.0 billion and derivative liabilities of $5.8 billion . (5) Amounts represent instruments that are accounted for under the fair value option. (6) Issuances represent loan originations and MSRs recognized following securitizations or whole-loan sales. (7) Settlements primarily represent the net change in fair value of the MSR asset due to the recognition of modeled cash flows and the passage
Fair Value Inputs, Assets, Quantitative Information	The following tables present information about significant unobservable inputs related to the Corporation’s material categories of Level 3 financial assets and liabilities at June 30, 2018 and December 31, 2017 . Quantitative Information about Level 3 Fair Value Measurements at June 30, 2018 (Dollars in millions) Inputs Financial Instrument Fair Value Valuation Technique Significant Unobservable Inputs Ranges of Inputs Weighted Average Loans and Securities (1) Instruments backed by residential real estate assets $ 1,656 Discounted cash flow, Market comparables Yield 0% to 25% 7% Trading account assets – Mortgage trading loans, ABS and other MBS 320 Prepayment speed 0% to 20% CPR 11% Loans and leases 492 Default rate 0% to 3% CDR 1% Loans held-for-sale 1 Loss severity 0% to 52% 17% AFS debt securities, primarily non-agency residential 556 Price $0 to $198 $71 Other debt securities carried at fair value - Non-agency residential 287 Instruments backed by commercial real estate assets $ 355 Discounted cash flow Yield 0% to 25% 14% Trading account assets – Corporate securities, trading loans and other 257 Price $0 to $101 $77 Trading account assets – Mortgage trading loans, ABS and other MBS 98 Commercial loans, debt securities and other $ 3,431 Discounted cash flow, Market comparables Yield 1% to 36% 12% Trading account assets – Corporate securities, trading loans and other 1,381 Prepayment speed 10% to 20% 14% Trading account assets – Non-U.S. sovereign debt 368 Default rate 3% to 4% 4% Trading account assets – Mortgage trading loans, ABS and other MBS 1,105 Loss severity 35% to 40% 38% Loans and leases 1 Price $0 to $141 $67 Loans held-for-sale 576 Other assets, primarily auction rate securities $ 955 Discounted cash flow, Market comparables Price $10 to $100 $96 MSRs $ 2,229 Discounted cash flow Weighted-average life, fixed rate (4) 0 to 14 years 6 years Weighted-average life, variable rate (4) 0 to 10 years 3 years Option-adjusted spread, fixed rate 9% to 14% 10% Option-adjusted spread, variable rate 9% to 15% 12% Structured liabilities Long-term debt $ (1,225 ) Discounted cash flow, Market comparables, Industry standard derivative pricing (2) Equity correlation 11% to 100% 62% Long-dated equity volatilities 4% to 75% 24% Yield 13% to 36% 16% Price $0 to $100 $74 Net derivative assets Credit derivatives $ (528 ) Discounted cash flow, Stochastic recovery correlation model Yield 2% to 12% 4% Upfront points 0 points to 100 points 70 points Credit correlation 70% n/a Prepayment speed 15% to 20% CPR 15% Default rate 1% to 4% CDR 2% Loss severity 35% n/a Price $0 to $101 $72 Equity derivatives $ (1,651 ) Industry standard derivative pricing (2) Equity correlation 11% to 100% 62% Long-dated equity volatilities 4% to 75% 24% Commodity derivatives $ (13 ) Discounted cash flow, Industry standard derivative pricing (2) Natural gas forward price $1/MMBtu to $7/MMBtu $3/MMBtu Correlation 62% to 93% 81% Volatilities 11% to 465% 122% Interest rate derivatives $ 604 Industry standard derivative pricing (3) Correlation (IR/IR) 15% to 70% 47% Correlation (FX/IR) 0% to 46% 1% Long-dated inflation rates -18% to 34% 2% Long-dated inflation volatilities 0% to 1% 1% Total net derivative assets $ (1,588 ) (1) The categories are aggregated based upon product type which differs from financial statement classification. The following is a reconciliation to the line items in the table on page 100 : Trading account assets – Corporate securities, trading loans and other of $1.6 billion , Trading account assets – Non-U.S. sovereign debt of $368 million , Trading account assets – Mortgage trading loans, ABS and other MBS of $1.5 billion , AFS debt securities of $556 million , Other debt securities carried at fair value - Non-agency residential of $287 million , Other assets of $955 million , Loans and leases of $493 million and LHFS of $577 million . (2) Includes models such as Monte Carlo simulation and Black-Scholes. (3) Includes models such as Monte Carlo simulation, Black-Scholes and other methods that model the joint dynamics of interest, inflation and foreign exchange rates. (4) The weighted-average life is a product of changes in market rates of interest, prepayment rates and other model and cash flow assumptions. CPR = Constant Prepayment Rate CDR = Constant Default Rate MMBtu = Million British thermal units IR = Interest Rate FX = Foreign Exchange n/a = not applicable Quantitative Information about Level 3 Fair Value Measurements at December 31, 2017 (Dollars in millions) Inputs Financial Instrument Fair Valuation Significant Unobservable Ranges of Weighted Average Loans and Securities (1) Instruments backed by residential real estate assets $ 871 Discounted cash flow Yield 0% to 25% 6% Trading account assets – Mortgage trading loans, ABS and other MBS 298 Prepayment speed 0% to 22% CPR 12% Loans and leases 570 Default rate 0% to 3% CDR 1% Loans held-for-sale 3 Loss severity 0% to 53% 17% Instruments backed by commercial real estate assets $ 286 Discounted cash flow Yield 0% to 25% 9% Trading account assets – Corporate securities, trading loans and other 244 Price $0 to $100 $67 Trading account assets – Mortgage trading loans, ABS and other MBS 42 Commercial loans, debt securities and other $ 4,023 Discounted cash flow, Market comparables Yield 0% to 12% 5% Trading account assets – Corporate securities, trading loans and other 1,613 Prepayment speed 10% to 20% 16% Trading account assets – Non-U.S. sovereign debt 556 Default rate 3% to 4% 4% Trading account assets – Mortgage trading loans, ABS and other MBS 1,158 Loss severity 35% to 40% 37% AFS debt securities – Other taxable securities 8 Price $0 to $145 $63 Loans and leases 1 Loans held-for-sale 687 Auction rate securities $ 977 Discounted cash flow, Market comparables Price $10 to $100 $94 Trading account assets – Corporate securities, trading loans and other 7 AFS debt securities – Other taxable securities 501 AFS debt securities – Tax-exempt securities 469 MSRs $ 2,302 Discounted cash flow Weighted-average life, fixed rate (4) 0 to 14 years 5 years Weighted-average life, variable rate (4) 0 to 10 years 3 years Option-adjusted spread, fixed rate 9% to 14% 10% Option-adjusted spread, variable rate 9% to 15% 12% Structured liabilities Long-term debt $ (1,863 ) Discounted cash flow, Market comparables, Industry standard derivative pricing (2) Equity correlation 15% to 100% 63% Long-dated equity volatilities 4% to 84% 22% Yield 7.5% n/a Price $0 to $100 $66 Net derivative assets Credit derivatives $ (282 ) Discounted cash flow, Stochastic recovery correlation model Yield 1% to 5% 3% Upfront points 0 points to 100 points 71 points Credit correlation 35% to 83% 42% Prepayment speed 15% to 20% CPR 16% Default rate 1% to 4% CDR 2% Loss severity 35% n/a Price $0 to $102 $82 Equity derivatives $ (2,059 ) Industry standard derivative pricing (2) Equity correlation 15% to 100% 63% Long-dated equity volatilities 4% to 84% 22% Commodity derivatives $ (3 ) Discounted cash flow, Industry standard derivative pricing (2) Natural gas forward price $1/MMBtu to $5/MMBtu $3/MMBtu Correlation 71% to 87% 81% Volatilities 26% to 132% 57% Interest rate derivatives $ 630 Industry standard derivative pricing (3) Correlation (IR/IR) 15% to 92% 50% Correlation (FX/IR) 0% to 46% 1% Long-dated inflation rates -14% to 38% 4% Long-dated inflation volatilities 0% to 1% 1% Total net derivative assets $ (1,714 ) (1) The categories are aggregated based upon product type which differs from financial statement classification. The following is a reconciliation to the line items in the table on page 101 : Trading account assets – Corporate securities, trading loans and other of $1.9 billion , Trading account assets – Non-U.S. sovereign debt of $556 million , Trading account assets – Mortgage trading loans, ABS and other MBS of $1.5 billion , AFS debt securities – Other taxable securities of $509 million , AFS debt securities – Tax-exempt securities of $469 million , Loans and leases of $571 million and LHFS of $690 million . (2) Includes models such as Monte Carlo simulation and Black-Scholes. (3) Includes models such as Monte Carlo simulation, Black-Scholes and other methods that model the joint dynamics of interest, inflation and foreign exchange rates. (4) The weighted-average life is a product of changes in market rates of interest, prepayment rates and other model and cash flow assumptions. CPR = Constant Prepayment Rate CDR = Constant Default Rate MMBtu = Million British thermal units IR = Interest Rate FX = Foreign Exchange n/a = not applicable
Fair Value Inputs, Liabilities, Quantitative Information	The following tables present information about significant unobservable inputs related to the Corporation’s material categories of Level 3 financial assets and liabilities at June 30, 2018 and December 31, 2017 . Quantitative Information about Level 3 Fair Value Measurements at June 30, 2018 (Dollars in millions) Inputs Financial Instrument Fair Value Valuation Technique Significant Unobservable Inputs Ranges of Inputs Weighted Average Loans and Securities (1) Instruments backed by residential real estate assets $ 1,656 Discounted cash flow, Market comparables Yield 0% to 25% 7% Trading account assets – Mortgage trading loans, ABS and other MBS 320 Prepayment speed 0% to 20% CPR 11% Loans and leases 492 Default rate 0% to 3% CDR 1% Loans held-for-sale 1 Loss severity 0% to 52% 17% AFS debt securities, primarily non-agency residential 556 Price $0 to $198 $71 Other debt securities carried at fair value - Non-agency residential 287 Instruments backed by commercial real estate assets $ 355 Discounted cash flow Yield 0% to 25% 14% Trading account assets – Corporate securities, trading loans and other 257 Price $0 to $101 $77 Trading account assets – Mortgage trading loans, ABS and other MBS 98 Commercial loans, debt securities and other $ 3,431 Discounted cash flow, Market comparables Yield 1% to 36% 12% Trading account assets – Corporate securities, trading loans and other 1,381 Prepayment speed 10% to 20% 14% Trading account assets – Non-U.S. sovereign debt 368 Default rate 3% to 4% 4% Trading account assets – Mortgage trading loans, ABS and other MBS 1,105 Loss severity 35% to 40% 38% Loans and leases 1 Price $0 to $141 $67 Loans held-for-sale 576 Other assets, primarily auction rate securities $ 955 Discounted cash flow, Market comparables Price $10 to $100 $96 MSRs $ 2,229 Discounted cash flow Weighted-average life, fixed rate (4) 0 to 14 years 6 years Weighted-average life, variable rate (4) 0 to 10 years 3 years Option-adjusted spread, fixed rate 9% to 14% 10% Option-adjusted spread, variable rate 9% to 15% 12% Structured liabilities Long-term debt $ (1,225 ) Discounted cash flow, Market comparables, Industry standard derivative pricing (2) Equity correlation 11% to 100% 62% Long-dated equity volatilities 4% to 75% 24% Yield 13% to 36% 16% Price $0 to $100 $74 Net derivative assets Credit derivatives $ (528 ) Discounted cash flow, Stochastic recovery correlation model Yield 2% to 12% 4% Upfront points 0 points to 100 points 70 points Credit correlation 70% n/a Prepayment speed 15% to 20% CPR 15% Default rate 1% to 4% CDR 2% Loss severity 35% n/a Price $0 to $101 $72 Equity derivatives $ (1,651 ) Industry standard derivative pricing (2) Equity correlation 11% to 100% 62% Long-dated equity volatilities 4% to 75% 24% Commodity derivatives $ (13 ) Discounted cash flow, Industry standard derivative pricing (2) Natural gas forward price $1/MMBtu to $7/MMBtu $3/MMBtu Correlation 62% to 93% 81% Volatilities 11% to 465% 122% Interest rate derivatives $ 604 Industry standard derivative pricing (3) Correlation (IR/IR) 15% to 70% 47% Correlation (FX/IR) 0% to 46% 1% Long-dated inflation rates -18% to 34% 2% Long-dated inflation volatilities 0% to 1% 1% Total net derivative assets $ (1,588 ) (1) The categories are aggregated based upon product type which differs from financial statement classification. The following is a reconciliation to the line items in the table on page 100 : Trading account assets – Corporate securities, trading loans and other of $1.6 billion , Trading account assets – Non-U.S. sovereign debt of $368 million , Trading account assets – Mortgage trading loans, ABS and other MBS of $1.5 billion , AFS debt securities of $556 million , Other debt securities carried at fair value - Non-agency residential of $287 million , Other assets of $955 million , Loans and leases of $493 million and LHFS of $577 million . (2) Includes models such as Monte Carlo simulation and Black-Scholes. (3) Includes models such as Monte Carlo simulation, Black-Scholes and other methods that model the joint dynamics of interest, inflation and foreign exchange rates. (4) The weighted-average life is a product of changes in market rates of interest, prepayment rates and other model and cash flow assumptions. CPR = Constant Prepayment Rate CDR = Constant Default Rate MMBtu = Million British thermal units IR = Interest Rate FX = Foreign Exchange n/a = not applicable Quantitative Information about Level 3 Fair Value Measurements at December 31, 2017 (Dollars in millions) Inputs Financial Instrument Fair Valuation Significant Unobservable Ranges of Weighted Average Loans and Securities (1) Instruments backed by residential real estate assets $ 871 Discounted cash flow Yield 0% to 25% 6% Trading account assets – Mortgage trading loans, ABS and other MBS 298 Prepayment speed 0% to 22% CPR 12% Loans and leases 570 Default rate 0% to 3% CDR 1% Loans held-for-sale 3 Loss severity 0% to 53% 17% Instruments backed by commercial real estate assets $ 286 Discounted cash flow Yield 0% to 25% 9% Trading account assets – Corporate securities, trading loans and other 244 Price $0 to $100 $67 Trading account assets – Mortgage trading loans, ABS and other MBS 42 Commercial loans, debt securities and other $ 4,023 Discounted cash flow, Market comparables Yield 0% to 12% 5% Trading account assets – Corporate securities, trading loans and other 1,613 Prepayment speed 10% to 20% 16% Trading account assets – Non-U.S. sovereign debt 556 Default rate 3% to 4% 4% Trading account assets – Mortgage trading loans, ABS and other MBS 1,158 Loss severity 35% to 40% 37% AFS debt securities – Other taxable securities 8 Price $0 to $145 $63 Loans and leases 1 Loans held-for-sale 687 Auction rate securities $ 977 Discounted cash flow, Market comparables Price $10 to $100 $94 Trading account assets – Corporate securities, trading loans and other 7 AFS debt securities – Other taxable securities 501 AFS debt securities – Tax-exempt securities 469 MSRs $ 2,302 Discounted cash flow Weighted-average life, fixed rate (4) 0 to 14 years 5 years Weighted-average life, variable rate (4) 0 to 10 years 3 years Option-adjusted spread, fixed rate 9% to 14% 10% Option-adjusted spread, variable rate 9% to 15% 12% Structured liabilities Long-term debt $ (1,863 ) Discounted cash flow, Market comparables, Industry standard derivative pricing (2) Equity correlation 15% to 100% 63% Long-dated equity volatilities 4% to 84% 22% Yield 7.5% n/a Price $0 to $100 $66 Net derivative assets Credit derivatives $ (282 ) Discounted cash flow, Stochastic recovery correlation model Yield 1% to 5% 3% Upfront points 0 points to 100 points 71 points Credit correlation 35% to 83% 42% Prepayment speed 15% to 20% CPR 16% Default rate 1% to 4% CDR 2% Loss severity 35% n/a Price $0 to $102 $82 Equity derivatives $ (2,059 ) Industry standard derivative pricing (2) Equity correlation 15% to 100% 63% Long-dated equity volatilities 4% to 84% 22% Commodity derivatives $ (3 ) Discounted cash flow, Industry standard derivative pricing (2) Natural gas forward price $1/MMBtu to $5/MMBtu $3/MMBtu Correlation 71% to 87% 81% Volatilities 26% to 132% 57% Interest rate derivatives $ 630 Industry standard derivative pricing (3) Correlation (IR/IR) 15% to 92% 50% Correlation (FX/IR) 0% to 46% 1% Long-dated inflation rates -14% to 38% 4% Long-dated inflation volatilities 0% to 1% 1% Total net derivative assets $ (1,714 ) (1) The categories are aggregated based upon product type which differs from financial statement classification. The following is a reconciliation to the line items in the table on page 101 : Trading account assets – Corporate securities, trading loans and other of $1.9 billion , Trading account assets – Non-U.S. sovereign debt of $556 million , Trading account assets – Mortgage trading loans, ABS and other MBS of $1.5 billion , AFS debt securities – Other taxable securities of $509 million , AFS debt securities – Tax-exempt securities of $469 million , Loans and leases of $571 million and LHFS of $690 million . (2) Includes models such as Monte Carlo simulation and Black-Scholes. (3) Includes models such as Monte Carlo simulation, Black-Scholes and other methods that model the joint dynamics of interest, inflation and foreign exchange rates. (4) The weighted-average life is a product of changes in market rates of interest, prepayment rates and other model and cash flow assumptions. CPR = Constant Prepayment Rate CDR = Constant Default Rate MMBtu = Million British thermal units IR = Interest Rate FX = Foreign Exchange n/a = not applicable
Assets and Liabilities Measured at Fair Value on Nonrecurring Basis	The amounts below represent assets still held as of the reporting date for which a nonrecurring fair value adjustment was recorded during the three and six months ended June 30, 2018 and 2017 . Assets Measured at Fair Value on a Nonrecurring Basis June 30, 2018 Three Months Ended June 30, 2018 Six Months Ended June 30, 2018 (Dollars in millions) Level 2 Level 3 Gains (Losses) Assets Loans held-for-sale $ 179 $ 1 $ — $ (2 ) Loans and leases (1) — 420 (80 ) (156 ) Foreclosed properties (2, 3) 15 77 (25 ) (32 ) Other assets 243 5 (31 ) (35 ) June 30, 2017 Three Months Ended June 30, 2017 Six Months Ended June 30, 2017 Assets Loans held-for-sale $ 64 $ — $ — $ — Loans and leases (1) — 609 (105 ) (201 ) Foreclosed properties (2, 3) — 83 (26 ) (35 ) Other assets 309 — (55 ) (137 ) (1) Includes $31 million and $64 million of losses on loans that were written down to a collateral value of zero during the three and six months ended June 30, 2018 , compared to losses of $43 million and $78 million for the same periods in 2017 . (2) Amounts are included in other assets on the Consolidated Balance Sheet and represent the carrying value of foreclosed properties that were written down subsequent to their initial classification as foreclosed properties. Losses on foreclosed properties include losses recorded during the first 90 days after transfer of a loan to foreclosed properties. (3) Excludes $573 million and $1.0 billion of properties acquired upon foreclosure of certain government-guaranteed loans (principally FHA-insured loans) at June 30, 2018 and 2017 .
Fair Value, Assets and Liabilities Measured on Nonrecurring Basis, Valuation Techniques	The table below presents information about significant unobservable inputs related to the Corporation’s nonrecurring Level 3 financial assets and liabilities at June 30, 2018 and December 31, 2017 . Loans and leases backed by residential real estate assets represent residential mortgages where the loan has been written down to the fair value of the underlying collateral. Quantitative Information about Nonrecurring Level 3 Fair Value Measurements Inputs Financial Instrument Fair Value Valuation Technique Significant Unobservable Inputs Ranges of Inputs Weighted Average (Dollars in millions) June 30, 2018 Loans and leases backed by residential real estate assets $ 420 Market comparables OREO discount 13% to 59% 25 % Costs to sell 8% to 26% 9 % December 31, 2017 Loans and leases backed by residential real estate assets $ 894 Market comparables OREO discount 15% to 58% 23 % Costs to sell 5% to 49% 7 %

Fair Value Option (Tables)

Fair Value Option (Tables)	6 Months Ended
	Jun. 30, 2018
Fair Value Disclosures [Abstract]
Schedule of Fair Value Option Elections	The following tables provide information about the fair value carrying amount and the contractual principal outstanding of assets and liabilities accounted for under the fair value option at June 30, 2018 and December 31, 2017 , and information about where changes in the fair value of assets and liabilities accounted for under the fair value option are included in the Consolidated Statement of Income for the three and six months ended June 30, 2018 and 2017 . Fair Value Option Elections June 30, 2018 December 31, 2017 (Dollars in millions) Fair Value Carrying Amount Contractual Principal Outstanding Fair Value Carrying Amount Less Unpaid Principal Fair Value Carrying Amount Contractual Principal Outstanding Fair Value Carrying Amount Less Unpaid Principal Federal funds sold and securities borrowed or purchased under agreements to resell $ 59,763 $ 59,666 $ 97 $ 52,906 $ 52,907 $ (1 ) Loans reported as trading account assets (1) 5,816 12,876 (7,060 ) 5,735 11,804 (6,069 ) Trading inventory – other 13,983 n/a n/a 12,027 n/a n/a Consumer and commercial loans 6,227 6,270 (43 ) 5,710 5,744 (34 ) Loans held-for-sale 2,845 4,190 (1,345 ) 2,156 3,717 (1,561 ) Other assets 3 n/a n/a 3 n/a n/a Long-term deposits 513 483 30 449 421 28 Federal funds purchased and securities loaned or sold under agreements to repurchase 32,724 32,735 (11 ) 36,182 36,187 (5 ) Short-term borrowings 3,396 3,396 — 1,494 1,494 — Unfunded loan commitments 114 n/a n/a 120 n/a n/a Long-term debt (2) 28,377 29,057 (680 ) 31,786 31,512 274 (1) A significant portion of the loans reported as trading account assets are distressed loans that trade and were purchased at a deep discount to par, and the remainder are loans with a fair value near contractual principal outstanding. (2) Includes structured liabilities with a fair value of $28.0 billion and $31.4 billion , and contractual principal outstanding of $28.7 billion and $31.1 billion at June 30, 2018 and December 31, 2017 . n/a = not applicable Gains (Losses) Relating to Assets and Liabilities Accounted for Under the Fair Value Option Trading Account Profits Other Income Total Trading Account Profits Other Income Total Three Months Ended June 30 (Dollars in millions) 2018 2017 Loans reported as trading account assets $ (32 ) $ — $ (32 ) $ 47 $ — $ 47 Trading inventory – other (1) 1,361 — 1,361 522 — 522 Consumer and commercial loans 19 (11 ) 8 4 20 24 Loans held-for-sale (2) — (1 ) (1 ) (1 ) 76 75 Long-term debt (3, 4) 535 (15 ) 520 107 (34 ) 73 Other (5) 6 15 21 5 (1 ) 4 Total $ 1,889 $ (12 ) $ 1,877 $ 684 $ 61 $ 745 Six Months Ended June 30 2018 2017 Loans reported as trading account assets $ 71 $ — $ 71 $ 197 $ — $ 197 Trading inventory – other (1) 1,956 — 1,956 1,673 — 1,673 Consumer and commercial loans 125 (32 ) 93 9 39 48 Loans held-for-sale (2) 1 2 3 — 170 170 Long-term debt (3, 4) 1,354 (56 ) 1,298 (55 ) (71 ) (126 ) Other (5) 13 23 36 (53 ) 42 (11 ) Total $ 3,520 $ (63 ) $ 3,457 $ 1,771 $ 180 $ 1,951 (1) The gains in trading account profits are primarily offset by losses on trading liabilities that hedge these assets. (2) Includes the value of IRLCs on funded loans, including those sold during the period. (3) The majority of the net gains (losses) in trading account profits relate to the embedded derivatives in structured liabilities and are offset by gains (losses) on derivatives and securities that hedge these liabilities. (4) For the cumulative impact of changes in the Corporation’s own credit spreads and the amount recognized in accumulated OCI, see Note 12 – Accumulated Other Comprehensive Income (Loss) . For additional information on how the Corporation’s own credit spread is determined, see Note 20 – Fair Value Measurements to the Consolidated Financial Statements of the Corporation’s 2017 Annual Report on Form 10-K . (5) Includes gains (losses) on federal funds sold and securities borrowed or purchased under agreements to resell, long-term deposits, federal funds purchased and securities loaned or sold under agreements to repurchase, short-term borrowings and unfunded loan commitments. Gains (Losses) Related to Borrower-specific Credit Risk for Assets Accounted for Under the Fair Value Option Three Months Ended June 30 Six Months Ended June 30 (Dollars in millions) 2018 2017 2018 2017 Loans reported as trading account assets $ (2 ) $ 7 $ 11 $ 20 Consumer and commercial loans (10 ) 22 (27 ) 41 Loans held-for-sale 4 (1 ) 1 (1 )

Fair Value of Financial Instr40

Fair Value of Financial Instruments (Tables)	6 Months Ended
	Jun. 30, 2018
Fair Value Disclosures [Abstract]
Carrying and Fair Value of Financial Instruments	The carrying values and fair values by fair value hierarchy of certain financial instruments where only a portion of the ending balance was carried at fair value at June 30, 2018 and December 31, 2017 are presented in the following table. Fair Value of Financial Instruments Fair Value Carrying Value Level 2 Level 3 Total (Dollars in millions) June 30, 2018 Financial assets Loans $ 901,569 $ 61,161 $ 845,632 $ 906,793 Loans held-for-sale 6,511 5,121 1,446 6,567 Financial liabilities Deposits (1) 1,309,691 1,309,332 — 1,309,332 Long-term debt 226,595 230,268 1,225 231,493 Commercial unfunded lending commitments (2) 901 114 4,668 4,782 December 31, 2017 Financial assets Loans $ 904,399 $ 68,586 $ 849,576 $ 918,162 Loans held-for-sale 11,430 10,521 909 11,430 Financial liabilities Deposits (1) 1,309,545 1,309,398 — 1,309,398 Long-term debt 227,402 235,126 1,863 236,989 Commercial unfunded lending commitments (2) 897 120 3,908 4,028 (1) Includes demand deposits of $515.6 billion and $519.6 billion with no stated maturities at June 30, 2018 and December 31, 2017 . (2) The carrying value is included in accrued expenses and other liabilities on the Consolidated Balance Sheet. For more information on commitments, see Note 10 – Commitments and Contingencies .

Business Segment Information (T

Business Segment Information (Tables)	6 Months Ended
	Jun. 30, 2018
Segment Reporting [Abstract]
Schedule of Segment Reporting Information, by Segment	The following tables present net income (loss) and the components thereto (with net interest income on an FTE basis) for the three and six months ended June 30, 2018 and 2017 and total assets at June 30, 2018 and 2017 for each business segment, as well as All Other, including a reconciliation of the four business segments’ total revenue, net of interest expense, on an FTE basis, and net income to the Consolidated Statement of Income, and total assets to the Consolidated Balance Sheet. Results of Business Segments and All Other At and for the three months ended June 30 Total Corporation (1) Consumer Banking Global Wealth & (Dollars in millions) 2018 2017 2018 2017 2018 2017 Net interest income (FTE basis) $ 11,804 $ 11,223 $ 6,620 $ 5,961 $ 1,543 $ 1,597 Noninterest income 10,959 11,843 2,591 2,548 3,166 3,098 Total revenue, net of interest expense (FTE basis) 22,763 23,066 9,211 8,509 4,709 4,695 Provision for credit losses 827 726 944 834 12 11 Noninterest expense 13,284 13,982 4,397 4,411 3,399 3,392 Income before income taxes (FTE basis) 8,652 8,358 3,870 3,264 1,298 1,292 Income tax expense (FTE basis) 1,868 3,252 987 1,233 330 488 Net income $ 6,784 $ 5,106 $ 2,883 $ 2,031 $ 968 $ 804 Period-end total assets $ 2,291,670 $ 2,254,714 $ 768,187 $ 735,176 $ 270,913 $ 274,746 Global Banking Global Markets All Other 2018 2017 2018 2017 2018 2017 Net interest income (FTE basis) $ 2,711 $ 2,541 $ 801 $ 864 $ 129 $ 260 Noninterest income (loss) 2,211 2,498 3,420 3,083 (429 ) 616 Total revenue, net of interest expense (FTE basis) 4,922 5,039 4,221 3,947 (300 ) 876 Provision for credit losses (23 ) 15 (1 ) 25 (105 ) (159 ) Noninterest expense 2,154 2,154 2,715 2,650 619 1,375 Income (loss) before income taxes (FTE basis) 2,791 2,870 1,507 1,272 (814 ) (340 ) Income tax expense (benefit) (FTE basis) 727 1,084 391 442 (567 ) 5 Net income (loss) $ 2,064 $ 1,786 $ 1,116 $ 830 $ (247 ) $ (345 ) Period-end total assets $ 424,971 $ 410,580 $ 637,110 $ 633,188 $ 190,489 $ 201,024 (1) There were no material intersegment revenues. Results of Business Segments and All Other At and for the six months ended June 30 Total Corporation (1) Consumer Banking Global Wealth & (Dollars in millions) 2018 2017 2018 2017 2018 2017 Net interest income (FTE basis) $ 23,562 $ 22,478 $ 13,130 $ 11,741 $ 3,137 $ 3,157 Noninterest income 22,476 23,033 5,113 5,051 6,428 6,130 Total revenue, net of interest expense (FTE basis) 46,038 45,511 18,243 16,792 9,565 9,287 Provision for credit losses 1,661 1,561 1,879 1,672 50 34 Noninterest expense 27,181 28,075 8,877 8,820 6,827 6,721 Income before income taxes (FTE basis) 17,196 15,875 7,487 6,300 2,688 2,532 Income tax expense (FTE basis) 3,494 5,432 1,909 2,377 685 955 Net income $ 13,702 $ 10,443 $ 5,578 $ 3,923 $ 2,003 $ 1,577 Period-end total assets $ 2,291,670 $ 2,254,714 $ 768,187 $ 735,176 $ 270,913 $ 274,746 Global Banking Global Markets All Other 2018 2017 2018 2017 2018 2017 Net interest income (FTE basis) $ 5,351 $ 5,143 $ 1,671 $ 1,913 $ 273 $ 524 Noninterest income (loss) 4,505 4,851 7,336 6,741 (906 ) 260 Total revenue, net of interest expense (FTE basis) 9,856 9,994 9,007 8,654 (633 ) 784 Provision for credit losses (7 ) 32 (4 ) 8 (257 ) (185 ) Noninterest expense 4,349 4,317 5,533 5,406 1,595 2,811 Income (loss) before income taxes (FTE basis) 5,514 5,645 3,478 3,240 (1,971 ) (1,842 ) Income tax expense (benefit) (FTE basis) 1,434 2,130 904 1,113 (1,438 ) (1,143 ) Net income (loss) $ 4,080 $ 3,515 $ 2,574 $ 2,127 $ (533 ) $ (699 ) Period-end total assets $ 424,971 $ 410,580 $ 637,110 $ 633,188 $ 190,489 $ 201,024 (1) There were no material intersegment revenues. Business Segment Reconciliations Three Months Ended June 30 Six Months Ended June 30 (Dollars in millions) 2018 2017 2018 2017 Segments’ total revenue, net of interest expense (FTE basis) $ 23,063 $ 22,190 $ 46,671 $ 44,727 Adjustments (1) : ALM activities (271 ) 104 (155 ) 59 Liquidating businesses, eliminations and other (29 ) 772 (478 ) 725 FTE basis adjustment (154 ) (237 ) (304 ) (434 ) Consolidated revenue, net of interest expense $ 22,609 $ 22,829 $ 45,734 $ 45,077 Segments’ total net income 7,031 5,451 14,235 11,142 Adjustments, net-of-taxes (1) : ALM activities (328 ) (86 ) (382 ) (265 ) Liquidating businesses, eliminations and other 81 (259 ) (151 ) (434 ) Consolidated net income $ 6,784 $ 5,106 $ 13,702 $ 10,443 June 30 2018 2017 Segments’ total assets $ 2,101,181 $ 2,053,690 Adjustments (1) : ALM activities, including securities portfolio 631,777 620,507 Other 80,901 98,178 Elimination of segment asset allocations to match liabilities (522,189 ) (517,661 ) Consolidated total assets $ 2,291,670 $ 2,254,714 (1) Adjustments include consolidated income, expense and asset amounts not specifically allocated to individual business segments. The tables below present noninterest income and the components thereto for the three and six months ended June 30, 2018 and 2017 for each business segment, as well as All Other . For additional information, see Note 1 – Summary of Significant Accounting Principles and Note 2 – Noninterest Income . Noninterest Income by Business Segment and All Other Total Corporation Consumer Banking Global Wealth & Three Months Ended June 30 (Dollars in millions) 2018 2017 2018 2017 2018 2017 Card income Interchange fees $ 1,070 $ 983 $ 882 $ 800 $ 27 $ 24 Other card income 472 486 460 448 11 10 Total card income 1,542 1,469 1,342 1,248 38 34 Service charges Deposit-related fees 1,680 1,696 1,072 1,061 17 19 Lending-related fees 274 281 — — — — Total service charges 1,954 1,977 1,072 1,061 17 19 Investment and brokerage services Asset management fees 2,513 2,288 37 31 2,476 2,257 Brokerage fees 945 1,172 43 46 461 572 Total investment and brokerage services 3,458 3,460 80 77 2,937 2,829 Investment banking income Underwriting income 719 709 — — 73 95 Syndication fees 400 340 — — — — Financial advisory services 303 483 — — — 1 Total investment banking income 1,422 1,532 — — 73 96 Trading account profits 2,315 1,956 2 1 27 33 Other income 268 1,449 95 161 74 87 Total noninterest income $ 10,959 $ 11,843 $ 2,591 $ 2,548 $ 3,166 $ 3,098 Global Banking Global Markets All Other (1) Three Months Ended June 30 2018 2017 2018 2017 2018 2017 Card income Interchange fees $ 136 $ 131 $ 25 $ 24 $ — $ 4 Other card income 2 3 — — (1 ) 25 Total card income 138 134 25 24 (1 ) 29 Service charges Deposit-related fees 540 571 45 40 6 5 Lending-related fees 229 238 45 43 — — Total service charges 769 809 90 83 6 5 Investment and brokerage services Asset management fees — — — — — — Brokerage fees 19 38 430 521 (8 ) (5 ) Total investment and brokerage services 19 38 430 521 (8 ) (5 ) Investment banking income Underwriting income 99 143 592 554 (45 ) (83 ) Syndication fees 375 321 25 19 — — Financial advisory services 269 465 35 17 (1 ) — Total investment banking income 743 929 652 590 (46 ) (83 ) Trading account profits 63 54 2,184 1,743 39 125 Other income 479 534 39 122 (419 ) 545 Total noninterest income $ 2,211 $ 2,498 $ 3,420 $ 3,083 $ (429 ) $ 616 (1) All Other Includes eliminations of intercompany transactions. Noninterest Income by Business Segment and All Other Total Corporation Consumer Banking Global Wealth & Six Months Ended June 30 (Dollars in millions) 2018 2017 2018 2017 2018 2017 Card income Interchange fees $ 2,041 $ 1,941 $ 1,686 $ 1,584 $ 38 $ 50 Other card income 958 977 935 889 21 20 Total card income 2,999 2,918 2,621 2,473 59 70 Service charges Deposit-related fees 3,326 3,349 2,116 2,112 36 38 Lending-related fees 549 546 — — — — Total service charges 3,875 3,895 2,116 2,112 36 38 Investment and brokerage services Asset management fees 5,077 4,488 73 64 5,004 4,424 Brokerage fees 2,045 2,389 89 95 973 1,196 Total investment and brokerage services 7,122 6,877 162 159 5,977 5,620 Investment banking income Underwriting income 1,460 1,488 — — 157 146 Syndication fees 716 740 — — — — Financial advisory services 599 888 — — — 1 Total investment banking income 2,775 3,116 — — 157 147 Trading account profits 5,014 4,287 4 1 56 91 Other income 691 1,940 210 306 143 164 Total noninterest income $ 22,476 $ 23,033 $ 5,113 $ 5,051 $ 6,428 $ 6,130 Global Banking Global Markets All Other (1) Six Months Ended June 30 2018 2017 2018 2017 2018 2017 Card income Interchange fees $ 270 $ 252 $ 47 $ 46 $ — $ 9 Other card income 3 7 — — (1 ) 61 Total card income 273 259 47 46 (1 ) 70 Service charges Deposit-related fees 1,078 1,116 85 73 11 10 Lending-related fees 454 459 95 87 — — Total service charges 1,532 1,575 180 160 11 10 Investment and brokerage services Asset management fees — — — — — — Brokerage fees 44 54 918 1,052 21 (8 ) Total investment and brokerage services 44 54 918 1,052 21 (8 ) Investment banking income Underwriting income 269 299 1,163 1,185 (129 ) (142 ) Syndication fees 673 700 43 40 — — Financial advisory services 545 856 55 30 (1 ) 1 Total investment banking income 1,487 1,855 1,261 1,255 (130 ) (141 ) Trading account profits 124 87 4,887 3,920 (57 ) 188 Other income 1,045 1,021 43 308 (750 ) 141 Total noninterest income $ 4,505 $ 4,851 $ 7,336 $ 6,741 $ (906 ) $ 260 (1) All Other Includes eliminations of intercompany transactions.

