U.S. Bancorp (USB) 10-K 22 Feb 19 2018 FY Annual report Financial data

Document and Entity Information

Document and Entity Information - USD ($) $ in Billions	12 Months Ended
	Dec. 31, 2018	Jan. 31, 2019	Jun. 30, 2018
Document And Entity Information [Abstract]
Document Type	10-K
Amendment Flag	false
Document Period End Date	Dec. 31, 2018
Document Fiscal Year Focus	2,018
Document Fiscal Period Focus	FY
Trading Symbol	USB
Entity Registrant Name	US BANCORP \DE\
Entity Central Index Key	36,104
Current Fiscal Year End Date	--12-31
Entity Well-known Seasoned Issuer	Yes
Entity Current Reporting Status	Yes
Entity Voluntary Filers	No
Entity Filer Category	Large Accelerated Filer
Entity Shell Company	false
Entity Smaller Reporting Company	false
Entity Emerging Growth Company	false
Entity Common Stock, Shares Outstanding		1,600,622,211
Entity Public Float			$ 81.8

Consolidated Balance Sheet

Consolidated Balance Sheet - USD ($) $ in Millions		Dec. 31, 2018	Dec. 31, 2017
Assets
Cash and due from banks		$ 21,453	$ 19,505
Investment securities
Held-to-maturity (fair value $44,964 and $43,723, respectively)		46,050	44,362
Available-for-sale ($2,057 and $689 pledged as collateral, respectively)	[1]	66,115	68,137
Loans held for sale (including $2,035 and $3,534 of mortgage loans carried at fair value, respectively)		2,056	3,554
Loans
Commercial		102,444	97,561
Commercial real estate		39,539	40,463
Residential mortgages		65,034	59,783
Credit card		23,363	22,180
Other retail		56,430	57,324
Covered loans			3,121
Total loans		286,810	280,432
Less allowance for loan losses		(3,973)	(3,925)
Net loans		282,837	276,507
Premises and equipment		2,457	2,432
Goodwill		9,369	9,434
Other intangible assets		3,392	3,228
Other assets (including $843 and $238 of trading securities at fair value pledged as collateral, respectively)	[1]	33,645	34,881
Total assets		467,374	462,040
Deposits
Noninterest-bearing		81,811	87,557
Interest-bearing	[2]	263,664	259,658
Total deposits		345,475	347,215
Short-term borrowings		14,139	16,651
Long-term debt		41,340	32,259
Other liabilities		14,763	16,249
Total liabilities		415,717	412,374
Shareholders' equity
Preferred stock		5,984	5,419
Common stock, par value $0.01 a share - authorized: 4,000,000,000 shares; issued: 2018 and 2017 - 2,125,725,742 shares		21	21
Capital surplus		8,469	8,464
Retained earnings		59,065	54,142
Less cost of common stock in treasury: 2018 - 517,391,021 shares; 2017 - 470,080,231 shares		(20,188)	(17,602)
Accumulated other comprehensive income (loss)		(2,322)	(1,404)
Total U.S. Bancorp shareholders' equity		51,029	49,040
Noncontrolling interests		628	626
Total equity		51,657	49,666
Total liabilities and equity		$ 467,374	$ 462,040
[1]	Includes only collateral pledged by the Company where counterparties have the right to sell or pledge the collateral.
[2]	lncludes time deposits greater than $250,000 balances of $15.3 billion and $6.8 billion at December 31, 2018 and 2017, respectively.

Consolidated Balance Sheet (Par

Consolidated Balance Sheet (Parenthetical) - USD ($) $ in Millions	Dec. 31, 2018	Dec. 31, 2017
Held-to-maturity securities, Fair Value	$ 44,964	$ 43,723
Securities, pledged as collateral	2,100	689
Mortgage loans, carried at fair value	$ 2,035	$ 3,534
Common stock, par value	$ 0.01	$ 0.01
Common stock, share-authorized (actual number of shares)	4,000,000,000	4,000,000,000
Common stock, shares issued (actual number of shares)	2,125,725,742	2,125,725,742
Treasury stock, shares (actual number of shares)	517,391,021	470,080,231
Time deposits greater than 250,000	$ 15,300	$ 6,800
Available-for-Sale Securities [Member]
Securities, pledged as collateral	2,057	689
Trading Assets, Excluding Debt and Equity Securities [Member]
Securities, pledged as collateral	$ 843	$ 238

Consolidated Statement of Incom

Consolidated Statement of Income - USD ($) shares in Millions, $ in Millions	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Interest Income
Loans	$ 13,120	$ 11,788	$ 10,777
Loans held for sale	165	144	154
Investment securities	2,616	2,232	2,078
Other interest income	272	182	125
Total interest income	16,173	14,346	13,134
Interest Expense
Deposits	1,869	1,041	622
Short-term borrowings	378	141	92
Long-term debt	1,007	784	754
Total interest expense	3,254	1,966	1,468
Net interest income	12,919	12,380	11,666
Provision for credit losses	1,379	1,390	1,324
Net interest income after provision for credit losses	11,540	10,990	10,342
Noninterest Income
Credit and debit card revenue	1,401	1,289	1,206
Corporate payment products revenue	644	575	541
Merchant processing services	1,531	1,486	1,498
ATM processing services	308	303	277
Trust and investment management fees	1,619	1,522	1,427
Deposit service charges	762	732	706
Treasury management fees	594	618	583
Commercial products revenue	895	954	971
Mortgage banking revenue	720	834	979
Investment products fees	188	173	169
Securities gains (losses), net
Realized gains (losses), net	30	57	27
Total other-than-temporary impairment			(6)
Portion of other-than-temporary impairment recognized in other comprehensive income (loss)			1
Total securities gains (losses), net	30	57	22
Other	910	774	911
Total noninterest income	9,602	9,317	9,290
Noninterest Expense
Compensation	6,162	5,746	5,212
Employee benefits	1,231	1,134	1,008
Net occupancy and equipment	1,063	1,019	988
Professional services	407	419	502
Marketing and business development	429	542	435
Technology and communications	978	903	877
Postage, printing and supplies	324	323	311
Other intangibles	161	175	179
Other	1,709	2,529	2,015
Total noninterest expense	12,464	12,790	11,527
Income before income taxes	8,678	7,517	8,105
Applicable income taxes	1,554	1,264	2,161
Net income	7,124	6,253	5,944
Net (income) loss attributable to noncontrolling interests	(28)	(35)	(56)
Net income attributable to U.S. Bancorp	7,096	6,218	5,888
Net income applicable to U.S. Bancorp common shareholders	$ 6,784	$ 5,913	$ 5,589
Earnings per common share	$ 4.15	$ 3.53	$ 3.25
Diluted earnings per common share	$ 4.14	$ 3.51	$ 3.24
Average common shares outstanding	1,634	1,677	1,718
Average diluted common shares outstanding	1,638	1,683	1,724

Consolidated Statement of Compr

Consolidated Statement of Comprehensive Income - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Statement of Comprehensive Income [Abstract]
Net income	$ 7,124	$ 6,253	$ 5,944
Other Comprehensive Income (Loss)
Changes in unrealized gains and losses on investment securities available-for-sale	(656)	178	(858)
Other-than-temporary impairment not recognized in earnings on investment securities available-for-sale			(1)
Changes in unrealized gains and losses on derivative hedges	39	(5)	74
Foreign currency translation	3	(2)	(28)
Changes in unrealized gains and losses on retirement plans	(302)	(41)	(255)
Reclassification to earnings of realized gains and losses	93	77	247
Income taxes related to other comprehensive income (loss)	205	(76)	305
Total other comprehensive income (loss)	(618)	131	(516)
Comprehensive income	6,506	6,384	5,428
Comprehensive (income) loss attributable to noncontrolling interests	(28)	(35)	(56)
Comprehensive income attributable to U.S. Bancorp	$ 6,478	$ 6,349	$ 5,372

Consolidated Statement of Share

Consolidated Statement of Shareholders' Equity - USD ($) shares in Millions, $ in Millions		Total	Common Stock [Member]	Preferred Stock [Member]	Capital Surplus [Member]	Retained Earnings [Member]	Treasury Stock [Member]	Accumulated Other Comprehensive Income (Loss) [Member]	Total U.S. Bancorp Shareholders' Equity [Member]	Noncontrolling Interests [Member]
Beginning Balance at Dec. 31, 2015		$ 46,817	$ 21	$ 5,501	$ 8,376	$ 46,377	$ (13,125)	$ (1,019)	$ 46,131	$ 686
Shares, Beginning Balance at Dec. 31, 2015			1,745
Net income (loss)		5,944				5,888			5,888	56
Other comprehensive income (loss)		(516)						(516)	(516)
Preferred stock dividends	[1]	(281)				(281)			(281)
Common stock dividends		(1,842)				(1,842)			(1,842)
Issuance of common and treasury stock		374			(71)		445		374
Issuance of common and treasury stock, shares			13
Purchase of treasury stock		$ (2,600)					(2,600)		(2,600)
Purchase of treasury stock, shares		(61)	(61)
Distributions to noncontrolling interests		$ (56)								(56)
Purchase of noncontrolling interests		(40)			1	9			10	(50)
Net other changes in noncontrolling interests		(1)								(1)
Stock option and restricted stock grants		134			134				134
Ending Balance at Dec. 31, 2016		47,933	$ 21	5,501	8,440	50,151	(15,280)	(1,535)	47,298	635
Shares, Ending Balance at Dec. 31, 2016			1,697
Net income (loss)		6,253				6,218			6,218	35
Other comprehensive income (loss)		131						131	131
Preferred stock dividends	[2]	(267)				(267)			(267)
Common stock dividends		(1,950)				(1,950)			(1,950)
Issuance of preferred stock		993		993					993
Redemption of preferred stock		(1,085)		(1,075)		(10)			(1,085)
Issuance of common and treasury stock		162			(138)		300		162
Issuance of common and treasury stock, shares			8
Purchase of treasury stock		$ (2,622)					(2,622)		(2,622)
Purchase of treasury stock, shares		(49)	(49)
Distributions to noncontrolling interests		$ (47)								(47)
Net other changes in noncontrolling interests		3								3
Stock option and restricted stock grants		162			162				162
Ending Balance at Dec. 31, 2017		$ 49,666	$ 21	5,419	8,464	54,142	(17,602)	(1,404)	49,040	626
Shares, Ending Balance at Dec. 31, 2017		1,700	1,656
Changes in accounting principles at Dec. 31, 2017	[3]	$ (1)				299		(300)	(1)
Net income (loss)		7,124				7,096			7,096	28
Other comprehensive income (loss)		(618)						(618)	(618)
Preferred stock dividends	[4]	(282)				(282)			(282)
Common stock dividends		(2,190)				(2,190)			(2,190)
Issuance of preferred stock		565		565					565
Issuance of common and treasury stock		91			(167)		258		91
Issuance of common and treasury stock, shares			6
Purchase of treasury stock		$ (2,844)					(2,844)		(2,844)
Purchase of treasury stock, shares		(54)	(54)
Distributions to noncontrolling interests		$ (31)								(31)
Net other changes in noncontrolling interests		5								5
Stock option and restricted stock grants		172			172				172
Ending Balance at Dec. 31, 2018		$ 51,657	$ 21	$ 5,984	$ 8,469	$ 59,065	$ (20,188)	$ (2,322)	$ 51,029	$ 628
Shares, Ending Balance at Dec. 31, 2018		1,600	1,608
[1]	Reflects dividends declared per share on the Company's Series A, Series B, Series F, Series G, Series H and Series I Non-Cumulative Perpetual Preferred Stock of $3,558.382, $889.58, $1,625.00, $1,500.00, $1,287.52 and $1,281.25, respectively.
[2]	Reflects dividends declared per share on the Company's Series A, Series B, Series F, Series G, Series H, Series I and Series J Non-Cumulative Perpetual Preferred Stock of $3,548.61, $887.15, $1,625.00, $375.00, $1,287.52, $1,281.25 and $890.69, respectively.
[3]	Reflects the adoption of new accounting guidance on January 1, 2018 to reclassify the impact of the reduced federal statutory rate for corporations included in 2017 tax reform legislation from accumulated other comprehensive income to retained earnings.
[4]	Reflects dividends declared per share on the Company's Series A, Series B, Series F, Series H, Series I, Series J and Series K Non-Cumulative Perpetual Preferred Stock of $3,548.61, $887.15, $1,625.00, $1,287.52, $1,281.25, $1,325.00 and $576.74, respectively.

Consolidated Statement of Sha_2

Consolidated Statement of Shareholders' Equity (Parenthetical) - $ / shares	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Common stock dividends, share	$ 1.34	$ 1.16	$ 1.07
Series A [Member]
Preferred stock dividends declared per share	3,548.61	3,548.61	3,558.382
Series B [Member]
Preferred stock dividends declared per share	887.15	887.15	889.58
Series F [Member]
Preferred stock dividends declared per share	1,625	1,625	1,625
Series G [Member]
Preferred stock dividends declared per share		375	1,500
Series H [Member]
Preferred stock dividends declared per share	1,287.52	1,287.52	1,287.52
Series I [Member]
Preferred stock dividends declared per share	1,281.25	1,281.25	$ 1,281.25
Series J [Member]
Preferred stock dividends declared per share	1,325	$ 890.69
Series K Preferred Stock [Member]
Preferred stock dividends declared per share	$ 576.74

Consolidated Statement of Cash

Consolidated Statement of Cash Flows - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Operating Activities
Net income attributable to U.S. Bancorp	$ 7,096	$ 6,218	$ 5,888
Adjustments to reconcile net income to net cash provided by operating activities
Provision for credit losses	1,379	1,390	1,324
Depreciation and amortization of premises and equipment	306	293	291
Amortization of intangibles	161	175	179
(Gain) loss on sale of loans held for sale	(394)	(772)	(954)
(Gain) loss on sale of securities and other assets	(510)	(502)	(617)
Loans originated for sale in the secondary market, net of repayments	(29,214)	(35,743)	(42,867)
Proceeds from sales of loans held for sale	30,730	37,462	41,605
Other, net	1,010	(2,049)	487
Net cash provided by operating activities	10,564	6,472	5,336
Investing Activities
Proceeds from sales of available-for-sale investment securities	1,400	3,084	9,877
Proceeds from maturities of held-to-maturity investment securities	6,619	8,306	9,733
Proceeds from maturities of available-for-sale investment securities	11,411	13,042	14,625
Purchases of held-to-maturity investment securities	(9,793)	(9,712)	(9,171)
Purchases of available-for-sale investment securities	(10,077)	(17,860)	(29,684)
Net increase in loans outstanding	(9,234)	(8,054)	(13,383)
Proceeds from sales of loans	4,862	2,458	2,604
Purchases of loans	(3,694)	(3,040)	(2,881)
Other, net	(471)	(350)	322
Net cash used in investing activities	(8,977)	(12,126)	(17,958)
Financing Activities
Net (decrease) increase in deposits	(1,740)	12,625	34,192
Net (decrease) increase in short-term borrowings	(2,512)	2,688	(13,914)
Proceeds from issuance of long-term debt	12,078	9,434	10,715
Principal payments or redemption of long-term debt	(2,928)	(10,517)	(9,495)
Proceeds from issuance of preferred stock	565	993
Proceeds from issuance of common stock	86	159	355
Repurchase of preferred stock		(1,085)
Repurchase of common stock	(2,822)	(2,631)	(2,556)
Cash dividends paid on preferred stock	(274)	(284)	(267)
Cash dividends paid on common stock	(2,092)	(1,928)	(1,810)
Purchase of noncontrolling interests			(40)
Net cash provided by financing activities	361	9,454	17,180
Change in cash and due from banks	1,948	3,800	4,558
Cash and due from banks at beginning of period	19,505	15,705	11,147
Cash and due from banks at end of period	21,453	19,505	15,705
Supplemental Cash Flow Disclosures
Cash paid for income taxes	365	555	595
Cash paid for interest	3,056	2,086	1,591
Net noncash transfers to foreclosed property	$ 115	$ 163	$ 156

Significant Accounting Policies

Significant Accounting Policies	12 Months Ended
	Dec. 31, 2018
Accounting Policies [Abstract]
Significant Accounting Policies	NOTE 1 Significant Accounting Policies U.S. Bancorp is a multi-state financial services holding company headquartered in Minneapolis, Minnesota. U.S. Bancorp and its subsidiaries (the “Company”) provide a full range of financial services, including lending and depository services through banking offices principally in the Midwest and West regions of the United States. The Company also engages in credit card, merchant, and ATM processing, mortgage banking, cash management, capital markets, insurance, trust and investment management, brokerage, and leasing activities, principally in domestic markets. Basis of Presentation Uses of Estimates Business Segments Within the Company, financial performance is measured by major lines of business based on the products and services provided to customers through its distribution channels. The Company has five reportable operating segments: Corporate and Commercial Banking non-profit Consumer and Business Banking on-line Wealth Management and Investment Services Payment Services Treasury and Corporate Support tax-advantaged Segment Results Securities Realized gains or losses on securities are determined on a trade date basis based on the specific amortized cost of the investments sold. Trading Securities Available-for-sale Available-for-sale Held-to-maturity Securities Purchased Under Agreements to Resell and Securities Sold Under Agreements to Repurchase Equity Investments Equity investments in entities where the Company has a significant influence (generally between 20 percent and 50 percent ownership), but does not control the entity, are accounted for using the equity method. Investments in limited partnerships and similarly structured limited liability companies where the Company’s ownership interest is greater than 5 percent are accounted for using the equity method. Equity investments not using the equity method are accounted for at fair value with changes in fair value and realized gains or losses reported in noninterest income, unless fair value is not readily determinable, in which case the investment is carried at cost subject to adjustments for any observable market transactions on the same or similar instruments of the investee. Most of the Company’s equity investments do not have readily determinable fair values. All equity investments are evaluated for impairment at least annually and more frequently if certain criteria are met. Loans The Company offers a broad array of lending products and categorizes its loan portfolio into two segments, which is the level at which it develops and documents a systematic methodology to determine the allowance for credit losses. The Company’s two loan portfolio segments are commercial lending and consumer lending. Previously, the Company categorized loans covered under loss sharing or similar credit protection agreements with the Federal Deposit Insurance Corporation (“FDIC”), along with the related indemnification asset, in a separate covered loans segment. As the majority of these loans were sold and the loss share coverage expired, any remaining balances were reclassified to be included in the loan segment they would have otherwise been included in had the loss share coverage not been in place. The Company further disaggregates its loan portfolio segments into various classes based on their underlying risk characteristics. The two classes within the commercial lending segment are commercial loans and commercial real estate loans. The three classes within the consumer lending segment are residential mortgages, credit card loans and other retail loans. The Company’s accounting methods for loans differ depending on whether the loans are originated or purchased, and for purchased loans, whether the loans were acquired at a discount related to evidence of credit deterioration since date of origination. Originated Loans Held for Investment Purchased Loans (non-impaired non-impaired In determining the acquisition date fair value of purchased impaired loans, and in subsequent accounting, the Company generally aggregates purchased consumer loans and certain smaller balance commercial loans into pools of loans with common risk characteristics, while accounting for larger balance commercial loans individually. Expected cash flows at the purchase date in excess of the fair value of loans are recorded as interest income over the life of the loans if the timing and amount of the future cash flows is reasonably estimable. Subsequent to the purchase date, increases in cash flows over those expected at the purchase date are recognized as interest income prospectively. The present value of any decreases in expected cash flows, other than from decreases in variable interest rates, after the purchase date is recognized by recording an allowance for credit losses. Revolving loans, including lines of credit and credit cards loans, and leases are excluded from purchased impaired loans accounting. For purchased loans acquired after January 1, 2009 that are not deemed impaired at acquisition, credit discounts representing the principal losses expected over the life of the loan are a component of the initial fair value. Subsequent to the purchase date, the methods utilized to estimate the required allowance for credit losses for these loans is similar to originated loans; however, the Company records a provision for credit losses only when the required allowance exceeds any remaining credit discounts. The remaining differences between the purchase price and the unpaid principal balance at the date of acquisition are recorded in interest income over the life of the loans. Commitments to Extend Credit Allowance for Credit Losses The allowance recorded for loans in the commercial lending segment is based on reviews of individual credit relationships and considers the migration analysis of commercial lending segment loans and actual loss experience. For each loan type, this historical loss experience is adjusted as necessary to consider any relevant changes in portfolio composition, lending policies, underwriting standards, risk management practices or economic conditions. The results of the analysis are evaluated quarterly to confirm the selected loss experience is appropriate for each commercial loan type. The allowance recorded for impaired loans greater than $5 million in the commercial lending segment is based on an individual loan analysis utilizing expected cash flows discounted using the original effective interest rate, the observable market price of the loan, or the fair value of the collateral, less selling costs, for collateral-dependent loans, rather than the migration analysis. The allowance recorded for all other commercial lending segment loans is determined on a homogenous pool basis and includes consideration of product mix, risk characteristics of the portfolio, delinquency status, bankruptcy experience, portfolio growth and historical losses, adjusted for current trends. The Company also considers the impacts of any loan modifications made to commercial lending segment loans and any subsequent payment defaults to its expectations of cash flows, principal balance, and current expectations about the borrower’s ability to pay in determining the allowance for credit losses. The allowance recorded for Troubled Debt Restructuring (“TDR”) loans and purchased impaired loans in the consumer lending segment is determined on a homogenous pool basis utilizing expected cash flows discounted using the original effective interest rate of the pool, or the prior quarter effective rate, respectively. The allowance for collateral-dependent loans in the consumer lending segment is determined based on the fair value of the collateral less costs to sell. The allowance recorded for all other consumer lending segment loans is determined on a homogenous pool basis and includes consideration of product mix, risk characteristics of the portfolio, bankruptcy experience, delinquency status, refreshed loan-to-value In addition, subsequent payment defaults on loan modifications considered TDRs are considered in the underlying factors used in the determination of the appropriateness of the allowance for credit losses. For each loan segment, the Company estimates future loan charge-offs through a variety of analysis, trends and underlying assumptions. With respect to the commercial lending segment, TDRs may be collectively evaluated for impairment where observed performance history, including defaults, is a primary driver of the loss allocation. For commercial TDRs individually evaluated for impairment, attributes of the borrower are the primary factors in determining the allowance for credit losses. However, historical loss experience is also incorporated into the allowance methodology applied to this category of loans. With respect to the consumer lending segment, performance of the portfolio, including defaults on TDRs, is considered when estimating future cash flows. The Company’s methodology for determining the appropriate allowance for credit losses for each loan segment also considers the imprecision inherent in the methodologies used. As a result, in addition to the amounts determined under the methodologies described above, management also considers the potential impact of other qualitative factors which include, but are not limited to, economic factors; geographic and other concentration risks; delinquency and nonaccrual trends; current business conditions; changes in lending policy, underwriting standards and other relevant business practices; results of internal review; and the regulatory environment. The consideration of these items results in adjustments to allowance amounts included in the Company’s allowance for credit losses for each of the above loan segments. The Company also assesses the credit risk associated with off-balance off-balance Credit Quality For all loan classes, loans are considered past due based on the number of days delinquent except for monthly amortizing loans which are classified delinquent based upon the number of contractually required payments not made (for example, two missed payments is considered 30 days delinquent). When a loan is placed on nonaccrual status, unpaid accrued interest is reversed, reducing interest income in the current period. Commercial lending segment loans are generally placed on nonaccrual status when the collection of principal and interest has become 90 days past due or is otherwise considered doubtful. Commercial lending segment loans are generally fully or partially charged down to the fair value of the collateral securing the loan, less costs to sell, when the loan is placed on nonaccrual. Consumer lending segment loans are generally charged-off 1-4 charge-off 1-4 family charged-off. charged-off 1-4 charged-off charged-off charge-off. For all loan classes, interest payments received on nonaccrual loans are generally recorded as a reduction to a loan’s carrying amount while a loan is on nonaccrual and are recognized as interest income upon payoff of the loan. However, interest income may be recognized for interest payments if the remaining carrying amount of the loan is believed to be collectible. In certain circumstances, loans in any class may be restored to accrual status, such as when a loan has demonstrated sustained repayment performance or no amounts are past due and prospects for future payment are no longer in doubt; or when the loan becomes well secured and is in the process of collection. Loans where there has been a partial charge-off charged-off) The Company classifies its loan portfolios using internal credit quality ratings on a quarterly basis. These ratings include pass, special mention and classified, and are an important part of the Company’s overall credit risk management process and evaluation of the allowance for credit losses. Loans with a pass rating represent those loans not classified on the Company’s rating scale for problem credits, as minimal credit risk has been identified. Special mention loans are those loans that have a potential weakness deserving management’s close attention. Classified loans are those loans where a well-defined weakness has been identified that may put full collection of contractual cash flows at risk. It is possible that others, given the same information, may reach different reasonable conclusions regarding the credit quality rating classification of specific loans. Troubled Debt Restructurings The Company has implemented certain restructuring programs that may result in TDRs. However, many of the Company’s TDRs are also determined on a case-by-case For the commercial lending segment, modifications generally result in the Company working with borrowers on a case-by-case Modifications for the consumer lending segment are generally part of programs the Company has initiated. The Company modifies residential mortgage loans under Federal Housing Administration, United States Department of Veterans Affairs, or its own internal programs. Under these programs, the Company offers qualifying homeowners the opportunity to permanently modify their loan and achieve more affordable monthly payments by providing loan concessions. These concessions may include adjustments to interest rates, conversion of adjustable rates to fixed rates, extension of maturity dates or deferrals of payments, capitalization of accrued interest and/or outstanding advances, or in limited situations, partial forgiveness of loan principal. In most instances, participation in residential mortgage loan restructuring programs requires the customer to complete a short-term trial period. A permanent loan modification is contingent on the customer successfully completing the trial period arrangement, and the loan documents are not modified until that time. The Company reports loans in a trial period arrangement as TDRs and continues to report them as TDRs after the trial period. Credit card and other retail loan TDRs are generally part of distinct restructuring programs providing customers experiencing financial difficulty with modifications whereby balances may be amortized up to 60 months, and generally include waiver of fees and reduced interest rates. In addition, the Company considers secured loans to consumer borrowers that have debt discharged through bankruptcy where the borrower has not reaffirmed the debt to be TDRs. Acquired loans restructured after acquisition are not considered TDRs for accounting and disclosure purposes if the loans evidenced credit deterioration as of the acquisition date and are accounted for in pools. Impaired Loans Factors used by the Company in determining whether all principal and interest payments due on commercial and commercial real estate loans will be collected and, therefore, whether those loans are impaired include, but are not limited to, the financial condition of the borrower, collateral and/or guarantees on the loan, and the borrower’s estimated future ability to pay based on industry, geographic location and certain financial ratios. The evaluation of impairment on residential mortgages, credit card loans and other retail loans is primarily driven by delinquency status of individual loans or whether a loan has been modified, and considers any government guarantee where applicable. Leases The investment in leveraged leases is the sum of all lease payments, less nonrecourse debt payments, plus estimated residual values, less unearned income. Income from leveraged leases is recognized over the term of the leases based on the unrecovered equity investment. Residual values on leased assets are reviewed regularly for other-than-temporary impairment. Residual valuations for retail automobile leases are based on independent assessments of expected used car sale prices at the end-of-term. re-marketing Other Real Estate Loans Held For Sale Loans held for sale (“LHFS”) represent mortgage loans intended to be sold in the secondary market and other loans that management has an active plan to sell. LHFS are carried at the lower-of-cost-or-fair Where an election is made to carry the LHFS at fair value, any change in fair value is recognized in noninterest income. Where an election is made to carry LHFS at lower-of-cost-or-fair Derivative Financial Instruments In the ordinary course of business, the Company enters into derivative transactions to manage various risks and to accommodate the business requirements of its customers. Derivative instruments are reported in other assets or other liabilities at fair value. Changes in a derivative’s fair value are recognized currently in earnings unless specific hedge accounting criteria are met. All derivative instruments that qualify and are designated for hedge accounting are recorded at fair value and classified as either a hedge of the fair value of a recognized asset or liability (“fair value hedge”); a hedge of a forecasted transaction or the variability of cash flows to be received or paid related to a recognized asset or liability (“cash flow hedge”); or a hedge of the volatility of a net investment in foreign operations driven by changes in foreign currency exchange rates (“net investment hedge”). Changes in the fair value of a derivative that is highly effective and designated as a fair value hedge, and the offsetting changes in the fair value of the hedged item, are recorded in earnings. Changes in the fair value of a derivative that is highly effective and designated as a cash flow hedge are recorded in other comprehensive income (loss) until cash flows of the hedged item are realized. Changes in the fair value of net investment hedges that are highly effective are recorded in other comprehensive income (loss). The Company performs an assessment, at inception and, at a minimum, quarterly thereafter, to determine the effectiveness of the derivative in offsetting changes in the value or cash flows of the hedged item(s). If a derivative designated as a cash flow hedge is terminated or ceases to be highly effective, the gain or loss in other comprehensive income (loss) is amortized to earnings over the period the forecasted hedged transactions impact earnings. If a hedged forecasted transaction is no longer probable, hedge accounting is ceased and any gain or loss included in other comprehensive income (loss) is reported in earnings immediately, unless the forecasted transaction is at least reasonably possible of occurring, whereby the amounts remain within other comprehensive income (loss). Revenue Recognition In the ordinary course of business, the Company recognizes income derived from various revenue generating activities. Certain revenues are generated from contracts where they are recognized when, or as services or products are transferred to customers for amounts the Company expects to be entitled. Revenue generating activities related to financial assets and liabilities are also recognized; including mortgage servicing fees, loan commitment fees, foreign currency remeasurements, and gains and losses on securities, equity investments and unconsolidated subsidiaries. Certain specific policies include the following: Credit and Debit Card Revenue Corporate Payment Products Revenue Merchant Processing Services point-of-sale ATM Processing Services Trust and Investment Management Fees Deposit Service Charges Treasury Management Fees Commercial Products Revenue non-yield Mortgage Banking Revenue Investment Products Fees Other Noninterest Income Other Significant Policies Goodwill and Other Intangible Assets Income Taxes Mortgage Servicing Rights Pensions year-end Premises and Equipment Capitalized leases, less accumulated amortization, are included in premises and equipment. Capitalized lease obligations are included in long-term debt. Capitalized leases are amortized on a straight-line basis over the lease term and the amortization is included in depreciation expense. Stock-Based Compensation Per Share Calculations two-class two-class