Summary of Significant Accoun42

Summary of Significant Accounting Principles (Details)	6 Months Ended
	Jun. 30, 2018
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Revenue, performance obligation period	1 year
Contract cancellation period	1 year
Card Income
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Revenue, performance obligation period	12 months
Minimum
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Fee percentage of assets under management	0.50%
Maximum
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Fee percentage of assets under management	1.50%

Noninterest Income (Details)

Noninterest Income (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Disaggregation of Revenue [Line Items]
Card income	$ 1,542	$ 1,469	$ 2,999	$ 2,918
Service charges	1,954	1,977	3,875	3,895
Investment and brokerage services	3,458	3,460	7,122	6,877
Investment banking income	1,422	1,532	2,775	3,116
Trading account profits	2,315	1,956	5,014	4,287
Other income	268	1,449	691	1,940
Total noninterest income	10,959	11,843	22,476	23,033
Rewards, rebates and compensation expense	1,300	1,200	2,600	2,300
Interchange fees
Disaggregation of Revenue [Line Items]
Card income	1,070	983	2,041	1,941
Interchange fees, gross	2,400	2,200	4,600	4,300
Other card income
Disaggregation of Revenue [Line Items]
Card income	472	486	958	977
Deposit-related fees
Disaggregation of Revenue [Line Items]
Service charges	1,680	1,696	3,326	3,349
Lending-related fees
Disaggregation of Revenue [Line Items]
Service charges	274	281	549	546
Asset management fees
Disaggregation of Revenue [Line Items]
Investment and brokerage services	2,513	2,288	5,077	4,488
Brokerage fees
Disaggregation of Revenue [Line Items]
Investment and brokerage services	945	1,172	2,045	2,389
Underwriting income
Disaggregation of Revenue [Line Items]
Investment banking income	719	709	1,460	1,488
Syndication fees
Disaggregation of Revenue [Line Items]
Investment banking income	400	340	716	740
Financial advisory services
Disaggregation of Revenue [Line Items]
Investment banking income	$ 303	$ 483	$ 599	$ 888

Derivatives - Derivative Balanc

Derivatives - Derivative Balances (Details) - USD ($) $ in Millions	Jun. 30, 2018	Dec. 31, 2017
Gross Derivative Assets
Gross Derivative Assets	$ 360,600	$ 351,600
Less: Legally enforceable master netting agreements	(282,100)	(279,200)
Less: Cash collateral received/paid	(33,300)	(34,600)
Derivative assets	45,210	37,762
Gross Derivative Liabilities
Gross Derivative Liabilities	343,800	346,000
Less: Legally enforceable master netting agreements	(282,100)	(279,200)
Less: Cash collateral received/paid	(28,100)	(32,500)
Derivative liabilities	33,605	34,300
Interest Rate Swap
Maximum Payout/Notional
Contract/Notional	17,626,400	15,416,400
Gross Derivative Assets
Gross Derivative Assets	154,900	178,000
Gross Derivative Liabilities
Gross Derivative Liabilities	152,000	174,200
Interest Rate Futures and Forwards
Maximum Payout/Notional
Contract/Notional	6,464,700	4,332,400
Gross Derivative Assets
Gross Derivative Assets	1,400	500
Gross Derivative Liabilities
Gross Derivative Liabilities	1,400	500
Interest Rate Options | Written options
Maximum Payout/Notional
Contract/Notional	1,328,400	1,170,500
Gross Derivative Assets
Gross Derivative Assets	0	0
Gross Derivative Liabilities
Gross Derivative Liabilities	30,500	35,500
Interest Rate Options | Purchased options
Maximum Payout/Notional
Contract/Notional	1,283,100	1,184,500
Gross Derivative Assets
Gross Derivative Assets	31,900	37,600
Gross Derivative Liabilities
Gross Derivative Liabilities	0	0
Foreign Exchange Swaps
Maximum Payout/Notional
Contract/Notional	1,941,700	2,011,100
Gross Derivative Assets
Gross Derivative Assets	49,900	37,800
Gross Derivative Liabilities
Gross Derivative Liabilities	52,200	38,800
Foreign Exchange Spot Future and Forwards
Maximum Payout/Notional
Contract/Notional	5,190,900	3,543,300
Gross Derivative Assets
Gross Derivative Assets	53,300	39,800
Gross Derivative Liabilities
Gross Derivative Liabilities	49,600	39,900
Foreign Exchange Options | Written options
Maximum Payout/Notional
Contract/Notional	353,500	291,800
Gross Derivative Assets
Gross Derivative Assets	0	0
Gross Derivative Liabilities
Gross Derivative Liabilities	5,400	5,100
Foreign Exchange Options | Purchased options
Maximum Payout/Notional
Contract/Notional	352,500	271,900
Gross Derivative Assets
Gross Derivative Assets	4,900	4,600
Gross Derivative Liabilities
Gross Derivative Liabilities	0	0
Equity Swaps
Maximum Payout/Notional
Contract/Notional	269,600	265,600
Gross Derivative Assets
Gross Derivative Assets	5,100	4,800
Gross Derivative Liabilities
Gross Derivative Liabilities	5,400	4,400
Equity Futures and Forwards
Maximum Payout/Notional
Contract/Notional	98,200	106,900
Gross Derivative Assets
Gross Derivative Assets	900	1,500
Gross Derivative Liabilities
Gross Derivative Liabilities	800	900
Equity Options | Written options
Maximum Payout/Notional
Contract/Notional	565,400	480,800
Gross Derivative Assets
Gross Derivative Assets	0	0
Gross Derivative Liabilities
Gross Derivative Liabilities	24,200	23,900
Equity Options | Purchased options
Maximum Payout/Notional
Contract/Notional	533,800	428,200
Gross Derivative Assets
Gross Derivative Assets	35,900	24,700
Gross Derivative Liabilities
Gross Derivative Liabilities	0	0
Commodity Swaps
Maximum Payout/Notional
Contract/Notional	51,000	46,100
Gross Derivative Assets
Gross Derivative Assets	2,500	1,800
Gross Derivative Liabilities
Gross Derivative Liabilities	5,000	4,600
Commodity Futures and Forwards
Maximum Payout/Notional
Contract/Notional	63,100	47,100
Gross Derivative Assets
Gross Derivative Assets	3,300	3,500
Gross Derivative Liabilities
Gross Derivative Liabilities	500	600
Commodity Options | Written options
Maximum Payout/Notional
Contract/Notional	32,100	21,700
Gross Derivative Assets
Gross Derivative Assets	0	0
Gross Derivative Liabilities
Gross Derivative Liabilities	2,200	1,400
Commodity Options | Purchased options
Maximum Payout/Notional
Contract/Notional	31,300	22,900
Gross Derivative Assets
Gross Derivative Assets	2,100	1,400
Gross Derivative Liabilities
Gross Derivative Liabilities	0	0
Credit Default Swap | Purchased credit derivatives
Maximum Payout/Notional
Contract/Notional	431,600	470,900
Gross Derivative Assets
Gross Derivative Assets	4,900	4,100
Gross Derivative Liabilities
Gross Derivative Liabilities	8,900	11,100
Credit Default Swap | Written credit derivatives
Maximum Payout/Notional
Contract/Notional	407,597	448,201
Gross Derivative Assets
Gross Derivative Assets	8,500	10,600
Gross Derivative Liabilities
Gross Derivative Liabilities	4,322	3,586
Total return swaps/options | Purchased credit derivatives
Maximum Payout/Notional
Contract/Notional	75,300	54,100
Gross Derivative Assets
Gross Derivative Assets	400	100
Gross Derivative Liabilities
Gross Derivative Liabilities	1,100	1,300
Total return swaps/options | Written credit derivatives
Maximum Payout/Notional
Contract/Notional	75,309	55,223
Gross Derivative Assets
Gross Derivative Assets	700	800
Gross Derivative Liabilities
Gross Derivative Liabilities	337	183
Credit derivatives | Purchased credit derivatives
Gross Derivative Liabilities
Fair value, with identical underlying referenced names and terms	3,600	6,400
Notional amount, with identical underlying referenced names and terms	418,100	435,100
Credit derivatives | Written credit derivatives
Maximum Payout/Notional
Contract/Notional	482,906	503,424
Gross Derivative Liabilities
Gross Derivative Liabilities	4,659	3,769
Trading and Other Risk Management Derivatives
Gross Derivative Assets
Gross Derivative Assets	355,300	345,800
Gross Derivative Liabilities
Gross Derivative Liabilities	335,000	340,800
Trading and Other Risk Management Derivatives | Interest Rate Swap
Gross Derivative Assets
Gross Derivative Assets	153,300	175,100
Gross Derivative Liabilities
Gross Derivative Liabilities	147,200	172,500
Trading and Other Risk Management Derivatives | Interest Rate Futures and Forwards
Gross Derivative Assets
Gross Derivative Assets	1,400	500
Gross Derivative Liabilities
Gross Derivative Liabilities	1,400	500
Trading and Other Risk Management Derivatives | Interest Rate Options | Written options
Gross Derivative Assets
Gross Derivative Assets	0	0
Gross Derivative Liabilities
Gross Derivative Liabilities	30,500	35,500
Trading and Other Risk Management Derivatives | Interest Rate Options | Purchased options
Gross Derivative Assets
Gross Derivative Assets	31,900	37,600
Gross Derivative Liabilities
Gross Derivative Liabilities	0	0
Trading and Other Risk Management Derivatives | Foreign Exchange Swaps
Gross Derivative Assets
Gross Derivative Assets	47,400	35,600
Gross Derivative Liabilities
Gross Derivative Liabilities	48,700	36,100
Trading and Other Risk Management Derivatives | Foreign Exchange Spot Future and Forwards
Gross Derivative Assets
Gross Derivative Assets	52,100	39,100
Gross Derivative Liabilities
Gross Derivative Liabilities	49,100	39,100
Trading and Other Risk Management Derivatives | Foreign Exchange Options | Written options
Gross Derivative Assets
Gross Derivative Assets	0	0
Gross Derivative Liabilities
Gross Derivative Liabilities	5,400	5,100
Trading and Other Risk Management Derivatives | Foreign Exchange Options | Purchased options
Gross Derivative Assets
Gross Derivative Assets	4,900	4,600
Gross Derivative Liabilities
Gross Derivative Liabilities	0	0
Trading and Other Risk Management Derivatives | Equity Swaps
Gross Derivative Assets
Gross Derivative Assets	5,100	4,800
Gross Derivative Liabilities
Gross Derivative Liabilities	5,400	4,400
Trading and Other Risk Management Derivatives | Equity Futures and Forwards
Gross Derivative Assets
Gross Derivative Assets	900	1,500
Gross Derivative Liabilities
Gross Derivative Liabilities	800	900
Trading and Other Risk Management Derivatives | Equity Options | Written options
Gross Derivative Assets
Gross Derivative Assets	0	0
Gross Derivative Liabilities
Gross Derivative Liabilities	24,200	23,900
Trading and Other Risk Management Derivatives | Equity Options | Purchased options
Gross Derivative Assets
Gross Derivative Assets	35,900	24,700
Gross Derivative Liabilities
Gross Derivative Liabilities	0	0
Trading and Other Risk Management Derivatives | Commodity Swaps
Gross Derivative Assets
Gross Derivative Assets	2,500	1,800
Gross Derivative Liabilities
Gross Derivative Liabilities	5,000	4,600
Trading and Other Risk Management Derivatives | Commodity Futures and Forwards
Gross Derivative Assets
Gross Derivative Assets	3,300	3,500
Gross Derivative Liabilities
Gross Derivative Liabilities	500	600
Trading and Other Risk Management Derivatives | Commodity Options | Written options
Gross Derivative Assets
Gross Derivative Assets	0	0
Gross Derivative Liabilities
Gross Derivative Liabilities	2,200	1,400
Trading and Other Risk Management Derivatives | Commodity Options | Purchased options
Gross Derivative Assets
Gross Derivative Assets	2,100	1,400
Gross Derivative Liabilities
Gross Derivative Liabilities	0	0
Trading and Other Risk Management Derivatives | Credit Default Swap | Purchased credit derivatives
Gross Derivative Assets
Gross Derivative Assets	4,900	4,100
Gross Derivative Liabilities
Gross Derivative Liabilities	8,900	11,100
Trading and Other Risk Management Derivatives | Credit Default Swap | Written credit derivatives
Gross Derivative Assets
Gross Derivative Assets	8,500	10,600
Gross Derivative Liabilities
Gross Derivative Liabilities	4,300	3,600
Trading and Other Risk Management Derivatives | Total return swaps/options | Purchased credit derivatives
Gross Derivative Assets
Gross Derivative Assets	400	100
Gross Derivative Liabilities
Gross Derivative Liabilities	1,100	1,300
Trading and Other Risk Management Derivatives | Total return swaps/options | Written credit derivatives
Gross Derivative Assets
Gross Derivative Assets	700	800
Gross Derivative Liabilities
Gross Derivative Liabilities	300	200
Qualifying Accounting Hedges
Gross Derivative Assets
Gross Derivative Assets	5,300	5,800
Gross Derivative Liabilities
Gross Derivative Liabilities	8,800	5,200
Qualifying Accounting Hedges | Interest Rate Swap
Gross Derivative Assets
Gross Derivative Assets	1,600	2,900
Gross Derivative Liabilities
Gross Derivative Liabilities	4,800	1,700
Qualifying Accounting Hedges | Interest Rate Futures and Forwards
Gross Derivative Assets
Gross Derivative Assets	0	0
Gross Derivative Liabilities
Gross Derivative Liabilities	0	0
Qualifying Accounting Hedges | Interest Rate Options | Written options
Gross Derivative Assets
Gross Derivative Assets	0	0
Gross Derivative Liabilities
Gross Derivative Liabilities	0	0
Qualifying Accounting Hedges | Interest Rate Options | Purchased options
Gross Derivative Assets
Gross Derivative Assets	0	0
Gross Derivative Liabilities
Gross Derivative Liabilities	0	0
Qualifying Accounting Hedges | Foreign Exchange Swaps
Gross Derivative Assets
Gross Derivative Assets	2,500	2,200
Gross Derivative Liabilities
Gross Derivative Liabilities	3,500	2,700
Qualifying Accounting Hedges | Foreign Exchange Spot Future and Forwards
Gross Derivative Assets
Gross Derivative Assets	1,200	700
Gross Derivative Liabilities
Gross Derivative Liabilities	500	800
Qualifying Accounting Hedges | Foreign Exchange Options | Written options
Gross Derivative Assets
Gross Derivative Assets	0	0
Gross Derivative Liabilities
Gross Derivative Liabilities	0	0
Qualifying Accounting Hedges | Foreign Exchange Options | Purchased options
Gross Derivative Assets
Gross Derivative Assets	0	0
Gross Derivative Liabilities
Gross Derivative Liabilities	0	0
Qualifying Accounting Hedges | Equity Swaps
Gross Derivative Assets
Gross Derivative Assets	0	0
Gross Derivative Liabilities
Gross Derivative Liabilities	0	0
Qualifying Accounting Hedges | Equity Futures and Forwards
Gross Derivative Assets
Gross Derivative Assets	0	0
Gross Derivative Liabilities
Gross Derivative Liabilities	0	0
Qualifying Accounting Hedges | Equity Options | Written options
Gross Derivative Assets
Gross Derivative Assets	0	0
Gross Derivative Liabilities
Gross Derivative Liabilities	0	0
Qualifying Accounting Hedges | Equity Options | Purchased options
Gross Derivative Assets
Gross Derivative Assets	0	0
Gross Derivative Liabilities
Gross Derivative Liabilities	0	0
Qualifying Accounting Hedges | Commodity Swaps
Gross Derivative Assets
Gross Derivative Assets	0	0
Gross Derivative Liabilities
Gross Derivative Liabilities	0	0
Qualifying Accounting Hedges | Commodity Futures and Forwards
Gross Derivative Assets
Gross Derivative Assets	0	0
Gross Derivative Liabilities
Gross Derivative Liabilities	0	0
Qualifying Accounting Hedges | Commodity Options | Written options
Gross Derivative Assets
Gross Derivative Assets	0	0
Gross Derivative Liabilities
Gross Derivative Liabilities	0	0
Qualifying Accounting Hedges | Commodity Options | Purchased options
Gross Derivative Assets
Gross Derivative Assets	0	0
Gross Derivative Liabilities
Gross Derivative Liabilities	0	0
Qualifying Accounting Hedges | Credit Default Swap | Purchased credit derivatives
Gross Derivative Assets
Gross Derivative Assets	0	0
Gross Derivative Liabilities
Gross Derivative Liabilities	0	0
Qualifying Accounting Hedges | Credit Default Swap | Written credit derivatives
Gross Derivative Assets
Gross Derivative Assets	0	0
Gross Derivative Liabilities
Gross Derivative Liabilities	0	0
Qualifying Accounting Hedges | Total return swaps/options | Purchased credit derivatives
Gross Derivative Assets
Gross Derivative Assets	0	0
Gross Derivative Liabilities
Gross Derivative Liabilities	0	0
Qualifying Accounting Hedges | Total return swaps/options | Written credit derivatives
Gross Derivative Assets
Gross Derivative Assets	0	0
Gross Derivative Liabilities
Gross Derivative Liabilities	$ 0	$ 0

Derivatives - Offsetting Assets

Derivatives - Offsetting Assets (Details) - USD ($) $ in Millions	Jun. 30, 2018	Dec. 31, 2017
Offsetting Assets [Line Items]
Derivative assets, after netting	$ 32,200	$ 25,600
Other gross derivative assets	13,000	12,200
Derivative assets	45,210	37,762
Less: Financial instruments collateral	(19,200)	(11,200)
Total net derivative assets	26,000	26,600
Over-the-counter
Offsetting Assets [Line Items]
Total gross derivative assets, before netting	325,300	320,700
Less: Legally enforceable master netting agreements and cash collateral received	(295,800)	(296,900)
Exchange-traded
Offsetting Assets [Line Items]
Total gross derivative assets, before netting	12,100	9,800
Less: Legally enforceable master netting agreements and cash collateral received	(10,500)	(8,600)
Over-the-counter cleared
Offsetting Assets [Line Items]
Total gross derivative assets, before netting	10,200	8,900
Less: Legally enforceable master netting agreements and cash collateral received	(9,100)	(8,300)
Interest rate contracts | Over-the-counter
Offsetting Assets [Line Items]
Total gross derivative assets, before netting	182,000	211,700
Interest rate contracts | Over-the-counter cleared
Offsetting Assets [Line Items]
Total gross derivative assets, before netting	3,200	1,900
Foreign exchange risk | Over-the-counter
Offsetting Assets [Line Items]
Total gross derivative assets, before netting	104,600	78,700
Foreign exchange risk | Over-the-counter cleared
Offsetting Assets [Line Items]
Total gross derivative assets, before netting	1,100	900
Equity contracts | Over-the-counter
Offsetting Assets [Line Items]
Total gross derivative assets, before netting	27,000	18,300
Equity contracts | Exchange-traded
Offsetting Assets [Line Items]
Total gross derivative assets, before netting	11,000	9,100
Commodity contracts | Over-the-counter
Offsetting Assets [Line Items]
Total gross derivative assets, before netting	3,600	2,900
Commodity contracts | Exchange-traded
Offsetting Assets [Line Items]
Total gross derivative assets, before netting	1,100	700
Credit derivatives
Offsetting Assets [Line Items]
Total gross derivative assets, before netting	49	46
Credit derivatives | Over-the-counter
Offsetting Assets [Line Items]
Total gross derivative assets, before netting	8,100	9,100
Credit derivatives | Over-the-counter cleared
Offsetting Assets [Line Items]
Total gross derivative assets, before netting	$ 5,900	$ 6,100

Derivatives - Offsetting Liabil

Derivatives - Offsetting Liabilities (Details) - USD ($) $ in Millions	Jun. 30, 2018	Dec. 31, 2017
Offsetting Liabilities [Line Items]
Derivative liabilities, after netting	$ 22,000	$ 23,100
Other gross derivative liabilities	11,600	11,200
Derivative liabilities	33,605	34,300
Less: Financial instruments collateral	(9,200)	(10,400)
Total net derivative liabilities	24,400	23,900
Over-the-counter
Offsetting Liabilities [Line Items]
Total gross derivative liabilities, before netting	311,300	317,000
Less: Legally enforceable master netting agreements and cash collateral paid	(290,400)	(294,600)
Exchange-traded
Offsetting Liabilities [Line Items]
Total gross derivative liabilities, before netting	11,500	9,300
Less: Legally enforceable master netting agreements and cash collateral paid	(10,500)	(8,600)
Over-the-counter cleared
Offsetting Liabilities [Line Items]
Total gross derivative liabilities, before netting	9,400	8,500
Less: Legally enforceable master netting agreements and cash collateral paid	(9,300)	(8,500)
Interest rate contracts | Over-the-counter
Offsetting Liabilities [Line Items]
Total gross derivative liabilities, before netting	177,600	206,000
Interest rate contracts | Over-the-counter cleared
Offsetting Liabilities [Line Items]
Total gross derivative liabilities, before netting	2,700	1,800
Foreign exchange risk | Over-the-counter
Offsetting Liabilities [Line Items]
Total gross derivative liabilities, before netting	104,000	80,800
Foreign exchange risk | Over-the-counter cleared
Offsetting Liabilities [Line Items]
Total gross derivative liabilities, before netting	900	700
Equity contracts | Over-the-counter
Offsetting Liabilities [Line Items]
Total gross derivative liabilities, before netting	16,200	16,200
Equity contracts | Exchange-traded
Offsetting Liabilities [Line Items]
Total gross derivative liabilities, before netting	10,300	8,500
Commodity contracts | Over-the-counter
Offsetting Liabilities [Line Items]
Total gross derivative liabilities, before netting	5,000	4,400
Commodity contracts | Exchange-traded
Offsetting Liabilities [Line Items]
Total gross derivative liabilities, before netting	1,200	800
Credit derivatives
Offsetting Liabilities [Line Items]
Total gross derivative liabilities, before netting	2	3
Credit derivatives | Over-the-counter
Offsetting Liabilities [Line Items]
Total gross derivative liabilities, before netting	8,500	9,600
Credit derivatives | Over-the-counter cleared
Offsetting Liabilities [Line Items]
Total gross derivative liabilities, before netting	$ 5,800	$ 6,000

Derivatives - Gains and Losses

Derivatives - Gains and Losses on Derivatives Designated as Fair Value Hedges (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Effect of Fair Value Hedges on Results of Operations [Abstract]
Derivative	$ (1,937)	$ 1,093	$ (3,951)	$ 483
Hedged Item	1,756	(1,229)	3,676	(833)
Hedge Ineffectiveness		(136)		(350)
Interest rate risk on long-term debt | Interest expense
Effect of Fair Value Hedges on Results of Operations [Abstract]
Derivative	(869)	272	(3,174)	(478)
Hedged Item	821	(422)	3,057	144
Hedge Ineffectiveness		(150)		(334)
Gain (loss) on derivatives	25		(39)
Interest rate risk on long-term debt | Other income
Effect of Fair Value Hedges on Results of Operations [Abstract]
Gain (loss) on derivatives	(1,000)		(576)
Interest rate and foreign currency risk on long-term debt
Effect of Fair Value Hedges on Results of Operations [Abstract]
Hedge ineffectiveness and amounts excluded from effectiveness testing	(83)		(130)
Interest rate and foreign currency risk on long-term debt | Interest expense
Effect of Fair Value Hedges on Results of Operations [Abstract]
Derivative	(1,067)	901	(745)	1,024
Hedged Item	934	(877)	588	(1,010)
Hedge Ineffectiveness		24		14
Gain (loss) on derivatives		(124)		(281)
Interest rate and foreign currency risk on long-term debt | Other income
Effect of Fair Value Hedges on Results of Operations [Abstract]
Gain (loss) on derivatives		1,000		1,300
Interest rate risk on AFS securities | Interest income
Effect of Fair Value Hedges on Results of Operations [Abstract]
Derivative	(1)	(80)	(32)	(63)
Hedged Item	$ 1	70	$ 31	33
Hedge Ineffectiveness		$ (10)		$ (30)

Derivatives - Designated Fair V

Derivatives - Designated Fair Value Hedged Assets (Liabilities) (Details) $ in Millions	Jun. 30, 2018USD ($)
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Hedged liability, long-term debt, carrying value	$ (133,177)
Hedged liability, long-term debt, cumulative fair value adjustments	1,894
Hedged asset, available-for-sale securities, carrying value	954
Hedged asset, available-for-sale securities, cumulative fair value adjustments	(48)
hedged asset, fair value hedge, amortized cost	$ 949

Derivatives - Narrative (Detail

Derivatives - Narrative (Details) - USD ($) $ in Millions	6 Months Ended
	Jun. 30, 2018	Dec. 31, 2017	Jun. 30, 2017	Dec. 31, 2016
Derivative [Line Items]
Shareholders’ equity	$ 264,216	$ 267,146	$ 270,660	$ 266,195
Net losses in AOCI expected to be reclassified, after tax	292
Net losses in AOCI expected to be reclassified	$ 383
Terminated cash flow hedges, forecasted transaction hedging period	7 years
Terminated cash flow hedges, maximum forecasted transaction hedging period	18 years
Credit derivatives
Derivative [Line Items]
Derivative asset	$ 49	46
Derivative liability	2	3
Cash and securities held as collateral	88,400	77,200
Cash and securities collateral posted	56,800	59,200
Collateral not yet posted	2,300
Aggregate fair value of derivative liability	0	0
Credit derivatives | Bank of America, N.A.
Derivative [Line Items]
Collateral not yet posted	1,500
Interest rate risk on AFS securities
Derivative [Line Items]
Long-term debt from discontinued hedging relationships cumulative increase (decrease)	900
Available-for-sale securities from discontinued hedging relationships cumulative increase (decrease)	39
Foreign Mortgage-backed Securities and Foreign Securities
Derivative [Line Items]
Transfer of mortgage-backed securities to third-party trust	6,000	6,000
Gross cash proceeds from transfer of securities	6,000	6,000
Fair value of derecognized assets	5,700	6,100
Derivatives
Derivative [Line Items]
Shareholders’ equity	(1,330)	$ (831)	$ (763)	$ (895)
AOCI before tax	$ (1,700)

Derivatives - Derivatives Desig

Derivatives - Derivatives Designated as Cash Flow and Net Investment Hedges (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Cash flow hedges
Cash flow hedges
Gains (Losses) Recognized in Accumulated OCI on Derivatives	$ (71)		$ (495)
Gains (Losses) in Income Reclassified from Accumulated OCI	(33)		(56)
Cash Flow and Net Investment Hedges
Gains (Losses) Recognized in Accumulated OCI on Derivatives		$ 70		$ 61
Gains (Losses) in Income Reclassified from Accumulated OCI		(79)		(149)
Interest rate risk on variable-rate assets | Cash flow hedges
Cash flow hedges
Gains (Losses) Recognized in Accumulated OCI on Derivatives	(71)		(499)
Gains (Losses) in Income Reclassified from Accumulated OCI	(33)		(83)
Cash Flow and Net Investment Hedges
Gains (Losses) Recognized in Accumulated OCI on Derivatives		64		27
Gains (Losses) in Income Reclassified from Accumulated OCI		(108)		(220)
Price risk on restricted stock awards | Cash flow hedges
Cash flow hedges
Gains (Losses) Recognized in Accumulated OCI on Derivatives	0		4
Gains (Losses) in Income Reclassified from Accumulated OCI	0		27
Cash Flow and Net Investment Hedges
Gains (Losses) Recognized in Accumulated OCI on Derivatives		6		34
Gains (Losses) in Income Reclassified from Accumulated OCI		29		71
Foreign exchange risk | Net investment hedges
Net investment hedges
Gains (Losses) Recognized in Accumulated OCI on Derivatives	923		679
Gains (Losses) in Income Reclassified from Accumulated OCI	0		(1)
Cash Flow and Net Investment Hedges
Gains (Losses) Recognized in Accumulated OCI on Derivatives		(464)		(1,114)
Gains (Losses) in Income Reclassified from Accumulated OCI		1,928		1,798
Amounts excluded from effectiveness testing and recognized in other income	$ 24	$ (33)	$ 29	$ (48)

Derivatives - Other Risk Manage

Derivatives - Other Risk Management Derivatives (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Interest rate lock commitments
Derivative Instruments, Gain (Loss) [Line Items]
Gain (loss) on derivatives not designated as hedging	$ 14	$ 60	$ 28	$ 116
Mortgage banking income | Interest rate risk on mortgage activities
Derivative Instruments, Gain (Loss) [Line Items]
Gain (loss) on derivatives not designated as hedging	(26)	55	(161)	31
Other income | Credit risk on loans
Derivative Instruments, Gain (Loss) [Line Items]
Gain (loss) on derivatives not designated as hedging	(2)	(1)	(5)	(3)
Other income | Interest rate and foreign currency risk on ALM activities
Derivative Instruments, Gain (Loss) [Line Items]
Gain (loss) on derivatives not designated as hedging	$ 702	$ 238	$ 563	$ (52)

Derivatives - Sales and Trading

Derivatives - Sales and Trading Revenue (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Trading Activity, Gains and Losses, Net [Line Items]
Sales and trading revenue	$ 2,315	$ 1,956	$ 5,014	$ 4,287
Brokerage commissions and asset management fee revenue | Global Markets
Trading Activity, Gains and Losses, Net [Line Items]
Sales and trading revenue	420	514	897	1,000
Trading Securities
Trading Activity, Gains and Losses, Net [Line Items]
Sales and trading revenue	3,337	3,159	7,386	7,009
Trading Securities | Trading Account Profits
Trading Activity, Gains and Losses, Net [Line Items]
Sales and trading revenue	2,184	1,743	4,887	3,920
Trading Securities | Net Interest Income
Trading Activity, Gains and Losses, Net [Line Items]
Sales and trading revenue	595	697	1,271	1,577
Trading Securities | Other
Trading Activity, Gains and Losses, Net [Line Items]
Sales and trading revenue	558	719	1,228	1,512
Trading Securities | Interest rate risk
Trading Activity, Gains and Losses, Net [Line Items]
Sales and trading revenue	661	669	1,594	1,471
Trading Securities | Interest rate risk | Trading Account Profits
Trading Activity, Gains and Losses, Net [Line Items]
Sales and trading revenue	348	219	888	502
Trading Securities | Interest rate risk | Net Interest Income
Trading Activity, Gains and Losses, Net [Line Items]
Sales and trading revenue	314	375	639	817
Trading Securities | Interest rate risk | Other
Trading Activity, Gains and Losses, Net [Line Items]
Sales and trading revenue	(1)	75	67	152
Trading Securities | Foreign exchange risk
Trading Activity, Gains and Losses, Net [Line Items]
Sales and trading revenue	385	349	786	714
Trading Securities | Foreign exchange risk | Trading Account Profits
Trading Activity, Gains and Losses, Net [Line Items]
Sales and trading revenue	392	347	796	715
Trading Securities | Foreign exchange risk | Net Interest Income
Trading Activity, Gains and Losses, Net [Line Items]
Sales and trading revenue	(8)	(1)	(13)	(4)
Trading Securities | Foreign exchange risk | Other
Trading Activity, Gains and Losses, Net [Line Items]
Sales and trading revenue	1	3	3	3
Trading Securities | Equity risk
Trading Activity, Gains and Losses, Net [Line Items]
Sales and trading revenue	1,293	1,096	2,770	2,179
Trading Securities | Equity risk | Trading Account Profits
Trading Activity, Gains and Losses, Net [Line Items]
Sales and trading revenue	1,097	775	2,249	1,447
Trading Securities | Equity risk | Net Interest Income
Trading Activity, Gains and Losses, Net [Line Items]
Sales and trading revenue	(202)	(155)	(327)	(230)
Trading Securities | Equity risk | Other
Trading Activity, Gains and Losses, Net [Line Items]
Sales and trading revenue	398	476	848	962
Trading Securities | Credit risk
Trading Activity, Gains and Losses, Net [Line Items]
Sales and trading revenue	907	992	2,058	2,451
Trading Securities | Credit risk | Trading Account Profits
Trading Activity, Gains and Losses, Net [Line Items]
Sales and trading revenue	284	371	828	1,121
Trading Securities | Credit risk | Net Interest Income
Trading Activity, Gains and Losses, Net [Line Items]
Sales and trading revenue	487	473	959	984
Trading Securities | Credit risk | Other
Trading Activity, Gains and Losses, Net [Line Items]
Sales and trading revenue	136	148	271	346
Trading Securities | Other risk
Trading Activity, Gains and Losses, Net [Line Items]
Sales and trading revenue	91	53	178	194
Trading Securities | Other risk | Trading Account Profits
Trading Activity, Gains and Losses, Net [Line Items]
Sales and trading revenue	63	31	126	135
Trading Securities | Other risk | Net Interest Income
Trading Activity, Gains and Losses, Net [Line Items]
Sales and trading revenue	4	5	13	10
Trading Securities | Other risk | Other
Trading Activity, Gains and Losses, Net [Line Items]
Sales and trading revenue	$ 24	$ 17	$ 39	$ 49