Accounting Changes

Accounting Changes	12 Months Ended
	Dec. 31, 2018
Accounting Changes and Error Corrections [Abstract]
Accounting Changes	NOTE 2 Accounting Changes Revenue Recognition Financial Instruments—Hedge Accounting held-to-maturity available-for-sale Income Taxes Accounting for Leases Financial Instruments—Credit Losses

Restrictions on Cash and Due fr

Restrictions on Cash and Due from Banks	12 Months Ended
	Dec. 31, 2018
Text Block [Abstract]
Restrictions on Cash and Due from Banks	NOTE 3 Restrictions on Cash and Due from Banks Banking regulators require bank subsidiaries to maintain minimum average reserve balances, either in the form of vault cash or reserve balances held with central banks or other financial institutions. The amount of required reserve balances were approximately $3.1 billion at December 31, 2018 and 2017, and primarily represent those required to be held at the Federal Reserve Bank. In addition to vault cash, the Company held balances at the Federal Reserve Bank and other financial institutions of $7.5 billion and $2.4 billion at December 31, 2018 and 2017, respectively, to meet these requirements. These balances are included in cash and due from banks on the Consolidated Balance Sheet.

Investment Securities

Investment Securities	12 Months Ended
	Dec. 31, 2018
Investments, Debt and Equity Securities [Abstract]
Investment Securities	NOTE 4 Investment Securities The Company’s held-to-maturity available-for-sale The amortized cost, other-than-temporary impairment recorded in other comprehensive income (loss), gross unrealized holding gains and losses, and fair value of held-to-maturity available-for-sale 2018 2017 Unrealized Losses Unrealized Losses (Dollars in Millions) Amortized Unrealized Other-than- (a) Other (b) Fair Value Amortized Unrealized Other-than- (a) Other (b) Fair Value Held-to-maturity U.S. Treasury and agencies $ 5,102 $ 2 $ – $ (143 ) $ 4,961 $ 5,181 $ 5 $ – $ (120 ) $ 5,066 Residential agency mortgage-backed securities 40,920 45 – (994 ) 39,971 39,150 48 – (579 ) 38,619 Asset-backed securities Collateralized debt obligations/Collateralized loan obligations – 1 – – 1 – 4 – – 4 Other 5 2 – – 7 6 2 – – 8 Obligations of state and political subdivisions 6 1 – – 7 6 1 – – 7 Obligations of foreign governments 9 – – – 9 7 – – – 7 Other 8 – – – 8 12 – – – 12 Total held-to-maturity $ 46,050 $ 51 $ – $ (1,137 ) $ 44,964 $ 44,362 $ 60 $ – $ (699 ) $ 43,723 Available-for-sale U.S. Treasury and agencies $ 19,604 $ 11 $ – $ (358 ) $ 19,257 $ 23,586 $ 3 $ – $ (288 ) $ 23,301 Mortgage-backed securities Residential agency 40,542 120 – (910 ) 39,752 38,450 152 – (571 ) 38,031 Commercial agency 2 – – – 2 6 – – – 6 Other asset-backed securities 397 6 – – 403 413 6 – – 419 Obligations of state and political subdivisions 6,836 37 – (172 ) 6,701 6,240 147 – (29 ) 6,358 Other – – – – – 22 – – – 22 Total available-for-sale $ 67,381 $ 174 $ – $ (1,440 ) $ 66,115 $ 68,717 $ 308 $ – $ (888 ) $ 68,137 (a) Represents impairment not related to credit for those investment securities that have been determined to be other-than-temporarily impaired. (b) Represents unrealized losses on investment securities that have not been determined to be other-than-temporarily impaired. The weighted-average maturity of the available-for-sale held-to-maturity For amortized cost, fair value and yield by maturity date of held-to-maturity available-for-sale outstanding at December 31, 2018, refer to Table 13 included in Management’s Discussion and Analysis, which is incorporated by reference into these Notes to Consolidated Financial Statements. Investment securities with a fair value of $10.9 billion at December 31, 2018, and $12.8 billion at December 31, 2017, were pledged to secure public, private and trust deposits, repurchase agreements and for other purposes required by contractual obligation or law. Included in these amounts were securities where the Company and certain counterparties have agreements granting the counterparties the right to sell or pledge the securities. Investment securities securing these types of arrangements had a fair value of $2.1 billion at December 31, 2018, and $689 million at December 31, 2017. The following table provides information about the amount of interest income from taxable and non-taxable Year Ended December 31 (Dollars in Millions) 2018 2017 2016 Taxable $ 2,396 $ 2,043 $ 1,878 Non-taxable 220 189 200 Total interest income from investment securities $ 2,616 $ 2,232 $ 2,078 The following table provides information about the amount of gross gains and losses realized through the sales of available-for-sale Year Ended December 31 (Dollars in Millions) 2018 2017 2016 Realized gains $ 30 $ 75 $ 93 Realized losses – (18 ) (66 ) Net realized gains (losses) $ 30 $ 57 $ 27 Income tax (benefit) on net realized gains (losses) $ 7 $ 22 $ 10 The Company conducts a regular assessment of its investment securities with unrealized losses to determine whether investment securities are other-than-temporarily impaired considering, among other factors, the nature of the investment securities, the credit ratings or financial condition of the issuer, the extent and duration of the unrealized loss, expected cash flows of underlying collateral, the existence of any government or agency guarantees, market conditions and whether the Company intends to sell or it is more likely than not the Company will be required to sell the investment securities. The Company determines other-than-temporary impairment recorded in earnings for investment securities not intended to be sold by estimating the future cash flows of each individual investment security, using market information where available, and discounting the cash flows at the original effective rate of the investment security. Other-than-temporary impairment recorded in other comprehensive income (loss) is measured as the difference between that discounted amount and the fair value of each investment security. The total amount of other-than-temporary impairment recorded was immaterial for the years ended December 31, 2018, 2017 and 2016. At December 31, 2018, certain investment securities had a fair value below amortized cost. The following table shows the gross unrealized losses and fair value of the Company’s investment securities with unrealized losses, aggregated by investment category and length of time the individual investment securities have been in continuous unrealized loss positions, at December 31, 2018: Less Than 12 Months 12 Months or Greater Total (Dollars in Millions) Fair Unrealized Fair Value Unrealized Fair Value Unrealized Held-to-maturity U.S. Treasury and agencies $ 182 $ (1 ) $ 4,639 $ (142 ) $ 4,821 $ (143 ) Residential agency mortgage-backed securities 7,878 (83 ) 25,570 (911 ) 33,448 (994 ) Other asset-backed securities — — 2 — 2 — Obligations of foreign governments 1 — — — 1 — Other — — 8 — 8 — Total held-to-maturity $ 8,061 $ (84 ) $ 30,219 $ (1,053 ) $ 38,280 $ (1,137 ) Available-for-sale U.S. Treasury and agencies $ 118 $ — $ 17,828 $ (358 ) $ 17,946 $ (358 ) Residential agency mortgage-backed securities 6,269 (45 ) 23,694 (865 ) 29,963 (910 ) Commercial agency mortgage-backed securities 2 — — — 2 — Obligations of state and political subdivisions 2,623 (60 ) 1,363 (112 ) 3,986 (172 ) Total available-for-sale $ 9,012 $ (105 ) $ 42,885 $ (1,335 ) $ 51,897 $ (1,440 ) The Company does not consider these unrealized losses to be credit-related. These unrealized losses primarily relate to changes in interest rates and market spreads subsequent to purchase. A substantial portion of investment securities that have unrealized losses are either U.S. Treasury and agencies, agency mortgage-backed or state and political securities. In general, the issuers of the investment securities are contractually prohibited from prepayment at less than par, and the Company did not pay significant purchase premiums for these investment securities. At December 31, 2018, the Company had no plans to sell investment securities with unrealized losses, and believes it is more likely than not it would not be required to sell such investment securities before recovery of their amortized cost.

Loans and Allowance for Credit

Loans and Allowance for Credit Losses	12 Months Ended
	Dec. 31, 2018
Receivables [Abstract]
Loans and Allowance for Credit Losses	NOTE 5 Loans and Allowance for Credit Losses The composition of the loan portfolio at December 31, disaggregated by class and underlying specific portfolio type, was as follows: (Dollars in Millions) 2018 2017 Commercial Commercial $ 96,849 $ 91,958 Lease financing 5,595 5,603 Total commercial 102,444 97,561 Commercial Real Estate Commercial mortgages 28,596 29,367 Construction and development 10,943 11,096 Total commercial real estate 39,539 40,463 Residential Mortgages Residential mortgages 53,034 46,685 Home equity loans, first liens 12,000 13,098 Total residential mortgages 65,034 59,783 Credit Card 23,363 22,180 Other Retail Retail leasing 8,546 7,988 Home equity and second mortgages 16,122 16,327 Revolving credit 3,088 3,183 Installment 9,676 8,989 Automobile 18,719 18,934 Student (a) 279 1,903 Total other retail 56,430 57,324 Covered Loans (b) — 3,121 Total loans $ 286,810 $ 280,432 (a) During 2018, the Company sold all of its federally guaranteed student loans. (b) During 2018, the majority of the Company’s covered loans were sold and the loss share coverage expired. As of December 31, 2018, any remaining loan balances were reclassified to be included in their respective portfolio category. The Company had loans of $88.7 billion at December 31, 2018, and $83.3 billion at December 31, 2017, pledged at the Federal Home Loan Bank, and loans of $70.1 billion at December 31, 2018, and $68.0 billion at December 31, 2017, pledged at the Federal Reserve Bank. The majority of the Company’s loans are to borrowers in the states in which it has Consumer and Business Banking offices. Collateral for commercial loans may include marketable securities, accounts receivable, inventory, equipment and real estate. For details of the Company’s commercial portfolio by industry group and geography as of December 31, 2018 and 2017, see Table 7 included in Management’s Discussion and Analysis which is incorporated by reference into these Notes to Consolidated Financial Statements. For detail of the Company’s commercial real estate portfolio by property type and geography as of December 31, 2018 and 2017, see Table 8 included in Management’s Discussion and Analysis which is incorporated by reference into these Notes to Consolidated Financial Statements. Collateral for such loans may include the related property, marketable securities, accounts receivable, inventory and equipment. Originated loans are reported at the principal amount outstanding, net of unearned interest and deferred fees and costs, and any partial charge-offs recorded. Net unearned interest and deferred fees and costs amounted to $872 million at December 31, 2018, and $830 million at December 31, 2017. All purchased loans are recorded at fair value at the date of purchase. The Company evaluates purchased loans for impairment at the date of purchase in accordance with applicable authoritative accounting guidance. Purchased loans with evidence of credit deterioration since origination for which it is probable that all contractually required payments will not be collected are considered “purchased impaired loans.” All other purchased loans are considered “purchased nonimpaired loans.” Allowance for Credit Losses Activity in the allowance for credit losses by portfolio class was as follows: (Dollars in Millions) Commercial Commercial Residential Credit Other Covered Total Balance at December 31, 2017 $ 1,372 $ 831 $ 449 $ 1,056 $ 678 $ 31 $ 4,417 Add Provision for credit losses 333 (50 ) 23 892 211 (30 ) 1,379 Deduct Loans charged-off 350 9 48 970 383 – 1,760 Less recoveries of loans charged-off (99 ) (28 ) (31 ) (124 ) (124 ) – (406 ) Net loans charged-off 251 (19 ) 17 846 259 – 1,354 Other changes (a) – – – – – (1 ) (1 ) Balance at December 31, 2018 $ 1,454 $ 800 $ 455 $ 1,102 $ 630 $ – $ 4,441 Balance at December 31, 2016 $ 1,450 $ 812 $ 510 $ 934 $ 617 $ 34 $ 4,357 Add Provision for credit losses 186 19 (24 ) 908 304 (3 ) 1,390 Deduct Loans charged-off 414 30 65 887 355 – 1,751 Less recoveries of loans charged-off (150 ) (30 ) (28 ) (101 ) (112 ) – (421 ) Net loans charged-off 264 – 37 786 243 – 1,330 Balance at December 31, 2017 $ 1,372 $ 831 $ 449 $ 1,056 $ 678 $ 31 $ 4,417 Balance at December 31, 2015 $ 1,287 $ 724 $ 631 $ 883 $ 743 $ 38 $ 4,306 Add Provision for credit losses 488 75 (61 ) 728 95 (1 ) 1,324 Deduct Loans charged-off 417 22 85 759 332 – 1,615 Less recoveries of loans charged-off (92 ) (35 ) (25 ) (83 ) (111 ) – (346 ) Net loans charged-off 325 (13 ) 60 676 221 – 1,269 Other changes (a) – – – (1 ) – (3 ) (4 ) Balance at December 31, 2016 $ 1,450 $ 812 $ 510 $ 934 $ 617 $ 34 $ 4,357 (a) Includes net changes in credit losses to be reimbursed by the FDIC and reductions in the allowance for covered loans where the reversal of a previously recorded allowance was offset by an associated decrease in the indemnification asset, and the impact of any loan sales. Additional detail of the allowance for credit losses by portfolio class was as follows: (Dollars in Millions) Commercial Commercial Residential Credit Other Covered Total Allowance Balance at December 31, 2018 Related to Loans individually evaluated for impairment (a) $ 16 $ 8 $ – $ – $ – $ – $ 24 TDRs collectively evaluated for impairment 15 3 126 69 12 – 225 Other loans collectively evaluated for impairment 1,423 788 314 1,033 618 – 4,176 Loans acquired with deteriorated credit quality – 1 15 – – – 16 Total allowance for credit losses $ 1,454 $ 800 $ 455 $ 1,102 $ 630 $ – $ 4,441 Allowance Balance at December 31, 2017 Related to Loans individually evaluated for impairment (a) $ 23 $ 4 $ – $ – $ – $ – $ 27 TDRs collectively evaluated for impairment 14 4 139 60 19 1 237 Other loans collectively evaluated for impairment 1,335 818 310 996 659 – 4,118 Loans acquired with deteriorated credit quality – 5 – – – 30 35 Total allowance for credit losses $ 1,372 $ 831 $ 449 $ 1,056 $ 678 $ 31 $ 4,417 (a) Represents the allowance for credit losses related to loans greater than $5 million classified as nonperforming or TDRs. Additional detail of loan balances by portfolio class was as follows: (Dollars in Millions) Commercial Commercial Residential Credit Other Covered Total Loans December 31, 2018 Loans individually evaluated for impairment (a) $ 262 $ 86 $ – $ – $ – $ – $ 348 TDRs collectively evaluated for impairment 151 129 3,252 245 183 – 3,960 Other loans collectively evaluated for impairment 102,031 39,297 61,465 23,118 56,247 – 282,158 Loans acquired with deteriorated credit quality – 27 317 – – – 344 Total loans $ 102,444 $ 39,539 $ 65,034 $ 23,363 $ 56,430 $ – $ 286,810 December 31, 2017 Loans individually evaluated for impairment (a) $ 337 $ 71 $ – $ – $ – $ – $ 408 TDRs collectively evaluated for impairment 148 145 3,524 230 186 36 4,269 Other loans collectively evaluated for impairment 97,076 40,174 56,258 21,950 57,138 1,073 273,669 Loans acquired with deteriorated credit quality – 73 1 – – 2,012 2,086 Total loans $ 97,561 $ 40,463 $ 59,783 $ 22,180 $ 57,324 $ 3,121 $ 280,432 (a) Represents loans greater than $5 million classified as nonperforming or TDRs. (b) Includes expected reimbursements from the FDIC under loss sharing agreements. Credit Quality The following table provides a summary of loans by portfolio class, including the delinquency status of those that continue to accrue interest, and those that are nonperforming: Accruing (Dollars in Millions) Current 30-89 Days 90 Days or Nonperforming Total December 31, 2018 Commercial $ 101,844 $ 322 $ 69 $ 209 $ 102,444 Commercial real estate 39,354 70 – 115 39,539 Residential mortgages (a) 64,443 181 114 296 65,034 Credit card 22,746 324 293 – 23,363 Other retail 55,722 403 108 197 56,430 Total loans $ 284,109 $ 1,300 $ 584 $ 817 $ 286,810 December 31, 2017 Commercial $ 97,005 $ 250 $ 57 $ 249 $ 97,561 Commercial real estate 40,279 36 6 142 40,463 Residential mortgages (a) 59,013 198 130 442 59,783 Credit card 21,593 302 284 1 22,180 Other retail 56,685 376 95 168 57,324 Covered loans 2,917 50 148 6 3,121 Total loans $ 277,492 $ 1,212 $ 720 $ 1,008 $ 280,432 (a) At December 31, 2018, $430 million of loans 30–89 days past due and $1.7 billion of loans 90 days or more past due purchased from Government National Mortgage Association (“GNMA”) mortgage pools whose repayments are insured by the Federal Housing Administration or guaranteed by the United States Department of Veterans Affairs, were classified as current, compared with $385 million and $1.9 billion at December 31, 2017, respectively. Total nonperforming assets include nonaccrual loans, restructured loans not performing in accordance with modified terms, other real estate and other nonperforming assets owned by the Company. For details of the Company’s nonperforming assets as of December 31, 2018 and 2017, see Table 16 included in Management’s Discussion and Analysis which is incorporated by reference into these Notes to Consolidated Financial Statements. At December 31, 2018, the amount of foreclosed residential real estate held by the Company, and included in OREO, was $106 million, compared with $156 million at December 31, 2017. These amounts exclude $235 million and $267 million at December 31, 2018 and 2017, respectively, of foreclosed residential real estate related to mortgage loans whose payments are primarily insured by the Federal Housing Administration or guaranteed by the United States Department of Veterans Affairs. In addition, the amount of residential mortgage loans secured by residential real estate in the process of foreclosure at December 31, 2018 and 2017, was $1.5 billion and $1.7 billion, respectively, of which $1.2 billion and $1.3 billion, respectively, related to loans purchased from Government National Mortgage Association (“GNMA”) mortgage pools whose repayments are insured by the Federal Housing Administration or guaranteed by the United States Department of Veterans Affairs. The following table provides a summary of loans by portfolio class and the Company’s internal credit quality rating: Criticized (Dollars in Millions) Pass Special Classified (a) Total Total December 31, 2018 Commercial $ 100,014 $ 1,149 $ 1,281 $ 2,430 $ 102,444 Commercial real estate 38,473 584 482 1,066 39,539 Residential mortgages (b) 64,570 1 463 464 65,034 Credit card 23,070 – 293 293 23,363 Other retail 56,101 6 323 329 56,430 Total loans $ 282,228 $ 1,740 $ 2,842 $ 4,582 $ 286,810 Total outstanding commitments $ 600,407 $ 2,801 $ 3,448 $ 6,249 $ 606,656 December 31, 2017 Commercial $ 95,297 $ 1,130 $ 1,134 $ 2,264 $ 97,561 Commercial real estate 39,162 648 653 1,301 40,463 Residential mortgages (b) 59,141 16 626 642 59,783 Credit card 21,895 – 285 285 22,180 Other retail 57,009 6 309 315 57,324 Covered loans 3,072 – 49 49 3,121 Total loans $ 275,576 $ 1,800 $ 3,056 $ 4,856 $ 280,432 Total outstanding commitments $ 584,072 $ 3,142 $ 3,987 $ 7,129 $ 591,201 (a) Classified rating on consumer loans primarily based on delinquency status. (b) At December 31, 2018, $1.7 billion of GNMA loans 90 days or more past due and $1.6 billion of restructured GNMA loans whose repayments are insured by the Federal Housing Administration or guaranteed by the United States Department of Veterans Affairs were classified with a pass rating, compared with $1.9 billion and $1.7 billion at December 31, 2017, respectively. For all loan classes, a loan is considered to be impaired when, based on current events or information, it is probable the Company will be unable to collect all amounts due per the contractual terms of the loan agreement. A summary of impaired loans, which include all nonaccrual and TDR loans, by portfolio class was as follows: (Dollars in Millions) Period-end Recorded Investment (a) Unpaid Valuation Commitments December 31, 2018 Commercial $ 467 $ 1,006 $ 32 $ 106 Commercial real estate 279 511 12 2 Residential mortgages 1,709 1,879 86 – Credit card 245 245 69 – Other retail 335 418 14 5 Total loans, excluding loans purchased from GNMA mortgage pools 3,035 4,059 213 113 Loans purchased from GNMA mortgage pools 1,639 1,639 41 – Total $ 4,674 $ 5,698 $ 254 $ 113 December 31, 2017 Commercial $ 550 $ 915 $ 44 $ 199 Commercial real estate 280 596 11 – Residential mortgages 1,946 2,339 116 1 Credit card 230 230 60 – Other retail 302 400 22 4 Covered loans 38 44 1 – Total loans, excluding loans purchased from GNMA mortgage pools 3,346 4,524 254 204 Loans purchased from GNMA mortgage pools 1,681 1,681 25 – Total $ 5,027 $ 6,205 $ 279 $ 204 (a) Substantially all loans classified as impaired at December 31, 2018 and 2017, had an associated allowance for credit losses. The total amount of interest income recognized during 2018 on loans classified as impaired at December 31, 2018, excluding those acquired with deteriorated credit quality, was $164 million, compared to what would have been recognized at the original contractual terms of the loans of $226 million. Additional information on impaired loans for the years ended December 31 follows: (Dollars in Millions) Average Interest 2018 Commercial $ 497 $ 8 Commercial real estate 273 13 Residential mortgages 1,817 76 Credit card 236 3 Other retail 309 16 Covered loans 25 1 Total loans, excluding loans purchased from GNMA mortgage pools 3,157 117 Loans purchased from GNMA mortgage pools 1,640 47 Total $ 4,797 $ 164 2017 Commercial $ 683 $ 7 Commercial real estate 273 11 Residential mortgages 2,135 103 Credit card 229 3 Other retail 287 14 Covered loans 37 1 Total loans, excluding loans purchased from GNMA mortgage pools 3,644 139 Loans purchased from GNMA mortgage pools 1,672 65 Total $ 5,316 $ 204 2016 Commercial $ 799 $ 9 Commercial real estate 324 15 Residential mortgages 2,422 124 Credit card 214 4 Other retail 293 13 Covered loans 38 1 Total loans, excluding loans purchased from GNMA mortgage pools 4,090 166 Loans purchased from GNMA mortgage pools 1,620 71 Total $ 5,710 $ 237 Troubled Debt Restructurings (Dollars in Millions) Number Pre-Modification Balance Post-Modification Balance 2018 Commercial 2,824 $ 336 $ 311 Commercial real estate 127 168 169 Residential mortgages 526 73 69 Credit card 33,318 169 171 Other retail 2,462 58 55 Covered loans 3 1 1 Total loans, excluding loans purchased from GNMA mortgage pools 39,260 805 776 Loans purchased from GNMA mortgage pools 6,268 821 803 Total loans 45,528 $ 1,626 $ 1,579 2017 Commercial 2,758 $ 380 $ 328 Commercial real estate 128 82 78 Residential mortgages 800 90 88 Credit card 33,615 161 162 Other retail 3,881 79 68 Covered loans 11 2 2 Total loans, excluding loans purchased from GNMA mortgage pools 41,193 794 726 Loans purchased from GNMA mortgage pools 6,791 881 867 Total loans 47,984 $ 1,675 $ 1,593 2016 Commercial 2,352 $ 844 $ 699 Commercial real estate 102 259 256 Residential mortgages 1,576 168 178 Credit card 31,394 151 153 Other retail 2,235 41 40 Covered loans 39 6 7 Total loans, excluding loans purchased from GNMA mortgage pools 37,698 1,469 1,333 Loans purchased from GNMA mortgage pools 11,260 1,274 1,267 Total loans 48,958 $ 2,743 $ 2,600 Residential mortgages, home equity and second mortgages, and loans purchased from GNMA mortgage pools in the table above include trial period arrangements offered to customers during the periods presented. The post-modification balances for these loans reflect the current outstanding balance until a permanent modification is made. In addition, the post-modification balances typically include capitalization of unpaid accrued interest and/or fees under the various modification programs. For those loans modified as TDRs during the fourth quarter of 2018, at December 31, 2018, 51 residential mortgages, 34 home equity and second mortgage loans and 1,022 loans purchased from GNMA mortgage pools with outstanding balances of $10 million, $2 million and $133 million, respectively, were in a trial period and have estimated post-modification balances of $10 million, $3 million and $133 million, respectively, assuming permanent modification occurs at the end of the trial period. The following table provides a summary of TDR loans that defaulted (fully or partially charged-off (Dollars in Millions) Number Amount 2018 Commercial 836 $ 71 Commercial real estate 39 15 Residential mortgages 191 18 Credit card 8,012 35 Other retail 334 5 Covered loans 1 – Total loans, excluding loans purchased from GNMA mortgage pools 9,413 144 Loans purchased from GNMA mortgage pools 1,447 187 Total loans 10,860 $ 331 2017 Commercial 724 $ 53 Commercial real estate 36 9 Residential mortgages 374 41 Credit card 8,372 36 Other retail 415 5 Covered loans 4 – Total loans, excluding loans purchased from GNMA mortgage pools 9,925 144 Loans purchased from GNMA mortgage pools 1,369 177 Total loans 11,294 $ 321 2016 Commercial 531 $ 24 Commercial real estate 27 12 Residential mortgages 132 17 Credit card 6,827 30 Other retail 434 9 Covered loans 4 1 Total loans, excluding loans purchased from GNMA mortgage pools 7,955 93 Loans purchased from GNMA mortgage pools 202 25 Total loans 8,157 $ 118 In addition to the defaults in the table above, the Company had a total of 1,034 residential mortgage loans, home equity and second mortgage loans and loans purchased from GNMA mortgage pools for the year ended December 31, 2018, where borrowers did not successfully complete the trial period arrangement and, therefore, are no longer eligible for a permanent modification under the applicable modification program. These loans had aggregate outstanding balances of $98 million for the year ended December 31, 2018.