Derivatives - Credit Derivative

Derivatives - Credit Derivatives (Details) - USD ($) $ in Millions	Jun. 30, 2018	Dec. 31, 2017
Carrying Value of Credit Derivatives
Total	$ 343,800	$ 346,000
Carrying Value of Credit-related Notes
Less than One Year	3	12
One to Three Years	0	4
Three to Five Years	9	41
Over Five Years	2,138	2,237
Total	2,150	2,294
Credit Default Swap | Written credit derivatives
Carrying Value of Credit Derivatives
Less than One Year	53	207
One to Three Years	480	456
Three to Five Years	1,408	545
Over Five Years	2,381	2,378
Total	4,322	3,586
Maximum Payout/Notional
Less than One Year	43,838	100,700
One to Three Years	157,285	165,323
Three to Five Years	169,138	146,179
Over Five Years	37,336	35,999
Total	407,597	448,201
Total return swaps/options | Written credit derivatives
Carrying Value of Credit Derivatives
Less than One Year	309	180
One to Three Years	28	0
Three to Five Years	0	0
Over Five Years	0	3
Total	337	183
Maximum Payout/Notional
Less than One Year	73,007	51,145
One to Three Years	2,051	3,095
Three to Five Years	39	143
Over Five Years	212	840
Total	75,309	55,223
Credit derivatives | Written credit derivatives
Carrying Value of Credit Derivatives
Less than One Year	362	387
One to Three Years	508	456
Three to Five Years	1,408	545
Over Five Years	2,381	2,381
Total	4,659	3,769
Maximum Payout/Notional
Less than One Year	116,845	151,845
One to Three Years	159,336	168,418
Three to Five Years	169,177	146,322
Over Five Years	37,548	36,839
Total	482,906	503,424
Investment grade
Carrying Value of Credit-related Notes
Less than One Year	0	0
One to Three Years	0	0
Three to Five Years	2	7
Over Five Years	435	689
Total	437	696
Investment grade | Credit Default Swap | Written credit derivatives
Carrying Value of Credit Derivatives
Less than One Year	1	4
One to Three Years	42	3
Three to Five Years	427	61
Over Five Years	462	245
Total	932	313
Maximum Payout/Notional
Less than One Year	20,037	61,388
One to Three Years	115,539	115,480
Three to Five Years	123,451	107,081
Over Five Years	22,070	21,579
Total	281,097	305,528
Investment grade | Total return swaps/options | Written credit derivatives
Carrying Value of Credit Derivatives
Less than One Year	71	30
One to Three Years	0	0
Three to Five Years	0	0
Over Five Years	0	0
Total	71	30
Maximum Payout/Notional
Less than One Year	55,557	37,394
One to Three Years	1,672	2,581
Three to Five Years	0	0
Over Five Years	136	143
Total	57,365	40,118
Non-investment grade
Carrying Value of Credit-related Notes
Less than One Year	3	12
One to Three Years	0	4
Three to Five Years	7	34
Over Five Years	1,703	1,548
Total	1,713	1,598
Non-investment grade | Credit Default Swap | Written credit derivatives
Carrying Value of Credit Derivatives
Less than One Year	52	203
One to Three Years	438	453
Three to Five Years	981	484
Over Five Years	1,919	2,133
Total	3,390	3,273
Maximum Payout/Notional
Less than One Year	23,801	39,312
One to Three Years	41,746	49,843
Three to Five Years	45,687	39,098
Over Five Years	15,266	14,420
Total	126,500	142,673
Non-investment grade | Total return swaps/options | Written credit derivatives
Carrying Value of Credit Derivatives
Less than One Year	238	150
One to Three Years	28	0
Three to Five Years	0	0
Over Five Years	0	3
Total	266	153
Maximum Payout/Notional
Less than One Year	17,450	13,751
One to Three Years	379	514
Three to Five Years	39	143
Over Five Years	76	697
Total	$ 17,944	$ 15,105

Derivatives - Credit-related Co

Derivatives - Credit-related Contingent Features and Collateral (Details) $ in Millions	Jun. 30, 2018USD ($)
Derivative [Line Items]
Additional collateral required to be posted upon downgrade, one incremental notch	$ 643
Additional collateral required to be posted upon downgrade, second incremental notch	289
Credit derivatives
Derivative [Line Items]
Derivative liability subject to unilateral termination upon downgrade, one incremental notch	184
Derivative liability subject to unilateral termination upon downgrade, second incremental notch	614
Collateral posted subject to unilateral termination upon downgrade, one incremental notch	115
Collateral posted subject to unilateral termination upon downgrade, second incremental notch	479
Bank of America, N.A.
Derivative [Line Items]
Additional collateral required to be posted upon downgrade, one incremental notch	322
Additional collateral required to be posted upon downgrade, second incremental notch	$ 247

Derivatives - Derivative Valuat

Derivatives - Derivative Valuation Adjustments (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017	Dec. 31, 2017
Gross
Derivative assets (CVA)	$ 139	$ 97	$ 115	$ 258
Derivative assets/liabilities (FVA)	28	27	(9)	76
Derivative liabilities (DVA)	(159)	(128)	(43)	(278)
Net
Derivative assets (CVA)	127	52	145	78
Derivative assets/liabilities (FVA)	(18)	41	(19)	97
Derivative liabilities (DVA)	(159)	$ (125)	(53)	$ (218)
Cumulative credit valuation adjustment	562		562		$ 677
Cumulative funding valuation adjustment	145		145		136
Cumulative debit valuation adjustment	$ 407		$ 407		$ 450

Securities - Debt Securities (D

Securities - Debt Securities (Details) - USD ($) $ in Millions	3 Months Ended
	Jun. 30, 2018	Dec. 31, 2017
Available-for-sale Debt Securities:
Amortized Cost	$ 269,848	$ 304,671
Gross Unrealized Gains	584	1,078
Gross Unrealized Losses	(8,313)	(3,118)
Fair Value	262,119	302,631
Other Debt Securities, Carried at Fair Value:
Amortized Cost	12,853	12,273
Gross Unrealized Gains	306	252
Gross Unrealized Losses	(22)	(39)
Fair Value	13,137	12,486
Debt securities carried at fair value:
Amortized Cost	282,701	316,944
Gross Unrealized Gains	890	1,330
Gross Unrealized Losses	(8,335)	(3,157)
Debt securities carried at fair value	275,256	315,117
Held-to-maturity Securities:
Amortized Cost	163,013	125,013
Gross Unrealized Gains	131	111
Gross Unrealized Losses	(4,913)	(1,825)
Held-to-maturity, fair value	158,231	123,299
Debt securities:
Amortized Cost	445,714	441,957
Gross Unrealized Gains	1,021	1,441
Gross Unrealized Losses	(13,248)	(4,982)
Fair Value	433,487	438,416
Available-for-sale Equity Securities:
Availabl-for-sale debt securities reclassified to held to maturity	25,000
Securities, pledged as collateral	42,400	35,800
Nonperforming Financing Receivable
Available-for-sale Debt Securities:
Fair Value	92	99
FNMA
Debt securities carried at fair value:
Amortized Cost	165,600	163,600
Debt securities carried at fair value	160,600	162,100
FHLMC
Debt securities carried at fair value:
Amortized Cost	52,800	50,300
Debt securities carried at fair value	51,200	50,000
Other assets
Available-for-sale Equity Securities:
Amortized Cost		27
Gross Unrealized Gains		0
Gross Unrealized Losses		(2)
Fair Value		25
Mortgage-backed securities
Available-for-sale Debt Securities:
Amortized Cost	184,934	217,239
Gross Unrealized Gains	402	840
Gross Unrealized Losses	(6,167)	(1,993)
Fair Value	179,169	216,086
Other Debt Securities, Carried at Fair Value:
Fair Value	2,535	2,769
Debt securities carried at fair value:
Debt securities carried at fair value	181,704
Agency
Available-for-sale Debt Securities:
Amortized Cost	162,301	194,119
Gross Unrealized Gains	125	506
Gross Unrealized Losses	(5,426)	(1,696)
Fair Value	157,000	192,929
Debt securities carried at fair value:
Debt securities carried at fair value	157,000
Agency-collateralized mortgage obligations
Available-for-sale Debt Securities:
Amortized Cost	6,194	6,846
Gross Unrealized Gains	13	39
Gross Unrealized Losses	(172)	(81)
Fair Value	6,035	6,804
Other Debt Securities, Carried at Fair Value:
Fair Value	0	5
Debt securities carried at fair value:
Debt securities carried at fair value	6,035
Commercial
Available-for-sale Debt Securities:
Amortized Cost	14,156	13,864
Gross Unrealized Gains	2	28
Gross Unrealized Losses	(558)	(208)
Fair Value	13,600	13,684
Debt securities carried at fair value:
Debt securities carried at fair value	13,600
Non-agency residential
Available-for-sale Debt Securities:
Amortized Cost	2,283	2,410
Gross Unrealized Gains	262	267
Gross Unrealized Losses	(11)	(8)
Fair Value	2,534	2,669
Other Debt Securities, Carried at Fair Value:
Fair Value	2,535	$ 2,764
Debt securities carried at fair value:
Debt securities carried at fair value	$ 5,069
Non-agency residential | Prime
Available-for-sale Equity Securities:
Available-for-sale securities, percent held by rating	62.00%	62.00%
Non-agency residential | Alt-A
Available-for-sale Equity Securities:
Available-for-sale securities, percent held by rating	13.00%	13.00%
Non-agency residential | Subprime
Available-for-sale Equity Securities:
Available-for-sale securities, percent held by rating	25.00%	25.00%
U.S. Treasury and agency securities
Available-for-sale Debt Securities:
Amortized Cost	$ 54,758	$ 54,523
Gross Unrealized Gains	12	18
Gross Unrealized Losses	(2,036)	(1,018)
Fair Value	52,734	53,523
Debt securities carried at fair value:
Debt securities carried at fair value	52,734
Non-U.S. securities
Available-for-sale Debt Securities:
Amortized Cost	6,659	6,669
Gross Unrealized Gains	7	9
Gross Unrealized Losses	(1)	(1)
Fair Value	6,665	6,677
Other Debt Securities, Carried at Fair Value:
Fair Value	10,400	9,488
Debt securities carried at fair value:
Debt securities carried at fair value	17,065
Other taxable securities, substantially all asset-backed securities
Available-for-sale Debt Securities:
Amortized Cost	4,412	5,699
Gross Unrealized Gains	81	73
Gross Unrealized Losses	(7)	(2)
Fair Value	4,486	5,770
Other Debt Securities, Carried at Fair Value:
Fair Value	202	229
Debt securities carried at fair value:
Debt securities carried at fair value	4,688
Total taxable securities
Available-for-sale Debt Securities:
Amortized Cost	250,763	284,130
Gross Unrealized Gains	502	940
Gross Unrealized Losses	(8,211)	(3,014)
Fair Value	243,054	282,056
Debt securities carried at fair value:
Debt securities carried at fair value	256,191
Tax-exempt securities
Available-for-sale Debt Securities:
Amortized Cost	19,085	20,541
Gross Unrealized Gains	82	138
Gross Unrealized Losses	(102)	(104)
Fair Value	19,065	$ 20,575
Debt securities carried at fair value:
Debt securities carried at fair value	19,065
Debt securities
Debt securities carried at fair value:
Debt securities carried at fair value	$ 275,256

Securities - Narrative (Details

Securities - Narrative (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017	Dec. 31, 2017
Schedule of Available-for-sale Securities [Line Items]
Fair Value	$ 262,119		$ 262,119		$ 302,631
Equity securities, fair value	946		946
Equity securities, cost	241		241
Unrealized mark-to-market net gains (losses)	28	$ 83	69	$ 199
Realized net gains (losses)	15	$ (14)	9	$ (118)
Nonperforming Financing Receivable
Schedule of Available-for-sale Securities [Line Items]
Fair Value	92		92		$ 99
Debt securities
Schedule of Available-for-sale Securities [Line Items]
Shareholders’ equity	(5,800)		(5,800)
Accumulated other comprehensive income tax expense (benefit)	$ (1,900)		$ (1,900)

Securities - Other Debt Securit

Securities - Other Debt Securities Carried at Fair Value (Details) - USD ($) $ in Millions	Jun. 30, 2018	Dec. 31, 2017
Other Debt Securities Carried at Fair Value [Line Items]
Other debt securities carried at fair value	$ 13,137	$ 12,486
Mortgage-backed securities
Other Debt Securities Carried at Fair Value [Line Items]
Other debt securities carried at fair value	2,535	2,769
Agency-collateralized mortgage obligations
Other Debt Securities Carried at Fair Value [Line Items]
Other debt securities carried at fair value	0	5
Non-agency residential
Other Debt Securities Carried at Fair Value [Line Items]
Other debt securities carried at fair value	2,535	2,764
Non-U.S. securities
Other Debt Securities Carried at Fair Value [Line Items]
Other debt securities carried at fair value	10,400	9,488
Other taxable securities, substantially all asset-backed securities
Other Debt Securities Carried at Fair Value [Line Items]
Other debt securities carried at fair value	$ 202	$ 229

Securities - Gains and Losses o

Securities - Gains and Losses on Sales of AFS Debt Securities (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Available-for-sale Securities, Gross Realized Gain (Loss) [Abstract]
Gross gains	$ 1	$ 102	$ 3	$ 156
Gross losses	0	1	0	3
Net gains on sales of AFS debt securities	1	101	3	153
Income tax expense attributable to realized net gains on sales of AFS debt securities	$ 1	$ 38	$ 1	$ 58

Securities - Temporarily Impair

Securities - Temporarily Impaired and Other-than-temporarily Impaired AFS Debt Securities (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017	Dec. 31, 2017
Fair Value
Less than Twelve Months	$ 133,190		$ 133,190
Twelve Months or Longer	93,633		93,633
Total	226,823		226,823
Gross Unrealized Losses
Less than Twelve Months	(3,996)		(3,996)
Twelve Months or Longer	(4,317)		(4,317)
Total	(8,313)		(8,313)
Credit-related OTTI losses	8	$ 6	11	$ 33
Other than temporary impairment losses recorded on debt securities	0	0	0	0
Cumulative credit losses on debt securities held	264	$ 284	264	$ 284
Debt securities
Fair Value
Less than Twelve Months					$ 111,645
Twelve Months or Longer					110,109
Total					221,754
Gross Unrealized Losses
Less than Twelve Months					(693)
Twelve Months or Longer					(2,425)
Total					(3,118)
Temporarily impaired AFS debt securities
Fair Value
Less than Twelve Months	133,040		133,040
Twelve Months or Longer	93,633		93,633
Total	226,673		226,673
Gross Unrealized Losses
Less than Twelve Months	(3,991)		(3,991)
Twelve Months or Longer	(4,317)		(4,317)
Total	(8,308)		(8,308)
Temporarily impaired AFS debt securities | Debt securities
Fair Value
Less than Twelve Months					111,587
Twelve Months or Longer					110,109
Total					221,696
Gross Unrealized Losses
Less than Twelve Months					(692)
Twelve Months or Longer					(2,425)
Total					(3,117)
Temporarily impaired AFS debt securities | Mortgage-backed securities
Fair Value
Less than Twelve Months	105,308		105,308		82,188
Twelve Months or Longer	65,588		65,588		78,882
Total	170,896		170,896		161,070
Gross Unrealized Losses
Less than Twelve Months	(3,067)		(3,067)		(438)
Twelve Months or Longer	(3,095)		(3,095)		(1,554)
Total	(6,162)		(6,162)		(1,992)
Temporarily impaired AFS debt securities | Agency
Fair Value
Less than Twelve Months	93,123		93,123		73,535
Twelve Months or Longer	59,404		59,404		72,612
Total	152,527		152,527		146,147
Gross Unrealized Losses
Less than Twelve Months	(2,718)		(2,718)		(352)
Twelve Months or Longer	(2,708)		(2,708)		(1,344)
Total	(5,426)		(5,426)		(1,696)
Temporarily impaired AFS debt securities | Agency-collateralized mortgage obligations
Fair Value
Less than Twelve Months	3,706		3,706		2,743
Twelve Months or Longer	1,698		1,698		1,684
Total	5,404		5,404		4,427
Gross Unrealized Losses
Less than Twelve Months	(93)		(93)		(29)
Twelve Months or Longer	(79)		(79)		(52)
Total	(172)		(172)		(81)
Temporarily impaired AFS debt securities | Commercial
Fair Value
Less than Twelve Months	8,325		8,325		5,575
Twelve Months or Longer	4,486		4,486		4,586
Total	12,811		12,811		10,161
Gross Unrealized Losses
Less than Twelve Months	(250)		(250)		(50)
Twelve Months or Longer	(308)		(308)		(158)
Total	(558)		(558)		(208)
Temporarily impaired AFS debt securities | Non-agency residential
Fair Value
Less than Twelve Months	154		154		335
Twelve Months or Longer	0		0		0
Total	154		154		335
Gross Unrealized Losses
Less than Twelve Months	(6)		(6)		(7)
Twelve Months or Longer	0		0		0
Total	(6)		(6)		(7)
Temporarily impaired AFS debt securities | U.S. Treasury and agency securities
Fair Value
Less than Twelve Months	27,277		27,277		27,537
Twelve Months or Longer	23,856		23,856		24,035
Total	51,133		51,133		51,572
Gross Unrealized Losses
Less than Twelve Months	(918)		(918)		(251)
Twelve Months or Longer	(1,118)		(1,118)		(767)
Total	(2,036)		(2,036)		(1,018)
Temporarily impaired AFS debt securities | Non-U.S. securities
Fair Value
Less than Twelve Months	0		0		772
Twelve Months or Longer	86		86		0
Total	86		86		772
Gross Unrealized Losses
Less than Twelve Months	0		0		(1)
Twelve Months or Longer	(1)		(1)		0
Total	(1)		(1)		(1)
Temporarily impaired AFS debt securities | Other taxable securities, substantially all asset-backed securities
Fair Value
Less than Twelve Months	152		152		0
Twelve Months or Longer	113		113		92
Total	265		265		92
Gross Unrealized Losses
Less than Twelve Months	(4)		(4)		0
Twelve Months or Longer	(3)		(3)		(2)
Total	(7)		(7)		(2)
Temporarily impaired AFS debt securities | Total taxable securities
Fair Value
Less than Twelve Months	132,737		132,737		110,497
Twelve Months or Longer	89,643		89,643		103,009
Total	222,380		222,380		213,506
Gross Unrealized Losses
Less than Twelve Months	(3,989)		(3,989)		(690)
Twelve Months or Longer	(4,217)		(4,217)		(2,323)
Total	(8,206)		(8,206)		(3,013)
Temporarily impaired AFS debt securities | Tax-exempt securities
Fair Value
Less than Twelve Months	303		303		1,090
Twelve Months or Longer	3,990		3,990		7,100
Total	4,293		4,293		8,190
Gross Unrealized Losses
Less than Twelve Months	(2)		(2)		(2)
Twelve Months or Longer	(100)		(100)		(102)
Total	(102)		(102)		(104)
Other-than-temporarily impaired AFS debt securities | Non-agency residential
Fair Value
Less than Twelve Months	150		150		58
Twelve Months or Longer	0		0		0
Total	150		150		58
Gross Unrealized Losses
Less than Twelve Months	(5)		(5)		(1)
Twelve Months or Longer	0		0		0
Total	$ (5)		$ (5)		$ (1)

Securities - Significant Assump

Securities - Significant Assumptions (Details) - Non-agency residential	Jun. 30, 2018
Weighted Average
Significant Assumptions:
Prepayment speed	13.00%
Loss severity	19.90%
Life default rate	17.90%
Weighted Average | Prime
Significant Assumptions:
Loss severity	16.80%
Life default rate	15.60%
Weighted Average | Alt-A
Significant Assumptions:
Loss severity	17.10%
Life default rate	17.30%
Weighted Average | Subprime
Significant Assumptions:
Loss severity	26.90%
Life default rate	20.00%
10th Percentile
Significant Assumptions:
Prepayment speed	3.20%
Loss severity	9.00%
Life default rate	1.50%
90th Percentile
Significant Assumptions:
Prepayment speed	21.40%
Loss severity	36.90%
Life default rate	67.10%

Securities - Maturities of Debt

Securities - Maturities of Debt Securities Carried at Fair Value and Held-to-maturity Debt Securities (Details) - USD ($) $ in Millions	Jun. 30, 2018	Dec. 31, 2017
Held-to-maturity Securities, Debt Maturities, Net Carrying Amount [Abstract]
Due in One Year or Less, Amount	$ 4
Due in One Year or Less, Yield	3.36%
Due after One Year through Five Years, Amount	$ 63
Due after One Year through Five Years, Yield	3.56%
Due after Five Years through Ten Years, Amount	$ 1,427
Due after Five Years though Ten Years, Yield	2.78%
Due after Ten Years, Amount	$ 161,519
Due after Ten Years, Yield	3.15%
Amortized Cost	$ 163,013	$ 125,013
Total, Yield	3.15%
Available-for-sale Securities, Debt Maturities, Fair Value, Fiscal Year Maturity [Abstract]
Debt securities carried at fair value	$ 275,256	315,117
Held-to-maturity Securities, Debt Maturities, Fair Value [Abstract]
Due in One Year or Less, Amount	4
Due after One Year through Five Years, Amount	63
Due after Five Years though Ten Years, Amount	1,363
Due after Ten Years, Amount	156,801
Held-to-maturity Securities, Fair Value	158,231	$ 123,299
Mortgage-backed securities
Available-for-sale Securities, Debt Maturities, Amortized Cost Basis, Fiscal Year Maturity [Abstract]
Due in One Year or Less, Amount	$ 56
Due in One Year or Less, Yield	9.33%
Due after One Year through Five Years, Amount	$ 2,181
Due after One Year through Five Years, Yield	2.24%
Due after Five Years though Ten Years, Amount	$ 11,596
Due after Five Years though Ten Years, Yield	2.48%
Due after Ten Years, Amount	$ 173,382
Due after Ten Years, Yield	3.43%
Total, Amount	$ 187,215
Total, Yield	3.36%
Available-for-sale Securities, Debt Maturities, Fair Value, Fiscal Year Maturity [Abstract]
Due in One Year or Less, Amount	$ 56
Due after One Year through Five Years, Amount	2,134
Due after Five Years though Ten Years, Amount	11,139
Due after Ten Years, Amount	168,375
Debt securities carried at fair value	181,704
Agency
Available-for-sale Securities, Debt Maturities, Amortized Cost Basis, Fiscal Year Maturity [Abstract]
Due in One Year or Less, Amount	$ 2
Due in One Year or Less, Yield	3.50%
Due after One Year through Five Years, Amount	$ 26
Due after One Year through Five Years, Yield	3.98%
Due after Five Years though Ten Years, Amount	$ 492
Due after Five Years though Ten Years, Yield	2.61%
Due after Ten Years, Amount	$ 161,781
Due after Ten Years, Yield	3.26%
Total, Amount	$ 162,301
Total, Yield	3.26%
Available-for-sale Securities, Debt Maturities, Fair Value, Fiscal Year Maturity [Abstract]
Due in One Year or Less, Amount	$ 2
Due after One Year through Five Years, Amount	26
Due after Five Years though Ten Years, Amount	484
Due after Ten Years, Amount	156,488
Debt securities carried at fair value	157,000
Agency-collateralized mortgage obligations
Available-for-sale Securities, Debt Maturities, Amortized Cost Basis, Fiscal Year Maturity [Abstract]
Due in One Year or Less, Amount	$ 0
Due in One Year or Less, Yield	0.00%
Due after One Year through Five Years, Amount	$ 0
Due after One Year through Five Years, Yield	0.00%
Due after Five Years though Ten Years, Amount	$ 31
Due after Five Years though Ten Years, Yield	2.55%
Due after Ten Years, Amount	$ 6,163
Due after Ten Years, Yield	3.17%
Total, Amount	$ 6,194
Total, Yield	3.17%
Available-for-sale Securities, Debt Maturities, Fair Value, Fiscal Year Maturity [Abstract]
Due in One Year or Less, Amount	$ 0
Due after One Year through Five Years, Amount	0
Due after Five Years though Ten Years, Amount	30
Due after Ten Years, Amount	6,005
Debt securities carried at fair value	6,035
Commercial
Available-for-sale Securities, Debt Maturities, Amortized Cost Basis, Fiscal Year Maturity [Abstract]
Due in One Year or Less, Amount	$ 54
Due in One Year or Less, Yield	9.55%
Due after One Year through Five Years, Amount	$ 2,155
Due after One Year through Five Years, Yield	2.22%
Due after Five Years though Ten Years, Amount	$ 11,052
Due after Five Years though Ten Years, Yield	2.48%
Due after Ten Years, Amount	$ 895
Due after Ten Years, Yield	2.81%
Total, Amount	$ 14,156
Total, Yield	2.49%
Available-for-sale Securities, Debt Maturities, Fair Value, Fiscal Year Maturity [Abstract]
Due in One Year or Less, Amount	$ 54
Due after One Year through Five Years, Amount	2,108
Due after Five Years though Ten Years, Amount	10,592
Due after Ten Years, Amount	846
Debt securities carried at fair value	13,600
Non-agency residential
Available-for-sale Securities, Debt Maturities, Amortized Cost Basis, Fiscal Year Maturity [Abstract]
Due in One Year or Less, Amount	$ 0
Due in One Year or Less, Yield	0.00%
Due after One Year through Five Years, Amount	$ 0
Due after One Year through Five Years, Yield	0.00%
Due after Five Years though Ten Years, Amount	$ 21
Due after Five Years though Ten Years, Yield	0.01%
Due after Ten Years, Amount	$ 4,543
Due after Ten Years, Yield	9.82%
Total, Amount	$ 4,564
Total, Yield	9.77%
Available-for-sale Securities, Debt Maturities, Fair Value, Fiscal Year Maturity [Abstract]
Due in One Year or Less, Amount	$ 0
Due after One Year through Five Years, Amount	0
Due after Five Years though Ten Years, Amount	33
Due after Ten Years, Amount	5,036
Debt securities carried at fair value	5,069
U.S. Treasury and agency securities
Available-for-sale Securities, Debt Maturities, Amortized Cost Basis, Fiscal Year Maturity [Abstract]
Due in One Year or Less, Amount	$ 542
Due in One Year or Less, Yield	0.45%
Due after One Year through Five Years, Amount	$ 32,638
Due after One Year through Five Years, Yield	1.47%
Due after Five Years though Ten Years, Amount	$ 21,549
Due after Five Years though Ten Years, Yield	2.24%
Due after Ten Years, Amount	$ 29
Due after Ten Years, Yield	2.70%
Total, Amount	$ 54,758
Total, Yield	1.76%
Available-for-sale Securities, Debt Maturities, Fair Value, Fiscal Year Maturity [Abstract]
Due in One Year or Less, Amount	$ 542
Due after One Year through Five Years, Amount	31,381
Due after Five Years though Ten Years, Amount	20,783
Due after Ten Years, Amount	28
Debt securities carried at fair value	52,734
Non-U.S. securities
Available-for-sale Securities, Debt Maturities, Amortized Cost Basis, Fiscal Year Maturity [Abstract]
Due in One Year or Less, Amount	$ 15,118
Due in One Year or Less, Yield	0.79%
Due after One Year through Five Years, Amount	$ 1,787
Due after One Year through Five Years, Yield	1.53%
Due after Five Years though Ten Years, Amount	$ 2
Due after Five Years though Ten Years, Yield	3.56%
Due after Ten Years, Amount	$ 140
Due after Ten Years, Yield	6.55%
Total, Amount	$ 17,047
Total, Yield	0.91%
Available-for-sale Securities, Debt Maturities, Fair Value, Fiscal Year Maturity [Abstract]
Due in One Year or Less, Amount	$ 15,121
Due after One Year through Five Years, Amount	1,798
Due after Five Years though Ten Years, Amount	2
Due after Ten Years, Amount	144
Debt securities carried at fair value	17,065
Other taxable securities, substantially all asset-backed securities
Available-for-sale Securities, Debt Maturities, Amortized Cost Basis, Fiscal Year Maturity [Abstract]
Due in One Year or Less, Amount	$ 576
Due in One Year or Less, Yield	3.39%
Due after One Year through Five Years, Amount	$ 2,886
Due after One Year through Five Years, Yield	3.34%
Due after Five Years though Ten Years, Amount	$ 874
Due after Five Years though Ten Years, Yield	3.24%
Due after Ten Years, Amount	$ 260
Due after Ten Years, Yield	8.56%
Total, Amount	$ 4,596
Total, Yield	3.62%
Available-for-sale Securities, Debt Maturities, Fair Value, Fiscal Year Maturity [Abstract]
Due in One Year or Less, Amount	$ 571
Due after One Year through Five Years, Amount	2,905
Due after Five Years though Ten Years, Amount	916
Due after Ten Years, Amount	296
Debt securities carried at fair value	4,688
Total taxable securities
Available-for-sale Securities, Debt Maturities, Amortized Cost Basis, Fiscal Year Maturity [Abstract]
Due in One Year or Less, Amount	$ 16,292
Due in One Year or Less, Yield	0.90%
Due after One Year through Five Years, Amount	$ 39,492
Due after One Year through Five Years, Yield	1.65%
Due after Five Years though Ten Years, Amount	$ 34,021
Due after Five Years though Ten Years, Yield	2.35%
Due after Ten Years, Amount	$ 173,811
Due after Ten Years, Yield	3.44%
Total, Amount	$ 263,616
Total, Yield	2.87%
Available-for-sale Securities, Debt Maturities, Fair Value, Fiscal Year Maturity [Abstract]
Due in One Year or Less, Amount	$ 16,290
Due after One Year through Five Years, Amount	38,218
Due after Five Years though Ten Years, Amount	32,840
Due after Ten Years, Amount	168,843
Debt securities carried at fair value	256,191
Tax-exempt securities
Available-for-sale Securities, Debt Maturities, Amortized Cost Basis, Fiscal Year Maturity [Abstract]
Due in One Year or Less, Amount	$ 894
Due in One Year or Less, Yield	1.71%
Due after One Year through Five Years, Amount	$ 8,332
Due after One Year through Five Years, Yield	2.27%
Due after Five Years though Ten Years, Amount	$ 7,252
Due after Five Years though Ten Years, Yield	2.22%
Due after Ten Years, Amount	$ 2,607
Due after Ten Years, Yield	2.64%
Total, Amount	$ 19,085
Total, Yield	2.28%
Available-for-sale Securities, Debt Maturities, Fair Value, Fiscal Year Maturity [Abstract]
Due in One Year or Less, Amount	$ 894
Due after One Year through Five Years, Amount	8,347
Due after Five Years though Ten Years, Amount	7,230
Due after Ten Years, Amount	2,594
Debt securities carried at fair value	19,065
Debt securities
Available-for-sale Securities, Debt Maturities, Amortized Cost Basis, Fiscal Year Maturity [Abstract]
Due in One Year or Less, Amount	$ 17,186
Due in One Year or Less, Yield	0.94%
Due after One Year through Five Years, Amount	$ 47,824
Due after One Year through Five Years, Yield	1.76%
Due after Five Years though Ten Years, Amount	$ 41,273
Due after Five Years though Ten Years, Yield	2.32%
Due after Ten Years, Amount	$ 176,418
Due after Ten Years, Yield	3.42%
Total, Amount	$ 282,701
Total, Yield	2.83%
Available-for-sale Securities, Debt Maturities, Fair Value, Fiscal Year Maturity [Abstract]
Due in One Year or Less, Amount	$ 17,184
Due after One Year through Five Years, Amount	46,565
Due after Five Years though Ten Years, Amount	40,070
Due after Ten Years, Amount	171,437
Debt securities carried at fair value	$ 275,256

Outstanding Loans and Leases -

Outstanding Loans and Leases - Past Due (Details) - USD ($) $ in Millions	Jun. 30, 2018	Dec. 31, 2017
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans and leases	$ 935,824	$ 936,749
Percentage of outstandings, total outstanding	100.00%	100.00%
Loans and leases, measured at fair value	$ 6,227	$ 5,710
Loans and leases, pledged as collateral	55,000	40,100
Loans pledged to secure borrowings	150,100	160,300
Direct/Indirect Consumer | Nonperforming Financing Receivable
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonperforming loans	44	43
Residential Mortgage | Federal National Mortgage Association Certificates and Obligations (FNMA) and Federal Home Loan Mortgage Corporation Certificates and Obligations (FHLMC)
Financing Receivable, Recorded Investment, Past Due [Line Items]
Long-term credit protection agreements, amount covered	6,000	6,300
Estimate of Fair Value Measurement
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans and leases	$ 6,227	$ 5,710
Percentage of outstandings, total outstanding	0.67%	0.61%
Purchased Credit-impaired
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans and leases	$ 9,585	$ 10,717
Percentage of outstandings, total outstanding	1.02%	1.14%
Consumer Portfolio Segment
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans and leases	$ 449,577	$ 455,276
Consumer Portfolio Segment | Residential Mortgage
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans and leases, measured at fair value	489	567
Consumer Portfolio Segment | Home equity lines of credit
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans and leases, measured at fair value	359	361
Consumer Portfolio Segment | Carrying Value
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans and leases	448,729	454,348
Consumer Portfolio Segment | Estimate of Fair Value Measurement
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans and leases	848	928
Consumer Portfolio Segment | Purchased Credit-impaired
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans and leases	9,585	10,717
Consumer real estate | Nonperforming Financing Receivable
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonperforming loans	2,100	2,300
Consumer real estate | Core Portfolio Residential Mortgage
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans and leases	184,662	176,618
Consumer real estate | Core Portfolio Residential Mortgage | Fully Insured Loans
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans and leases	17,265	18,545
Consumer real estate | Core Portfolio, Home Equity Financing Receivable
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans and leases	41,525	44,245
Consumer real estate | Core Portfolio, Home Equity Financing Receivable | Fully Insured Loans
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans and leases	0	0
Consumer real estate | Non-core Portfolio, Residential Financing Receivable
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans and leases	15,695	19,192
Consumer real estate | Non-core Portfolio, Residential Financing Receivable | Pay option
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans and leases	1,200	1,400
Consumer real estate | Non-core Portfolio, Residential Financing Receivable | Fully Insured Loans
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans and leases	4,279	5,196
Consumer real estate | Non-core Portfolio, Home Equity Financing Receivable
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans and leases	9,684	10,783
Consumer real estate | Non-core Portfolio, Home Equity Financing Receivable | Fully Insured Loans
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans and leases	0	0
Consumer real estate | Carrying Value | Core Portfolio Residential Mortgage
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans and leases	184,662	176,618
Consumer real estate | Carrying Value | Core Portfolio, Home Equity Financing Receivable
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans and leases	41,525	44,245
Consumer real estate | Carrying Value | Non-core Portfolio, Residential Financing Receivable
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans and leases	22,902	27,193
Consumer real estate | Carrying Value | Non-core Portfolio, Home Equity Financing Receivable
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans and leases	12,062	13,499
Consumer real estate | Estimate of Fair Value Measurement
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans and leases	848	928
Consumer real estate | Purchased Credit-impaired | Non-core Portfolio, Residential Financing Receivable
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans and leases	7,207	8,001
Consumer real estate | Purchased Credit-impaired | Non-core Portfolio, Home Equity Financing Receivable
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans and leases	2,378	2,716
Credit card and other consumer | Credit Card Receivable | United States
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans and leases	94,790	96,285
Credit card and other consumer | Direct/Indirect Consumer
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans and leases	92,621	96,342
Credit card and other consumer | Direct/Indirect Consumer | Dealer Financial Services Loans
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans and leases	50,200	52,400
Credit card and other consumer | Direct/Indirect Consumer | Unsecured Consumed Lending Loans
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans and leases	410	469
Credit card and other consumer | Direct/Indirect Consumer | Securities Based Lending Loans | United States
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans and leases	38,400	39,800
Credit card and other consumer | Direct/Indirect Consumer | Securities Based Lending Loans | Non United States
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans and leases	2,800	3,000
Credit card and other consumer | Direct/Indirect Consumer | Other Loans
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans and leases	769	684
Credit card and other consumer | Other consumer
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans and leases	167	166
Credit card and other consumer | Carrying Value | Credit Card Receivable | United States
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans and leases	94,790	96,285
Credit card and other consumer | Carrying Value | Direct/Indirect Consumer
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans and leases	92,621	96,342
Credit card and other consumer | Carrying Value | Other consumer
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans and leases	167	166
Commercial Portfolio Segment
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans and leases	486,247	481,473
Commercial Portfolio Segment | United States
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans and leases	289,741	284,836
Loans and leases, measured at fair value	3,500	2,600
Commercial Portfolio Segment | Non United States
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans and leases	94,450	97,792
Loans and leases, measured at fair value	1,900	2,200
Commercial Portfolio Segment | Commercial Real Estate
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans and leases	61,073	58,298
Commercial Portfolio Segment | Commercial Real Estate | United States
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans and leases	57,100	54,800
Commercial Portfolio Segment | Commercial Real Estate | Non United States
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans and leases	4,000	3,500
Commercial Portfolio Segment | Commercial Lease Financing
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans and leases	21,399	22,116
Commercial Portfolio Segment | Small Business Commercial | United States
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans and leases	14,205	13,649
Commercial Portfolio Segment | Carrying Value
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans and leases	480,868	476,691
Commercial Portfolio Segment | Carrying Value | United States
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans and leases	289,741	284,836
Commercial Portfolio Segment | Carrying Value | Non United States
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans and leases	94,450	97,792
Commercial Portfolio Segment | Carrying Value | Commercial Real Estate
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans and leases	61,073	58,298
Commercial Portfolio Segment | Carrying Value | Commercial Lease Financing
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans and leases	21,399	22,116
Commercial Portfolio Segment | Carrying Value | Small Business Commercial
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans and leases	14,205	13,649
Commercial Portfolio Segment | Estimate of Fair Value Measurement
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans and leases	5,379	4,782
30 to 59 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans and leases	$ 3,728	$ 4,433
Percentage of outstandings	0.40%	0.48%
30 to 59 Days Past Due | Consumer Portfolio Segment
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans and leases	$ 3,078	$ 3,581
30 to 59 Days Past Due | Consumer real estate | Fully Insured Loans
Financing Receivable, Recorded Investment, Past Due [Line Items]
Non-performing troubled debt with no change in repayment terms at time of discharge, 90 days or more past due	665	850
30 to 59 Days Past Due | Consumer real estate | Nonperforming Financing Receivable
Financing Receivable, Recorded Investment, Past Due [Line Items]
Non-performing troubled debt with no change in repayment terms at time of discharge, 90 days or more past due	242	253
30 to 59 Days Past Due | Consumer real estate | Core Portfolio Residential Mortgage
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans and leases	1,064	1,242
30 to 59 Days Past Due | Consumer real estate | Core Portfolio, Home Equity Financing Receivable
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans and leases	205	215
30 to 59 Days Past Due | Consumer real estate | Non-core Portfolio, Residential Financing Receivable
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans and leases	840	1,028
30 to 59 Days Past Due | Consumer real estate | Non-core Portfolio, Home Equity Financing Receivable
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans and leases	186	224
30 to 59 Days Past Due | Credit card and other consumer | Credit Card Receivable | United States
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans and leases	501	542
30 to 59 Days Past Due | Credit card and other consumer | Direct/Indirect Consumer
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans and leases	282	330
30 to 59 Days Past Due | Credit card and other consumer | Other consumer
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans and leases	0	0
30 to 59 Days Past Due | Commercial Portfolio Segment
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans and leases	650	852
30 to 59 Days Past Due | Commercial Portfolio Segment | United States
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans and leases	441	547
30 to 59 Days Past Due | Commercial Portfolio Segment | Non United States
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans and leases	43	52
30 to 59 Days Past Due | Commercial Portfolio Segment | Commercial Real Estate
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans and leases	59	48
30 to 59 Days Past Due | Commercial Portfolio Segment | Commercial Lease Financing
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans and leases	46	110
30 to 59 Days Past Due | Commercial Portfolio Segment | Small Business Commercial
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans and leases	61	95
60 to 89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans and leases	$ 1,925	$ 1,895
Percentage of outstandings	0.21%	0.20%
60 to 89 Days Past Due | Consumer Portfolio Segment
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans and leases	$ 1,224	$ 1,527
60 to 89 Days Past Due | Consumer real estate | Fully Insured Loans
Financing Receivable, Recorded Investment, Past Due [Line Items]
Non-performing troubled debt with no change in repayment terms at time of discharge, 90 days or more past due	307	386
60 to 89 Days Past Due | Consumer real estate | Nonperforming Financing Receivable
Financing Receivable, Recorded Investment, Past Due [Line Items]
Non-performing troubled debt with no change in repayment terms at time of discharge, 90 days or more past due	195	195
60 to 89 Days Past Due | Consumer real estate | Core Portfolio Residential Mortgage
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans and leases	259	321
60 to 89 Days Past Due | Consumer real estate | Core Portfolio, Home Equity Financing Receivable
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans and leases	102	108
60 to 89 Days Past Due | Consumer real estate | Non-core Portfolio, Residential Financing Receivable
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans and leases	361	468
60 to 89 Days Past Due | Consumer real estate | Non-core Portfolio, Home Equity Financing Receivable
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans and leases	96	121
60 to 89 Days Past Due | Credit card and other consumer | Credit Card Receivable | United States
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans and leases	329	405
60 to 89 Days Past Due | Credit card and other consumer | Direct/Indirect Consumer
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans and leases	77	104
60 to 89 Days Past Due | Credit card and other consumer | Other consumer
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans and leases	0	0
60 to 89 Days Past Due | Commercial Portfolio Segment
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans and leases	701	368
60 to 89 Days Past Due | Commercial Portfolio Segment | United States
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans and leases	213	244
60 to 89 Days Past Due | Commercial Portfolio Segment | Non United States
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans and leases	389	1
60 to 89 Days Past Due | Commercial Portfolio Segment | Commercial Real Estate
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans and leases	0	10
60 to 89 Days Past Due | Commercial Portfolio Segment | Commercial Lease Financing
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans and leases	59	68
60 to 89 Days Past Due | Commercial Portfolio Segment | Small Business Commercial
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans and leases	40	45
90 Days or More Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans and leases	$ 6,280	$ 7,135
Percentage of outstandings	0.67%	0.76%
90 Days or More Past Due | Consumer Portfolio Segment
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans and leases	$ 5,405	$ 6,564
90 Days or More Past Due | Consumer real estate | Fully Insured Loans
Financing Receivable, Recorded Investment, Past Due [Line Items]
Non-performing troubled debt with no change in repayment terms at time of discharge, 90 days or more past due	2,500	3,200
90 Days or More Past Due | Consumer real estate | Core Portfolio Residential Mortgage
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans and leases	886	1,040
90 Days or More Past Due | Consumer real estate | Core Portfolio, Home Equity Financing Receivable
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans and leases	457	473
90 Days or More Past Due | Consumer real estate | Non-core Portfolio, Residential Financing Receivable
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans and leases	2,672	3,535
90 Days or More Past Due | Consumer real estate | Non-core Portfolio, Home Equity Financing Receivable
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans and leases	488	572
90 Days or More Past Due | Credit card and other consumer | Credit Card Receivable | United States
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans and leases	865	900
90 Days or More Past Due | Credit card and other consumer | Direct/Indirect Consumer
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans and leases	37	44
90 Days or More Past Due | Credit card and other consumer | Other consumer
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans and leases	0	0
90 Days or More Past Due | Commercial Portfolio Segment
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans and leases	875	571
90 Days or More Past Due | Commercial Portfolio Segment | United States
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans and leases	685	425
90 Days or More Past Due | Commercial Portfolio Segment | Non United States
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans and leases	0	3
90 Days or More Past Due | Commercial Portfolio Segment | Commercial Real Estate
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans and leases	76	29
90 Days or More Past Due | Commercial Portfolio Segment | Commercial Lease Financing
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans and leases	30	26
90 Days or More Past Due | Commercial Portfolio Segment | Small Business Commercial
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans and leases	84	88
Total Past Due 30 Days or More
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans and leases	$ 11,933	$ 13,463
Percentage of outstandings	1.28%	1.44%
Total Past Due 30 Days or More | Consumer Portfolio Segment
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans and leases	$ 9,707	$ 11,672
Total Past Due 30 Days or More | Consumer real estate | Core Portfolio Residential Mortgage
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans and leases	2,209	2,603
Total Past Due 30 Days or More | Consumer real estate | Core Portfolio, Home Equity Financing Receivable
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans and leases	764	796
Total Past Due 30 Days or More | Consumer real estate | Non-core Portfolio, Residential Financing Receivable
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans and leases	3,873	5,031
Total Past Due 30 Days or More | Consumer real estate | Non-core Portfolio, Home Equity Financing Receivable
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans and leases	770	917
Total Past Due 30 Days or More | Credit card and other consumer | Credit Card Receivable | United States
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans and leases	1,695	1,847
Total Past Due 30 Days or More | Credit card and other consumer | Direct/Indirect Consumer
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans and leases	396	478
Total Past Due 30 Days or More | Credit card and other consumer | Other consumer
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans and leases	0	0
Total Past Due 30 Days or More | Commercial Portfolio Segment
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans and leases	2,226	1,791
Total Past Due 30 Days or More | Commercial Portfolio Segment | United States
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans and leases	1,339	1,216
Total Past Due 30 Days or More | Commercial Portfolio Segment | Non United States
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans and leases	432	56
Total Past Due 30 Days or More | Commercial Portfolio Segment | Commercial Real Estate
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans and leases	135	87
Total Past Due 30 Days or More | Commercial Portfolio Segment | Commercial Lease Financing
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans and leases	135	204
Total Past Due 30 Days or More | Commercial Portfolio Segment | Small Business Commercial
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans and leases	185	228
Total Current or Less Than 30 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans and leases	$ 908,079	$ 906,859
Percentage of outstandings, total outstanding	97.03%	96.81%
Total Current or Less Than 30 Days Past Due | Consumer Portfolio Segment
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans and leases	$ 429,437	$ 431,959
Total Current or Less Than 30 Days Past Due | Consumer real estate | Core Portfolio Residential Mortgage
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans and leases	182,453	174,015
Total Current or Less Than 30 Days Past Due | Consumer real estate | Core Portfolio, Home Equity Financing Receivable
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans and leases	40,761	43,449
Total Current or Less Than 30 Days Past Due | Consumer real estate | Non-core Portfolio, Residential Financing Receivable
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans and leases	11,822	14,161
Total Current or Less Than 30 Days Past Due | Consumer real estate | Non-core Portfolio, Home Equity Financing Receivable
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans and leases	8,914	9,866
Total Current or Less Than 30 Days Past Due | Credit card and other consumer | Credit Card Receivable | United States
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans and leases	93,095	94,438
Total Current or Less Than 30 Days Past Due | Credit card and other consumer | Direct/Indirect Consumer
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans and leases	92,225	95,864
Total Current or Less Than 30 Days Past Due | Credit card and other consumer | Other consumer
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans and leases	167	166
Total Current or Less Than 30 Days Past Due | Commercial Portfolio Segment
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans and leases	478,642	474,900
Total Current or Less Than 30 Days Past Due | Commercial Portfolio Segment | United States
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans and leases	288,402	283,620
Total Current or Less Than 30 Days Past Due | Commercial Portfolio Segment | Non United States
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans and leases	94,018	97,736
Total Current or Less Than 30 Days Past Due | Commercial Portfolio Segment | Commercial Real Estate
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans and leases	60,938	58,211
Total Current or Less Than 30 Days Past Due | Commercial Portfolio Segment | Commercial Lease Financing
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans and leases	21,264	21,912
Total Current or Less Than 30 Days Past Due | Commercial Portfolio Segment | Small Business Commercial
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans and leases	$ 14,020	$ 13,421

Outstanding Loans and Leases 64

Outstanding Loans and Leases - Nonperforming, Narrative (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended		12 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017	Dec. 31, 2017
Financing Receivable, Recorded Investment, Past Due [Line Items]
Threshold period past due for nonperforming status of financing receivables			90 days		90 days
Loans and leases	$ 935,824		$ 935,824		$ 936,749
Proceeds from sales of loans originally classified as held for investment and instruments from related securitization activities			7,172	$ 5,317
Purchased credit impaired loans sold	51	$ 204	160	204
Recoveries of loans and leases previously charged off	382	442	767	818
90 Days or More Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans and leases	6,280		6,280		7,135
Consumer Portfolio Segment
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans and leases	449,577		449,577		455,276
Consumer Portfolio Segment | 90 Days or More Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans and leases	5,405		5,405		6,564
Consumer real estate
Financing Receivable, Recorded Investment, Past Due [Line Items]
Recoveries of loans and leases previously charged off	130	167	$ 277	290
Consumer real estate | Junior Lien Home Equity Financing Receivable
Financing Receivable, Recorded Investment, Past Due [Line Items]
Threshold period past due for nonperforming status of financing receivables			90 days
Consumer real estate | Residential Mortgage
Financing Receivable, Recorded Investment, Past Due [Line Items]
Gain (loss) on the sale of loans and leases receivable	572
Consumer real estate | Chapter Seven Bankruptcy
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans and leases	1,000		$ 1,000
Nonperforming Financing Receivable
Financing Receivable, Recorded Investment, Past Due [Line Items]
Transfer of nonperforming loans to held-for-sale			2	198
Nonperforming Financing Receivable | Junior Lien Home Equity Financing Receivable
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans and leases	266		$ 266		$ 330
Nonperforming Financing Receivable | Chapter Seven Bankruptcy
Financing Receivable, Recorded Investment, Past Due [Line Items]
Threshold period past due for nonperforming status of financing receivables			90 days
Non-performing troubled debt with no change in repayment terms at time of discharge, current with contractual payments	$ 139		$ 139
Nonperforming loans discharged more than twelve months prior (greater than)	57.00%		57.00%
Nonperforming loans discharged more than twenty four months prior (greater than)	50.00%		50.00%
Nonperforming Financing Receivable | Chapter Seven Bankruptcy | 90 Days or More Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Non-performing troubled debt with no change in repayment terms at time of discharge, 90 days or more past due	$ 102		$ 102
Nonperforming Financing Receivable | Consumer Portfolio Segment
Financing Receivable, Recorded Investment, Past Due [Line Items]
Proceeds from sales of loans originally classified as held for investment and instruments from related securitization activities	168	323	546	465
Purchased credit impaired loans sold	51	204	160	204
Recoveries of loans and leases previously charged off	7	3	27	14
Gain (loss) on the sale of loans and leases receivable	10	$ 6	26	$ 12
Nonperforming Financing Receivable | Consumer real estate | Chapter Seven Bankruptcy
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans and leases	$ 263		$ 263

Outstanding Loans and Leases 65

Outstanding Loans and Leases - Nonperforming, Credit Quality (Details) - USD ($) $ in Millions	6 Months Ended	12 Months Ended
	Jun. 30, 2018	Dec. 31, 2017
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonperforming loans and leases	$ 5,897	$ 6,470
Accruing past due 90 days or more	$ 3,689	$ 4,415
Threshold period past due for nonperforming status of financing receivables	90 days	90 days
Residential Mortgage
Financing Receivable, Recorded Investment, Past Due [Line Items]
Accruing past due 90 days or more	$ 742	$ 1,000
Consumer Portfolio Segment
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonperforming loans and leases	4,639	5,166
Accruing past due 90 days or more	3,383	4,170
Consumer real estate | Core Portfolio Residential Mortgage
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonperforming loans and leases	1,052	1,087
Accruing past due 90 days or more	344	417
Consumer real estate | Core Portfolio, Home Equity Financing Receivable
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonperforming loans and leases	1,077	1,079
Accruing past due 90 days or more	0	0
Consumer real estate | Non-core Portfolio, Residential Financing Receivable
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonperforming loans and leases	1,088	1,389
Accruing past due 90 days or more	2,139	2,813
Consumer real estate | Non-core Portfolio, Home Equity Financing Receivable
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonperforming loans and leases	1,375	1,565
Accruing past due 90 days or more	0	0
Credit card and other consumer | Credit Card Receivable | United States
Financing Receivable, Recorded Investment, Past Due [Line Items]
Accruing past due 90 days or more	865	900
Credit card and other consumer | Direct/Indirect Consumer
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonperforming loans and leases	47	46
Accruing past due 90 days or more	35	40
Credit card and other consumer | Other consumer
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonperforming loans and leases	0	0
Accruing past due 90 days or more	0	0
Commercial Portfolio Segment
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonperforming loans and leases	1,258	1,304
Accruing past due 90 days or more	$ 306	245
Threshold period past due for nonperforming status of financing receivables	90 days
Commercial Portfolio Segment | United States
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonperforming loans and leases	$ 881	814
Accruing past due 90 days or more	221	144
Commercial Portfolio Segment | Non United States
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonperforming loans and leases	170	299
Accruing past due 90 days or more	0	3
Commercial Portfolio Segment | Commercial Real Estate
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonperforming loans and leases	117	112
Accruing past due 90 days or more	0	4
Commercial Portfolio Segment | Commercial Lease Financing
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonperforming loans and leases	34	24
Accruing past due 90 days or more	12	19
Commercial Portfolio Segment | Small Business Commercial
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonperforming loans and leases	56	55
Accruing past due 90 days or more	73	75
Federal Housing Administration | Residential Mortgage
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonperforming loans and leases	$ 1,700	$ 2,200

Outstanding Loans and Leases 66

Outstanding Loans and Leases - Consumer Real Estate - Credit Quality Indicators (Details) - USD ($) $ in Millions	Jun. 30, 2018	Dec. 31, 2017
Financing Receivable, Recorded Investment [Line Items]
Loans and leases	$ 935,824	$ 936,749
Estimate of Fair Value Measurement
Financing Receivable, Recorded Investment [Line Items]
Loans and leases	6,227	5,710
Consumer real estate | Estimate of Fair Value Measurement
Financing Receivable, Recorded Investment [Line Items]
Loans and leases	848	928
Consumer real estate | Core Portfolio Residential Mortgage
Financing Receivable, Recorded Investment [Line Items]
Loans and leases	184,662	176,618
Consumer real estate | Non-core Residential Mortgage
Financing Receivable, Recorded Investment [Line Items]
Loans and leases	15,695	19,192
Consumer real estate | Non-core Residential Mortgage | Pay option
Financing Receivable, Recorded Investment [Line Items]
Loans and leases	1,200	1,400
Consumer real estate | Residential Mortgage PCI
Financing Receivable, Recorded Investment [Line Items]
Loans and leases	7,207	8,001
Consumer real estate | Residential Mortgage PCI | Pay option
Financing Receivable, Recorded Investment [Line Items]
Loans and leases	1,100	1,200
Consumer real estate | Core Portfolio Home Equity
Financing Receivable, Recorded Investment [Line Items]
Loans and leases	41,525	44,245
Consumer real estate | Non-core Home Equity
Financing Receivable, Recorded Investment [Line Items]
Loans and leases	9,684	10,783
Consumer real estate | Home Equity PCI
Financing Receivable, Recorded Investment [Line Items]
Loans and leases	2,378	2,716
Consumer real estate | Less than 620 | Core Portfolio Residential Mortgage
Financing Receivable, Recorded Investment [Line Items]
Loans and leases	2,128	2,234
Consumer real estate | Less than 620 | Non-core Residential Mortgage
Financing Receivable, Recorded Investment [Line Items]
Loans and leases	1,890	2,390
Consumer real estate | Less than 620 | Residential Mortgage PCI
Financing Receivable, Recorded Investment [Line Items]
Loans and leases	1,673	1,941
Consumer real estate | Less than 620 | Core Portfolio Home Equity
Financing Receivable, Recorded Investment [Line Items]
Loans and leases	1,112	1,169
Consumer real estate | Less than 620 | Non-core Home Equity
Financing Receivable, Recorded Investment [Line Items]
Loans and leases	1,858	2,098
Consumer real estate | Less than 620 | Home Equity PCI
Financing Receivable, Recorded Investment [Line Items]
Loans and leases	393	452
Consumer real estate | Greater than or equal to 620 and less than 680 | Core Portfolio Residential Mortgage
Financing Receivable, Recorded Investment [Line Items]
Loans and leases	4,236	4,531
Consumer real estate | Greater than or equal to 620 and less than 680 | Non-core Residential Mortgage
Financing Receivable, Recorded Investment [Line Items]
Loans and leases	1,690	2,086
Consumer real estate | Greater than or equal to 620 and less than 680 | Residential Mortgage PCI
Financing Receivable, Recorded Investment [Line Items]
Loans and leases	1,431	1,657
Consumer real estate | Greater than or equal to 620 and less than 680 | Core Portfolio Home Equity
Financing Receivable, Recorded Investment [Line Items]
Loans and leases	2,152	2,371
Consumer real estate | Greater than or equal to 620 and less than 680 | Non-core Home Equity
Financing Receivable, Recorded Investment [Line Items]
Loans and leases	2,090	2,393
Consumer real estate | Greater than or equal to 620 and less than 680 | Home Equity PCI
Financing Receivable, Recorded Investment [Line Items]
Loans and leases	390	466
Consumer real estate | Greater than or equal to 680 and less than 740 | Core Portfolio Residential Mortgage
Financing Receivable, Recorded Investment [Line Items]
Loans and leases	22,803	22,934
Consumer real estate | Greater than or equal to 680 and less than 740 | Non-core Residential Mortgage
Financing Receivable, Recorded Investment [Line Items]
Loans and leases	2,759	3,519
Consumer real estate | Greater than or equal to 680 and less than 740 | Residential Mortgage PCI
Financing Receivable, Recorded Investment [Line Items]
Loans and leases	2,129	2,396
Consumer real estate | Greater than or equal to 680 and less than 740 | Core Portfolio Home Equity
Financing Receivable, Recorded Investment [Line Items]
Loans and leases	7,318	8,115
Consumer real estate | Greater than or equal to 680 and less than 740 | Non-core Home Equity
Financing Receivable, Recorded Investment [Line Items]
Loans and leases	2,484	2,723
Consumer real estate | Greater than or equal to 680 and less than 740 | Home Equity PCI
Financing Receivable, Recorded Investment [Line Items]
Loans and leases	666	786
Consumer real estate | Greater than or equal to 740 | Core Portfolio Residential Mortgage
Financing Receivable, Recorded Investment [Line Items]
Loans and leases	138,230	128,374
Consumer real estate | Greater than or equal to 740 | Non-core Residential Mortgage
Financing Receivable, Recorded Investment [Line Items]
Loans and leases	5,077	6,001
Consumer real estate | Greater than or equal to 740 | Residential Mortgage PCI
Financing Receivable, Recorded Investment [Line Items]
Loans and leases	1,974	2,007
Consumer real estate | Greater than or equal to 740 | Core Portfolio Home Equity
Financing Receivable, Recorded Investment [Line Items]
Loans and leases	30,943	32,590
Consumer real estate | Greater than or equal to 740 | Non-core Home Equity
Financing Receivable, Recorded Investment [Line Items]
Loans and leases	3,252	3,569
Consumer real estate | Greater than or equal to 740 | Home Equity PCI
Financing Receivable, Recorded Investment [Line Items]
Loans and leases	929	1,012
Consumer real estate | Less than or equal to 90 percent | Core Portfolio Residential Mortgage
Financing Receivable, Recorded Investment [Line Items]
Loans and leases	163,729	153,669
Consumer real estate | Less than or equal to 90 percent | Non-core Residential Mortgage
Financing Receivable, Recorded Investment [Line Items]
Loans and leases	9,975	12,135
Consumer real estate | Less than or equal to 90 percent | Residential Mortgage PCI
Financing Receivable, Recorded Investment [Line Items]
Loans and leases	6,289	6,872
Consumer real estate | Less than or equal to 90 percent | Core Portfolio Home Equity
Financing Receivable, Recorded Investment [Line Items]
Loans and leases	40,505	43,048
Consumer real estate | Less than or equal to 90 percent | Non-core Home Equity
Financing Receivable, Recorded Investment [Line Items]
Loans and leases	7,395	7,944
Consumer real estate | Less than or equal to 90 percent | Home Equity PCI
Financing Receivable, Recorded Investment [Line Items]
Loans and leases	1,618	1,781
Consumer real estate | Greater than 90 percent but less than or equal to 100 percent | Core Portfolio Residential Mortgage
Financing Receivable, Recorded Investment [Line Items]
Loans and leases	2,676	3,082
Consumer real estate | Greater than 90 percent but less than or equal to 100 percent | Non-core Residential Mortgage
Financing Receivable, Recorded Investment [Line Items]
Loans and leases	664	850
Consumer real estate | Greater than 90 percent but less than or equal to 100 percent | Residential Mortgage PCI
Financing Receivable, Recorded Investment [Line Items]
Loans and leases	452	559
Consumer real estate | Greater than 90 percent but less than or equal to 100 percent | Core Portfolio Home Equity
Financing Receivable, Recorded Investment [Line Items]
Loans and leases	476	549
Consumer real estate | Greater than 90 percent but less than or equal to 100 percent | Non-core Home Equity
Financing Receivable, Recorded Investment [Line Items]
Loans and leases	880	1,053
Consumer real estate | Greater than 90 percent but less than or equal to 100 percent | Home Equity PCI
Financing Receivable, Recorded Investment [Line Items]
Loans and leases	338	412
Consumer real estate | Greater than 100 percent | Core Portfolio Residential Mortgage
Financing Receivable, Recorded Investment [Line Items]
Loans and leases	992	1,322
Consumer real estate | Greater than 100 percent | Non-core Residential Mortgage
Financing Receivable, Recorded Investment [Line Items]
Loans and leases	777	1,011
Consumer real estate | Greater than 100 percent | Residential Mortgage PCI
Financing Receivable, Recorded Investment [Line Items]
Loans and leases	466	570
Consumer real estate | Greater than 100 percent | Core Portfolio Home Equity
Financing Receivable, Recorded Investment [Line Items]
Loans and leases	544	648
Consumer real estate | Greater than 100 percent | Non-core Home Equity
Financing Receivable, Recorded Investment [Line Items]
Loans and leases	1,409	1,786
Consumer real estate | Greater than 100 percent | Home Equity PCI
Financing Receivable, Recorded Investment [Line Items]
Loans and leases	422	523
Consumer real estate | Fully Insured Loans | Core Portfolio Residential Mortgage
Financing Receivable, Recorded Investment [Line Items]
Loans and leases	17,265	18,545
Consumer real estate | Fully Insured Loans | Non-core Residential Mortgage
Financing Receivable, Recorded Investment [Line Items]
Loans and leases	4,279	5,196
Consumer real estate | Fully Insured Loans | Residential Mortgage PCI
Financing Receivable, Recorded Investment [Line Items]
Loans and leases	0	0
Consumer real estate | Fully Insured Loans | Core Portfolio Home Equity
Financing Receivable, Recorded Investment [Line Items]
Loans and leases	0	0
Consumer real estate | Fully Insured Loans | Non-core Home Equity
Financing Receivable, Recorded Investment [Line Items]
Loans and leases	0	0
Consumer real estate | Fully Insured Loans | Home Equity PCI
Financing Receivable, Recorded Investment [Line Items]
Loans and leases	$ 0	$ 0

Outstanding Loans and Leases 67

Outstanding Loans and Leases - Credit Card and Other Consumer - Credit Quality Indicators (Details) - USD ($) $ in Millions	Jun. 30, 2018	Dec. 31, 2017
Financing Receivable, Recorded Investment [Line Items]
Loans and leases	$ 935,824	$ 936,749
Credit card and other consumer | Credit Card Receivable | United States
Financing Receivable, Recorded Investment [Line Items]
Loans and leases	94,790	96,285
Credit card and other consumer | Credit Card Receivable | United States | Less than 620
Financing Receivable, Recorded Investment [Line Items]
Loans and leases	4,504	4,730
Credit card and other consumer | Credit Card Receivable | United States | Greater than or equal to 620 and less than 680
Financing Receivable, Recorded Investment [Line Items]
Loans and leases	11,810	12,422
Credit card and other consumer | Credit Card Receivable | United States | Greater than or equal to 680 and less than 740
Financing Receivable, Recorded Investment [Line Items]
Loans and leases	34,852	35,656
Credit card and other consumer | Credit Card Receivable | United States | Greater than or equal to 740
Financing Receivable, Recorded Investment [Line Items]
Loans and leases	43,624	43,477
Credit card and other consumer | Credit Card Receivable | United States | Other internal credit metrics
Financing Receivable, Recorded Investment [Line Items]
Loans and leases	0	0
Credit card and other consumer | Direct/Indirect Consumer
Financing Receivable, Recorded Investment [Line Items]
Loans and leases	92,621	96,342
Securities based lending overcollateralized	41,300	42,800
Credit card and other consumer | Direct/Indirect Consumer | Less than 620
Financing Receivable, Recorded Investment [Line Items]
Loans and leases	1,588	1,680
Credit card and other consumer | Direct/Indirect Consumer | Greater than or equal to 620 and less than 680
Financing Receivable, Recorded Investment [Line Items]
Loans and leases	1,854	2,143
Credit card and other consumer | Direct/Indirect Consumer | Greater than or equal to 680 and less than 740
Financing Receivable, Recorded Investment [Line Items]
Loans and leases	11,193	12,304
Credit card and other consumer | Direct/Indirect Consumer | Greater than or equal to 740
Financing Receivable, Recorded Investment [Line Items]
Loans and leases	35,949	36,759
Credit card and other consumer | Direct/Indirect Consumer | Other internal credit metrics
Financing Receivable, Recorded Investment [Line Items]
Loans and leases	42,037	43,456
Credit card and other consumer | Other consumer
Financing Receivable, Recorded Investment [Line Items]
Loans and leases	167	166
Credit card and other consumer | Other consumer | Less than 620
Financing Receivable, Recorded Investment [Line Items]
Loans and leases	0	0
Credit card and other consumer | Other consumer | Greater than or equal to 620 and less than 680
Financing Receivable, Recorded Investment [Line Items]
Loans and leases	0	0
Credit card and other consumer | Other consumer | Greater than or equal to 680 and less than 740
Financing Receivable, Recorded Investment [Line Items]
Loans and leases	0	0
Credit card and other consumer | Other consumer | Greater than or equal to 740
Financing Receivable, Recorded Investment [Line Items]
Loans and leases	0	0
Credit card and other consumer | Other consumer | Other internal credit metrics
Financing Receivable, Recorded Investment [Line Items]
Loans and leases	$ 167	$ 166

Outstanding Loans and Leases 68

Outstanding Loans and Leases - Commercial - Credit Quality Indicators (Details) - USD ($) $ in Millions	Jun. 30, 2018	Dec. 31, 2017
Financing Receivable, Recorded Investment [Line Items]
Loans and leases	$ 935,824	$ 936,749
Estimate of Fair Value Measurement
Financing Receivable, Recorded Investment [Line Items]
Loans and leases	6,227	5,710
Commercial Portfolio Segment
Financing Receivable, Recorded Investment [Line Items]
Loans and leases	486,247	481,473
Commercial Portfolio Segment | Estimate of Fair Value Measurement
Financing Receivable, Recorded Investment [Line Items]
Loans and leases	5,379	4,782
Commercial Portfolio Segment | Commercial Real Estate
Financing Receivable, Recorded Investment [Line Items]
Loans and leases	61,073	58,298
Commercial Portfolio Segment | Commercial Lease Financing
Financing Receivable, Recorded Investment [Line Items]
Loans and leases	21,399	22,116
Commercial Portfolio Segment | Pass rated | Commercial Real Estate
Financing Receivable, Recorded Investment [Line Items]
Loans and leases	60,622	57,732
Commercial Portfolio Segment | Pass rated | Commercial Lease Financing
Financing Receivable, Recorded Investment [Line Items]
Loans and leases	20,978	21,535
Commercial Portfolio Segment | Reservable criticized | Commercial Real Estate
Financing Receivable, Recorded Investment [Line Items]
Loans and leases	451	566
Commercial Portfolio Segment | Reservable criticized | Commercial Lease Financing
Financing Receivable, Recorded Investment [Line Items]
Loans and leases	421	581
Commercial Portfolio Segment | United States
Financing Receivable, Recorded Investment [Line Items]
Loans and leases	289,741	284,836
Commercial Portfolio Segment | United States | Commercial Real Estate
Financing Receivable, Recorded Investment [Line Items]
Loans and leases	57,100	54,800
Commercial Portfolio Segment | United States | Small Business Commercial
Financing Receivable, Recorded Investment [Line Items]
Loans and leases	14,205	13,649
Commercial Portfolio Segment | United States | Pass rated
Financing Receivable, Recorded Investment [Line Items]
Loans and leases	281,622	275,904
Commercial Portfolio Segment | United States | Pass rated | Small Business Commercial
Financing Receivable, Recorded Investment [Line Items]
Loans and leases	282	322
Commercial Portfolio Segment | United States | Reservable criticized
Financing Receivable, Recorded Investment [Line Items]
Loans and leases	8,119	8,932
Commercial Portfolio Segment | United States | Reservable criticized | Small Business Commercial
Financing Receivable, Recorded Investment [Line Items]
Loans and leases	36	50
Commercial Portfolio Segment | United States | Refreshed FICO or Internal Credit Metric | Small Business Commercial | Business Card and Small Business Loan
Financing Receivable, Recorded Investment [Line Items]
Loans and leases	$ 725	$ 709
Commercial Portfolio Segment | United States | Internal Credit Metrics | Small Business Commercial
Financing Receivable, Recorded Investment [Line Items]
Percentage outstanding, current or less than 30 days past due	99.00%	98.00%
Commercial Portfolio Segment | United States | Less than 620 | Small Business Commercial
Financing Receivable, Recorded Investment [Line Items]
Loans and leases	$ 235	$ 223
Commercial Portfolio Segment | United States | Greater than or equal to 620 and less than 680 | Small Business Commercial
Financing Receivable, Recorded Investment [Line Items]
Loans and leases	639	625
Commercial Portfolio Segment | United States | Greater than or equal to 680 and less than 740 | Small Business Commercial
Financing Receivable, Recorded Investment [Line Items]
Loans and leases	1,982	1,875
Commercial Portfolio Segment | United States | Greater than or equal to 740 | Small Business Commercial
Financing Receivable, Recorded Investment [Line Items]
Loans and leases	4,134	3,713
Commercial Portfolio Segment | United States | Other internal credit metrics | Small Business Commercial
Financing Receivable, Recorded Investment [Line Items]
Loans and leases	6,897	6,841
Commercial Portfolio Segment | Non United States
Financing Receivable, Recorded Investment [Line Items]
Loans and leases	94,450	97,792
Commercial Portfolio Segment | Non United States | Commercial Real Estate
Financing Receivable, Recorded Investment [Line Items]
Loans and leases	4,000	3,500
Commercial Portfolio Segment | Non United States | Pass rated
Financing Receivable, Recorded Investment [Line Items]
Loans and leases	92,676	96,199
Commercial Portfolio Segment | Non United States | Reservable criticized
Financing Receivable, Recorded Investment [Line Items]
Loans and leases	$ 1,774	$ 1,593