Leases

Leases	12 Months Ended
	Dec. 31, 2018
Leases [Abstract]
Leases	NOTE 6 Leases The components of the net investment in sales-type and direct financing leases at December 31 were as follows: (Dollars in Millions) 2018 2017 Aggregate future minimum lease payments to be received $ 13,222 $ 12,709 Unguaranteed residual values accruing to the lessor’s benefit 1,877 1,731 Unearned income (1,272 ) (1,205 ) Initial direct costs 257 274 Total net investment in sales-type and direct financing leases (a) $ 14,084 $ 13,509 (a) The accumulated allowance for uncollectible minimum lease payments was $90 million and $94 million at December 31, 2018 and 2017, respectively. The minimum future lease payments to be received from sales-type and direct financing leases were as follows at December 31, 2018: (Dollars in Millions) 2019 $ 4,264 2020 4,146 2021 2,777 2022 1,177 2023 335 Thereafter 523

Accounting for Transfers and Se

Accounting for Transfers and Servicing of Financial Assets and Variable Interest Entities	12 Months Ended
	Dec. 31, 2018
Accounting Policies [Abstract]
Accounting for Transfers and Servicing of Financial Assets and Variable Interest Entities	NOTE 7 Accounting for Transfers and Servicing of Financial Assets and Variable Interest Entities The Company transfers financial assets in the normal course of business. The majority of the Company’s financial asset transfers are residential mortgage loan sales primarily to government-sponsored enterprises (“GSEs”), transfers of tax-advantaged For loans sold under participation agreements, the Company also considers whether the terms of the loan participation agreement meet the accounting definition of a participating interest. With the exception of servicing and certain performance-based guarantees, the Company’s continuing involvement with financial assets sold is minimal and generally limited to market customary representation and warranty clauses. Any gain or loss on sale depends on the previous carrying amount of the transferred financial assets, the consideration received, and any liabilities incurred in exchange for the transferred assets. Upon transfer, any servicing assets and other interests that continue to be held by the Company are initially recognized at fair value. For further information on MSRs, refer to Note 9. On a limited basis, the Company may acquire and package high-grade corporate bonds for select corporate customers, in which the Company generally has no continuing involvement with these transactions. Additionally, the Company is an authorized GNMA issuer and issues GNMA securities on a regular basis. The Company has no other asset securitizations or similar asset-backed financing arrangements that are off-balance The Company also provides financial support primarily through the use of waivers of trust and investment management fees associated with various unconsolidated registered money market funds it manages. The Company provided $25 million, $23 million and $45 million of support to the funds during the years ended December 31, 2018, 2017 and 2016, respectively. The Company is involved in various entities that are considered to be VIEs. The Company’s investments in VIEs are primarily related to investments promoting affordable housing, community development and renewable energy sources. Some of these tax-advantaged tax-advantaged The Company is not required to consolidate VIEs in which it has concluded it does not have a controlling financial interest, and thus is not the primary beneficiary. In such cases, the Company does not have both the power to direct the entities’ most significant activities and the obligation to absorb losses or the right to receive benefits that could potentially be significant to the VIEs. The Company’s investments in these unconsolidated VIEs are carried in other assets on the Consolidated Balance Sheet. The Company’s unfunded capital and other commitments related to these unconsolidated VIEs are generally carried in other liabilities on the Consolidated Balance Sheet. The Company’s maximum exposure to loss from these unconsolidated VIEs include the investment recorded on the Company’s Consolidated Balance Sheet, net of unfunded capital commitments, and previously recorded tax credits which remain subject to recapture by taxing authorities based on compliance features required to be met at the project level. While the Company believes potential losses from these investments are remote, the maximum exposure was determined by assuming a scenario where the community-based business and housing projects completely fail and do not meet certain government compliance requirements resulting in recapture of the related tax credits. The following table provides a summary of investments in community development and tax-advantaged At December 31 (Dollars in Millions) 2018 2017 Investment carrying amount $ 5,823 $ 5,660 Unfunded capital and other commitments 2,778 2,770 Maximum exposure to loss 12,360 12,120 The Company also has noncontrolling financial investments in private investment funds and partnerships considered to be VIEs, which are not consolidated. The Company’s recorded investment in these entities, carried in other assets on the Consolidated Balance Sheet, was approximately $27 million at December 31, 2018 and $30 million at December 31, 2017. The maximum exposure to loss related to these VIEs was $52 million at December 31, 2018 and $51 million at December 31, 2017, representing the Company’s investment balance and its unfunded commitments to invest additional amounts. The Company’s individual net investments in unconsolidated VIEs, which exclude any unfunded capital commitments, ranged from less than $1 million to $95 million at December 31, 2018, compared with less than $1 million to $56 million at December 31, 2017. The Company is required to consolidate VIEs in which it has concluded it has a controlling financial interest. The Company sponsors entities to which it transfers its interests in tax-advantaged tax-advantaged The Company also sponsors a conduit to which it previously transferred high-grade investment securities. The Company consolidates the conduit because of its ability to manage the activities of the conduit. At December 31, 2018, $14 million of the held-to-maturity In addition, the Company sponsors a municipal bond securities tender option bond program. The Company controls the activities of the program’s entities, is entitled to the residual returns and provides liquidity and remarketing arrangements to the program. As a result, the Company has consolidated the program’s entities. At December 31, 2018, $2.4 billion of available-for-sale available-for-sale

Premises and Equipment

Premises and Equipment	12 Months Ended
	Dec. 31, 2018
Property, Plant and Equipment [Abstract]
Premises and Equipment	NOTE 8 Premises and Equipment Premises and equipment at December 31 consisted of the following: (Dollars in Millions) 2018 2017 Land $ 515 $ 520 Buildings and improvements 3,481 3,425 Furniture, fixtures and equipment 3,110 2,951 Capitalized building and equipment leases 121 130 Construction in progress 20 35 7,247 7,061 Less accumulated depreciation and amortization (4,790 ) (4,629 ) Total $ 2,457 $ 2,432

Mortgage Servicing Rights

Mortgage Servicing Rights	12 Months Ended
	Dec. 31, 2018
Text Block [Abstract]
Mortgage Servicing Rights	NOTE 9 Mortgage Servicing Rights The Company capitalizes MSRs as separate assets when loans are sold and servicing is retained. MSRs may also be purchased from others. The Company carries MSRs at fair value, with changes in the fair value recorded in earnings during the period in which they occur. The Company serviced $231.5 billion of residential mortgage loans for others at December 31, 2018, and $234.7 billion at December 31, 2017, including subserviced mortgages with no corresponding MSR asset. Included in mortgage banking revenue are the MSR fair value changes arising from market rate and model assumption changes, net of the value change in derivatives used to economically hedge MSRs. These changes resulted in net gains of $47 million, $15 million and $7 million for the years ended December 31, 2018, 2017 and 2016, respectively. Loan servicing and ancillary fees, not including valuation changes, included in mortgage banking revenue were $746 million, $746 million and $750 million for the years ended December 31, 2018, 2017 and 2016, respectively. Changes in fair value of capitalized MSRs for the years ended December 31, are summarized as follows: (Dollars in Millions) 2018 2017 2016 Balance at beginning of period $ 2,645 $ 2,591 $ 2,512 Rights purchased 8 13 43 Rights capitalized 397 445 524 Rights sold (27 ) – – Changes in fair value of MSRs Due to fluctuations in market interest rates (a) 98 (23 ) (55 ) Due to revised assumptions or models (b) 56 18 19 Other changes in fair value (c) (386 ) (399 ) (452 ) Balance at end of period $ 2,791 $ 2,645 $ 2,591 (a) Includes changes in MSR value associated with changes in market interest rates, including estimated prepayment rates and anticipated earnings on escrow deposits. (b) Includes changes in MSR value not caused by changes in market interest rates, such as changes in cost to service, ancillary income and option adjusted spread, as well as the impact of any model changes. (c) Primarily represents changes due to realization of expected cash flows over time (decay). The estimated sensitivity to changes in interest rates of the fair value of the MSR portfolio and the related derivative instruments as of December 31 follows: 2018 2017 (Dollars in Millions) Down Down Down Up Up 50 bps Up Down Down Down Up Up 50 bps Up MSR portfolio $ (501 ) $ (223 ) $ (105 ) $ 92 $ 171 $ 295 $ (520 ) $ (231 ) $ (109 ) $ 95 $ 177 $ 302 Derivative instrument hedges 455 215 104 (94 ) (177 ) (321 ) 453 216 105 (96 ) (184 ) (336 ) Net sensitivity $ (46 ) $ (8 ) $ (1 ) $ (2 ) $ (6 ) $ (26 ) $ (67 ) $ (15 ) $ (4 ) $ (1 ) $ (7 ) $ (34 ) The fair value of MSRs and their sensitivity to changes in interest rates is influenced by the mix of the servicing portfolio and characteristics of each segment of the portfolio. The Company’s servicing portfolio consists of the distinct portfolios of government-insured mortgages, conventional mortgages and Housing Finance Agency (“HFA”) mortgages. The servicing portfolios are predominantly comprised of fixed-rate agency loans with limited adjustable-rate or jumbo mortgage loans. The HFA servicing portfolio is comprised of loans originated under state and local housing authority program guidelines which assist purchases by first-time or low- A summary of the Company’s MSRs and related characteristics by portfolio as of December 31 follows: 2018 2017 (Dollars in Millions) HFA Government Conventional (d) Total HFA Government Conventional (d) Total Servicing portfolio (a) $ 44,384 $ 35,990 $ 148,910 $ 229,284 $ 40,737 $ 36,756 $ 155,353 $ 232,846 Fair value $ 526 $ 465 $ 1,800 $ 2,791 $ 450 $ 428 $ 1,767 $ 2,645 Value (bps) (b) 119 129 121 122 110 116 114 114 Weighted-average servicing fees (bps) 34 36 27 30 35 34 27 29 Multiple (value/servicing fees) 3.45 3.63 4.52 4.11 3.17 3.38 4.24 3.86 Weighted-average note rate 4.59 % 3.97 % 4.06 % 4.15 % 4.43 % 3.92 % 4.02 % 4.08 % Weighted-average age (in years) 3.3 4.7 4.5 4.3 3.0 4.3 4.2 4.0 Weighted-average expected prepayment (constant prepayment rate) 9.8 % 11.0 % 9.1 % 9.5 % 9.8 % 11.6 % 9.7 % 10.0 % Weighted-average expected life (in years) 7.7 6.7 7.1 7.2 7.7 6.5 6.9 7.0 Weighted-average option adjusted spread (c) 8.6 % 8.3 % 7.2 % 7.6 % 9.9 % 9.2 % 7.2 % 8.0 % (a) Represents principal balance of mortgages having corresponding MSR asset. (b) Calculated as fair value divided by the servicing portfolio. (c) Option adjusted spread is the incremental spread added to the risk-free rate to reflect optionality and other risk inherent in the MSRs. (d) Represents loans sold primarily to GSEs.

Intangible Assets

Intangible Assets	12 Months Ended
	Dec. 31, 2018
Goodwill and Intangible Assets Disclosure [Abstract]
Intangible Assets	NOTE 10 Intangible Assets Intangible assets consisted of the following: At December 31 (Dollars in Millions) Estimated Life (a) Amortization (b) Balance 2018 2017 Goodwill (c) $ 9,369 $ 9,434 Merchant processing contracts 6 years/8 years SL/AC 155 89 Core deposit benefits 22 years/5 years SL/AC 104 131 Mortgage servicing rights (c) 2,791 2,645 Trust relationships 10 years/7 years SL/AC 34 45 Other identified intangibles 5 years/4 years SL/AC 308 318 Total $ 12,761 $ 12,662 (a) Estimated life represents the amortization period for assets subject to the straight line method and the weighted average or life of the underlying cash flows amortization period for intangibles subject to accelerated methods. If more than one amortization method is used for a category, the estimated life for each method is calculated and reported separately. (b) Amortization methods: SL = straight line method AC = accelerated methods generally based on cash flows (c) Goodwill is evaluated for impairment, but not amortized. Mortgage servicing rights are recorded at fair value, and are not amortized. Aggregate amortization expense consisted of the following: Year Ended December 31 (Dollars in Millions) 2018 2017 2016 Merchant processing contracts $ 24 $ 24 $ 28 Core deposit benefits 26 30 34 Trust relationships 11 14 16 Other identified intangibles 100 107 101 Total $ 161 $ 175 $ 179 The estimated amortization expense for the next five years is as follows: (Dollars in Millions) 2019 $ 141 2020 113 2021 90 2022 74 2023 45 The following table reflects the changes in the carrying value of goodwill for the years ended December 31, 2018, 2017 and 2016: (Dollars in Millions) Corporate and Consumer and Wealth Management and Payment Treasury and Consolidated Balance at December 31, 2015 $ 1,647 $ 3,681 $ 1,567 $ 2,466 $ – $ 9,361 Foreign exchange translation and other – – (1 ) (16 ) – (17 ) Balance at December 31, 2016 $ 1,647 $ 3,681 $ 1,566 $ 2,450 $ – $ 9,344 Goodwill acquired – – – 62 – 62 Foreign exchange translation and other – – 3 25 – 28 Balance at December 31, 2017 $ 1,647 $ 3,681 $ 1,569 $ 2,537 $ – $ 9,434 Goodwill acquired – – – 105 – 105 Disposal – (155 ) – – – (155 ) Foreign exchange translation and other – (51 ) 49 (13 ) – (15 ) Balance at December 31, 2018 $ 1,647 $ 3,475 $ 1,618 $ 2,629 $ – $ 9,369

Deposits

Deposits	12 Months Ended
	Dec. 31, 2018
Banking and Thrift [Abstract]
Deposits	NOTE 11 Deposits The composition of deposits at December 31 was as follows: (Dollars in Millions) 2018 2017 Noninterest-bearing deposits $ 81,811 $ 87,557 Interest-bearing deposits Interest checking 73,994 74,520 Money market savings 100,396 107,973 Savings accounts 44,720 43,809 Time deposits 44,554 33,356 Total interest-bearing deposits 263,664 259,658 Total deposits $ 345,475 $ 347,215 The maturities of time deposits outstanding at December 31, 2018 were as follows: (Dollars in Millions) 2019 $ 38,272 2020 3,214 2021 1,740 2022 726 2023 598 Thereafter 4 Total $ 44,554

Short-Term Borrowings

Short-Term Borrowings	12 Months Ended
	Dec. 31, 2018
Debt Disclosure [Abstract]
Short-Term Borrowings	NOTE 12 Short-Term Borrowings (a) The following table is a summary of short-term borrowings for the last three years: 2018 2017 2016 (Dollars in Millions) Amount Rate Amount Rate Amount Rate At year-end Federal funds purchased $ 458 2.05 % $ 252 .77 % $ 447 .30 % Securities sold under agreements to repurchase 2,582 2.20 803 .61 801 .12 Commercial paper 6,940 1.35 8,303 .68 10,010 .30 Other short-term borrowings 4,159 2.68 7,293 2.13 2,705 1.00 Total $ 14,139 1.92 % $ 16,651 1.31 % $ 13,963 .43 % Average for the year Federal funds purchased $ 1,070 1.70 % $ 528 .86 % $ 1,015 .30 % Securities sold under agreements to repurchase 2,279 1.87 917 .44 891 .18 Commercial paper 6,929 .94 8,236 .49 14,827 .26 Other short-term borrowings 11,512 2.27 5,341 1.90 3,173 1.67 Total $ 21,790 1.78 % $ 15,022 1.00 % $ 19,906 .48 % Maximum month-end Federal funds purchased $ 4,532 $ 600 $ 2,487 Securities sold under agreements to repurchase 3,225 927 1,177 Commercial paper 7,846 9,950 21,441 Other short-term borrowings 16,588 7,293 6,771 (a) Interest and rates are presented on a fully taxable-equivalent basis utilizing a tax rate of 21 percent for 2018 and 35 percent for 2017 and 2016.

Long-Term Debt

Long-Term Debt	12 Months Ended
	Dec. 31, 2018
Debt Disclosure [Abstract]
Long-Term Debt	NOTE 13 Long-Term Debt Long-term debt (debt with original maturities of more than one year) at December 31 consisted of the following: (Dollars in Millions) Rate Rate (a) Maturity Date 2018 2017 U.S. Bancorp (Parent Company) Subordinated notes Fixed 2.950 % 2022 $ 1,300 $ 1,300 Fixed 3.600 % 2024 1,000 1,000 Fixed 7.500 % 2026 199 199 Fixed 3.100 % 2026 1,000 1,000 Medium-term notes Fixed .850% - 4.125 % 2019 - 2028 12,345 11,299 Floating 2.890% - 3.127 % 2019 - 2022 500 1,000 Other (b) (53 ) (29 ) Subtotal 16,291 15,769 Subsidiaries Federal Home Loan Bank advances Fixed 1.250% - 8.250 % 2019 - 2026 307 208 Floating 2.650% - 3.175 % 2019 - 2026 4,272 5,272 Bank notes Fixed 1.400% - 3.450 % 2019 - 2025 11,600 6,200 Floating 2.177% - 3.009 % 2019 - 2058 7,864 3,810 Other (c) 1,006 1,000 Subtotal 25,049 16,490 Total $ 41,340 $ 32,259 (a) Weighted-average interest rates of medium-term notes, Federal Home Loan Bank advances and bank notes were 2.84 percent, 2.96 percent and 2.63 percent, respectively. (b) Includes debt issuance fees and unrealized gains and losses and deferred amounts relating to derivative instruments. (c) Includes consolidated community development and tax-advantaged The Company has arrangements with the Federal Home Loan Bank and Federal Reserve Bank whereby the Company could have borrowed an additional $98.8 billion and $87.7 billion at December 31, 2018 and 2017, respectively, based on collateral available. Maturities of long-term debt outstanding at December 31, 2018, were: (Dollars in Millions) Parent Consolidated 2019 $ 1,497 $ 8,080 2020 – 6,407 2021 2,696 6,719 2022 3,793 4,082 2023 – 2,004 Thereafter 8,305 14,048 Total $ 16,291 $ 41,340

Shareholder' Equity

Shareholder' Equity	12 Months Ended
	Dec. 31, 2018
Federal Home Loan Banks [Abstract]
Shareholder' Equity	NOTE 14 Shareholders’ Equity At December 31, 2018 and 2017, the Company had authority to issue 4 billion shares of common stock and 50 million shares of preferred stock. The Company had 1.6 billion and 1.7 billion shares of common stock outstanding at December 31, 2018 and 2017, respectively. The Company had 52 million shares reserved for future issuances, primarily under its stock incentive plans at December 31, 2018. The number of shares issued and outstanding and the carrying amount of each outstanding series of the Company’s preferred stock were as follows: 2018 2017 At December 31 (Dollars in Millions) Shares Liquidation Discount Carrying Shares Liquidation Discount Carrying Series A 12,510 $ 1,251 $ 145 $ 1,106 12,510 $ 1,251 $ 145 $ 1,106 Series B 40,000 1,000 – 1,000 40,000 1,000 – 1,000 Series F 44,000 1,100 12 1,088 44,000 1,100 12 1,088 Series H 20,000 500 13 487 20,000 500 13 487 Series I 30,000 750 5 745 30,000 750 5 745 Series J 40,000 1,000 7 993 40,000 1,000 7 993 Series K 23,000 575 10 565 – – – – Total preferred stock (a) 209,510 $ 6,176 $ 192 $ 5,984 186,510 $ 5,601 $ 182 $ 5,419 (a) The par value of all shares issued and outstanding at December 31, 2018 and 2017, was $1.00 per share. During 2018, the Company issued depositary shares representing an ownership interest in 23,000 shares of Series K Non-Cumulative During 2017, the Company issued depositary shares representing an ownership interest in 40,000 shares of Series J Non-Cumulative During 2015, the Company issued depositary shares representing an ownership interest in 30,000 shares of Series I Non-Cumulative During 2013, the Company issued depositary shares representing an ownership interest in 20,000 shares of Series H Non-Cumulative During 2012, the Company issued depositary shares representing an ownership interest in 44,000 shares of Series F Non-Cumulative Non-Cumulative During 2010, the Company issued depositary shares representing an ownership interest in 5,746 shares of Series A Non-Cumulative During 2006, the Company issued depositary shares representing an ownership interest in 40,000 shares of Series B Non-Cumulative During 2018, 2017 and 2016, the Company repurchased shares of its common stock under various authorizations approved by its Board of Directors. As of December 31, 2018, the approximate dollar value of shares that may yet be purchased by the Company under the current Board of Directors approved authorization was $1.4 billion. The following table summarizes the Company’s common stock repurchased in each of the last three years: (Dollars and Shares in Millions) Shares Value 2018 54 $ 2,844 2017 49 2,622 2016 61 2,600 Shareholders’ equity is affected by transactions and valuations of asset and liability positions that require adjustments to accumulated other comprehensive income (loss). The reconciliation of the transactions affecting accumulated other comprehensive income (loss) included in shareholders’ equity for the years ended December 31, is as follows: (Dollars in Millions) Unrealized Gains Available-For-Sale Unrealized Gains From Available-For-Sale Held-To-Maturity Unrealized Gains Unrealized Gains Foreign Currency Total 2018 Balance at beginning of period $ (357 ) $ 17 $ 71 $ (1,066 ) $ (69 ) $ (1,404 ) Revaluation of tax related balances (a) (77 ) 4 15 (229 ) (13 ) (300 ) Changes in unrealized gains and losses (656 ) – 39 (302 ) – (919 ) Foreign currency translation adjustment (b) – – – – 3 3 Reclassification to earnings of realized gains and losses (30 ) (9 ) (5 ) 137 – 93 Applicable income taxes 174 2 (8 ) 42 (5 ) 205 Balance at end of period $ (946 ) $ 14 $ 112 $ (1,418 ) $ (84 ) $ (2,322 ) 2017 Balance at beginning of period $ (431 ) $ 25 $ 55 $ (1,113 ) $ (71 ) $ (1,535 ) Changes in unrealized gains and losses 178 – (5 ) (41 ) – 132 Foreign currency translation adjustment (b) – – – – (2 ) (2 ) Reclassification to earnings of realized gains and losses (57 ) (13 ) 30 117 – 77 Applicable income taxes (47 ) 5 (9 ) (29 ) 4 (76 ) Balance at end of period $ (357 ) $ 17 $ 71 $ (1,066 ) $ (69 ) $ (1,404 ) 2016 Balance at beginning of period $ 111 $ 36 $ (67 ) $ (1,056 ) $ (43 ) $ (1,019 ) Changes in unrealized gains and losses (858 ) – 74 (255 ) – (1,039 ) Other-than-temporary impairment not recognized in earnings on securities available-for-sale (1 ) – – – – (1 ) Foreign currency translation (b) – – – – (28 ) (28 ) Reclassification to earnings of realized gains and losses (22 ) (18 ) 124 163 – 247 Applicable income taxes 339 7 (76 ) 35 – 305 Balance at end of period $ (431 ) $ 25 $ 55 $ (1,113 ) $ (71 ) $ (1,535 ) (a) Reflects the adoption of new accounting guidance on January 1, 2018 to reclassify the impact of the reduced federal statutory rate for corporations included in 2017 tax reform legislation from accumulated other comprehensive income to retained earnings. (b) Represents the impact of changes in foreign currency exchange rates on the Company’s investment in foreign operations and related hedges. Additional detail about the impact to net income for items reclassified out of accumulated other comprehensive income (loss) and into earnings for the years ended December 31, is as follows: Impact to Net Income Affected Line Item in the (Dollars in Millions) 2018 2017 2016 Unrealized gains (losses) on investment securities available-for-sale Realized gains (losses) on sale of investment securities $ 30 $ 57 $ 27 Total securities gains (losses), net Other-than-temporary impairment recognized in earnings – – (5 ) 30 57 22 Total before tax (7 ) (22 ) (9 ) Applicable income taxes 23 35 13 Net-of-tax Unrealized gains (losses) on investment securities transferred from available-for-sale to held-to-maturity Amortization of unrealized gains 9 13 18 Interest income (2 ) (5 ) (7 ) Applicable income taxes 7 8 11 Net-of-tax Unrealized gains (losses) on derivative hedges Realized gains (losses) on derivative hedges 5 (30 ) (124 ) Interest expense (2 ) 11 48 Applicable income taxes 3 (19 ) (76 ) Net-of-tax Unrealized gains (losses) on retirement plans Actuarial gains (losses) and prior service cost (credit) amortization (137 ) (117 ) (163 ) Other noninterest expense 35 45 63 Applicable income taxes (102 ) (72 ) (100 ) Net-of-tax Total impact to net income $ (69 ) $ (48 ) $ (152 ) Regulatory Capital Tier 1 capital is considered core capital and includes common shareholders’ equity adjusted for the aggregate impact of certain items included in other comprehensive income (loss) (“common equity tier 1 capital”), plus qualifying preferred stock, trust preferred securities and noncontrolling interests in consolidated subsidiaries subject to certain limitations. Total risk-based capital includes Tier 1 capital and other items such as subordinated debt and the allowance for credit losses. Capital measures are stated as a percentage of risk-weighted assets, which are measured based on their perceived credit and operational risks and include certain off-balance on- off-balance For a summary of the regulatory capital requirements and the actual ratios as of December 31, 2018 and 2017, for the Company and its bank subsidiary, see Table 23 included in Management’s Discussion and Analysis, which is incorporated by reference into these Notes to Consolidated Financial Statements. The following table provides the components of the Company’s regulatory capital at December 31: (Dollars in Millions) 2018 2017 Basel III standardized approach: Common shareholders’ equity $ 45,045 $ 43,621 Less intangible assets Goodwill (net of deferred tax liability) (8,549 ) (8,613 ) Other disallowed intangible assets (601 ) (466 ) Other (a) (1,171 ) (173 ) Total common equity tier 1 capital 34,724 34,369 Qualifying preferred stock 5,984 5,419 Noncontrolling interests eligible for tier 1 capital 36 117 Other (b) (3 ) (99 ) Total tier 1 capital 40,741 39,806 Eligible portion of allowance for credit losses 4,441 4,417 Subordinated debt and noncontrolling interests eligible for tier 2 capital 2,996 3,280 Total tier 2 capital 7,437 7,697 Total risk-based capital $ 48,178 $ 47,503 Risk-weighted assets $ 381,661 $ 367,771 Basel III advanced approaches: Common shareholders’ equity $ 45,045 $ 43,621 Less intangible assets Goodwill (net of deferred tax liability) (8,549 ) (8,613 ) Other disallowed intangible assets (601 ) (466 ) Other (a) (1,171 ) (173 ) Total common equity tier 1 capital 34,724 34,369 Qualifying preferred stock 5,984 5,419 Noncontrolling interests eligible for tier 1 capital 36 117 Other (b) (3 ) (99 ) Total tier 1 capital 40,741 39,806 Eligible portion of allowance for credit losses 1,399 1,391 Subordinated debt and noncontrolling interests eligible for tier 2 capital 2,996 3,280 Total tier 2 capital 4,395 4,671 Total risk-based capital $ 45,136 $ 44,477 Risk-weighted assets $ 295,002 $ 287,211 (a) Includes the impact of items included in other comprehensive income (loss), such as unrealized gains (losses) on available-for-sale (b) Includes the remaining portion of deferred tax assets not eligible for total tier 1 capital. Noncontrolling interests principally represent third party investors’ interests in consolidated entities, including preferred stock of consolidated subsidiaries. During 2006, the Company’s banking subsidiary formed USB Realty Corp., a real estate investment trust, for the purpose of issuing 5,000 shares of Fixed-to-Floating Non-cumulative The Series A Preferred Securities will be redeemable, in whole or in part, at the option of USB Realty Corp. on each fifth anniversary after the dividend payment date occurring in January 2012. Any redemption will be subject to the approval of the Office of the Comptroller of the Currency. During 2016, the Company purchased 500 shares of the Series A Preferred Securities held by third party investors at an amount below their carrying amount, recording a net gain of $9 million directly to retained earnings. As of December 31, 2018, 4,500 shares of the Series A Preferred Securities remain outstanding.

Earnings Per Share

Earnings Per Share	12 Months Ended
	Dec. 31, 2018
Earnings Per Share [Abstract]
Earnings Per Share	NOTE 15 Earnings Per Share The components of earnings per share were: Year Ended December 31 (Dollars and Shares in Millions, Except Per Share Data) 2018 2017 2016 Net income attributable to U.S. Bancorp $ 7,096 $ 6,218 $ 5,888 Preferred dividends (282 ) (267 ) (281 ) Impact of preferred stock redemption (a) – (10 ) – Impact of the purchase of noncontrolling interests (b) – – 9 Earnings allocated to participating stock awards (30 ) (28 ) (27 ) Net income applicable to U.S. Bancorp common shareholders $ 6,784 $ 5,913 $ 5,589 Average common shares outstanding 1,634 1,677 1,718 Net effect of the exercise and assumed purchase of stock awards 4 6 6 Average diluted common shares outstanding 1,638 1,683 1,724 Earnings per common share $ 4.15 $ 3.53 $ 3.25 Diluted earnings per common share $ 4.14 $ 3.51 $ 3.24 (a) Represents stock issuance costs originally recorded in preferred stock upon the issuance of the Company’s Series G Preferred Stock that were reclassified to retained earnings on the date the Company announced its intent to redeem the outstanding shares. (b) Represents the difference between the carrying amount and amount paid by the Company to purchase third party investor holdings of the preferred stock of USB Realty Corp, a consolidated subsidiary of the Company. Options outstanding at December 31, 2018, 2017 and 2016, to purchase 1 million common shares, were not included in the computation of diluted earnings per share for the years ended December 31, 2018, 2017 and 2016, because they were antidilutive.