Outstanding Loans and Leases 69

Outstanding Loans and Leases - Consumer Real Estate - Impaired Loans (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017	Dec. 31, 2017
Financing Receivable, Impaired [Line Items]
Loans and leases	$ 935,824		$ 935,824		$ 936,749
Consumer real estate
Financing Receivable, Impaired [Line Items]
Real estate acquired through foreclosure	263		263		236
Loans with formal foreclosure proceeding in process	3,000		3,000
Reclassified consumer real estate loans	151	$ 226	319	$ 426
Consumer real estate | Residential Mortgage
Unpaid Principal Balance
With no recorded allowance	6,544		6,544		8,856
With an allowance recorded	2,482		2,482		2,908
Total	9,026		9,026		11,764
Carrying Value
With no recorded allowance	5,223		5,223		6,870
With an allowance recorded	2,421		2,421		2,828
Total	7,644		7,644		9,698
Related Allowance	149		149		174
Average Carrying Value
With no recorded allowance	5,362	7,886	5,978	8,192
With an allowance recorded	2,482	3,647	2,597	3,723
Total	7,844	11,533	8,575	11,915
Interest Income Recognized
With no recorded allowance	50	81	115	160
With an allowance recorded	24	33	49	68
Total	74	114	164	228
Loans held for sale	1,200
Gain (loss) on the sale of loans and leases receivable	572
Consumer real estate | Home equity lines of credit
Unpaid Principal Balance
With no recorded allowance	3,545		3,545		3,622
With an allowance recorded	962		962		972
Total	4,507		4,507		4,594
Carrying Value
With no recorded allowance	1,932		1,932		1,956
With an allowance recorded	894		894		900
Total	2,826		2,826		2,856
Related Allowance	178		178		$ 174
Average Carrying Value
With no recorded allowance	1,944	1,999	1,953	2,000
With an allowance recorded	891	868	889	842
Total	2,835	2,867	2,842	2,842
Interest Income Recognized
With no recorded allowance	25	28	52	55
With an allowance recorded	6	7	12	12
Total	31	$ 35	64	$ 67
Consumer real estate | Chapter Seven Bankruptcy
Financing Receivable, Impaired [Line Items]
Loans and leases	1,000		1,000
Consumer real estate | Chapter Seven Bankruptcy | Nonperforming Financing Receivable
Financing Receivable, Impaired [Line Items]
Loans and leases	263		263
Consumer real estate | Chapter Seven Bankruptcy | Fully Insured Loans | Federal Housing Administration
Financing Receivable, Impaired [Line Items]
Loans and leases	$ 382		$ 382

Outstanding Loans and Leases 70

Outstanding Loans and Leases - Consumer Real Estate - TDRs Entered into During the Period (Details) - Consumer real estate - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Financing Receivable, Modifications [Line Items]
Unpaid Principal Balance	$ 470	$ 596	$ 1,020	$ 1,115
Carrying Value	$ 389	$ 514	$ 839	$ 946
Pre-Modification Interest Rate	4.32%	4.33%	4.25%	4.38%
Post-Modification Interest Rate	4.14%	4.19%	3.98%	4.09%
Net charge-offs	$ 15	$ 12	$ 24	$ 20
Residential Mortgage
Financing Receivable, Modifications [Line Items]
Unpaid Principal Balance	276	346	628	646
Carrying Value	$ 237	$ 313	$ 542	$ 581
Pre-Modification Interest Rate	4.24%	4.50%	4.17%	4.51%
Post-Modification Interest Rate	3.94%	4.37%	3.93%	4.34%
Home equity lines of credit
Financing Receivable, Modifications [Line Items]
Unpaid Principal Balance	$ 194	$ 250	$ 392	$ 469
Carrying Value	$ 152	$ 201	$ 297	$ 365
Pre-Modification Interest Rate	4.43%	4.11%	4.38%	4.20%
Post-Modification Interest Rate	4.42%	3.94%	4.06%	3.75%

Outstanding Loans and Leases 71

Outstanding Loans and Leases - Consumer Real Estate - Modification Programs (Details) - Consumer real estate - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Financing Receivable, Modifications [Line Items]
Total modifications	$ 389	$ 514	$ 839	$ 946
Modifications under government programs
Financing Receivable, Modifications [Line Items]
Total modifications	17	15	35	49
Modifications under proprietary programs
Financing Receivable, Modifications [Line Items]
Total modifications	92	48	331	146
Trial modifications
Financing Receivable, Modifications [Line Items]
Total modifications	242	387	379	622
Loans discharged in Chapter 7 bankruptcy
Financing Receivable, Modifications [Line Items]
Total modifications	38	64	94	129
Contractual interest rate reduction | Modifications under government programs
Financing Receivable, Modifications [Line Items]
Total modifications	9	11	17	38
Contractual interest rate reduction | Modifications under proprietary programs
Financing Receivable, Modifications [Line Items]
Total modifications	13	20	67	72
Capitalization of past due amounts | Modifications under proprietary programs
Financing Receivable, Modifications [Line Items]
Total modifications	19	9	43	21
Principal and/or interest forbearance | Modifications under government programs
Financing Receivable, Modifications [Line Items]
Total modifications	0	1	0	3
Principal and/or interest forbearance | Modifications under proprietary programs
Financing Receivable, Modifications [Line Items]
Total modifications	5	3	16	9
Other modifications | Modifications under government programs
Financing Receivable, Modifications [Line Items]
Total modifications	8	3	18	8
Other modifications | Modifications under proprietary programs
Financing Receivable, Modifications [Line Items]
Total modifications	55	$ 16	205	$ 44
Hurricane-Related Modifications | Modifications under government programs
Financing Receivable, Modifications [Line Items]
Total modifications	$ 38		$ 196

Outstanding Loans and Leases 72

Outstanding Loans and Leases - Consumer Real Estate - TDRs Entering Payment Default That Were Modified During the Preceding 12 Months (Details) - Consumer real estate $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2018USD ($)	Jun. 30, 2017USD ($)	Jun. 30, 2018USD ($)payment	Jun. 30, 2017USD ($)
Financing Receivable, Modifications [Line Items]
Number of missing payments causing default | payment			3
Trouble debt restructurings entered payment default that were modified during the preceding twelve months	$ 105	$ 114	$ 217	$ 448
Modifications under government programs
Financing Receivable, Modifications [Line Items]
Trouble debt restructurings entered payment default that were modified during the preceding twelve months	11	20	24	46
Modifications under proprietary programs
Financing Receivable, Modifications [Line Items]
Trouble debt restructurings entered payment default that were modified during the preceding twelve months	56	33	87	67
Loans discharged in Chapter 7 bankruptcy
Financing Receivable, Modifications [Line Items]
Trouble debt restructurings entered payment default that were modified during the preceding twelve months	16	15	39	77
Trial modifications
Financing Receivable, Modifications [Line Items]
Trouble debt restructurings entered payment default that were modified during the preceding twelve months	$ 22	$ 46	$ 67	$ 258

Outstanding Loans and Leases 73

Outstanding Loans and Leases - Credit Card and Other Consumer - Impaired Loans (Details) - Credit card and other consumer - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017	Dec. 31, 2017
Financing Receivable, Impaired [Line Items]
Fixed payment plan period for loans modified			60 months
Direct/Indirect Consumer
Unpaid Principal Balance
With no recorded allowance	$ 63		$ 63		$ 58
With an allowance recorded	1		1		1
Total	64		64		59
Carrying Value
With no recorded allowance	30		30		28
With an allowance recorded	1		1		1
Total	31		31		29
Related Allowance	0		0		0
Average Carrying Value
With no recorded allowance	29	$ 18	29	$ 18
With an allowance recorded	1	2	1	3
Total	30	20	30	21
Interest Income Recognized
With no recorded allowance	1	0	1	0
With an allowance recorded	0	0	0	0
Total	1	0	1	0
United States | Credit Card Receivable
Unpaid Principal Balance
With an allowance recorded	478		478		454
Total	478		478		454
Carrying Value
With an allowance recorded	486		486		461
Total	486		486		461
Related Allowance	143		143		$ 125
Average Carrying Value
With an allowance recorded	480	463	473	470
Total	480	463	473	470
Interest Income Recognized
With an allowance recorded	6	6	12	12
Total	6	6	12	12
Non United States | Credit Card Receivable
Average Carrying Value
With an allowance recorded	0		0
With an allowance recorded		78		88
Total, including loans held for sale		78		88
Total	0		0
Interest Income Recognized
With an allowance recorded	0		0
With an allowance recorded, including loans held for sale		0		1
Total, including loans held for sale		$ 0		$ 1
Total	$ 0		$ 0

Outstanding Loans and Leases 74

Outstanding Loans and Leases - Credit Card and Other Consumer - TDRs by Program Type (Details) - Credit card and other consumer - USD ($) $ in Millions	Jun. 30, 2018	Dec. 31, 2017
Financing Receivable, Modifications [Line Items]
Renegotiated TDRs	$ 517	$ 490
Percent of balances current or less than 30 days past due	86.60%	87.00%
Internal Programs
Financing Receivable, Modifications [Line Items]
Renegotiated TDRs	$ 224	$ 204
External Programs
Financing Receivable, Modifications [Line Items]
Renegotiated TDRs	262	257
Other
Financing Receivable, Modifications [Line Items]
Renegotiated TDRs	31	29
Credit Card Receivable | United States
Financing Receivable, Modifications [Line Items]
Renegotiated TDRs	$ 486	$ 461
Percent of balances current or less than 30 days past due	86.42%	86.92%
Credit Card Receivable | Internal Programs | United States
Financing Receivable, Modifications [Line Items]
Renegotiated TDRs	$ 223	$ 203
Credit Card Receivable | External Programs | United States
Financing Receivable, Modifications [Line Items]
Renegotiated TDRs	262	257
Credit Card Receivable | Other | United States
Financing Receivable, Modifications [Line Items]
Renegotiated TDRs	1	1
Direct/Indirect Consumer
Financing Receivable, Modifications [Line Items]
Renegotiated TDRs	$ 31	$ 29
Percent of balances current or less than 30 days past due	89.63%	88.16%
Direct/Indirect Consumer | Internal Programs
Financing Receivable, Modifications [Line Items]
Renegotiated TDRs	$ 1	$ 1
Direct/Indirect Consumer | External Programs
Financing Receivable, Modifications [Line Items]
Renegotiated TDRs	0	0
Direct/Indirect Consumer | Other
Financing Receivable, Modifications [Line Items]
Renegotiated TDRs	$ 30	$ 28

Outstanding Loans and Leases 75

Outstanding Loans and Leases - Credit Card and Other Consumer - TDRs Entered into During the Period (Details) - Credit card and other consumer - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Financing Receivable, Modifications [Line Items]
Unpaid Principal Balance	$ 91	$ 59	$ 168	$ 111
Carrying Value	$ 89	$ 61	$ 165	$ 112
Pre-Modification Interest Rate	17.29%	17.31%	17.63%	17.39%
Post-Modification Interest Rate	5.18%	5.21%	5.19%	5.24%
Net charge-offs	$ 14	$ 13	$ 22	$ 19
Direct/Indirect Consumer
Financing Receivable, Modifications [Line Items]
Unpaid Principal Balance	19	7	28	11
Carrying Value	$ 11	$ 4	$ 16	$ 6
Pre-Modification Interest Rate	4.43%	4.14%	4.73%	4.12%
Post-Modification Interest Rate	4.43%	4.08%	4.56%	4.04%
United States | Credit Card Receivable
Financing Receivable, Modifications [Line Items]
Unpaid Principal Balance	$ 72	$ 52	$ 140	$ 100
Carrying Value	$ 78	$ 57	$ 149	$ 106
Pre-Modification Interest Rate	19.18%	18.31%	19.06%	18.19%
Post-Modification Interest Rate	5.29%	5.30%	5.26%	5.32%

Outstanding Loans and Leases 76

Outstanding Loans and Leases - Credit Card and Other Consumer - TDRs Entered into During the Period, Narrative (Details) - Credit card and other consumer $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2018USD ($)	Jun. 30, 2017USD ($)	Jun. 30, 2018USD ($)payment	Jun. 30, 2017USD ($)
Financing Receivable, Modifications [Line Items]
Number of consecutive missed payments | payment			2
Period for payment default after modification			12 months
Credit Card Receivable | United States
Financing Receivable, Modifications [Line Items]
Percent expected to be in payment default within 12 months after modification			13.00%
Trouble debt restructurings entered payment default that were modified during the preceding twelve months	$ 8	$ 5	$ 16	$ 12
Direct/Indirect Consumer
Financing Receivable, Modifications [Line Items]
Percent expected to be in payment default within 12 months after modification			21.00%
Trouble debt restructurings entered payment default that were modified during the preceding twelve months	$ 2	$ 1	$ 5	$ 2

Outstanding Loans and Leases 77

Outstanding Loans and Leases - Commercial Loans - Impaired Loans (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017	Dec. 31, 2017
Commercial lease financing | United States
Average Carrying Value
With no recorded allowance	$ 7	$ 0	$ 6	$ 0
Interest Income Recognized
With no recorded allowance	0	0	0	0
Commercial Portfolio Segment
Financing Receivable, Impaired [Line Items]
Lending commitments	317		317		$ 205
Real estate acquired through foreclosure	21		21		52
Commercial Portfolio Segment | United States
Unpaid Principal Balance
With no recorded allowance	599		599		576
With an allowance recorded	1,529		1,529		1,393
Total	2,128		2,128		1,969
Carrying Value
With no recorded allowance	596		596		571
With an allowance recorded	1,246		1,246		1,109
Total	1,842		1,842		1,680
Related Allowance	140		140		98
Average Carrying Value
With no recorded allowance	684	857	678	870
With an allowance recorded	1,221	1,264	1,163	1,376
Total	1,905	2,121	1,841	2,246
Interest Income Recognized
With no recorded allowance	4	3	8	6
With an allowance recorded	10	7	21	16
Total	14	10	29	22
Commercial Portfolio Segment | Non United States
Unpaid Principal Balance
With no recorded allowance	8		8		14
With an allowance recorded	426		426		528
Total	434		434		542
Carrying Value
With no recorded allowance	8		8		11
With an allowance recorded	395		395		507
Total	403		403		518
Related Allowance	41		41		58
Average Carrying Value
With no recorded allowance	61	43	61	75
With an allowance recorded	386	482	416	469
Total	447	525	477	544
Interest Income Recognized
With no recorded allowance	0	0	2	0
With an allowance recorded	4	3	6	6
Total	4	3	8	6
Commercial Portfolio Segment | Commercial Real Estate
Unpaid Principal Balance
With no recorded allowance	112		112		83
With an allowance recorded	100		100		133
Total	212		212		216
Carrying Value
With no recorded allowance	104		104		80
With an allowance recorded	20		20		41
Total	124		124		121
Related Allowance	3		3		4
Average Carrying Value
With no recorded allowance	81	48	75	54
With an allowance recorded	8	106	22	91
Total	89	154	97	145
Interest Income Recognized
With no recorded allowance	1	0	1	0
With an allowance recorded	0	1	0	2
Total	1	1	1	2
Commercial Portfolio Segment | Commercial lease financing
Unpaid Principal Balance
With no recorded allowance	3		3		0
With an allowance recorded	45		45		20
Total	48		48		20
Carrying Value
With no recorded allowance	3		3		0
With an allowance recorded	44		44		18
Total	47		47		18
Related Allowance	0		0		3
Average Carrying Value
With an allowance recorded	25	4	18	4
Total	32	4	24	4
Interest Income Recognized
With an allowance recorded	0	0	0	0
Total	0	0	0	0
Commercial Portfolio Segment | Small Business Commercial
Unpaid Principal Balance
With an allowance recorded	86		86		84
Total	86		86		84
Carrying Value
With an allowance recorded	73		73		70
Total	73		73		70
Related Allowance	28		28		$ 27
Average Carrying Value
With an allowance recorded	73	77	74	75
Total	73	77	74	75
Interest Income Recognized
With an allowance recorded	0	0	0	0
Total	$ 0	$ 0	$ 0	$ 0

Outstanding Loans and Leases 78

Outstanding Loans and Leases - Commercial - TDRs Entered Into During the Period (Details) - USD ($)	3 Months Ended		6 Months Ended		12 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017	Dec. 31, 2017
Financing Receivable, Modifications [Line Items]
Threshold period past due for nonperforming status of financing receivables			90 days		90 days
Commercial Portfolio Segment
Financing Receivable, Modifications [Line Items]
Unpaid Principal Balance	$ 804,000,000	$ 456,000,000	$ 1,352,000,000	$ 755,000,000
Carrying Value	794,000,000	437,000,000	1,264,000,000	704,000,000
Net charge-offs	9,000,000	21,000,000	$ 26,000,000	62,000,000
Threshold period past due for nonperforming status of financing receivables			90 days
Commercial Portfolio Segment | Commercial lease financing
Financing Receivable, Modifications [Line Items]
Unpaid Principal Balance	45,000,000		$ 45,000,000
Carrying Value	45,000,000		45,000,000
Trouble debt restructurings entered payment default that were modified during the preceding twelve months			2,000,000	0
Commercial Portfolio Segment | Commercial Real Estate
Financing Receivable, Modifications [Line Items]
Unpaid Principal Balance	5,000,000	44,000,000	5,000,000	59,000,000
Carrying Value	5,000,000	37,000,000	5,000,000	46,000,000
Trouble debt restructurings entered payment default that were modified during the preceding twelve months			17,000,000	32,000,000
Commercial Portfolio Segment | Small Business Commercial
Financing Receivable, Modifications [Line Items]
Unpaid Principal Balance	3,000,000	7,000,000	5,000,000	9,000,000
Carrying Value	3,000,000	7,000,000	5,000,000	10,000,000
Commercial Portfolio Segment | United States
Financing Receivable, Modifications [Line Items]
Unpaid Principal Balance	743,000,000	405,000,000	1,040,000,000	687,000,000
Carrying Value	733,000,000	$ 393,000,000	962,000,000	648,000,000
Trouble debt restructurings entered payment default that were modified during the preceding twelve months			178,000,000	$ 78,000,000
Commercial Portfolio Segment | Non United States
Financing Receivable, Modifications [Line Items]
Unpaid Principal Balance	8,000,000		257,000,000
Carrying Value	$ 8,000,000		$ 247,000,000

Outstanding Loans and Leases 79

Outstanding Loans and Leases - Rollforward of Accretable Yield (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Rollforward of Accretable Yield
Accretable yield, beginning of period	$ 2,730		$ 2,789
Accretion	(124)		(254)
Disposals/transfers	(105)		(212)
Reclassifications from nonaccretable difference	57		235
Accretable yield, end of period	2,558		2,558
Purchased credit impaired loans sold	$ 51	$ 204	$ 160	$ 204

Outstanding Loans and Leases 80

Outstanding Loans and Leases - Loans Held-for-Sale (Details) - USD ($) $ in Millions	6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Dec. 31, 2017
Receivables [Abstract]
Loans held-for-sale	$ 6,511		$ 11,430
Proceeds including cash and securities from sales securitizations and paydowns of loans held for sale	17,300	$ 21,100
Originations and purchases	$ 11,709	$ 18,103

Allowance for Credit Losses - A

Allowance for Credit Losses - Allowance by Portfolio Segment (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Allowance for Loan and Lease Losses [Roll Forward]
Allowance for loan and lease losses, beginning of the period	$ 10,260	$ 11,112	$ 10,393	$ 11,237
Loans and leases charged off	(1,378)	(1,350)	(2,674)	(2,660)
Recoveries of loans and leases previously charged off	382	442	767	818
Net charge-offs	(996)	(908)	(1,907)	(1,842)
Provision (benefit) for loan and lease losses	822	726	1,651	1,566
Other	0	0	(16)	2
Allowance for loan and lease losses, end of the period	10,050	10,875	10,050	10,875
Provision for unfunded lending commitments	827	726	1,661	1,561
Reserve for unfunded lending commitments, end of the period	10,837	11,632	10,837	11,632
Allowance for credit losses	10,837	11,632	10,837	11,632
Unfunded loan commitments
Allowance for Loan and Lease Losses [Roll Forward]
Reserve for unfunded lending commitments, beginning of the period	782	757	777	762
Provision for unfunded lending commitments	5		10	(5)
Reserve for unfunded lending commitments, end of the period	787	757	787	757
Allowance for credit losses	782	757	777	762
Purchased Credit-impaired
Allowance for Loan and Lease Losses [Roll Forward]
Loans and leases charged off	(36)	(55)	(71)	(88)
Provision (benefit) for loan and lease losses	(14)	(24)	(25)	44
Reserve for unfunded lending commitments, beginning of the period			289
Reserve for unfunded lending commitments, end of the period	191		191
Allowance for credit losses	191		289
Financing receivable allowance sold	1	35	17	35
Consumer Real Estate
Allowance for Loan and Lease Losses [Roll Forward]
Allowance for loan and lease losses, beginning of the period	1,530	2,565	1,720	2,750
Loans and leases charged off	(137)	(198)	(311)	(402)
Recoveries of loans and leases previously charged off	130	167	277	290
Net charge-offs	(7)	(31)	(34)	(112)
Provision (benefit) for loan and lease losses	(121)	(170)	(249)	(241)
Other	0	0	0	0
Allowance for loan and lease losses, end of the period	1,366	2,309	1,366	2,309
Reserve for unfunded lending commitments, end of the period	1,366	2,309	1,366	2,309
Allowance for credit losses	1,366	2,309	1,366	2,309
Consumer Real Estate | Unfunded loan commitments
Allowance for Loan and Lease Losses [Roll Forward]
Reserve for unfunded lending commitments, beginning of the period	0	0	0	0
Provision for unfunded lending commitments	0		0	0
Reserve for unfunded lending commitments, end of the period	0	0	0	0
Allowance for credit losses	0	0	0	0
Consumer Real Estate | Purchased Credit-impaired
Allowance for Loan and Lease Losses [Roll Forward]
Loans and leases charged off	(36)	(55)	(71)	(88)
Reserve for unfunded lending commitments, beginning of the period			289
Reserve for unfunded lending commitments, end of the period	191		191
Allowance for credit losses	191		289
Credit card and other consumer
Allowance for Loan and Lease Losses [Roll Forward]
Allowance for loan and lease losses, beginning of the period	3,720	3,329	3,663	3,229
Loans and leases charged off	(1,033)	(954)	(2,039)	(1,900)
Recoveries of loans and leases previously charged off	210	234	413	434
Net charge-offs	(823)	(720)	(1,626)	(1,466)
Provision (benefit) for loan and lease losses	878	776	1,754	1,619
Other	(1)	1	(17)	4
Allowance for loan and lease losses, end of the period	3,774	3,386	3,774	3,386
Reserve for unfunded lending commitments, end of the period	3,774	3,386	3,774	3,386
Allowance for credit losses	3,774	3,386	3,774	3,386
Credit card and other consumer | Unfunded loan commitments
Allowance for Loan and Lease Losses [Roll Forward]
Reserve for unfunded lending commitments, beginning of the period	0	0	0	0
Provision for unfunded lending commitments	0		0	0
Reserve for unfunded lending commitments, end of the period	0	0	0	0
Allowance for credit losses	0	0	0	0
Credit card and other consumer | Purchased Credit-impaired
Allowance for Loan and Lease Losses [Roll Forward]
Loans and leases charged off	0	0	0	0
Commercial
Allowance for Loan and Lease Losses [Roll Forward]
Allowance for loan and lease losses, beginning of the period	5,010	5,218	5,010	5,258
Loans and leases charged off	(208)	(198)	(324)	(358)
Recoveries of loans and leases previously charged off	42	41	77	94
Net charge-offs	(166)	(157)	(247)	(264)
Provision (benefit) for loan and lease losses	65	120	146	188
Other	1	(1)	1	(2)
Allowance for loan and lease losses, end of the period	4,910	5,180	4,910	5,180
Reserve for unfunded lending commitments, end of the period	5,697	5,937	5,697	5,937
Allowance for credit losses	5,697	5,937	5,697	5,937
Commercial | Unfunded loan commitments
Allowance for Loan and Lease Losses [Roll Forward]
Reserve for unfunded lending commitments, beginning of the period	782	757	777	762
Provision for unfunded lending commitments	5		10	(5)
Reserve for unfunded lending commitments, end of the period	787	757	787	757
Allowance for credit losses	782	757	777	762
Commercial | Purchased Credit-impaired
Allowance for Loan and Lease Losses [Roll Forward]
Loans and leases charged off	$ 0	$ 0	$ 0	$ 0

Allowance for Credit Losses -82

Allowance for Credit Losses - Allowance and Carrying Value by Portfolio Segment (Details) - USD ($) $ in Millions	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2017	Jun. 30, 2017	Mar. 31, 2017	Dec. 31, 2016
Impaired loans and troubled debt restructurings
Allowance for loan and lease losses	$ 682		$ 663
Carrying value	$ 13,476		$ 15,451
Allowance as a percentage of carrying value	5.06%		4.29%
Loans collectively evaluated for impairment
Allowance for loan and lease losses	$ 9,177		$ 9,441
Carrying value	$ 906,536		$ 904,871
Allowance as a percentage of carrying value	1.01%		1.04%
Purchased credit-impaired loans
Valuation allowance	$ 10,837			$ 11,632
Valuation allowance as a percentage of carrying value	1.99%		2.70%
Total
Allowance for loan and lease losses	$ 10,050	$ 10,260	$ 10,393	10,875	$ 11,112	$ 11,237
Carrying value	$ 929,597		$ 931,039
Allowance as a percentage of carrying value	1.08%		1.12%
Loans and leases	$ 935,824		$ 936,749
Estimate of Fair Value Measurement
Total
Loans and leases	6,227		5,710
Purchased Credit-impaired
Purchased credit-impaired loans
Valuation allowance	191		289
Carrying value gross of valuation allowance	9,585		10,717
Total
Loans and leases	9,585		10,717
Consumer real estate
Impaired loans and troubled debt restructurings
Allowance for loan and lease losses	327		348
Carrying value	$ 10,470		$ 12,554
Allowance as a percentage of carrying value	3.12%		2.77%
Loans collectively evaluated for impairment
Allowance for loan and lease losses	$ 848		$ 1,083
Carrying value	$ 241,096		$ 238,284
Allowance as a percentage of carrying value	0.35%		0.45%
Purchased credit-impaired loans
Valuation allowance	$ 1,366			2,309
Valuation allowance as a percentage of carrying value	1.99%		2.70%
Total
Allowance for loan and lease losses	$ 1,366	1,530	$ 1,720	2,309	2,565	2,750
Carrying value	$ 261,151		$ 261,555
Allowance as a percentage of carrying value	0.52%		0.66%
Consumer real estate | Estimate of Fair Value Measurement
Total
Loans and leases	$ 848		$ 928
Consumer real estate | Purchased Credit-impaired
Purchased credit-impaired loans
Valuation allowance	191		289
Carrying value gross of valuation allowance	9,585		10,717
Credit card and other consumer
Impaired loans and troubled debt restructurings
Allowance for loan and lease losses	143		125
Carrying value	$ 517		$ 490
Allowance as a percentage of carrying value	27.66%		25.51%
Loans collectively evaluated for impairment
Allowance for loan and lease losses	$ 3,631		$ 3,538
Carrying value	$ 187,061		$ 192,303
Allowance as a percentage of carrying value	1.94%		1.84%
Purchased credit-impaired loans
Valuation allowance	$ 3,774			3,386
Total
Allowance for loan and lease losses	3,774	3,720	$ 3,663	3,386	3,329	3,229
Carrying value	$ 187,578		$ 192,793
Allowance as a percentage of carrying value	2.01%		1.90%
Commercial
Impaired loans and troubled debt restructurings
Allowance for loan and lease losses	$ 212		$ 190
Carrying value	$ 2,489		$ 2,407
Allowance as a percentage of carrying value	8.52%		7.89%
Loans collectively evaluated for impairment
Allowance for loan and lease losses	$ 4,698		$ 4,820
Carrying value	$ 478,379		$ 474,284
Allowance as a percentage of carrying value	0.98%		1.02%
Purchased credit-impaired loans
Valuation allowance	$ 5,697			5,937
Total
Allowance for loan and lease losses	4,910	$ 5,010	$ 5,010	$ 5,180	$ 5,218	$ 5,258
Carrying value	$ 480,868		$ 476,691
Allowance as a percentage of carrying value	1.02%		1.05%
Loans and leases	$ 486,247		$ 481,473
Commercial | Estimate of Fair Value Measurement
Total
Loans and leases	$ 5,379		$ 4,782

Securitizations and Other Var83

Securitizations and Other Variable Interest Entities - Additional Information (Details) - USD ($) $ in Millions	Jun. 06, 2018	Jun. 30, 2018	Dec. 31, 2017
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Carrying value of redeemed assets held-in-trust	$ 3,100
Charge on extinguishment of debt	$ (729)
Unconsolidated VIEs
Variable Interest Entity [Line Items]
Liquidity commitments to unconsolidated securitization trusts		$ 271	$ 442

Securitizations and Other Var84

Securitizations and Other Variable Interest Entities - First Lien Mortgage Securitizations (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017	Dec. 31, 2017
Residential Mortgage - Agency
Securitization or Asset-backed Financing Arrangement, Financial Asset for which Transfer is Accounted as Sale [Line Items]
Cash proceeds from new securitizations	$ 1,379	$ 3,302	$ 3,065	$ 7,958
Gains on securitizations	23	61	41	100
Repurchases from securitization trusts	357	602	858	1,474
Gain (loss) on loans securitized	21	42	45	132
Commercial Mortgage
Securitization or Asset-backed Financing Arrangement, Financial Asset for which Transfer is Accounted as Sale [Line Items]
Cash proceeds from new securitizations	1,672	1,097	2,184	1,706
Gains on securitizations	21	35	39	53
Repurchases from securitization trusts	0	0	0	0
First Lien Mortgages
Securitization or Asset-backed Financing Arrangement, Financial Asset for which Transfer is Accounted as Sale [Line Items]
Mortgage loans serviced for investors	249,500	304,900	249,500	304,900
Servicing fees	181	233	378	478
Transfers continuing involvement servicing fee advances	3,800		3,800		$ 4,500
First Lien Mortgages | Level 2
Securitization or Asset-backed Financing Arrangement, Financial Asset for which Transfer is Accounted as Sale [Line Items]
Transfers of financial assets accounted for as sale initial fair value of assets	$ 164	$ 288	$ 302	$ 563

Securitizations and Other Var85

Securitizations and Other Variable Interest Entities - First Lien Mortgages VIE (Details) - USD ($) $ in Millions	Jun. 30, 2018	Dec. 31, 2017	Jun. 30, 2017
On-balance sheet assets
Trading account assets	$ 203,420	$ 209,358
Debt securities carried at fair value	275,256	315,117
Held-to-maturity securities	163,013	125,013
Loans and leases, net	935,824	936,749
All other assets	130,288	135,043
Total assets	2,291,670	2,281,234	$ 2,254,714
Total liabilities	2,027,454	2,014,088
Unpaid principal balance of mortgage loans eligible for repurchase	61	148
Principal amount that would be payable to the securitization vehicles	61	148
Unconsolidated VIEs | Agency
Variable Interest Entity [Line Items]
Maximum loss exposure	17,336	19,110
On-balance sheet assets
All other assets	0	10
Total assets	17,336	19,110
Principal balance outstanding	208,265	232,761
Unconsolidated VIEs | Agency | Senior Lien
On-balance sheet assets
Trading account assets	636	716
Debt securities carried at fair value	13,075	15,036
Held-to-maturity securities	3,625	3,348
Unconsolidated VIEs | Non-agency | Prime
Variable Interest Entity [Line Items]
Maximum loss exposure	655	689
On-balance sheet assets
All other assets	5	5
Total assets	475	488
Principal balance outstanding	10,083	10,549
Unconsolidated VIEs | Non-agency | Prime | Senior Lien
On-balance sheet assets
Trading account assets	50	6
Debt securities carried at fair value	420	477
Held-to-maturity securities	0	0
Unconsolidated VIEs | Non-agency | Subprime
Variable Interest Entity [Line Items]
Maximum loss exposure	2,483	2,643
On-balance sheet assets
All other assets	60	38
Total assets	2,117	2,269
Principal balance outstanding	9,436	10,254
Unconsolidated VIEs | Non-agency | Subprime | Senior Lien
On-balance sheet assets
Trading account assets	36	10
Debt securities carried at fair value	2,021	2,221
Held-to-maturity securities	0	0
Unconsolidated VIEs | Non-agency | Alt-A
Variable Interest Entity [Line Items]
Maximum loss exposure	399	403
On-balance sheet assets
All other assets	2	2
Total assets	399	403
Principal balance outstanding	25,640	28,129
Unconsolidated VIEs | Non-agency | Alt-A | Senior Lien
On-balance sheet assets
Trading account assets	62	50
Debt securities carried at fair value	335	351
Held-to-maturity securities	0	0
Unconsolidated VIEs | Commercial Mortgage
Variable Interest Entity [Line Items]
Maximum loss exposure	615	585
On-balance sheet assets
All other assets	80	88
Total assets	500	470
Principal balance outstanding	26,487	26,504
Unconsolidated VIEs | Commercial Mortgage | Senior Lien
On-balance sheet assets
Trading account assets	58	108
Debt securities carried at fair value	0	0
Held-to-maturity securities	362	274
Consolidated VIEs
On-balance sheet assets
Trading account assets	5,692	6,521
Loans and leases, net	45,483	48,929
All other assets	396	1,694
Total assets	50,615	56,155
Total liabilities	10,300	10,222
Consolidated VIEs | Agency
Variable Interest Entity [Line Items]
Maximum loss exposure	13,342	14,502
On-balance sheet assets
Trading account assets	269	232
Loans and leases, net	12,867	14,030
All other assets	207	240
Total assets	13,343	14,502
Total liabilities	3	3
Consolidated VIEs | Non-agency | Prime
Variable Interest Entity [Line Items]
Maximum loss exposure	653	571
On-balance sheet assets
Trading account assets	837	571
Loans and leases, net	0	0
All other assets	0	0
Total assets	837	571
Total liabilities	184	0
Consolidated VIEs | Non-agency | Subprime
Variable Interest Entity [Line Items]
Maximum loss exposure	0	0
On-balance sheet assets
Trading account assets	0	0
Loans and leases, net	0	0
All other assets	0	0
Total assets	0	0
Total liabilities	0	0
Consolidated VIEs | Non-agency | Alt-A
Variable Interest Entity [Line Items]
Maximum loss exposure	0	0
On-balance sheet assets
Trading account assets	0	0
Loans and leases, net	0	0
All other assets	0	0
Total assets	0	0
Total liabilities	0	0
Consolidated VIEs | Commercial Mortgage
Variable Interest Entity [Line Items]
Maximum loss exposure	0	0
On-balance sheet assets
Trading account assets	0	0
Loans and leases, net	0	0
All other assets	0	0
Total assets	0	0
Total liabilities	$ 0	$ 0