Employee Benefits

Employee Benefits	12 Months Ended
	Dec. 31, 2018
Retirement Benefits [Abstract]
Employee Benefits	NOTE 16 Employee Benefits Employee Retirement Savings Plan Pension Plans In general, the Company’s qualified pension plan’s funding objectives include maintaining a funded status sufficient to meet participant benefit obligations over time while reducing long-term funding requirements and pension costs. The Company has an established process for evaluating the plan, its performance and significant plan assumptions, including the assumed discount rate and the long-term rate of return (“LTROR”). Annually, the Company’s Compensation and Human Resources Committee (the “Committee”), assisted by outside consultants, evaluates plan objectives, funding policies and plan investment policies considering its long-term investment time horizon and asset allocation strategies. The process also evaluates significant plan assumptions. Although plan assumptions are established annually, the Company may update its analysis on an interim basis in order to be responsive to significant events that occur during the year, such as plan mergers and amendments. The Company’s funding policy is to contribute amounts to its plan sufficient to meet the minimum funding requirements of the Employee Retirement Income Security Act of 1974, as amended by the Pension Protection Act, plus such additional amounts as the Company determines to be appropriate. The Company did not contribute to its qualified pension plan in 2018 and contributed $1.2 billion in 2017. The Company does not expect to contribute to the plan in 2019. Any contributions made to the qualified plan are invested in accordance with established investment policies and asset allocation strategies. In addition to the funded qualified pension plan, the Company maintains a non-qualified non-qualified Postretirement Welfare Plan The following table summarizes the changes in benefit obligations and plan assets for the years ended December 31, and the funded status and amounts recognized in the Consolidated Balance Sheet at December 31 for the retirement plans: Pension Plans Postretirement (Dollars in Millions) 2018 2017 2018 2017 Change In Projected Benefit Obligation (a) Benefit obligation at beginning of measurement period $ 5,720 $ 5,073 $ 68 $ 75 Service cost 208 187 – – Interest cost 224 220 2 2 Participants’ contributions – – 8 8 Actuarial loss (gain) (440 ) 430 (7 ) (1 ) Lump sum settlements (50 ) (45 ) – – Benefit payments (155 ) (145 ) (18 ) (18 ) Federal subsidy on benefits paid – – 1 2 Benefit obligation at end of measurement period (b) $ 5,507 $ 5,720 $ 54 $ 68 Change In Fair Value Of Plan Assets (c) Fair value at beginning of measurement period $ 5,482 $ 3,769 $ 87 $ 82 Actual return on plan assets (365 ) 665 – 10 Employer contributions 24 1,238 5 5 Participants’ contributions – – 7 8 Lump sum settlements (50 ) (45 ) – – Benefit payments (155 ) (145 ) (18 ) (18 ) Fair value at end of measurement period $ 4,936 $ 5,482 $ 81 $ 87 Funded (Unfunded) Status $ (571 ) $ (238 ) $ 27 $ 19 Components Of The Consolidated Balance Sheet Noncurrent benefit asset $ – $ 270 $ 26 $ 19 Current benefit liability (23 ) (23 ) – – Noncurrent benefit liability (548 ) (485 ) – – Recognized amount $ (571 ) $ (238 ) $ 26 $ 19 Accumulated Other Comprehensive Income (Loss), Pretax Net actuarial gain (loss) $ (1,981 ) $ (1,822 ) $ 66 $ 68 Net prior service credit (cost) – – 18 22 Recognized amount $ (1,981 ) $ (1,822 ) $ 84 $ 90 (a) The decrease and the increase in the projected benefit obligation for 2018 and 2017, respectively, were primarily due to discount rate changes. (b) At December 31, 2018 and 2017, the accumulated benefit obligation for all pension plans was $5.0 billion and $5.2 billion, respectively. (c) The decrease and the increase in the fair value of plan assets for 2018 and 2017, respectively, were primarily due to market conditions, as well as higher employer contributions in 2017. The following table provides information for pension plans with benefit obligations in excess of plan assets at December 31: (Dollars in Millions) 2018 2017 Pension Plans with Projected Benefit Obligations in Excess of Plan Assets Projected benefit obligation $ 5,507 $ 508 Fair value of plan assets 4,936 – Pension Plans with Accumulated Benefit Obligations in Excess of Plan Assets Accumulated benefit obligation $ 467 $ 485 Fair value of plan assets – – The following table sets forth the components of net periodic benefit cost and other amounts recognized in accumulated other comprehensive income (loss) for the years ended December 31 for the retirement plans: Pension Plans Postretirement Welfare Plan (Dollars in Millions) 2018 2017 2016 2018 2017 2016 Components Of Net Periodic Benefit Cost Service cost $ 208 $ 187 $ 177 $ – $ – $ – Interest cost 224 220 211 2 2 3 Expected return on plan assets (379 ) (284 ) (266 ) (3 ) (3 ) (1 ) Prior service cost (credit) and transition obligation (asset) amortization – (2 ) (5 ) (3 ) (3 ) (3 ) Actuarial loss (gain) amortization 146 127 175 (6 ) (5 ) (4 ) Net periodic benefit cost $ 199 $ 248 $ 292 $ (10 ) $ (9 ) $ (5 ) Other Changes In Plan Assets And Benefit Obligations Recognized In Other Comprehensive Income (Loss) Net actuarial gain (loss) arising during the year $ (305 ) $ (48 ) $ (270 ) $ 3 $ 7 $ 15 Net actuarial loss (gain) amortized during the year 146 127 175 (6 ) (5 ) (4 ) Net prior service cost (credit) and transition obligation (asset) amortized during the year – (2 ) (5 ) (3 ) (3 ) (3 ) Total recognized in other comprehensive income (loss) $ (159 ) $ 77 $ (100 ) $ (6 ) $ (1 ) $ 8 Total recognized in net periodic benefit cost and other comprehensive income (loss) $ (358 ) $ (171 ) $ (392 ) $ 4 $ 8 $ 13 The following table sets forth weighted average assumptions used to determine the projected benefit obligations at December 31: Pension Plans Postretirement (Dollars in Millions) 2018 2017 2018 2017 Discount rate (a) 4.45 % 3.84 % 4.05 % 3.34 % Cash balance interest crediting rate 3.00 3.00 * * Rate of compensation increase (b) 3.52 3.56 * * Health care cost trend rate (c) Prior to age 65 6.50 % 6.75 % After age 65 10.00 % 6.75 % (a) The discount rates were developed using a cash flow matching bond model with a modified duration for the qualified pension plan, non-qualified (b) Determined on an active liability-weighted basis. (c) The 2018 and 2017 pre-65 post-65 * Not applicable The following table sets forth weighted average assumptions used to determine net periodic benefit cost for the years ended December 31: Pension Plans Postretirement Welfare Plan (Dollars in Millions) 2018 2017 2016 2018 2017 2016 Discount rate (a) 3.84 % 4.27 % 4.45 % 3.34 % 3.57 % 3.59 % Cash balance interest crediting rate 3.00 3.00 3.00 * * * Expected return on plan assets (b) 7.25 7.25 7.50 3.50 3.50 1.50 Rate of compensation increase (c) 3.56 3.58 4.06 * * * Health care cost trend rate (d) Prior to age 65 6.75 % 7.00 % 6.50 % After age 65 6.75 7.00 6.50 (a) The discount rates were developed using a cash flow matching bond model with a modified duration for the qualified pension plan, non-qualified (b) With the help of an independent pension consultant, the Company considers several sources when developing its expected long-term rates of return on plan assets assumptions, including, but not limited to, past returns and estimates of future returns given the plans’ asset allocation, economic conditions, and peer group LTROR information. The Company determines its expected long-term rates of return reflecting current economic conditions and plan assets. (c) Determined on an active liability weighted basis. (d) The 2018 and 2017 pre-65 post-65 pre-65 post-65 * Not applicable Investment Policies and Asset Allocation Generally, based on historical performance of the various investment asset classes, investments in equities have outperformed other investment classes but are subject to higher volatility. In an effort to minimize volatility, while recognizing the long-term up-side mid-small In accordance with authoritative accounting guidance, the Company groups plan assets into a three-level hierarchy for valuation techniques used to measure their fair value based on whether the valuation inputs are observable or unobservable. Refer to Note 21 for further discussion on these levels. The assets of the qualified pension plan include investments in equity and U.S. Treasury securities whose fair values are determined based on quoted prices in active markets and are classified within Level 1 of the fair value hierarchy. The qualified pension plan also invests in U.S. agency, corporate and municipal debt securities, which are all valued based on observable market prices or data by third party pricing services, and mutual funds which are valued based on quoted net asset values provided by the trustee of the fund; these assets are classified as Level 2. Additionally, the qualified pension plan invests in certain assets that are valued based on net asset values as a practical expedient, including investments in collective investment funds, hedge funds, and private equity funds; the net asset values are provided by the fund trustee or administrator and are not classified in the fair value hierarchy. The following table summarizes plan investment assets measured at fair value at December 31: Qualified Pension Plan Welfare Plan 2018 2017 2018 2017 (Dollars in Millions) Level 1 Level 2 Level 3 Total Level 1 Level 2 Level 3 Total Level 1 Level 1 Cash and cash equivalents $ 54 $ – $ – $ 54 $ 727 (a) $ – $ – $ 727 $ 40 $ 36 Debt securities 631 904 – 1,535 517 723 – 1,240 – – Corporate stock Real estate equity securities (b) 109 – – 109 216 – – 216 – – Mutual funds Debt securities – 295 – 295 – 205 – 205 – – Emerging markets equity securities – 113 – 113 – 120 – 120 – – Other – – 3 3 – – 2 2 – – $ 794 $ 1,312 $ 3 2,109 $ 1,460 $ 1,048 $ 2 2,510 40 36 Plan investment assets not classified in fair value hierarchy (c) Collective investment funds Domestic equity securities 1,183 1,327 23 29 Mid-small (d) 340 346 – – International equity securities 643 934 14 22 Real estate securities 146 – – – Hedge funds (e) 290 200 – – Private equity funds (f) 225 165 – – Total plan investment assets at fair value $ 4,936 $ 5,482 $ 77 $ 87 (a) Includes an employer contribution made in late 2017 which was invested in various asset classes subsequent to December 31, 2017. (b) At December 31, 2018 and 2017, securities included $56 million and $105 million in domestic equities, respectively, and $53 million and $111 million in international equities, respectively. (c) These investments are valued based on net asset value per share as a practical expedient; fair values are provided to reconcile to total investment assets of the plans at fair value. (d) At December 31, 2018 and 2017, securities included $340 million and $346 million in domestic equities, respectively. (e) This category consists of several investment strategies diversified across several hedge fund managers. (f) This category consists of several investment strategies diversified across several private equity fund managers. The following table summarizes the changes in fair value for qualified pension plan investment assets measured at fair value using significant unobservable inputs (Level 3) for the years ended December 31: 2018 2017 2016 (Dollars in Millions) Other Other Other Balance at beginning of period $ 2 $ 1 $ 1 Purchases, sales, and settlements, net 1 1 – Balance at end of period $ 3 $ 2 $ 1 The following benefit payments are expected to be paid from the retirement plans for the years ended December 31: (Dollars in Millions) Pension Postretirement (a) Medicare 2019 $ 216 $ 8 $ 1 2020 233 8 1 2021 252 7 1 2022 268 7 1 2023 285 6 1 2024-2028 1,692 24 2 (a) Net of expected retiree contributions and before Medicare Part D subsidy.