Securitizations and Other Var86

Securitizations and Other Variable Interest Entities - Home Equity Loan, Credit Card and Other Asset-backed VIEs (Details) - USD ($) $ in Millions	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2017	Jun. 30, 2017	Mar. 31, 2017	Dec. 31, 2016
On-balance sheet assets
Trading account assets	$ 203,420		$ 209,358
Debt securities carried at fair value	275,256		315,117
Held-to-maturity securities	163,013		125,013
Securities	438,269		440,130
Loans and leases	935,824		936,749
Allowance for loan and lease losses	(10,050)	$ (10,260)	(10,393)	$ (10,875)	$ (11,112)	$ (11,237)
All other assets	130,288		135,043
Total assets	2,291,670		2,281,234	$ 2,254,714
On-balance sheet liabilities
Long-term debt	226,595		227,402
Total liabilities	2,027,454		2,014,088
Consolidated VIEs
On-balance sheet assets
Trading account assets	5,692		6,521
Loans and leases	45,483		48,929
Allowance for loan and lease losses	(959)		(1,016)
All other assets	396		1,694
Total assets	50,615		56,155
On-balance sheet liabilities
Long-term debt	9,865		9,873
All other liabilities	39		37
Total liabilities	10,300		10,222
Home Equity Loan | Unconsolidated VIEs
Variable Interest Entity [Line Items]
Maximum loss exposure	1,238		1,522
On-balance sheet assets
Total assets	31		36
Unconsolidated total assets of VIEs	2,085		2,432
Home Equity Loan | Consolidated VIEs
Variable Interest Entity [Line Items]
Maximum loss exposure	97		112
On-balance sheet assets
Trading account assets	0		0
Loans and leases	154		177
Allowance for loan and lease losses	(7)		(9)
All other assets	5		6
Total assets	152		174
On-balance sheet liabilities
Short-term borrowings	0		0
Long-term debt	65		76
All other liabilities	0		0
Total liabilities	65		76
Home Equity Loan | Senior Lien | Unconsolidated VIEs
On-balance sheet assets
Trading account assets	0		0
Debt securities carried at fair value	31		36
Held-to-maturity securities	0		0
Home Equity Loan | Junior Lien | Unconsolidated VIEs
On-balance sheet assets
Securities	0		0
Credit Card | Unconsolidated VIEs
Variable Interest Entity [Line Items]
Maximum loss exposure	0		0
On-balance sheet assets
Total assets	0		0
Unconsolidated total assets of VIEs	0		0
Credit Card | Consolidated VIEs
Variable Interest Entity [Line Items]
Maximum loss exposure	20,518		24,337
On-balance sheet assets
Trading account assets	0		0
Loans and leases	30,433		32,554
Allowance for loan and lease losses	(944)		(988)
All other assets	128		1,385
Total assets	29,617		32,951
On-balance sheet liabilities
Short-term borrowings	0		0
Long-term debt	9,071		8,598
All other liabilities	28		16
Total liabilities	9,099		8,614
Residual interests	13,000		15,600
Credit Card | Senior Lien | Unconsolidated VIEs
On-balance sheet assets
Trading account assets	0		0
Debt securities carried at fair value	0		0
Held-to-maturity securities	0		0
Credit Card | Junior Lien | Unconsolidated VIEs
On-balance sheet assets
Securities	0		0
Resecuritization Trusts | Unconsolidated VIEs
Variable Interest Entity [Line Items]
Maximum loss exposure	8,025		8,204
On-balance sheet assets
Total assets	8,025		8,204
Unconsolidated total assets of VIEs	19,975		19,281
Resecuritization Trusts | Consolidated VIEs
Variable Interest Entity [Line Items]
Maximum loss exposure	264		628
On-balance sheet assets
Trading account assets	622		1,557
Loans and leases	0		0
Allowance for loan and lease losses	0		0
All other assets	0		0
Total assets	622		1,557
On-balance sheet liabilities
Short-term borrowings	0		0
Long-term debt	358		929
All other liabilities	0		0
Total liabilities	358		929
Resecuritization Trusts | Senior Lien | Unconsolidated VIEs
On-balance sheet assets
Trading account assets	1,297		869
Debt securities carried at fair value	1,471		1,661
Held-to-maturity securities	5,257		5,644
Resecuritization Trusts | Junior Lien | Unconsolidated VIEs
On-balance sheet assets
Securities	0		30
Municipal Bond Trusts | Unconsolidated VIEs
Variable Interest Entity [Line Items]
Maximum loss exposure	1,726		1,631
On-balance sheet assets
Total assets	0		33
Unconsolidated total assets of VIEs	2,378		2,287
Municipal Bond Trusts | Consolidated VIEs
Variable Interest Entity [Line Items]
Maximum loss exposure	1,480		1,453
On-balance sheet assets
Trading account assets	1,492		1,452
Loans and leases	0		0
Allowance for loan and lease losses	0		0
All other assets	1		1
Total assets	1,493		1,453
On-balance sheet liabilities
Short-term borrowings	396		312
Long-term debt	12		0
All other liabilities	0		0
Total liabilities	408		312
Municipal Bond Trusts | Senior Lien | Unconsolidated VIEs
On-balance sheet assets
Trading account assets	0		33
Debt securities carried at fair value	0		0
Held-to-maturity securities	0		0
Municipal Bond Trusts | Junior Lien | Unconsolidated VIEs
On-balance sheet assets
Securities	$ 0		$ 0

Securitizations and Other Var87

Securitizations and Other Variable Interest Entities - Other Asset-backed Securitizations, Additional Information (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017	Dec. 31, 2017
Unconsolidated VIEs
Variable Interest Entity [Line Items]
Liquidity commitments to unconsolidated securitization trusts	$ 271		$ 271		$ 442
Credit Card Receivable
Variable Interest Entity [Line Items]
Principal balance outstanding	$ 7,500		$ 7,500		7,400
Transferred financial assets, stated interest rate	0.00%		0.00%
Credit Card Receivable | Senior Lien
Variable Interest Entity [Line Items]
Transferred financial assets, amount issued			$ 2,800	$ 2,000
Credit Card Receivable | Junior Lien
Variable Interest Entity [Line Items]
Transferred financial assets, amount issued			448	323
Resecuritization Trusts
Variable Interest Entity [Line Items]
Cash proceeds from new securitizations	$ 6,800	$ 7,300	13,600	15,100
Resecuritization Trusts | Debt securities
Variable Interest Entity [Line Items]
Cash proceeds from new securitizations	910	$ 1,100	2,200	$ 1,800
Municipal Bond Trusts | Unconsolidated VIEs
Variable Interest Entity [Line Items]
Liquidity commitments to unconsolidated securitization trusts	$ 1,700		$ 1,700		$ 1,600
Weighted average remaining life of bonds held in the trusts in years			6 years 1 month 6 days

Securitizations and Other Var88

Securitizations and Other Variable Interest Entities - Other Variable Interest Entities (Details) - USD ($) $ in Millions	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2017	Jun. 30, 2017	Mar. 31, 2017	Dec. 31, 2016
On-balance sheet assets
Trading account assets	$ 203,420		$ 209,358
Debt securities carried at fair value	275,256		315,117
Loans and leases	935,824		936,749
Allowance for loan and lease losses	(10,050)	$ (10,260)	(10,393)	$ (10,875)	$ (11,112)	$ (11,237)
Loans held-for-sale	6,511		11,430
All other assets	130,288		135,043
Total assets	2,291,670		2,281,234	$ 2,254,714
On-balance sheet liabilities
Long-term debt	226,595		227,402
Total liabilities	2,027,454		2,014,088
Consolidated VIEs
On-balance sheet assets
Trading account assets	5,692		6,521
Loans and leases	45,483		48,929
Allowance for loan and lease losses	(959)		(1,016)
Loans held-for-sale	3		27
All other assets	396		1,694
Total assets	50,615		56,155
On-balance sheet liabilities
Long-term debt	9,865		9,873
All other liabilities	39		37
Total liabilities	10,300		10,222
Other Variable Interest Entities
Variable Interest Entity [Line Items]
Maximum loss exposure	25,578		24,445
On-balance sheet assets
Trading account assets	3,128		3,055
Debt securities carried at fair value	61		160
Loans and leases	6,691		5,748
Allowance for loan and lease losses	(32)		(35)
Loans held-for-sale	391		967
All other assets	15,073		14,338
Total assets	25,312		24,233
On-balance sheet liabilities
Long-term debt	174		270
All other liabilities	3,991		3,435
Total liabilities	4,165		3,705
Consolidated total assets of VIEs	4,551		4,947
Unconsolidated total assets of VIEs	86,070		69,746
Total assets of VIEs	90,621		74,693
Other Variable Interest Entities | Consolidated VIEs
Variable Interest Entity [Line Items]
Maximum loss exposure	4,369		4,660
On-balance sheet assets
Trading account assets	2,472		2,709
Debt securities carried at fair value	0		0
Loans and leases	2,024		2,152
Allowance for loan and lease losses	(3)		(3)
Loans held-for-sale	3		27
All other assets	55		62
Total assets	4,551		4,947
On-balance sheet liabilities
Long-term debt	174		270
All other liabilities	9		18
Total liabilities	183		288
Other Variable Interest Entities | Unconsolidated VIEs
Variable Interest Entity [Line Items]
Maximum loss exposure	21,209		19,785
On-balance sheet assets
Trading account assets	656		346
Debt securities carried at fair value	61		160
Loans and leases	4,667		3,596
Allowance for loan and lease losses	(29)		(32)
Loans held-for-sale	388		940
All other assets	15,018		14,276
Total assets	20,761		19,286
On-balance sheet liabilities
Long-term debt	0		0
All other liabilities	3,982		3,417
Total liabilities	$ 3,982		$ 3,417

Securitizations and Other Var89

Securitizations and Other Variable Interest Entities - Other Variable Interest Entities, Additional Information (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017	Dec. 31, 2017
Variable Interest Entity [Line Items]
Total assets	$ 2,291,670	$ 2,254,714	$ 2,291,670	$ 2,254,714	$ 2,281,234
Consolidated VIEs
Variable Interest Entity [Line Items]
Total assets	50,615		50,615		56,155
Customer Vehicles
Variable Interest Entity [Line Items]
Maximum loss exposure	2,200		2,200		2,300
Collateralized Debt Obligations
Variable Interest Entity [Line Items]
Maximum loss exposure	444		444		358
Investment Vehicles
Variable Interest Entity [Line Items]
Maximum loss exposure	6,000		6,000		5,700
Investment Vehicles | Consolidated VIEs
Variable Interest Entity [Line Items]
Total assets	243		243		249
Investment Vehicles | Unconsolidated VIEs
Variable Interest Entity [Line Items]
Total assets	33,800		33,800		20,300
Leveraged Lease Trusts | Consolidated VIEs
Variable Interest Entity [Line Items]
Total assets	1,900		1,900		2,000
Tax Credit Vehicles
Investments in Affordable Housing Projects [Abstract]
Unfunded commitments	3,600		$ 3,600		3,100
Unfunded commitment payment period			5 years
Tax credits and other benefits	237	281	$ 485	532
Expected tax benefits recognized, as a percentage			25.00%
Tax Credit Vehicles | Other income
Investments in Affordable Housing Projects [Abstract]
Pretax losses	217	$ 207	$ 425	$ 403
Tax Credit Vehicles | Other assets
Investments in Affordable Housing Projects [Abstract]
Investments in affordable housing project investments	8,400		8,400		8,000
Tax Credit Vehicles | Unconsolidated VIEs
Variable Interest Entity [Line Items]
Maximum loss exposure	$ 14,600		$ 14,600		$ 13,800

Goodwill and Intangible Asset90

Goodwill and Intangible Assets - Schedule of Goodwill (Details) - USD ($) $ in Millions	Jun. 30, 2018	Dec. 31, 2017
Goodwill [Line Items]
Total goodwill	$ 68,951	$ 68,951
Operating Segments | Consumer Banking
Goodwill [Line Items]
Total goodwill	30,123	30,123
Operating Segments | Consumer Banking | Deposits
Goodwill [Line Items]
Total goodwill	18,414	18,414
Operating Segments | Consumer Banking | Consumer Lending
Goodwill [Line Items]
Total goodwill	11,709	11,709
Operating Segments | Global Wealth & Investment Management
Goodwill [Line Items]
Total goodwill	9,677	9,677
Operating Segments | Global Wealth & Investment Management | U.S. Trust
Goodwill [Line Items]
Total goodwill	2,917	2,917
Operating Segments | Global Wealth & Investment Management | Merrill Lynch Global Wealth Management
Goodwill [Line Items]
Total goodwill	6,760	6,760
Operating Segments | Global Banking
Goodwill [Line Items]
Total goodwill	23,923	23,923
Operating Segments | Global Banking | Global Commercial Banking
Goodwill [Line Items]
Total goodwill	16,146	16,146
Operating Segments | Global Banking | Global Corporate and Investment Banking
Goodwill [Line Items]
Total goodwill	6,231	6,231
Operating Segments | Global Banking | Business Banking
Goodwill [Line Items]
Total goodwill	1,546	1,546
Operating Segments | Global Markets
Goodwill [Line Items]
Total goodwill	5,182	5,182
All Other
Goodwill [Line Items]
Total goodwill	$ 46	$ 46

Goodwill and Intangible Asset91

Goodwill and Intangible Assets - Schedule of Intangible Assets (Details) - USD ($) $ in Millions	Jun. 30, 2018	Dec. 31, 2017
Intangible Assets [Abstract]
Gross Carrying Value	$ 13,640	$ 13,640
Accumulated Amortization	11,598	11,328
Net Carrying Value	2,042	2,312
Trade Names
Intangible Assets [Abstract]
Intangible assets, net (excluding goodwill)	1,600	1,600
Purchased credit card and affinity relationships
Intangible Assets [Abstract]
Gross Carrying Value	5,919	5,919
Accumulated Amortization	5,682	5,604
Net Carrying Value	237	315
Core deposit and other intangibles
Intangible Assets [Abstract]
Gross Carrying Value	3,835	3,835
Accumulated Amortization	2,181	2,140
Net Carrying Value	1,654	1,695
Customer relationships
Intangible Assets [Abstract]
Gross Carrying Value	3,886	3,886
Accumulated Amortization	3,735	3,584
Net Carrying Value	$ 151	$ 302

Goodwill and Intangible Asset92

Goodwill and Intangible Assets - Additional Information (Details) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Goodwill and Intangible Assets Disclosure [Abstract]
Amortization of intangibles	$ 135,000,000	$ 160,000,000	$ 269,000,000	$ 322,000,000
Finite-Lived Intangible Assets, Net, Amortization Expense, Fiscal Year Maturity [Abstract]
Remainder of 2018	268,000,000		268,000,000
2,019	105,000,000		105,000,000
2,020	53,000,000		53,000,000
2,021	0		0
2,022	0		0
Thereafter	$ 0		$ 0

Federal Funds Sold or Purchas93

Federal Funds Sold or Purchased, Securities Financing Agreements, Short-term Borrowings and Restricted Cash (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Federal funds purchased and securities loaned or sold under agreements to repurchase
Amount
Average during period	$ 194,298	$ 208,760	$ 194,953	$ 200,265
Maximum month-end balance during period	$ 199,419	$ 218,017	$ 199,419	$ 218,017
Rate
Average during period	1.85%	1.21%	1.63%	1.08%
Short-term borrowings
Amount
Average during period	$ 40,542	$ 42,881	$ 43,422	$ 41,468
Maximum month-end balance during period	$ 44,382	$ 46,202	$ 52,480	$ 46,202
Rate
Average during period	5.61%	2.65%	4.75%	2.39%
Federal funds sold and securities borrowed or purchased under agreements to resell
Amount
Average during period	$ 251,880	$ 226,700	$ 250,110	$ 221,579
Maximum month-end balance during period	$ 264,923	$ 237,064	$ 264,923	$ 237,064
Rate
Average during period	1.13%	0.77%	1.07%	0.72%

Federal Funds Sold or Purchas94

Federal Funds Sold or Purchased, Securities Financing Agreements, Short-term Borrowings and Restricted Cash - Offsetting Assets and Liabilities (Details) - USD ($) $ in Millions	Jun. 30, 2018	Dec. 31, 2017
Securities borrowed or purchased under agreements to resell:
Gross Assets	$ 353,551	$ 348,472
Amounts Offset	(127,065)	(135,725)
Net Balance Sheet Amount	226,486	212,747
Financial Instruments	(186,805)	(165,720)
Net Assets	39,681	47,027
Securities loaned or sold under agreements to repurchase:
Gross Liabilities	304,968	312,582
Amounts Offset	(127,065)	(135,725)
Net Balance Sheet Amount	177,903	176,857
Financial Instruments	(147,798)	(146,205)
Net Liabilities	30,105	30,652
Other:
Gross Liabilities	21,063	22,711
Amounts Offset	0	0
Net Balance Sheet Amount	21,063	22,711
Financial Instruments	(21,063)	(22,711)
Net Liabilities	0	0
Total Securities Financing Agreements Liability:
Gross Liabilities	326,031	335,293
Amounts Offset	(127,065)	(135,725)
Net Balance Sheet Amount	198,966	199,568
Financial Instruments	(168,861)	(168,916)
Net Liabilities	30,105	30,652
Loans and leases repurchase activity	$ 11,500	$ 10,200

Federal Funds Sold or Purchas95

Federal Funds Sold or Purchased, Securities Financing Agreements, Short-term Borrowings and Restricted Cash - Remaining Contractual Maturity (Details) - USD ($) $ in Millions	6 Months Ended	12 Months Ended
	Jun. 30, 2018	Dec. 31, 2017
Remaining Contractual Maturity
Securities sold under agreements to repurchase	$ 284,786	$ 290,895
Securities loaned	20,182	21,687
Other	21,063	22,711
Total	$ 326,031	$ 335,293
Maximum agreement maturity period (less than)	3 years	3 years
Overnight and Continuous
Remaining Contractual Maturity
Securities sold under agreements to repurchase	$ 125,778	$ 125,956
Securities loaned	12,671	9,853
Other	21,063	22,711
Total	159,512	158,520
30 Days or Less
Remaining Contractual Maturity
Securities sold under agreements to repurchase	81,805	79,913
Securities loaned	236	5,658
Other	0	0
Total	82,041	85,571
After 30 Days Through 90 Days
Remaining Contractual Maturity
Securities sold under agreements to repurchase	32,591	46,091
Securities loaned	2,353	2,043
Other	0	0
Total	34,944	48,134
Greater than 90 Days
Remaining Contractual Maturity
Securities sold under agreements to repurchase	44,612	38,935
Securities loaned	4,922	4,133
Other	0	0
Total	$ 49,534	$ 43,068

Federal Funds Sold or Purchas96

Federal Funds Sold or Purchased, Securities Financing Agreements, Short-term Borrowings and Restricted Cash - Class of Collateral Pledged (Details) - USD ($) $ in Millions	Jun. 30, 2018	Dec. 31, 2017
Class of Collateral Pledged
Securities Sold Under Agreements to Repurchase	$ 284,786	$ 290,895
Securities Loaned	20,182	21,687
Other	21,063	22,711
Total	326,031	335,293
U.S. government and agency securities
Class of Collateral Pledged
Securities Sold Under Agreements to Repurchase	153,756	158,299
Securities Loaned	0	0
Other	0	409
Total	153,756	158,708
Corporate securities, trading loans and other
Class of Collateral Pledged
Securities Sold Under Agreements to Repurchase	13,093	12,787
Securities Loaned	2,246	2,669
Other	348	624
Total	15,687	16,080
Equity securities
Class of Collateral Pledged
Securities Sold Under Agreements to Repurchase	19,408	23,975
Securities Loaned	14,288	13,523
Other	20,663	21,628
Total	54,359	59,126
Non-U.S. sovereign debt
Class of Collateral Pledged
Securities Sold Under Agreements to Repurchase	94,054	90,857
Securities Loaned	3,648	5,495
Other	52	50
Total	97,754	96,402
Mortgage trading loans and ABS
Class of Collateral Pledged
Securities Sold Under Agreements to Repurchase	4,475	4,977
Securities Loaned	0	0
Other	0	0
Total	$ 4,475	$ 4,977

Federal Funds Sold or Purchas97

Federal Funds Sold or Purchased, Securities Financing Agreements, Short-term Borrowings and Restricted Cash - Restricted Cash (Details) - USD ($) $ in Billions	Jun. 30, 2018	Dec. 31, 2017
Federal Funds Sold, Securities Borrowed or Purchased Under Agreements to Resell and Short-term Borrowings [Abstract]
Restricted cash	$ 18.8	$ 18.8

Commitments and Contingencies -

Commitments and Contingencies - Credit Extension Commitments Narrative (Details) - USD ($) $ in Millions	Jun. 30, 2018	Dec. 31, 2017
Commitments and Contingencies Disclosure [Abstract]
Legally binding unfunded commitments syndicated	$ 10,700	$ 11,000
Carrying amount credit extension commitments syndicated	803	793
Deferred revenue	16	16
Other liabilities reserve for unfunded lending commitments	787	777
Notional amount of credit extension commitments under fair value option	3,400	4,800
Unfunded loan commitments
Other Commitments [Line Items]
Fair value carrying amount liabilities	$ 114	$ 120

Commitments and Contingencies99

Commitments and Contingencies - Credit Extension Commitments (Details) - USD ($) $ in Millions	Jun. 30, 2018	Dec. 31, 2017
Other Commitments [Line Items]
Expire in One Year or Less	$ 482,260	$ 475,273
Expire After One Year Through Three Years	160,820	156,777
Expire After Three Years Through Five Years	156,527	152,880
Expire After Five Years	54,585	53,823
Total	854,192	838,753
Legally binding commitments
Other Commitments [Line Items]
Expire in One Year or Less	111,614	113,243
Expire After One Year Through Three Years	160,820	156,777
Expire After Three Years Through Five Years	156,527	152,880
Expire After Five Years	54,585	53,823
Total	483,546	476,723
Loan commitments
Other Commitments [Line Items]
Expire in One Year or Less	85,580	85,804
Expire After One Year Through Three Years	147,418	140,942
Expire After Three Years Through Five Years	151,105	147,043
Expire After Five Years	20,103	21,342
Total	404,206	395,131
Home equity lines of credit
Other Commitments [Line Items]
Expire in One Year or Less	3,862	6,172
Expire After One Year Through Three Years	3,048	4,457
Expire After Three Years Through Five Years	2,717	2,288
Expire After Five Years	33,805	31,250
Total	43,432	44,167
Standby letters of credit and other
Other Commitments [Line Items]
Expire in One Year or Less	20,794	19,976
Expire After One Year Through Three Years	10,190	11,261
Expire After Three Years Through Five Years	2,537	3,420
Expire After Five Years	627	1,144
Total	34,148	35,801
Standby letters of credit and other | Credit Card and Other Consumer
Other Commitments [Line Items]
Total	401	421
Standby letters of credit and other | Investment grade
Other Commitments [Line Items]
Total	26,300	27,300
Standby letters of credit and other | Non-investment grade
Other Commitments [Line Items]
Total	7,400	8,100
Letters of credit
Other Commitments [Line Items]
Expire in One Year or Less	1,378	1,291
Expire After One Year Through Three Years	164	117
Expire After Three Years Through Five Years	168	129
Expire After Five Years	50	87
Total	1,760	1,624
Credit card lines
Other Commitments [Line Items]
Expire in One Year or Less	370,646	362,030
Expire After One Year Through Three Years	0	0
Expire After Three Years Through Five Years	0	0
Expire After Five Years	0	0
Total	$ 370,646	$ 362,030

Commitments and Contingencie100

Commitments and Contingencies - Other Commitments (Details) - USD ($) $ in Millions	6 Months Ended
	Jun. 30, 2018	Dec. 31, 2017
Operating Leases, Future Minimum Payments Receivable [Abstract]
Other commitment, remainder of fiscal year	$ 1,100
2,019	2,200
2,020	2,100
2,021	1,800
2,022	1,500
Thereafter	6,200
Liquefied Natural Gas Commodities
Loss Contingencies [Line Items]
Other commitments	$ 1,500	$ 1,500
Forward-Dated Securities Agreements
Loss Contingencies [Line Items]
Other Commitment, Period	18 months
Forward-Dated Resale and Securities Borrowing Agreements
Loss Contingencies [Line Items]
Other commitments	$ 76,400	56,800
Forward-Dated Repurchase and Securities Lending Agreements
Loss Contingencies [Line Items]
Other commitments	45,800	34,300
Auto Loans and Leases
Loss Contingencies [Line Items]
Other commitment, due in next twelve months	$ 3,000	3,000
Other Commitment, Termination Prior Notice Period	12 months
Retail Automotive Loans
Loss Contingencies [Line Items]
Other commitments		345
Residential and Commercial Portfolio Segments | Residential and Commercial Financing Receivable | Loan Purchase Commitments
Loss Contingencies [Line Items]
Other commitments	$ 455	344
Commercial Portfolio Segment | Loan Purchase Commitments
Loss Contingencies [Line Items]
Other commitments	$ 473	$ 994

Commitments and Contingencie101

Commitments and Contingencies - Other Guarantees (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017	Dec. 31, 2017
Representations and Warranties Obligations and Corporate Guarantees
Loss Contingencies [Line Items]
Loss contingency accrual	$ 2,100		$ 2,100		$ 1,900
Merchant Servicing Joint Venture
Loss Contingencies [Line Items]
Equity method investment ownership percentage	49.00%		49.00%
Carrying value of investment	$ 2,800		$ 2,800		2,900
Merchant Processing Servicers, Sponsored Entities
Loss Contingencies [Line Items]
Transactions processed and settled by sponsored entities	226,100	$ 204,600	426,800	$ 391,400
Losses as result of cardholder disputed transactions	9	$ 8	17	$ 15
Life Insurance Book Value Protection
Loss Contingencies [Line Items]
Notional amount of derivatives	10,400		10,400		10,400
Maximum potential exposure	1,600		1,600		1,600
Merchant Services | Merchant Processing Servicers, Sponsored Entities
Loss Contingencies [Line Items]
Maximum potential exposure	346,800		346,800		346,400
Other Guarantee
Loss Contingencies [Line Items]
Maximum potential exposure	$ 6,200		$ 6,200		$ 5,900

Commitments and Contingencie102

Commitments and Contingencies - Litigation and Regulatory Matters (Details) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Loss Contingencies [Line Items]
Litigation settlement expense	$ 86,000,000	$ 192,000,000	$ 202,000,000	$ 466,000,000
Minimum
Loss Contingencies [Line Items]
Estimated range of possible loss	0		0
Maximum
Loss Contingencies [Line Items]
Estimated range of possible loss	$ 1,200,000,000		$ 1,200,000,000

Shareholders' Equity - Declared

Shareholders' Equity - Declared Quarterly Cash Dividends on Common Stock (Details) - $ / shares	Jul. 26, 2018	Apr. 25, 2018	Jan. 31, 2018
Subsequent Event [Line Items]
Dividends per share (in dollars per share)		$ 0.12	$ 0.12
Subsequent Event
Subsequent Event [Line Items]
Dividends per share (in dollars per share)	$ 0.15

Shareholders' Equity - Common S

Shareholders' Equity - Common Stock Narrative (Details) - USD ($) $ / shares in Units, shares in Millions	Jul. 26, 2018	Apr. 25, 2018	Jan. 31, 2018	Jun. 30, 2018	Jun. 30, 2018	Jun. 30, 2017	Jun. 28, 2018
Common Stock
Common stock dividends declared (in dollars per share)		$ 0.12	$ 0.12
Common stock repurchased					$ 9,823,000,000	$ 4,964,000,000
Share-based compensation, number of shares authorized (in shares)				801	801
Common Stock
Common Stock
Stock issued (in shares)					66
Shares paid for tax withholding for share based compensation (in shares)					25
Warrants Expiring October 18, 2018
Common Stock
Warrants outstanding (in shares)				122	122
Minimum required dividend rate (in dollars per share)				$ 0.32	$ 0.32
Exercise price per warrant (in dollars per share)				$ 30.79	$ 30.79
Warrants Expiring January 16, 2019
Common Stock
Warrants outstanding (in shares)				138	138
Minimum required dividend rate (in dollars per share)				$ 0.01	$ 0.01
Exercise price per warrant (in dollars per share)				$ 12.666	$ 12.666
2018 CCAR
Common Stock
Stock repurchase program, authorized amount							$ 20,600,000,000
2018 CCAR, Equity-Based Compensation Plan Effect Offset
Common Stock
Stock repurchase program, authorized amount							$ 600,000,000
2017 CCAR | Common Stock
Common Stock
Common stock repurchased (in shares)				165	318
Common stock repurchased				$ 5,000,000,000	$ 9,800,000,000
Subsequent Event
Common Stock
Common stock dividends declared (in dollars per share)	$ 0.15

Shareholders' Equity - Preferre

Shareholders' Equity - Preferred Stock (Details) - USD ($)	Jul. 24, 2018	May 16, 2018	Jun. 30, 2018	Mar. 31, 2018	Jun. 30, 2018	Jun. 30, 2017
Class of Stock [Line Items]
Preferred stock dividends					$ 746,000,000	$ 863,000,000
Issuance of preferred stock					$ 3,671,000,000
Series GG Preferred Stock
Class of Stock [Line Items]
Shares issued (in shares)		54,000
Per annum dividend rate					6.00%
Issuance of preferred stock					$ 1,350,000,000
Preferred stock liquidation preference			$ 25,000		25,000
Series HH Preferred Stock | Subsequent Event
Class of Stock [Line Items]
Shares issued (in shares)	34,160
Per annum dividend rate	5.875%
Issuance of preferred stock	$ 854,000,000
Preferred stock liquidation preference	$ 25,000
Series K and Series D Preferred Stock
Class of Stock [Line Items]
Redeemed preferred stock			1,500,000,000
Series M Preferred Stock
Class of Stock [Line Items]
Redeemed preferred stock			1,300,000,000
Retained Earnings
Class of Stock [Line Items]
Preferred stock dividends			$ 318,000,000	$ 428,000,000	$ 746,000,000	$ 863,000,000

Accumulated Other Comprehens106

Accumulated Other Comprehensive Income (Loss) - Change in Accumulated OCI (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017	Dec. 31, 2017
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Beginning Balance			$ 267,146	$ 266,195
Accounting change rated to certain tax effects			0
Cumulative adjustment for adoption of hedge accounting standard					$ 25
Net change	$ (1,055)	$ 711	(5,038)	683
Ending Balance	264,216	270,660	264,216	270,660
Accumulated Other Comprehensive Income (Loss)
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Beginning Balance			(7,082)	(7,288)
Accounting change rated to certain tax effects			(1,270)
Cumulative adjustment for adoption of hedge accounting standard					57
Net change			(5,038)	683
Ending Balance	(13,333)	(6,605)	(13,333)	(6,605)
Debt and Equity Securities
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Beginning Balance			(1,206)	(1,267)
Accounting change rated to certain tax effects			(393)
Cumulative adjustment for adoption of hedge accounting standard					0
Net change			(4,994)	469
Ending Balance	(6,593)	(798)	(6,593)	(798)
Debit Valuation Adjustments
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Beginning Balance			(1,060)	(767)
Accounting change rated to certain tax effects			(220)
Cumulative adjustment for adoption of hedge accounting standard					0
Net change			452	(69)
Ending Balance	(828)	(836)	(828)	(836)
Derivatives
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Beginning Balance			(831)	(895)
Accounting change rated to certain tax effects			(189)
Cumulative adjustment for adoption of hedge accounting standard					57
Net change			(367)	132
Ending Balance	(1,330)	(763)	(1,330)	(763)
Employee Benefit Plans
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Beginning Balance			(3,192)	(3,480)
Accounting change rated to certain tax effects			(707)
Cumulative adjustment for adoption of hedge accounting standard					0
Net change			60	54
Ending Balance	(3,839)	(3,426)	(3,839)	(3,426)
Foreign currency
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Beginning Balance			(793)	(879)
Accounting change rated to certain tax effects			239
Cumulative adjustment for adoption of hedge accounting standard					$ 0
Net change			(189)	97
Ending Balance	$ (743)	$ (782)	$ (743)	$ (782)

Accumulated Other Comprehens107

Accumulated Other Comprehensive Income (Loss) - Changes in OCI Components Pre- and After-tax (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
After-tax
Comprehensive income	$ 5,729	$ 5,817	$ 8,664	$ 11,126
Total other comprehensive income (loss)
Pre-tax
Net change			(6,592)	(1)
Tax effect
Net change			1,554	684
After-tax
Comprehensive income			(5,038)	683
Debt and Equity Securities
Pre-tax
Net increase (decrease) in fair value			(6,700)	885
Net realized (gains) losses reclassified into earnings			8	(140)
Net change			(6,692)	745
Tax effect
Net increase (decrease) in fair value			1,702	(330)
Net realized (gains) losses reclassified into earnings			(4)	54
Net change			1,698	(276)
After-tax
Other comprehensive income (loss) before reclassification, net of tax			(4,998)	555
Net realized (gains) losses reclassified into earnings			4	(86)
Comprehensive income			(4,994)	469
Debit Valuation Adjustments
Pre-tax
Net increase (decrease) in fair value			576	(111)
Net realized (gains) losses reclassified into earnings			18	14
Net change			594	(97)
Tax effect
Net increase (decrease) in fair value			(138)	33
Net realized (gains) losses reclassified into earnings			(4)	(5)
Net change			(142)	28
After-tax
Other comprehensive income (loss) before reclassification, net of tax			438	(78)
Net realized (gains) losses reclassified into earnings			14	9
Comprehensive income			452	(69)
Derivatives
Pre-tax
Net increase (decrease) in fair value			(578)	61
Net realized (gains) losses reclassified into earnings			56	149
Net change			(522)	210
Tax effect
Net increase (decrease) in fair value			169	(22)
Net realized (gains) losses reclassified into earnings			(14)	(56)
Net change			155	(78)
After-tax
Other comprehensive income (loss) before reclassification, net of tax			(409)	39
Net realized (gains) losses reclassified into earnings			42	93
Comprehensive income			(367)	132
Derivatives | Net interest income
Pre-tax
Net realized (gains) losses reclassified into earnings			83	220
Tax effect
Net realized (gains) losses reclassified into earnings			(21)	(83)
After-tax
Net realized (gains) losses reclassified into earnings			62	137
Derivatives | Personnel expense
Pre-tax
Net realized (gains) losses reclassified into earnings			(27)	(71)
Tax effect
Net realized (gains) losses reclassified into earnings			7	27
After-tax
Net realized (gains) losses reclassified into earnings			(20)	(44)
Employee Benefit Plans
Pre-tax
Net realized (gains) losses reclassified into earnings			78	85
Net change			78	85
Tax effect
Net realized (gains) losses reclassified into earnings			(18)	(31)
Net change			(18)	(31)
After-tax
Net realized (gains) losses reclassified into earnings			60	54
Comprehensive income			60	54
Net actuarial losses and other
Pre-tax
Net realized (gains) losses reclassified into earnings			78	85
Tax effect
Net realized (gains) losses reclassified into earnings			(18)	(31)
After-tax
Net realized (gains) losses reclassified into earnings			60	54
Foreign currency
Pre-tax
Net increase (decrease) in fair value			(50)	(332)
Net realized (gains) losses reclassified into earnings			0	(612)
Net change			(50)	(944)
Tax effect
Net increase (decrease) in fair value			(138)	336
Net realized (gains) losses reclassified into earnings			(1)	705
Net change			(139)	1,041
After-tax
Other comprehensive income (loss) before reclassification, net of tax			(188)	4
Net realized (gains) losses reclassified into earnings			(1)	93
Comprehensive income			$ (189)	$ 97

Earnings Per Common Share - Bas

Earnings Per Common Share - Basic and Diluted (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Earnings per common share
Net income	$ 6,784	$ 5,106	$ 13,702	$ 10,443
Preferred stock dividends	(318)	(361)	(746)	(863)
Net income applicable to common shareholders	$ 6,466	$ 4,745	$ 12,956	$ 9,580
Average common shares issued and outstanding (in shares)	10,181.7	10,013.5	10,251.7	10,056.1
Earnings per common share (in dollars per share)	$ 0.64	$ 0.47	$ 1.26	$ 0.95
Diluted earnings per common share
Net income applicable to common shareholders	$ 6,466	$ 4,745	$ 12,956	$ 9,580
Add preferred stock dividends due to assumed conversions	0	75	0	150
Net income allocated to common shareholders	$ 6,466	$ 4,820	$ 12,956	$ 9,730
Average common shares issued and outstanding (in shares)	10,181.7	10,013.5	10,251.7	10,056.1
Dilutive potential common shares (in shares)	127.7	821.3	138.2	820.6
Total diluted average common shares issued and outstanding (in shares)	10,309.4	10,834.8	10,389.9	10,876.7
Diluted earnings per common share (in dollars per share)	$ 0.63	$ 0.44	$ 1.25	$ 0.89

Earnings Per Common Share - Nar

Earnings Per Common Share - Narrative (Details) - shares	3 Months Ended			6 Months Ended
	Jun. 30, 2018	Sep. 30, 2017	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Stock Options
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Average options to purchase shares of common stock (in shares)	3,000,000		18,000,000	6,000,000	24,000,000
Series T Preferred Stock
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Per annum dividend rate			6.00%
Dilutive Securities
Incremental common shares attributable to dilutive effect of conversion of preferred stock (in shares)			700,000,000		700,000,000
Series L Preferred Stock | Convertible Preferred Stock Subject to Mandatory Redemption
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Average options to purchase shares of common stock (in shares)	62,000,000		62,000,000	62,000,000	62,000,000
Warrant
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Shares issued (in shares)			700,000,000
Common Stock
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Common stock issued in connection with exercise of warrants and exchange of preferred stock (in shares)		700,000,000
Dilutive Securities
Incremental common shares attributable to dilutive effect of call options and warrants (in shares)	140,000,000		150,000,000	141,000,000	150,000,000
Common Stock | Warrant
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Average options to purchase shares of common stock (in shares)	122,000,000		122,000,000	122,000,000	122,000,000

Fair Value Measurements - Recur

Fair Value Measurements - Recurring Fair Value (Details) - USD ($) $ in Millions	Jun. 30, 2018	Dec. 31, 2017	Jun. 30, 2017
Financial assets
Federal funds sold and securities borrowed or purchased under agreements to resell	$ 59,763	$ 52,906
Trading account assets	203,420	209,358
Derivative assets, gross	360,600	351,600
Derivative assets	45,210	37,762
Total available-for-sale debt securities	262,119	302,631
Other debt securities carried at fair value	13,137	12,486
Loans and leases	6,227	5,710
Loans held-for-sale	2,845	2,156
Other assets	21,883	22,581
Liabilities
Interest-bearing deposits in U.S. offices	513	449
Federal funds purchased and securities loaned or sold under agreements to repurchase, measured at fair value	32,724	36,182
Gross Derivative Liabilities	343,800	346,000
Derivative liabilities	33,605	34,300
Short-term borrowings	3,396	1,494
Long-term debt	28,377	31,786
Derivative liabilities
Assets and Liabilities, Recurring Basis, Supplemental Information:
Liabilities transferred from Level 1 to Level 2	413	3,000
Liabilities transferred from Level 2 to Level 1	1,000	608
Derivative assets
Assets and Liabilities, Recurring Basis, Supplemental Information:
Assets transferred from Level 1 to Level 2	967	4,200
Assets transferred from Level 2 to Level 1	1,500	758
U.S. Treasury and agency securities | Trading Securities
Assets and Liabilities, Recurring Basis, Supplemental Information:
Assets transferred from Level 1 to Level 2		1,100
Equity securities | Trading Securities
Assets and Liabilities, Recurring Basis, Supplemental Information:
Liabilities transferred from Level 1 to Level 2	2,700	3,100
Liabilities transferred from Level 2 to Level 1	2,400	4,300
Equity securities | Trading Securities
Assets and Liabilities, Recurring Basis, Supplemental Information:
Assets transferred from Level 1 to Level 2	6,200	5,300
Assets transferred from Level 2 to Level 1	5,300	14,100
Non-U.S. sovereign debt | Trading Securities
Assets and Liabilities, Recurring Basis, Supplemental Information:
Liabilities transferred from Level 1 to Level 2		1,500
Non-U.S. sovereign debt | Trading Securities
Assets and Liabilities, Recurring Basis, Supplemental Information:
Assets transferred from Level 1 to Level 2		3,300
U.S. Treasury and agency securities
Financial assets
Total available-for-sale debt securities	52,734	53,523
Agency
Financial assets
Total available-for-sale debt securities	157,000	192,929
Agency-collateralized mortgage obligations
Financial assets
Total available-for-sale debt securities	6,035	6,804
Other debt securities carried at fair value	0	5
Non-agency residential
Financial assets
Total available-for-sale debt securities	2,534	2,669
Other debt securities carried at fair value	2,535	2,764
Commercial
Financial assets
Total available-for-sale debt securities	13,600	13,684
Other taxable securities
Financial assets
Total available-for-sale debt securities	4,486	5,770
Other debt securities carried at fair value	202	229
Tax-exempt securities
Financial assets
Total available-for-sale debt securities	19,065	20,575
Recurring
Financial assets
Federal funds sold and securities borrowed or purchased under agreements to resell	59,763	52,906
Trading account assets	203,420	209,358
Netting adjustments	(315,364)	(313,788)
Derivative assets	45,210	37,762
Total available-for-sale debt securities	262,119	302,631
Other debt securities carried at fair value	13,137	12,486
Loans and leases	6,227	5,710
Loans held-for-sale	2,845	2,156
Other assets	21,883	22,581
Total assets	614,604	645,590
Mortgage servicing rights	2,200	2,300
Liabilities
Interest-bearing deposits in U.S. offices	513	449
Federal funds purchased and securities loaned or sold under agreements to repurchase, measured at fair value	32,724	36,182
Total trading account liabilities	87,028	81,187
Netting adjustment	(310,237)	(311,771)
Derivative liabilities	33,605	34,300
Short-term borrowings	3,396	1,494
Accrued expenses and other liabilities	21,178	22,840
Long-term debt	28,377	31,786
Total liabilities	206,821	208,238
Recurring | Securities Segregated for Compliance or Deposited with Clearing Organizations
Financial assets
Trading account assets	13,100	16,800
Recurring | U.S. Treasury and agency securities
Financial assets
Trading account assets	33,670	40,642
Liabilities
Total trading account liabilities	14,291	18,000
Recurring | Corporate securities, trading loans and other
Financial assets
Trading account assets	30,918	30,578
Liabilities
Total trading account liabilities	7,853	6,925
Recurring | Equity securities
Financial assets
Trading account assets	80,431	84,940
Liabilities
Total trading account liabilities	41,187	36,904
Recurring | Non-U.S. sovereign debt
Financial assets
Trading account assets	29,448	22,940
Liabilities
Total trading account liabilities	23,697	19,358
Recurring | U.S. government-sponsored agency guaranteed
Financial assets
Trading account assets	19,341	20,586
Recurring | Mortgage trading loans, ABS and other MBS
Financial assets
Trading account assets	9,612	9,672
Recurring | U.S. Treasury and agency securities
Financial assets
Total available-for-sale debt securities	52,734	53,523
Recurring | Agency
Financial assets
Total available-for-sale debt securities	157,000	192,929
Recurring | Agency-collateralized mortgage obligations
Financial assets
Total available-for-sale debt securities	6,035	6,804
Other debt securities carried at fair value		5
Recurring | Non-agency residential
Financial assets
Total available-for-sale debt securities	2,534	2,669
Other debt securities carried at fair value	2,535	2,764
Recurring | Commercial
Financial assets
Total available-for-sale debt securities	13,600	13,684
Recurring | Non-U.S. securities
Financial assets
Total available-for-sale debt securities	6,665	6,677
Other debt securities carried at fair value	10,400	9,488
Recurring | Other taxable securities
Financial assets
Total available-for-sale debt securities	4,486	5,770
Other debt securities carried at fair value	202	229
Recurring | Tax-exempt securities
Financial assets
Total available-for-sale debt securities	19,065	20,575
Recurring | US Government-sponsored enterprises debt securities
Financial assets
Trading account assets	20,000	21,300
Recurring | Level 1
Financial assets
Federal funds sold and securities borrowed or purchased under agreements to resell	0	0
Trading account assets	97,697	106,012
Derivative assets, gross	8,951	6,305
Total available-for-sale debt securities	51,920	52,687
Other debt securities carried at fair value	9,097	8,191
Loans and leases	0	0
Loans held-for-sale	0	0
Other assets	16,861	19,367
Total assets	184,526	192,562
Liabilities
Interest-bearing deposits in U.S. offices	0	0
Federal funds purchased and securities loaned or sold under agreements to repurchase, measured at fair value	0	0
Total trading account liabilities	63,947	62,261
Gross Derivative Liabilities	8,058	6,029
Short-term borrowings	0	0
Accrued expenses and other liabilities	19,159	21,887
Long-term debt	0	0
Total liabilities	91,164	90,177
Recurring | Level 1 | U.S. Treasury and agency securities
Financial assets
Trading account assets	32,923	38,720
Liabilities
Total trading account liabilities	13,783	17,266
Recurring | Level 1 | Corporate securities, trading loans and other
Financial assets
Trading account assets	0	0
Liabilities
Total trading account liabilities	0	0
Recurring | Level 1 | Equity securities
Financial assets
Trading account assets	55,128	60,747
Liabilities
Total trading account liabilities	37,221	33,019
Recurring | Level 1 | Non-U.S. sovereign debt
Financial assets
Trading account assets	9,646	6,545
Liabilities
Total trading account liabilities	12,943	11,976
Recurring | Level 1 | U.S. government-sponsored agency guaranteed
Financial assets
Trading account assets	0	0
Recurring | Level 1 | Mortgage trading loans, ABS and other MBS
Financial assets
Trading account assets	0	0
Recurring | Level 1 | U.S. Treasury and agency securities
Financial assets
Total available-for-sale debt securities	51,173	51,915
Recurring | Level 1 | Agency
Financial assets
Total available-for-sale debt securities	0	0
Recurring | Level 1 | Agency-collateralized mortgage obligations
Financial assets
Total available-for-sale debt securities	0	0
Other debt securities carried at fair value		0
Recurring | Level 1 | Non-agency residential
Financial assets
Total available-for-sale debt securities	0	0
Other debt securities carried at fair value	0	0
Recurring | Level 1 | Commercial
Financial assets
Total available-for-sale debt securities	0	0
Recurring | Level 1 | Non-U.S. securities
Financial assets
Total available-for-sale debt securities	747	772
Other debt securities carried at fair value	9,097	8,191
Recurring | Level 1 | Other taxable securities
Financial assets
Total available-for-sale debt securities	0	0
Other debt securities carried at fair value	0	0
Recurring | Level 1 | Tax-exempt securities
Financial assets
Total available-for-sale debt securities	0	0
Recurring | Level 2
Financial assets
Federal funds sold and securities borrowed or purchased under agreements to resell	59,763	52,906
Trading account assets	101,966	99,193
Derivative assets, gross	347,112	341,178
Total available-for-sale debt securities	209,643	248,941
Other debt securities carried at fair value	3,753	4,295
Loans and leases	5,734	5,139
Loans held-for-sale	2,268	1,466
Other assets	1,838	789
Total assets	732,077	753,907
Liabilities
Interest-bearing deposits in U.S. offices	513	449
Federal funds purchased and securities loaned or sold under agreements to repurchase, measured at fair value	32,724	36,182
Total trading account liabilities	23,046	18,902
Gross Derivative Liabilities	329,685	334,261
Short-term borrowings	3,396	1,494
Accrued expenses and other liabilities	2,019	945
Long-term debt	27,152	29,923
Total liabilities	418,535	422,156
Recurring | Level 2 | U.S. Treasury and agency securities
Financial assets
Trading account assets	747	1,922
Liabilities
Total trading account liabilities	508	734
Recurring | Level 2 | Corporate securities, trading loans and other
Financial assets
Trading account assets	29,280	28,714
Liabilities
Total trading account liabilities	7,818	6,901
Recurring | Level 2 | Equity securities
Financial assets
Trading account assets	25,075	23,958
Liabilities
Total trading account liabilities	3,966	3,885
Recurring | Level 2 | Non-U.S. sovereign debt
Financial assets
Trading account assets	19,434	15,839
Liabilities
Total trading account liabilities	10,754	7,382
Recurring | Level 2 | U.S. government-sponsored agency guaranteed
Financial assets
Trading account assets	19,341	20,586
Recurring | Level 2 | Mortgage trading loans, ABS and other MBS
Financial assets
Trading account assets	8,089	8,174
Recurring | Level 2 | U.S. Treasury and agency securities
Financial assets
Total available-for-sale debt securities	1,561	1,608
Recurring | Level 2 | Agency
Financial assets
Total available-for-sale debt securities	157,000	192,929
Recurring | Level 2 | Agency-collateralized mortgage obligations
Financial assets
Total available-for-sale debt securities	6,035	6,804
Other debt securities carried at fair value		5
Recurring | Level 2 | Non-agency residential
Financial assets
Total available-for-sale debt securities	2,081	2,669
Other debt securities carried at fair value	2,248	2,764
Recurring | Level 2 | Commercial
Financial assets
Total available-for-sale debt securities	13,600	13,684
Recurring | Level 2 | Non-U.S. securities
Financial assets
Total available-for-sale debt securities	5,915	5,880
Other debt securities carried at fair value	1,303	1,297
Recurring | Level 2 | Other taxable securities
Financial assets
Total available-for-sale debt securities	4,387	5,261
Other debt securities carried at fair value	202	229
Recurring | Level 2 | Tax-exempt securities
Financial assets
Total available-for-sale debt securities	19,064	20,106
Recurring | Level 3
Financial assets
Federal funds sold and securities borrowed or purchased under agreements to resell	0	0
Trading account assets	3,757	4,153
Derivative assets, gross	4,511	4,067	$ 4,000
Total available-for-sale debt securities	556	1,003
Other debt securities carried at fair value	287	0
Loans and leases	493	571
Loans held-for-sale	577	690
Other assets	3,184	2,425
Total assets	13,365	12,909
Liabilities
Interest-bearing deposits in U.S. offices	0	0
Federal funds purchased and securities loaned or sold under agreements to repurchase, measured at fair value	0	0
Total trading account liabilities	35	24
Gross Derivative Liabilities	6,099	5,781	$ 5,800
Short-term borrowings	0	0
Accrued expenses and other liabilities	0	8
Long-term debt	1,225	1,863
Total liabilities	7,359	7,676
Recurring | Level 3 | U.S. Treasury and agency securities
Financial assets
Trading account assets	0	0
Liabilities
Total trading account liabilities	0	0
Recurring | Level 3 | Corporate securities, trading loans and other
Financial assets
Trading account assets	1,638	1,864
Total assets	1,600	1,900
Liabilities
Total trading account liabilities	35	24
Recurring | Level 3 | Equity securities
Financial assets
Trading account assets	228	235
Liabilities
Total trading account liabilities	0	0
Recurring | Level 3 | Non-U.S. sovereign debt
Financial assets
Trading account assets	368	556
Total assets	368	556
Liabilities
Total trading account liabilities	0	0
Recurring | Level 3 | U.S. government-sponsored agency guaranteed
Financial assets
Trading account assets	0	0
Recurring | Level 3 | Mortgage trading loans, ABS and other MBS
Financial assets
Trading account assets	1,523	1,498
Total assets	1,500	1,500
Recurring | Level 3 | U.S. Treasury and agency securities
Financial assets
Total available-for-sale debt securities	0	0
Recurring | Level 3 | Agency
Financial assets
Total available-for-sale debt securities	0	0
Recurring | Level 3 | Agency-collateralized mortgage obligations
Financial assets
Total available-for-sale debt securities	0	0
Other debt securities carried at fair value		0
Recurring | Level 3 | Non-agency residential
Financial assets
Total available-for-sale debt securities	453	0
Other debt securities carried at fair value	287	0
Recurring | Level 3 | Commercial
Financial assets
Total available-for-sale debt securities	0	0
Recurring | Level 3 | Non-U.S. securities
Financial assets
Total available-for-sale debt securities	3	25
Other debt securities carried at fair value	0	0
Recurring | Level 3 | Other taxable securities
Financial assets
Total available-for-sale debt securities	99	509
Other debt securities carried at fair value	0	0
Total assets		509
Recurring | Level 3 | Tax-exempt securities
Financial assets
Total available-for-sale debt securities	$ 1	469
Total assets		$ 469

Fair Value Measurements - Recon

Fair Value Measurements - Reconciliation (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017	Dec. 31, 2017
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Input Reconciliation [Roll Forward]
Balance, beginning	$ (1,138)	$ (1,665)	$ (1,714)	$ (1,313)
Total Realized/Unrealized Gains/(Losses)	(239)	(372)	256	(846)
Gains (Losses) in OCI	0	0	0	0
Purchases	195	208	348	408
Sales	(591)	(229)	(853)	(476)
Issuances	0	0	0	0
Settlements	175	274	377	444
Gross Transfers into Level 3	(4)	0	67	29
Gross Transfers out of Level 3	14	(19)	(69)	(49)
Balance, ending	(1,588)	(1,803)	(1,588)	(1,803)
Change in Unrealized Gains/(Losses) Related to Financial Instruments Still Held	(251)	(368)	325	(773)
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Gross Derivative Assets	360,600		360,600		$ 351,600
Gross Derivative Liabilities	343,800		343,800		346,000
Federal funds purchased and securities loaned or sold under agreements to repurchase
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Balance, beginning		(226)		(359)
Total Realized/Unrealized Gains/(Losses)		(6)		(5)
Gains (Losses) in OCI		0		0
Purchases		0		0
Sales		0		0
Issuances		(10)		(12)
Settlements		8		36
Gross Transfers into Level 3		(58)		(58)
Gross Transfers out of Level 3		157		263
Balance, ending		(135)		(135)
Change in Unrealized Gains/(Losses) Related to Financial Instruments Still Held		(6)		(3)
Corporate securities, trading loans and other
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Balance, beginning	(26)	(35)	(24)	(27)
Total Realized/Unrealized Gains/(Losses)	1	10	2	12
Gains (Losses) in OCI	0	0	0	0
Purchases	0	4	0	4
Sales	(9)	0	(11)	(10)
Issuances	(1)	(1)	(2)	(1)
Settlements	0	0	0	0
Gross Transfers into Level 3	0	0	0	0
Gross Transfers out of Level 3	0	0	0	0
Balance, ending	(35)	(22)	(35)	(22)
Change in Unrealized Gains/(Losses) Related to Financial Instruments Still Held	1	(1)	1	(1)
Accrued expenses and other liabilities
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Balance, beginning	(8)	(9)	(8)	(9)
Total Realized/Unrealized Gains/(Losses)	0	0	0	0
Gains (Losses) in OCI	0	0	0	0
Purchases	0	0	0	0
Sales	0	0	0	0
Issuances	0	0	0	0
Settlements	8	0	8	0
Gross Transfers into Level 3	0	0	0	0
Gross Transfers out of Level 3	0	0	0	0
Balance, ending	0	(9)	0	(9)
Change in Unrealized Gains/(Losses) Related to Financial Instruments Still Held	0	0	0	0
Long-term debt
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Balance, beginning	(1,351)	(1,660)	(1,863)	(1,514)
Total Realized/Unrealized Gains/(Losses)	63	10	86	(73)
Gains (Losses) in OCI	2	(18)	3	(11)
Purchases	4	7	9	18
Sales	0	0	0	0
Issuances	(53)	(20)	(120)	(150)
Settlements	151	124	323	283
Gross Transfers into Level 3	(114)	(108)	(147)	(286)
Gross Transfers out of Level 3	73	19	484	87
Balance, ending	(1,225)	(1,646)	(1,225)	(1,646)
Change in Unrealized Gains/(Losses) Related to Financial Instruments Still Held	66	10	51	(38)
Level 3 | Recurring
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Input Reconciliation [Roll Forward]
Balance, beginning			(1,714)
Balance, ending	(1,588)		(1,588)
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Gross Derivative Assets	4,511	4,000	4,511	4,000	4,067
Gross Derivative Liabilities	6,099	5,800	6,099	5,800	$ 5,781
Corporate securities, trading loans and other
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Balance, beginning	1,716	2,029	1,864	2,777
Total Realized/Unrealized Gains/(Losses)	(37)	64	(28)	148
Gains (Losses) in OCI	(1)	0	(1)	0
Purchases	81	119	274	318
Sales	(75)	(120)	(211)	(600)
Issuances	0	0	0	0
Settlements	(74)	(108)	(213)	(235)
Gross Transfers into Level 3	145	143	248	218
Gross Transfers out of Level 3	(117)	(350)	(295)	(849)
Balance, ending	1,638	1,777	1,638	1,777
Change in Unrealized Gains/(Losses) Related to Financial Instruments Still Held	(67)	30	(76)	57
Equity securities
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Balance, beginning	212	288	235	281
Total Realized/Unrealized Gains/(Losses)	1	3	9	15
Gains (Losses) in OCI	0	0	0	0
Purchases	2	22	8	42
Sales	(4)	(47)	(11)	(64)
Issuances	0	0	0	0
Settlements	(4)	0	(4)	(10)
Gross Transfers into Level 3	29	30	30	102
Gross Transfers out of Level 3	(8)	(67)	(39)	(137)
Balance, ending	228	229	228	229
Change in Unrealized Gains/(Losses) Related to Financial Instruments Still Held	(3)	0	9	(1)
Non-U.S. sovereign debt
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Balance, beginning	401	527	556	510
Total Realized/Unrealized Gains/(Losses)	13	12	29	31
Gains (Losses) in OCI	(44)	(16)	(42)	(6)
Purchases	7	26	7	26
Sales	0	(50)	(50)	(59)
Issuances	0	0	0	0
Settlements	0	(62)	(8)	(68)
Gross Transfers into Level 3	8	69	8	72
Gross Transfers out of Level 3	(17)	0	(132)	0
Balance, ending	368	506	368	506
Change in Unrealized Gains/(Losses) Related to Financial Instruments Still Held	13	12	28	27
Mortgage trading loans, ABS and other MBS
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Balance, beginning	1,372	1,215	1,498	1,211
Total Realized/Unrealized Gains/(Losses)	42	78	141	185
Gains (Losses) in OCI	0	(1)	3	(1)
Purchases	192	258	317	597
Sales	(256)	(314)	(576)	(689)
Issuances	0	0	0	0
Settlements	(38)	(69)	(107)	(123)
Gross Transfers into Level 3	256	76	350	104
Gross Transfers out of Level 3	(45)	(11)	(103)	(52)
Balance, ending	1,523	1,232	1,523	1,232
Change in Unrealized Gains/(Losses) Related to Financial Instruments Still Held	32	53	81	117
Trading Securities
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Balance, beginning	3,701	4,059	4,153	4,779
Total Realized/Unrealized Gains/(Losses)	19	157	151	379
Gains (Losses) in OCI	(45)	(17)	(40)	(7)
Purchases	282	425	606	983
Sales	(335)	(531)	(848)	(1,412)
Issuances	0	0	0	0
Settlements	(116)	(239)	(332)	(436)
Gross Transfers into Level 3	438	318	636	496
Gross Transfers out of Level 3	(187)	(428)	(569)	(1,038)
Balance, ending	3,757	3,744	3,757	3,744
Change in Unrealized Gains/(Losses) Related to Financial Instruments Still Held	(25)	95	42	200
Non-agency residential MBS
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Balance, beginning	0		0
Total Realized/Unrealized Gains/(Losses)	8		8
Gains (Losses) in OCI	(14)		(14)
Purchases	0		0
Sales	0		0
Issuances	0		0
Settlements	0		0
Gross Transfers into Level 3	459		459
Gross Transfers out of Level 3	0		0
Balance, ending	453		453
Change in Unrealized Gains/(Losses) Related to Financial Instruments Still Held	0		0
Non-U.S. securities
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Balance, beginning	23	207	25	229
Total Realized/Unrealized Gains/(Losses)	0	1	0	1
Gains (Losses) in OCI	(1)	9	(1)	12
Purchases	0	22	0	42
Sales	(10)	0	(10)	0
Issuances	0	0	0	0
Settlements	(12)	(100)	(14)	(145)
Gross Transfers into Level 3	3	0	3	0
Gross Transfers out of Level 3	0	0	0	0
Balance, ending	3	139	3	139
Change in Unrealized Gains/(Losses) Related to Financial Instruments Still Held	0	0	0	0
Other taxable securities
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Balance, beginning	43	579	509	594
Total Realized/Unrealized Gains/(Losses)	1	0	2	3
Gains (Losses) in OCI	(2)	1	(2)	5
Purchases	0	5	0	5
Sales	0	0	0	0
Issuances	0	0	0	0
Settlements	(3)	(8)	(10)	(30)
Gross Transfers into Level 3	60	0	60	0
Gross Transfers out of Level 3	0	(94)	(460)	(94)
Balance, ending	99	483	99	483
Change in Unrealized Gains/(Losses) Related to Financial Instruments Still Held	0	0	0	0
Tax-exempt securities
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Balance, beginning	0	520	469	542
Total Realized/Unrealized Gains/(Losses)	0	0	0	0
Gains (Losses) in OCI	0	(2)	0	0
Purchases	0	0	0	0
Sales	0	0	0	(56)
Issuances	0	0	0	0
Settlements	0	0	0	(3)
Gross Transfers into Level 3	1	0	1	35
Gross Transfers out of Level 3	0	0	(469)	0
Balance, ending	1	518	1	518
Change in Unrealized Gains/(Losses) Related to Financial Instruments Still Held	0	0	0	0
Available-for-sale Securities
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Balance, beginning	66	1,306	1,003	1,365
Total Realized/Unrealized Gains/(Losses)	9	1	10	4
Gains (Losses) in OCI	(17)	8	(17)	17
Purchases	0	27	0	47
Sales	(10)	0	(10)	(56)
Issuances	0	0	0	0
Settlements	(15)	(108)	(24)	(178)
Gross Transfers into Level 3	523	0	523	35
Gross Transfers out of Level 3	0	(94)	(929)	(94)
Balance, ending	556	1,140	556	1,140
Change in Unrealized Gains/(Losses) Related to Financial Instruments Still Held	0	0	0	0
Other debt securities carried at fair value – Non-agency residential MBS
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Balance, beginning	0	24	0	25
Total Realized/Unrealized Gains/(Losses)	(4)	0	(4)	(1)
Gains (Losses) in OCI	0	0	0	0
Purchases	0	0	0	0
Sales	(7)	0	(7)	0
Issuances	0	0	0	0
Settlements	0	(1)	0	(1)
Gross Transfers into Level 3	298	0	298	0
Gross Transfers out of Level 3	0	0	0	0
Balance, ending	287	23	287	23
Change in Unrealized Gains/(Losses) Related to Financial Instruments Still Held	5	0	5	0
Loans and leases
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Balance, beginning	526	702	571	720
Total Realized/Unrealized Gains/(Losses)	(4)	6	(20)	18
Gains (Losses) in OCI	0	0	0	0
Purchases	0	0	0	0
Sales	(5)	0	(9)	0
Issuances	0	0	0	0
Settlements	(24)	(34)	(49)	(64)
Gross Transfers into Level 3	0	0	0	0
Gross Transfers out of Level 3	0	(7)	0	(7)
Balance, ending	493	667	493	667
Change in Unrealized Gains/(Losses) Related to Financial Instruments Still Held	(4)	6	(19)	16
Loans Held-for-Sale
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Balance, beginning	685	792	690	656
Total Realized/Unrealized Gains/(Losses)	(12)	42	12	71
Gains (Losses) in OCI	(27)	(9)	(27)	(3)
Purchases	0	2	12	2
Sales	0	(19)	0	(155)
Issuances	0	0	0	0
Settlements	(37)	(128)	(78)	(188)
Gross Transfers into Level 3	0	100	0	415
Gross Transfers out of Level 3	(32)	(14)	(32)	(32)
Balance, ending	577	766	577	766
Change in Unrealized Gains/(Losses) Related to Financial Instruments Still Held	(16)	26	5	71
Other assets
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Balance, beginning	3,295	2,841	2,425	2,986
Total Realized/Unrealized Gains/(Losses)	76	2	268	(31)
Gains (Losses) in OCI	0	12	0	12
Purchases	2	2	2	2
Sales	(8)	1	(46)	6
Issuances	23	63	52	138
Settlements	(169)	(190)	(411)	(382)
Gross Transfers into Level 3	0	64	929	64
Gross Transfers out of Level 3	(35)	0	(35)	0
Balance, ending	3,184	2,795	3,184	2,795
Change in Unrealized Gains/(Losses) Related to Financial Instruments Still Held	$ 8	$ (71)	$ 145	$ (194)

Fair Value Measurements - Re112

Fair Value Measurements - Recurring Fair Value Inputs (Details) - USD ($)	6 Months Ended	12 Months Ended
	Jun. 30, 2018	Dec. 31, 2017	Mar. 31, 2018	Jun. 30, 2017	Mar. 31, 2017	Dec. 31, 2016
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Net derivative asset (liability)	$ (1,588,000,000)	$ (1,714,000,000)	$ (1,138,000,000)	$ (1,803,000,000)	$ (1,665,000,000)	$ (1,313,000,000)
Recurring
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Assets, fair value	614,604,000,000	645,590,000,000
Long-term debt	(206,821,000,000)	(208,238,000,000)
Recurring | Level 3
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Assets, fair value	13,365,000,000	12,909,000,000
Long-term debt	(7,359,000,000)	(7,676,000,000)
Net derivative asset (liability)	$ (1,588,000,000)	$ (1,714,000,000)
Recurring | Level 3 | Discounted cash flow, Market comparables, Industry standard derivative pricing
Fair Value Inputs [Abstract]
Yield		7.50%
Recurring | Level 3 | Minimum | Discounted cash flow, Market comparables
Fair Value Inputs [Abstract]
Price (in dollars per share)	$ 10
Recurring | Level 3 | Minimum | Discounted cash flow, Market comparables, Industry standard derivative pricing
Fair Value Inputs [Abstract]
Yield	13.00%
Price (in dollars per share)	$ 0	$ 0
Equity correlation	11.00%	15.00%
Long-dated equity volatilities	4.00%	4.00%
Recurring | Level 3 | Maximum | Discounted cash flow, Market comparables
Fair Value Inputs [Abstract]
Price (in dollars per share)	$ 100
Recurring | Level 3 | Maximum | Discounted cash flow, Market comparables, Industry standard derivative pricing
Fair Value Inputs [Abstract]
Yield	36.00%
Price (in dollars per share)	$ 100	$ 100
Equity correlation	100.00%	100.00%
Long-dated equity volatilities	75.00%	84.00%
Recurring | Level 3 | Weighted Average | Discounted cash flow, Market comparables
Fair Value Inputs [Abstract]
Price (in dollars per share)	$ 96
Recurring | Level 3 | Weighted Average | Discounted cash flow, Market comparables, Industry standard derivative pricing
Fair Value Inputs [Abstract]
Yield	16.00%
Price (in dollars per share)	$ 74	$ 66
Equity correlation	62.00%	63.00%
Long-dated equity volatilities	24.00%	22.00%
Recurring | Level 3 | Other assets
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Assets, fair value	$ 955,000,000
Recurring | Level 3 | Loans and leases
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Assets, fair value	493,000,000	$ 571,000,000
Recurring | Level 3 | Loans Held-for-Sale
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Assets, fair value	577,000,000	690,000,000
Recurring | Level 3 | Credit derivatives
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Net derivative asset (liability)	$ (528,000,000)	$ (282,000,000)
Recurring | Level 3 | Credit derivatives | Discounted cash flow, Stochastic recovery correlation model
Fair Value Inputs [Abstract]
Loss severity	35.00%	35.00%
Recurring | Level 3 | Credit derivatives | Minimum | Discounted cash flow, Stochastic recovery correlation model
Fair Value Inputs [Abstract]
Yield	2.00%	1.00%
Prepayment speed	15.00%	15.00%
Default rate	1.00%	1.00%
Price (in dollars per share)	$ 0	$ 0
Upfront points	0.00%	0.00%
Credit correlation	70.00%	35.00%
Recurring | Level 3 | Credit derivatives | Maximum | Discounted cash flow, Stochastic recovery correlation model
Fair Value Inputs [Abstract]
Yield	12.00%	5.00%
Prepayment speed	20.00%	20.00%
Default rate	4.00%	4.00%
Price (in dollars per share)	$ 101	$ 102
Upfront points	1.00%	1.00%
Credit correlation		83.00%
Recurring | Level 3 | Credit derivatives | Weighted Average | Discounted cash flow, Stochastic recovery correlation model
Fair Value Inputs [Abstract]
Yield	4.00%	3.00%
Prepayment speed	15.00%	16.00%
Default rate	2.00%	2.00%
Price (in dollars per share)	$ 72	$ 82
Upfront points	0.70%	0.71%
Credit correlation		42.00%
Recurring | Level 3 | Equity contracts
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Net derivative asset (liability)	$ (1,651,000,000)	$ (2,059,000,000)
Recurring | Level 3 | Equity contracts | Minimum | Industry standard derivative pricing
Fair Value Inputs [Abstract]
Equity correlation	11.00%	15.00%
Long-dated equity volatilities	4.00%	4.00%
Recurring | Level 3 | Equity contracts | Maximum | Industry standard derivative pricing
Fair Value Inputs [Abstract]
Equity correlation	100.00%	100.00%
Long-dated equity volatilities	75.00%	84.00%
Recurring | Level 3 | Equity contracts | Weighted Average | Industry standard derivative pricing
Fair Value Inputs [Abstract]
Equity correlation	62.00%	63.00%
Long-dated equity volatilities	24.00%	22.00%
Recurring | Level 3 | Commodity contracts
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Net derivative asset (liability)	$ (13,000,000)	$ (3,000,000)
Recurring | Level 3 | Commodity contracts | Minimum | Discounted cash flow, Industry standard derivative pricing
Fair Value Inputs [Abstract]
Long-dated equity volatilities	11.00%	26.00%
Natural gas forward price	$ 1	$ 1
Correlation	62.00%	71.00%
Recurring | Level 3 | Commodity contracts | Maximum | Discounted cash flow, Industry standard derivative pricing
Fair Value Inputs [Abstract]
Long-dated equity volatilities	465.00%	132.00%
Natural gas forward price	$ 7	$ 5
Correlation	93.00%	87.00%
Recurring | Level 3 | Commodity contracts | Weighted Average | Discounted cash flow, Industry standard derivative pricing
Fair Value Inputs [Abstract]
Long-dated equity volatilities	122.00%	57.00%
Natural gas forward price	$ 3	$ 3
Correlation	81.00%	81.00%
Recurring | Level 3 | Interest rate contracts
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Net derivative asset (liability)	$ 604,000,000	$ 630,000,000
Recurring | Level 3 | Interest rate contracts | Minimum | Industry standard derivative pricing
Fair Value Inputs [Abstract]
Correlation (IR/IR)	15.00%	15.00%
Correlation (FX/IR)	0.00%	0.00%
Long-dated inflation rates	(18.00%)	(14.00%)
Long-dated inflation volatilities	0.00%	0.00%
Recurring | Level 3 | Interest rate contracts | Maximum | Industry standard derivative pricing
Fair Value Inputs [Abstract]
Correlation (IR/IR)	70.00%	92.00%
Correlation (FX/IR)	46.00%	46.00%
Long-dated inflation rates	34.00%	38.00%
Long-dated inflation volatilities	1.00%	1.00%
Recurring | Level 3 | Interest rate contracts | Weighted Average | Industry standard derivative pricing
Fair Value Inputs [Abstract]
Correlation (IR/IR)	47.00%	50.00%
Correlation (FX/IR)	1.00%	1.00%
Long-dated inflation rates	2.00%	4.00%
Long-dated inflation volatilities	1.00%	1.00%
Recurring | Level 3 | Long-term debt
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Long-term debt	$ (1,225,000,000)	$ (1,863,000,000)
Recurring | Level 3 | Mortgage trading loans, ABS and other MBS
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Assets, fair value	1,500,000,000	1,500,000,000
Recurring | Level 3 | Corporate securities, trading loans and other
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Assets, fair value	1,600,000,000	1,900,000,000
Recurring | Level 3 | Non-U.S. sovereign debt
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Assets, fair value	368,000,000	556,000,000
Recurring | Level 3 | Other taxable securities
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Assets, fair value		509,000,000
Recurring | Level 3 | Tax-exempt securities
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Assets, fair value		469,000,000
Recurring | Level 3 | Instruments backed by residential real estate assets
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Assets, fair value	$ 1,656,000,000	$ 871,000,000
Recurring | Level 3 | Instruments backed by residential real estate assets | Minimum | Discounted cash flow, Market comparables
Fair Value Inputs [Abstract]
Yield	0.00%
Prepayment speed	0.00%
Default rate	0.00%
Loss severity	0.00%
Price (in dollars per share)	$ 0
Recurring | Level 3 | Instruments backed by residential real estate assets | Minimum | Discounted cash flow, Stochastic recovery correlation model
Fair Value Inputs [Abstract]
Yield		0.00%
Prepayment speed		0.00%
Default rate		0.00%
Loss severity		0.00%
Recurring | Level 3 | Instruments backed by residential real estate assets | Maximum | Discounted cash flow, Market comparables
Fair Value Inputs [Abstract]
Yield	25.00%
Prepayment speed	20.00%
Default rate	3.00%
Loss severity	52.00%
Price (in dollars per share)	$ 198
Recurring | Level 3 | Instruments backed by residential real estate assets | Maximum | Discounted cash flow, Stochastic recovery correlation model
Fair Value Inputs [Abstract]
Yield		25.00%
Prepayment speed		22.00%
Default rate		3.00%
Loss severity		53.00%
Recurring | Level 3 | Instruments backed by residential real estate assets | Weighted Average | Discounted cash flow, Market comparables
Fair Value Inputs [Abstract]
Yield	7.00%	6.00%
Prepayment speed	11.00%	12.00%
Default rate	1.00%	1.00%
Loss severity	17.00%	17.00%
Price (in dollars per share)	$ 71
Recurring | Level 3 | Instruments backed by residential real estate assets | Available-for-sale Securities
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Assets, fair value	$ 556,000,000
Recurring | Level 3 | Instruments backed by residential real estate assets | Other debt securities carried at fair value – Non-agency residential MBS
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Assets, fair value	287,000,000
Recurring | Level 3 | Instruments backed by residential real estate assets | Loans and leases
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Assets, fair value	492,000,000	$ 570,000,000
Recurring | Level 3 | Instruments backed by residential real estate assets | Loans Held-for-Sale
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Assets, fair value	1,000,000	3,000,000
Recurring | Level 3 | Instruments backed by residential real estate assets | Mortgage trading loans, ABS and other MBS | Trading Securities
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Assets, fair value	320,000,000	298,000,000
Recurring | Level 3 | Instruments backed by commercial real estate assets
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Assets, fair value	$ 355,000,000	$ 286,000,000
Recurring | Level 3 | Instruments backed by commercial real estate assets | Minimum | Discounted cash flow, Stochastic recovery correlation model
Fair Value Inputs [Abstract]
Yield	0.00%	0.00%
Price (in dollars per share)	$ 0	$ 0
Recurring | Level 3 | Instruments backed by commercial real estate assets | Maximum | Discounted cash flow, Stochastic recovery correlation model
Fair Value Inputs [Abstract]
Yield	25.00%	25.00%
Price (in dollars per share)	$ 101	$ 100
Recurring | Level 3 | Instruments backed by commercial real estate assets | Weighted Average | Discounted cash flow, Market comparables
Fair Value Inputs [Abstract]
Yield		9.00%
Price (in dollars per share)		$ 67
Recurring | Level 3 | Instruments backed by commercial real estate assets | Weighted Average | Discounted cash flow, Stochastic recovery correlation model
Fair Value Inputs [Abstract]
Yield	14.00%
Price (in dollars per share)	$ 77
Recurring | Level 3 | Instruments backed by commercial real estate assets | Mortgage trading loans, ABS and other MBS
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Assets, fair value	$ 98,000,000	$ 42,000,000
Recurring | Level 3 | Instruments backed by commercial real estate assets | Corporate securities, trading loans and other
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Assets, fair value	257,000,000	244,000,000
Recurring | Level 3 | Commercial loans, debt securities and other
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Assets, fair value	$ 3,431,000,000	$ 4,023,000,000
Recurring | Level 3 | Commercial loans, debt securities and other | Minimum | Discounted cash flow, Market comparables
Fair Value Inputs [Abstract]
Yield	1.00%	0.00%
Prepayment speed	10.00%	10.00%
Default rate	3.00%	3.00%
Loss severity	35.00%	35.00%
Price (in dollars per share)	$ 0	$ 0
Recurring | Level 3 | Commercial loans, debt securities and other | Maximum | Discounted cash flow, Market comparables
Fair Value Inputs [Abstract]
Yield	36.00%	12.00%
Prepayment speed	20.00%	20.00%
Default rate	4.00%	4.00%
Loss severity	40.00%	40.00%
Price (in dollars per share)	$ 141	$ 145
Recurring | Level 3 | Commercial loans, debt securities and other | Weighted Average | Discounted cash flow, Market comparables
Fair Value Inputs [Abstract]
Yield	12.00%	5.00%
Prepayment speed	14.00%	16.00%
Default rate	4.00%	4.00%
Loss severity	38.00%	37.00%
Price (in dollars per share)	$ 67	$ 63
Recurring | Level 3 | Commercial loans, debt securities and other | Loans and leases
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Assets, fair value	$ 1,000,000	$ 1,000,000
Recurring | Level 3 | Commercial loans, debt securities and other | Loans Held-for-Sale
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Assets, fair value	576,000,000	687,000,000
Recurring | Level 3 | Commercial loans, debt securities and other | Mortgage trading loans, ABS and other MBS | Trading Securities
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Assets, fair value	1,105,000,000	1,158,000,000
Recurring | Level 3 | Commercial loans, debt securities and other | Corporate securities, trading loans and other | Trading Securities
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Assets, fair value	1,381,000,000	1,613,000,000
Recurring | Level 3 | Commercial loans, debt securities and other | Non-U.S. sovereign debt | Trading Securities
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Assets, fair value	368,000,000	556,000,000
Recurring | Level 3 | Commercial loans, debt securities and other | Other taxable securities | Available-for-sale Securities
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Assets, fair value		8,000,000
Recurring | Level 3 | Auction rate securities
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Assets, fair value		$ 977,000,000
Recurring | Level 3 | Auction rate securities | Minimum | Discounted cash flow, Market comparables
Fair Value Inputs [Abstract]
Price (in dollars per share)		$ 10
Recurring | Level 3 | Auction rate securities | Maximum | Discounted cash flow, Market comparables
Fair Value Inputs [Abstract]
Price (in dollars per share)		100
Recurring | Level 3 | Auction rate securities | Weighted Average | Discounted cash flow, Market comparables
Fair Value Inputs [Abstract]
Price (in dollars per share)		$ 94
Recurring | Level 3 | Auction rate securities | Corporate securities, trading loans and other | Trading Securities
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Assets, fair value		$ 7,000,000
Recurring | Level 3 | Auction rate securities | Other taxable securities | Available-for-sale Securities
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Assets, fair value		501,000,000
Recurring | Level 3 | Auction rate securities | Tax-exempt securities | Available-for-sale Securities
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Assets, fair value		469,000,000
Recurring | Level 3 | MSRs
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Assets, fair value	$ 2,229,000,000	$ 2,302,000,000
Recurring | Level 3 | MSRs | Minimum | Discounted cash flow, Stochastic recovery correlation model
Fair Value Inputs [Abstract]
Weighted-average life, fixed rate	0 years	0 years
Weighted-average life, variable rate	0 years	0 years
Option Adjusted Spread, fixed rate	9.00%	9.00%
Option Adjusted Spread, variable rate	9.00%	9.00%
Recurring | Level 3 | MSRs | Maximum | Discounted cash flow, Stochastic recovery correlation model
Fair Value Inputs [Abstract]
Weighted-average life, fixed rate	14 years	14 years
Weighted-average life, variable rate	10 years	10 years
Option Adjusted Spread, fixed rate	14.00%	14.00%
Option Adjusted Spread, variable rate	15.00%	15.00%
Recurring | Level 3 | MSRs | Weighted Average | Discounted cash flow, Stochastic recovery correlation model
Fair Value Inputs [Abstract]
Weighted-average life, fixed rate	6 years	5 years
Weighted-average life, variable rate	3 years	3 years
Option Adjusted Spread, fixed rate	10.00%	10.00%
Option Adjusted Spread, variable rate	12.00%	12.00%

Fair Value Measurements - Mortg

Fair Value Measurements - Mortgage Servicing Rights (Details) $ in Millions	Jun. 30, 2018USD ($)
Fair Value Disclosures [Abstract]
Impact of 10 percent decrease in prepayment speed	$ 67
Impact of 20 percent decrease in prepayment speed	139
Impact of 10 percent increase in prepayment speed	(62)
Impact of 20 percent increase in prepayment speed	(120)
Impact of 100 basis points decrease in option adjusted spread	68
Impact of 200 basis points decrease in option adjusted spread	142
Impact of 100 basis points increase in option adjusted spread	(64)
Impact of 200 basis points increase in option adjusted spread	$ (124)

Fair Value Measurements - Nonre

Fair Value Measurements - Nonrecurring Fair Value (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017	Dec. 31, 2017
Assets and Liabilities Measured at Fair Value on a Nonrecurring Basis
Loans held-for-sale, measured at fair value	$ 2,845		$ 2,845		$ 2,156
Loans and leases, measured at fair value	6,227		6,227		5,710
Other assets, measured at fair value	21,883		21,883		$ 22,581
Nonrecurring
Assets and Liabilities Measured at Fair Value on a Nonrecurring Basis
Gains (Losses) on loans held-for-sale	0	$ 0	(2)	$ 0
Gains (Losses) on loans and leases	(80)	(105)	(156)	(201)
Gains (Losses) on foreclosed properties	(25)	(26)	(32)	(35)
Gains (Losses) on other assets	(31)	(55)	(35)	(137)
Loss on loans and leases written down to zero	31	43	64	78
Nonrecurring | Government Guaranteed Mortgage Loans upon Foreclosure Receivable
Assets and Liabilities Measured at Fair Value on a Nonrecurring Basis
Foreclosed properties, measured at fair value	573	1,000	573	1,000
Nonrecurring | Level 2
Assets and Liabilities Measured at Fair Value on a Nonrecurring Basis
Loans held-for-sale, measured at fair value	179	64	179	64
Loans and leases, measured at fair value	0	0	0	0
Foreclosed properties, measured at fair value	15	0	15	0
Other assets, measured at fair value	243	309	243	309
Nonrecurring | Level 3
Assets and Liabilities Measured at Fair Value on a Nonrecurring Basis
Loans held-for-sale, measured at fair value	1	0	1	0
Loans and leases, measured at fair value	420	609	420	609
Foreclosed properties, measured at fair value	77	83	77	83
Other assets, measured at fair value	$ 5	$ 0	$ 5	$ 0

Fair Value Measurements - No115

Fair Value Measurements - Nonrecurring Fair Value Inputs (Details) - Nonrecurring - Level 3 - USD ($) $ in Millions	6 Months Ended	12 Months Ended
	Jun. 30, 2018	Dec. 31, 2017
Market Comparables | Minimum
Fair Value Inputs [Abstract]
OREO discount	13.00%	15.00%
Costs to sell	8.00%	5.00%
Market Comparables | Maximum
Fair Value Inputs [Abstract]
OREO discount	59.00%	58.00%
Costs to sell	26.00%	49.00%
Instruments backed by residential real estate assets
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Assets, fair value	$ 420	$ 894
Instruments backed by residential real estate assets | Market Comparables | Weighted Average
Fair Value Inputs [Abstract]
OREO discount	25.00%	23.00%
Costs to sell	9.00%	7.00%

Fair Value Option - Elections (

Fair Value Option - Elections (Details) - USD ($) $ in Millions	Jun. 30, 2018	Dec. 31, 2017
Federal funds sold and securities borrowed or purchased under agreements to resell
Fair Value Carrying Amount
Assets	$ 59,763	$ 52,906
Contractual Principal Outstanding
Assets	59,666	52,907
Fair Value Carrying Amount Less Unpaid Principal
Assets	97	(1)
Loans reported as trading account assets
Fair Value Carrying Amount
Assets	5,816	5,735
Contractual Principal Outstanding
Assets	12,876	11,804
Fair Value Carrying Amount Less Unpaid Principal
Assets	(7,060)	(6,069)
Trading inventory – other
Fair Value Carrying Amount
Assets	13,983	12,027
Consumer and commercial loans
Fair Value Carrying Amount
Assets	6,227	5,710
Contractual Principal Outstanding
Assets	6,270	5,744
Fair Value Carrying Amount Less Unpaid Principal
Assets	(43)	(34)
Loans held-for-sale
Fair Value Carrying Amount
Assets	2,845	2,156
Contractual Principal Outstanding
Assets	4,190	3,717
Fair Value Carrying Amount Less Unpaid Principal
Assets	(1,345)	(1,561)
Other assets
Fair Value Carrying Amount
Assets	3	3
Long-term deposits
Fair Value Carrying Amount
Liabilities	513	449
Contractual Principal Outstanding
Liabilities	483	421
Fair Value Carrying Amount Less Unpaid Principal
Liabilities	30	28
Federal funds purchased and securities loaned or sold under agreements to repurchase
Fair Value Carrying Amount
Liabilities	32,724	36,182
Contractual Principal Outstanding
Liabilities	32,735	36,187
Fair Value Carrying Amount Less Unpaid Principal
Liabilities	(11)	(5)
Short-term borrowings
Fair Value Carrying Amount
Liabilities	3,396	1,494
Contractual Principal Outstanding
Liabilities	3,396	1,494
Fair Value Carrying Amount Less Unpaid Principal
Liabilities	0	0
Unfunded loan commitments
Fair Value Carrying Amount
Liabilities	114	120
Long-term debt
Fair Value Carrying Amount
Liabilities	28,377	31,786
Contractual Principal Outstanding
Liabilities	29,057	31,512
Fair Value Carrying Amount Less Unpaid Principal
Liabilities	(680)	274
Structured liabilities
Fair Value Carrying Amount
Liabilities	28,000	31,400
Contractual Principal Outstanding
Liabilities	$ 28,700	$ 31,100

Fair Value Option - Gains (Loss

Fair Value Option - Gains (Losses) Relating to Assets and Liabilities (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Fair Value, Option, Quantitative Disclosures [Line Items]
Gains (losses) relating to assets and liabilities accounted for under the fair value option	$ 1,877	$ 745	$ 3,457	$ 1,951
Loans reported as trading account assets
Fair Value, Option, Quantitative Disclosures [Line Items]
Gains (losses) relating to assets and liabilities accounted for under the fair value option	(32)	47	71	197
Trading inventory – other
Fair Value, Option, Quantitative Disclosures [Line Items]
Gains (losses) relating to assets and liabilities accounted for under the fair value option	1,361	522	1,956	1,673
Consumer and commercial loans
Fair Value, Option, Quantitative Disclosures [Line Items]
Gains (losses) relating to assets and liabilities accounted for under the fair value option	8	24	93	48
Loans held-for-sale
Fair Value, Option, Quantitative Disclosures [Line Items]
Gains (losses) relating to assets and liabilities accounted for under the fair value option	(1)	75	3	170
Long-term debt
Fair Value, Option, Quantitative Disclosures [Line Items]
Gains (losses) relating to assets and liabilities accounted for under the fair value option	520	73	1,298	(126)
Other
Fair Value, Option, Quantitative Disclosures [Line Items]
Gains (losses) relating to assets and liabilities accounted for under the fair value option	21	4	36	(11)
Trading Account Profits
Fair Value, Option, Quantitative Disclosures [Line Items]
Gains (losses) relating to assets and liabilities accounted for under the fair value option	1,889	684	3,520	1,771
Trading Account Profits | Loans reported as trading account assets
Fair Value, Option, Quantitative Disclosures [Line Items]
Gains (losses) relating to assets and liabilities accounted for under the fair value option	(32)	47	71	197
Trading Account Profits | Trading inventory – other
Fair Value, Option, Quantitative Disclosures [Line Items]
Gains (losses) relating to assets and liabilities accounted for under the fair value option	1,361	522	1,956	1,673
Trading Account Profits | Consumer and commercial loans
Fair Value, Option, Quantitative Disclosures [Line Items]
Gains (losses) relating to assets and liabilities accounted for under the fair value option	19	4	125	9
Trading Account Profits | Loans held-for-sale
Fair Value, Option, Quantitative Disclosures [Line Items]
Gains (losses) relating to assets and liabilities accounted for under the fair value option	0	(1)	1	0
Trading Account Profits | Long-term debt
Fair Value, Option, Quantitative Disclosures [Line Items]
Gains (losses) relating to assets and liabilities accounted for under the fair value option	535	107	1,354	(55)
Trading Account Profits | Other
Fair Value, Option, Quantitative Disclosures [Line Items]
Gains (losses) relating to assets and liabilities accounted for under the fair value option	6	5	13	(53)
Other Income
Fair Value, Option, Quantitative Disclosures [Line Items]
Gains (losses) relating to assets and liabilities accounted for under the fair value option	(12)	61	(63)	180
Other Income | Loans reported as trading account assets
Fair Value, Option, Quantitative Disclosures [Line Items]
Gains (losses) relating to assets and liabilities accounted for under the fair value option	0	0	0	0
Other Income | Trading inventory – other
Fair Value, Option, Quantitative Disclosures [Line Items]
Gains (losses) relating to assets and liabilities accounted for under the fair value option	0	0	0	0
Other Income | Consumer and commercial loans
Fair Value, Option, Quantitative Disclosures [Line Items]
Gains (losses) relating to assets and liabilities accounted for under the fair value option	(11)	20	(32)	39
Other Income | Loans held-for-sale
Fair Value, Option, Quantitative Disclosures [Line Items]
Gains (losses) relating to assets and liabilities accounted for under the fair value option	(1)	76	2	170
Other Income | Long-term debt
Fair Value, Option, Quantitative Disclosures [Line Items]
Gains (losses) relating to assets and liabilities accounted for under the fair value option	(15)	(34)	(56)	(71)
Other Income | Other
Fair Value, Option, Quantitative Disclosures [Line Items]
Gains (losses) relating to assets and liabilities accounted for under the fair value option	$ 15	$ (1)	$ 23	$ 42

Fair Value Option - Gains (L118

Fair Value Option - Gains (Losses) Related to Borrower-specific Credit Risk (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Loans reported as trading account assets
Fair Value, Option, Quantitative Disclosures [Line Items]
Gains (losses) related to borrower-specific credit risk for assets accounted for under the fair value option	$ (2)	$ 7	$ 11	$ 20
Consumer and commercial loans
Fair Value, Option, Quantitative Disclosures [Line Items]
Gains (losses) related to borrower-specific credit risk for assets accounted for under the fair value option	(10)	22	(27)	41
Loans held-for-sale
Fair Value, Option, Quantitative Disclosures [Line Items]
Gains (losses) related to borrower-specific credit risk for assets accounted for under the fair value option	$ 4	$ (1)	$ 1	$ (1)

Fair Value of Financial Inst119

Fair Value of Financial Instruments (Details) - USD ($) $ in Millions	Jun. 30, 2018	Dec. 31, 2017
Financial assets
Loans held-for-sale	$ 2,845	$ 2,156
Financial liabilities
Long-term debt	28,377	31,786
Demand deposits	515,600	519,600
Carrying Value
Financial assets
Loans	901,569	904,399
Loans held-for-sale	6,511	11,430
Financial liabilities
Deposits	1,309,691	1,309,545
Long-term debt	226,595	227,402
Commercial unfunded lending commitments	901	897
Estimate of Fair Value Measurement
Financial assets
Loans	906,793	918,162
Loans held-for-sale	6,567	11,430
Financial liabilities
Deposits	1,309,332	1,309,398
Long-term debt	231,493	236,989
Commercial unfunded lending commitments	4,782	4,028
Estimate of Fair Value Measurement | Level 2
Financial assets
Loans	61,161	68,586
Loans held-for-sale	5,121	10,521
Financial liabilities
Deposits	1,309,332	1,309,398
Long-term debt	230,268	235,126
Commercial unfunded lending commitments	114	120
Estimate of Fair Value Measurement | Level 3
Financial assets
Loans	845,632	849,576
Loans held-for-sale	1,446	909
Financial liabilities
Deposits	0	0
Long-term debt	1,225	1,863
Commercial unfunded lending commitments	$ 4,668	$ 3,908

Business Segment Information -

Business Segment Information - Narrative (Details)	6 Months Ended
	Jun. 30, 2018business_segment
Segment Reporting [Abstract]
Number of operating segments	4

Business Segment Information121

Business Segment Information - Results of Business Segments and All Other (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017	Dec. 31, 2017
Segment Reporting Information [Line Items]
Net interest income (FTE basis)	$ 11,804	$ 11,223	$ 23,562	$ 22,478
Noninterest income	10,959	11,843	22,476	23,033
Total revenue, net of interest expense (FTE basis)	22,763	23,066	46,038	45,511
Provision for credit losses	827	726	1,661	1,561
Noninterest expense	13,284	13,982	27,181	28,075
Income before income taxes (FTE basis)	8,652	8,358	17,196	15,875
Income tax expense (FTE basis)	1,868	3,252	3,494	5,432
Net income	6,784	5,106	13,702	10,443
Year-end total assets	2,291,670	2,254,714	2,291,670	2,254,714	$ 2,281,234
Operating Segments
Segment Reporting Information [Line Items]
Total revenue, net of interest expense (FTE basis)	23,063	22,190	46,671	44,727
Net income	7,031	5,451	14,235	11,142
Year-end total assets	2,101,181	2,053,690	2,101,181	2,053,690
Operating Segments | Consumer Banking
Segment Reporting Information [Line Items]
Net interest income (FTE basis)	6,620	5,961	13,130	11,741
Noninterest income	2,591	2,548	5,113	5,051
Total revenue, net of interest expense (FTE basis)	9,211	8,509	18,243	16,792
Provision for credit losses	944	834	1,879	1,672
Noninterest expense	4,397	4,411	8,877	8,820
Income before income taxes (FTE basis)	3,870	3,264	7,487	6,300
Income tax expense (FTE basis)	987	1,233	1,909	2,377
Net income	2,883	2,031	5,578	3,923
Year-end total assets	768,187	735,176	768,187	735,176
Operating Segments | Global Wealth & Investment Management
Segment Reporting Information [Line Items]
Net interest income (FTE basis)	1,543	1,597	3,137	3,157
Noninterest income	3,166	3,098	6,428	6,130
Total revenue, net of interest expense (FTE basis)	4,709	4,695	9,565	9,287
Provision for credit losses	12	11	50	34
Noninterest expense	3,399	3,392	6,827	6,721
Income before income taxes (FTE basis)	1,298	1,292	2,688	2,532
Income tax expense (FTE basis)	330	488	685	955
Net income	968	804	2,003	1,577
Year-end total assets	270,913	274,746	270,913	274,746
Operating Segments | Global Banking
Segment Reporting Information [Line Items]
Net interest income (FTE basis)	2,711	2,541	5,351	5,143
Noninterest income	2,211	2,498	4,505	4,851
Total revenue, net of interest expense (FTE basis)	4,922	5,039	9,856	9,994
Provision for credit losses	(23)	15	(7)	32
Noninterest expense	2,154	2,154	4,349	4,317
Income before income taxes (FTE basis)	2,791	2,870	5,514	5,645
Income tax expense (FTE basis)	727	1,084	1,434	2,130
Net income	2,064	1,786	4,080	3,515
Year-end total assets	424,971	410,580	424,971	410,580
Operating Segments | Global Markets
Segment Reporting Information [Line Items]
Net interest income (FTE basis)	801	864	1,671	1,913
Noninterest income	3,420	3,083	7,336	6,741
Total revenue, net of interest expense (FTE basis)	4,221	3,947	9,007	8,654
Provision for credit losses	(1)	25	(4)	8
Noninterest expense	2,715	2,650	5,533	5,406
Income before income taxes (FTE basis)	1,507	1,272	3,478	3,240
Income tax expense (FTE basis)	391	442	904	1,113
Net income	1,116	830	2,574	2,127
Year-end total assets	637,110	633,188	637,110	633,188
All Other
Segment Reporting Information [Line Items]
Net interest income (FTE basis)	129	260	273	524
Noninterest income	(429)	616	(906)	260
Total revenue, net of interest expense (FTE basis)	(300)	876	(633)	784
Provision for credit losses	(105)	(159)	(257)	(185)
Noninterest expense	619	1,375	1,595	2,811
Income before income taxes (FTE basis)	(814)	(340)	(1,971)	(1,842)
Income tax expense (FTE basis)	(567)	5	(1,438)	(1,143)
Net income	(247)	(345)	(533)	(699)
Year-end total assets	$ 190,489	$ 201,024	$ 190,489	$ 201,024

Business Segment Information122

Business Segment Information - Business Segment Reconciliations (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Segments’ total revenue, net of interest expense (FTE basis)
Total revenue, net of interest expense (FTE basis)	$ 22,763	$ 23,066	$ 46,038	$ 45,511
Total revenue, net of interest expense	22,609	22,829	45,734	45,077
Net income	6,784	5,106	13,702	10,443
Operating Segments
Segments’ total revenue, net of interest expense (FTE basis)
Total revenue, net of interest expense (FTE basis)	23,063	22,190	46,671	44,727
Net income	7,031	5,451	14,235	11,142
ALM activities
Segments’ total revenue, net of interest expense (FTE basis)
Total revenue, net of interest expense	(271)	104	(155)	59
Net income	(328)	(86)	(382)	(265)
Liquidating businesses, eliminations and other
Segments’ total revenue, net of interest expense (FTE basis)
Total revenue, net of interest expense	(29)	772	(478)	725
Net income	81	(259)	(151)	(434)
FTE basis adjustment
Segments’ total revenue, net of interest expense (FTE basis)
Total revenue, net of interest expense	$ (154)	$ (237)	$ (304)	$ (434)

Business Segment Information123

Business Segment Information - Segments' Total Assets (Details) - USD ($) $ in Millions	Jun. 30, 2018	Dec. 31, 2017	Jun. 30, 2017
Segments’ total assets
Total assets	$ 2,291,670	$ 2,281,234	$ 2,254,714
Operating Segments
Segments’ total assets
Total assets	2,101,181		2,053,690
ALM activities
Segments’ total assets
Total assets	631,777		620,507
Other
Segments’ total assets
Total assets	80,901		98,178
Elimination of segment asset allocations to match liabilities
Segments’ total assets
Total assets	$ (522,189)		$ (517,661)

Business Segment Information124

Business Segment Information - Noninterest Income by Business Segment and All Other (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Segment Reporting Information [Line Items]
Card income	$ 1,542	$ 1,469	$ 2,999	$ 2,918
Service charges	1,954	1,977	3,875	3,895
Investment and brokerage services	3,458	3,460	7,122	6,877
Investment banking income	1,422	1,532	2,775	3,116
Trading account profits	2,315	1,956	5,014	4,287
Other income	268	1,449	691	1,940
Total noninterest income	10,959	11,843	22,476	23,033
Interchange fees
Segment Reporting Information [Line Items]
Card income	1,070	983	2,041	1,941
Other card income
Segment Reporting Information [Line Items]
Card income	472	486	958	977
Deposit-related fees
Segment Reporting Information [Line Items]
Service charges	1,680	1,696	3,326	3,349
Lending-related fees
Segment Reporting Information [Line Items]
Service charges	274	281	549	546
Asset management fees
Segment Reporting Information [Line Items]
Investment and brokerage services	2,513	2,288	5,077	4,488
Brokerage fees
Segment Reporting Information [Line Items]
Investment and brokerage services	945	1,172	2,045	2,389
Underwriting income
Segment Reporting Information [Line Items]
Investment banking income	719	709	1,460	1,488
Syndication fees
Segment Reporting Information [Line Items]
Investment banking income	400	340	716	740
Financial advisory services
Segment Reporting Information [Line Items]
Investment banking income	303	483	599	888
Operating Segments | Consumer Banking
Segment Reporting Information [Line Items]
Card income	1,342	1,248	2,621	2,473
Service charges	1,072	1,061	2,116	2,112
Investment and brokerage services	80	77	162	159
Investment banking income	0	0	0	0
Trading account profits	2	1	4	1
Other income	95	161	210	306
Total noninterest income	2,591	2,548	5,113	5,051
Operating Segments | Consumer Banking | Interchange fees
Segment Reporting Information [Line Items]
Card income	882	800	1,686	1,584
Operating Segments | Consumer Banking | Other card income
Segment Reporting Information [Line Items]
Card income	460	448	935	889
Operating Segments | Consumer Banking | Deposit-related fees
Segment Reporting Information [Line Items]
Service charges	1,072	1,061	2,116	2,112
Operating Segments | Consumer Banking | Lending-related fees
Segment Reporting Information [Line Items]
Service charges	0	0	0	0
Operating Segments | Consumer Banking | Asset management fees
Segment Reporting Information [Line Items]
Investment and brokerage services	37	31	73	64
Operating Segments | Consumer Banking | Brokerage fees
Segment Reporting Information [Line Items]
Investment and brokerage services	43	46	89	95
Operating Segments | Consumer Banking | Underwriting income
Segment Reporting Information [Line Items]
Investment banking income	0	0	0	0
Operating Segments | Consumer Banking | Syndication fees
Segment Reporting Information [Line Items]
Investment banking income	0	0	0	0
Operating Segments | Consumer Banking | Financial advisory services
Segment Reporting Information [Line Items]
Investment banking income	0	0	0	0
Operating Segments | Global Wealth & Investment Management
Segment Reporting Information [Line Items]
Card income	38	34	59	70
Service charges	17	19	36	38
Investment and brokerage services	2,937	2,829	5,977	5,620
Investment banking income	73	96	157	147
Trading account profits	27	33	56	91
Other income	74	87	143	164
Total noninterest income	3,166	3,098	6,428	6,130
Operating Segments | Global Wealth & Investment Management | Interchange fees
Segment Reporting Information [Line Items]
Card income	27	24	38	50
Operating Segments | Global Wealth & Investment Management | Other card income
Segment Reporting Information [Line Items]
Card income	11	10	21	20
Operating Segments | Global Wealth & Investment Management | Deposit-related fees
Segment Reporting Information [Line Items]
Service charges	17	19	36	38
Operating Segments | Global Wealth & Investment Management | Lending-related fees
Segment Reporting Information [Line Items]
Service charges	0	0	0	0
Operating Segments | Global Wealth & Investment Management | Asset management fees
Segment Reporting Information [Line Items]
Investment and brokerage services	2,476	2,257	5,004	4,424
Operating Segments | Global Wealth & Investment Management | Brokerage fees
Segment Reporting Information [Line Items]
Investment and brokerage services	461	572	973	1,196
Operating Segments | Global Wealth & Investment Management | Underwriting income
Segment Reporting Information [Line Items]
Investment banking income	73	95	157	146
Operating Segments | Global Wealth & Investment Management | Syndication fees
Segment Reporting Information [Line Items]
Investment banking income	0	0	0	0
Operating Segments | Global Wealth & Investment Management | Financial advisory services
Segment Reporting Information [Line Items]
Investment banking income	0	1	0	1
Operating Segments | Global Banking
Segment Reporting Information [Line Items]
Card income	138	134	273	259
Service charges	769	809	1,532	1,575
Investment and brokerage services	19	38	44	54
Investment banking income	743	929	1,487	1,855
Trading account profits	63	54	124	87
Other income	479	534	1,045	1,021
Total noninterest income	2,211	2,498	4,505	4,851
Operating Segments | Global Banking | Interchange fees
Segment Reporting Information [Line Items]
Card income	136	131	270	252
Operating Segments | Global Banking | Other card income
Segment Reporting Information [Line Items]
Card income	2	3	3	7
Operating Segments | Global Banking | Deposit-related fees
Segment Reporting Information [Line Items]
Service charges	540	571	1,078	1,116
Operating Segments | Global Banking | Lending-related fees
Segment Reporting Information [Line Items]
Service charges	229	238	454	459
Operating Segments | Global Banking | Asset management fees
Segment Reporting Information [Line Items]
Investment and brokerage services	0	0	0	0
Operating Segments | Global Banking | Brokerage fees
Segment Reporting Information [Line Items]
Investment and brokerage services	19	38	44	54
Operating Segments | Global Banking | Underwriting income
Segment Reporting Information [Line Items]
Investment banking income	99	143	269	299
Operating Segments | Global Banking | Syndication fees
Segment Reporting Information [Line Items]
Investment banking income	375	321	673	700
Operating Segments | Global Banking | Financial advisory services
Segment Reporting Information [Line Items]
Investment banking income	269	465	545	856
Operating Segments | Global Markets
Segment Reporting Information [Line Items]
Card income	25	24	47	46
Service charges	90	83	180	160
Investment and brokerage services	430	521	918	1,052
Investment banking income	652	590	1,261	1,255
Trading account profits	2,184	1,743	4,887	3,920
Other income	39	122	43	308
Total noninterest income	3,420	3,083	7,336	6,741
Operating Segments | Global Markets | Interchange fees
Segment Reporting Information [Line Items]
Card income	25	24	47	46
Operating Segments | Global Markets | Other card income
Segment Reporting Information [Line Items]
Card income	0	0	0	0
Operating Segments | Global Markets | Deposit-related fees
Segment Reporting Information [Line Items]
Service charges	45	40	85	73
Operating Segments | Global Markets | Lending-related fees
Segment Reporting Information [Line Items]
Service charges	45	43	95	87
Operating Segments | Global Markets | Asset management fees
Segment Reporting Information [Line Items]
Investment and brokerage services	0	0	0	0
Operating Segments | Global Markets | Brokerage fees
Segment Reporting Information [Line Items]
Investment and brokerage services	430	521	918	1,052
Operating Segments | Global Markets | Underwriting income
Segment Reporting Information [Line Items]
Investment banking income	592	554	1,163	1,185
Operating Segments | Global Markets | Syndication fees
Segment Reporting Information [Line Items]
Investment banking income	25	19	43	40
Operating Segments | Global Markets | Financial advisory services
Segment Reporting Information [Line Items]
Investment banking income	35	17	55	30
All Other
Segment Reporting Information [Line Items]
Card income	(1)	29	(1)	70
Service charges	6	5	11	10
Investment and brokerage services	(8)	(5)	21	(8)
Investment banking income	(46)	(83)	(130)	(141)
Trading account profits	39	125	(57)	188
Other income	(419)	545	(750)	141
Total noninterest income	(429)	616	(906)	260
All Other | Interchange fees
Segment Reporting Information [Line Items]
Card income	0	4	0	9
All Other | Other card income
Segment Reporting Information [Line Items]
Card income	(1)	25	(1)	61
All Other | Deposit-related fees
Segment Reporting Information [Line Items]
Service charges	6	5	11	10
All Other | Lending-related fees
Segment Reporting Information [Line Items]
Service charges	0	0	0	0
All Other | Asset management fees
Segment Reporting Information [Line Items]
Investment and brokerage services	0	0	0	0
All Other | Brokerage fees
Segment Reporting Information [Line Items]
Investment and brokerage services	(8)	(5)	21	(8)
All Other | Underwriting income
Segment Reporting Information [Line Items]
Investment banking income	(45)	(83)	(129)	(142)
All Other | Syndication fees
Segment Reporting Information [Line Items]
Investment banking income	0	0	0	0
All Other | Financial advisory services
Segment Reporting Information [Line Items]
Investment banking income	$ (1)	$ 0	$ (1)	$ 1