Stock-Based Compensation

Stock-Based Compensation	12 Months Ended
	Dec. 31, 2018
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Stock-Based Compensation	NOTE 17 Stock-Based Compensation As part of its employee and director compensation programs, the Company currently may grant certain stock awards under the provisions of its stock incentive plan. The plan provides for grants of options to purchase shares of common stock at a fixed price equal to the fair value of the underlying stock at the date of grant. Option grants are generally exercisable up to ten years from the date of grant. In addition, the plan provides for grants of shares of common stock or stock units that are subject to restriction on transfer prior to vesting. Most stock and unit awards vest over three to five years and are subject to forfeiture if certain vesting requirements are not met. Stock incentive plans of acquired companies are generally terminated at the merger closing dates. Participants under such plans receive the Company’s common stock, or options to buy the Company’s common stock, based on the conversion terms of the various merger agreements. At December 31, 2018, there were 35 million shares (subject to adjustment for forfeitures) available for grant under the Company’s stock incentive plan. Stock Option Awards The following is a summary of stock options outstanding and exercised under prior and existing stock incentive plans of the Company: Year Ended December 31 Stock Weighted- Weighted-Average Aggregate 2018 Number outstanding at beginning of period 12,668,467 $ 32.15 Granted (a) — — Exercised (3,443,494 ) 25.41 Cancelled (b) (109,963 ) 46.72 Number outstanding at end of period (c) 9,115,010 $ 34.52 4.3 $ 102 Exercisable at end of period 7,372,036 $ 31.61 3.5 $ 104 2017 Number outstanding at beginning of period 17,059,241 $ 29.95 Granted 1,066,188 54.97 Exercised (5,389,741 ) 29.58 Cancelled (b) (67,221 ) 43.31 Number outstanding at end of period (c) 12,668,467 $ 32.15 4.5 $ 272 Exercisable at end of period 9,647,937 $ 27.87 3.3 $ 248 2016 Number outstanding at beginning of period 25,725,708 $ 29.82 Granted 1,644,288 39.50 Exercised (10,163,668 ) 31.09 Cancelled (b) (147,087 ) 35.18 Number outstanding at end of period (c) 17,059,241 $ 29.95 4.1 $ 365 Exercisable at end of period 13,856,142 $ 27.53 3.1 $ 330 (a) The Company did not grant any stock option awards during 2018. (b) Options cancelled include both non-vested (c) Outstanding options include stock-based awards that may be forfeited in future periods. The impact of the estimated forfeitures is reflected in compensation expense. Stock-based compensation expense is based on the estimated fair value of the award at the date of grant or modification. The fair value of each option award is estimated on the date of grant using the Black-Scholes option-pricing model, requiring the use of subjective assumptions. Because employee stock options have characteristics that differ from those of traded options, including vesting provisions and trading limitations that impact their liquidity, the determined value used to measure compensation expense may vary from the actual fair value of the employee stock options. The following table includes the weighted-average estimated fair value of stock options granted and the assumptions utilized by the Company for newly issued grants for the years ended December 31, 2017 and 2016: Year Ended December 31 2017 2016 Estimated fair value $ 14.66 $ 10.28 Risk-free interest rates 2.0 % 1.3 % Dividend yield 2.6 % 2.6 % Stock volatility factor .35 .36 Expected life of options (in years) 5.5 5.5 Expected stock volatility is based on several factors including the historical volatility of the Company’s common stock, implied volatility determined from traded options and other factors. The Company uses historical data to estimate option exercises and employee terminations to estimate the expected life of options. The risk-free interest rate for the expected life of the options is based on the U.S. Treasury yield curve in effect on the date of grant. The expected dividend yield is based on the Company’s expected dividend yield over the life of the options. The following summarizes certain stock option activity of the Company: Year Ended December 31 (Dollars in Millions) 2018 2017 2016 Fair value of options vested $ 14 $ 13 $ 18 Intrinsic value of options exercised 97 127 138 Cash received from options exercised 87 159 316 Tax benefit realized from options exercised — 49 53 To satisfy option exercises, the Company predominantly uses treasury stock. Additional information regarding stock options outstanding as of December 31, 2018, is as follows: Outstanding Options Exercisable Options Range of Exercise Prices Shares Weighted- Weighted- Shares Weighted- $11.02—$20.00 684,748 0.1 $ 11.20 684,748 $ 11.20 $20.01—$25.00 856,259 1.2 23.84 856,259 23.84 $25.01—$30.00 2,711,719 2.6 28.65 2,711,719 28.65 $30.01—$35.00 700,487 4.0 33.98 700,487 33.98 $35.01—$40.00 1,415,509 7.1 39.49 669,718 39.49 $40.01—$45.00 1,737,831 5.6 42.41 1,490,255 42.10 $45.01—$50.00 — — — — — $50.01—$55.01 1,008,457 8.1 54.97 258,850 54.97 9,115,010 4.3 $ 34.52 7,372,036 $ 31.61 Restricted Stock and Unit Awards A summary of the status of the Company’s restricted shares of stock and unit awards is presented below: 2018 2017 2016 Year Ended December 31 Shares Weighted- Value Shares Weighted- Value Shares Weighted- Value Outstanding at beginning of period 7,446,955 $ 44.49 8,265,507 $ 39.50 6,894,831 $ 38.44 Granted 3,213,023 55.03 2,850,927 54.45 4,879,421 39.65 Vested (3,373,323 ) 46.42 (3,295,376 ) 40.66 (3,069,035 ) 37.25 Cancelled (567,357 ) 49.07 (374,103 ) 43.91 (439,710 ) 40.18 Outstanding at end of period 6,719,298 $ 48.17 7,446,955 $ 44.49 8,265,507 $ 39.50 The total fair value of shares vested was $182 million, $180 million and $128 million for the years ended December 31, 2018, 2017 and 2016, respectively. Stock-based compensation expense was $174 million, $163 million and $150 million for the years ended December 31, 2018, 2017 and 2016, respectively. On an after-tax

Income Taxes

Income Taxes	12 Months Ended
	Dec. 31, 2018
Income Tax Disclosure [Abstract]
Income Taxes	NOTE 18 Income Taxes The components of income tax expense were: Year Ended December 31 (Dollars in Millions) 2018 2017 2016 Federal Current $ 1,287 $ 2,086 $ 2,585 Deferred (148 ) (1,180 ) (711 ) Federal income tax 1,139 906 1,874 State Current 395 201 337 Deferred 20 157 (50 ) State income tax 415 358 287 Total income tax provision $ 1,554 $ 1,264 $ 2,161 A reconciliation of expected income tax expense at the federal statutory rate of 21 percent for 2018 and 35 percent for 2017 and 2016 to the Company’s applicable income tax expense follows: Year Ended December 31 (Dollars in Millions) 2018 2017 2016 Tax at statutory rate $ 1,822 $ 2,631 $ 2,837 State income tax, at statutory rates, net of federal tax benefit 352 281 244 Tax effect of Revaluation of tax related assets and liabilities (a) — (910 ) — Tax credits and benefits, net of related expenses (513 ) (774 ) (710 ) Tax-exempt (130 ) (200 ) (196 ) Noncontrolling interests (6 ) (12 ) (20 ) Nondeductible legal and regulatory expenses 52 213 30 Other items (b) (23 ) 35 (24 ) Applicable income taxes $ 1,554 $ 1,264 $ 2,161 (a) In late 2017, tax legislation was enacted that, among other provisions, reduced the federal statutory rate for corporations from 35 percent to 21 percent effective in 2018. In accordance with generally accepted accounting principles, the Company revalued its deferred tax assets and liabilities at December 31, 2017, resulting in an estimated net tax benefit of $910 million, which the Company recorded in 2017. (b) Includes excess tax benefits associated with stock-based compensation and adjustments related to deferred tax assets and liabilities. The tax effects of fair value adjustments on securities available-for-sale, In preparing its tax returns, the Company is required to interpret complex tax laws and regulations and utilize income and cost allocation methods to determine its taxable income. On an ongoing basis, the Company is subject to examinations by federal, state, local and foreign taxing authorities that may give rise to differing interpretations of these complex laws, regulations and methods. Due to the nature of the examination process, it generally takes years before these examinations are completed and matters are resolved. Federal tax examinations for all years ending through December 31, 2010, and years ending December 31, 2013 and December 31, 2014 are completed and resolved. The Company’s tax returns for the years ended December 31, 2011, 2012, 2015 and 2016 are under examination by the Internal Revenue Service. The years open to examination by state and local government authorities vary by jurisdiction. A reconciliation of the changes in the federal, state and foreign unrecognized tax position balances are summarized as follows: Year Ended December 31 (Dollars in Millions) 2018 2017 2016 Balance at beginning of period $ 287 $ 302 $ 243 Additions (reductions) for tax positions taken in prior years 93 3 57 Additions for tax positions taken in the current year 10 9 12 Exam resolutions (51 ) (23 ) (6 ) Statute expirations (4 ) (4 ) (4 ) Balance at end of period $ 335 $ 287 $ 302 The total amount of unrecognized tax positions that, if recognized, would impact the effective income tax rate as of December 31, 2018, 2017 and 2016, were $273 million, $265 million and $234 million, respectively. The Company classifies interest and penalties related to unrecognized tax positions as a component of income tax expense. At December 31, 2018, the Company’s unrecognized tax position balance included $28 million of accrued interest and penalties. During the years ended December 31, 2018, 2017 and 2016, the Company recorded approximately $(25) million, $16 million and $7 million, respectively, in interest and penalties on unrecognized tax positions. Deferred income tax assets and liabilities reflect the tax effect of estimated temporary differences between the carrying amounts of assets and liabilities for financial reporting purposes and the amounts used for the same items for income tax reporting purposes. The significant components of the Company’s net deferred tax asset (liability) follows: At December 31 (Dollars in Millions) 2018 2017 Deferred Tax Assets Federal, state and foreign net operating loss and credit carryforwards $ 2,699 $ 2,249 Allowance for credit losses 1,141 1,116 Accrued expenses 508 468 Securities available-for-sale 278 111 Pension and postretirement benefits 85 — Stock compensation 79 79 Partnerships and other investment assets 69 252 Fixed assets 58 — Other deferred tax assets, net 268 215 Gross deferred tax assets 5,185 4,490 Deferred Tax Liabilities Leasing activities (2,652 ) (2,277 ) Goodwill and other intangible assets (703 ) (693 ) Mortgage servicing rights (642 ) (604 ) Loans (168 ) (160 ) Pension and postretirement benefits — (20 ) Fixed assets — (4 ) Other deferred tax liabilities, net (102 ) (131 ) Gross deferred tax liabilities (4,267 ) (3,889 ) Valuation allowance (109 ) (128 ) Net Deferred Tax Asset (Liability) $ 809 $ 473 The Company has approximately $1.9 billion of federal, state and foreign net operating loss carryforwards which expire at various times beginning in 2019. A substantial portion of these carryforwards relate to state-only net operating losses, which are subject to a full valuation allowance as they are not expected to be realized within the carryforward period. Management has determined it is more likely than not the other net deferred tax assets could be realized through carry back to taxable income in prior years, future reversals of existing taxable temporary differences and future taxable income. In addition, the Company has $2.6 billion of federal credit carryforwards which expire at various times through 2038 which are not subject to a valuation allowance as management believes that it is more likely than not that the credits will be utilized within the carryforward period. At December 31, 2018, retained earnings included approximately $102 million of base year reserves of acquired thrift institutions, for which no deferred federal income tax liability has been recognized. These base year reserves would be recaptured if certain subsidiaries of the Company cease to qualify as a bank for federal income tax purposes. The base year reserves also remain subject to income tax penalty provisions that, in general, require recapture upon certain stock redemptions of, and excess distributions to, stockholders.

Derivative Instruments

Derivative Instruments	12 Months Ended
	Dec. 31, 2018
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Derivative Instruments	NOTE 19 Derivative Instruments In the ordinary course of business, the Company enters into derivative transactions to manage various risks and to accommodate the business requirements of its customers. The Company recognizes all derivatives on the Consolidated Balance Sheet at fair value in other assets or in other liabilities. On the date the Company enters into a derivative contract, the derivative is designated as either a fair value hedge, cash flow hedge, net investment hedge, or a designation is not made as it is a customer-related transaction, an economic hedge for asset/liability risk management purposes or another stand-alone derivative created through the Company’s operations (“free-standing derivative”). When a derivative is designated as a fair value, cash flow or net investment hedge, the Company performs an assessment, at inception and, at a minimum, quarterly thereafter, to determine the effectiveness of the derivative in offsetting changes in the value or cash flows of the hedged item(s). Fair Value Hedges Cash Flow Hedges (net-of-tax) (net-of-tax) (net-of-tax). Net Investment Hedges non-derivative non-derivative Other Derivative Positions to-be-announced non-derivative For additional information on the Company’s purpose for entering into derivative transactions and its overall risk management strategies, refer to “Management Discussion and Analysis – Use of Derivatives to Manage Interest Rate and Other Risks”, which is incorporated by reference into these Notes to Consolidated Financial Statements. The following table summarizes the asset and liability management derivative positions of the Company: Asset Derivatives Liability Derivatives (Dollars in Millions) Notional Fair Weighted-Average In Years Notional Fair Weighted-Average In Years December 31, 2018 Cash flow hedges Interest rate contracts Pay fixed/receive floating swaps $ 7,422 $ 8 3.11 $ 4,320 $ – 1.77 Net investment hedges Foreign exchange forward contracts 209 5 .05 223 1 .05 Other economic hedges Interest rate contracts Futures and forwards Buy 2,839 27 .07 1,140 5 .05 Sell 994 3 .06 13,968 30 .72 Options Purchased 5,080 88 10.77 – – – Written 584 16 .09 3 – .09 Receive fixed/pay floating swaps 3,605 – 14.80 4,333 – 6.97 Pay fixed/receive floating swaps 4,333 – 6.97 1,132 – 7.64 Foreign exchange forward contracts 549 7 .03 75 1 .05 Equity contracts 19 1 .82 104 2 .45 Credit contracts 2,318 – 3.50 4,923 2 4.04 Other (a) 1 – .01 1,458 84 1.50 Total $ 27,953 $ 155 $ 31,679 $ 125 December 31, 2017 Fair value hedges Interest rate contracts Receive fixed/pay floating swaps $ 1,000 $ 28 6.70 $ 3,600 $ 16 1.55 Cash flow hedges Interest rate contracts Pay fixed/receive floating swaps 3,772 5 6.73 – – – Net investment hedges Foreign exchange forward contracts – – – 373 8 .05 Other economic hedges Interest rate contracts Futures and forwards Buy 1,632 7 .10 1,326 2 .04 Sell 15,291 10 .89 4,511 10 .03 Options Purchased 4,985 65 7.57 – – – Written 1,285 21 .10 5 – .05 Receive fixed/pay floating swaps 2,019 5 16.49 5,469 – 8.43 Pay fixed/receive floating swaps 4,844 21 7.69 46 1 6.70 Foreign exchange forward contracts 147 1 .02 669 8 .04 Equity contracts 45 – 1.10 88 1 .58 Credit contracts 1,559 – 3.41 3,779 1 3.16 Other (a) – – – 1,164 125 2.50 Total $ 36,579 $ 163 $ 21,030 $ 172 (a) Includes derivative liability swap agreements related to the sale of a portion of the Company’s Class B common shares of Visa Inc. The Visa swap agreements had a total notional value, fair value and weighted average remaining maturity of $1.5 billion, $84 million and 1.50 years at December 31, 2018, respectively, compared to $1.2 billion, $125 million and 2.50 years at December 31, 2017, respectively. In addition, includes short-term underwriting purchase and sale commitments with total asset and liability notional values of $1 million at December 31, 2018. The following table summarizes the customer-related derivative positions of the Company: Asset Derivatives Liability Derivatives (Dollars in Millions) Notional Fair Weighted-Average Notional Fair Weighted-Average December 31, 2018 Interest rate contracts Receive fixed/pay floating swaps $ 44,976 $ 755 6.49 $ 62,597 $ 456 4.28 Pay fixed/receive floating swaps 63,825 289 4.07 45,129 422 6.16 Options Purchased 41,711 51 1.54 1,940 30 1.98 Written 2,060 32 2.07 39,538 51 1.44 Futures Buy 460 – 1.58 – – – Sell – – – 6,190 1 .59 Foreign exchange rate contracts Forwards, spots and swaps 26,210 681 .91 25,571 663 .88 Options Purchased 2,779 47 .75 – – – Written – – – 2,779 47 .75 Total $ 182,021 $ 1,855 $ 183,744 $ 1,670 December 31, 2017 Interest rate contracts Receive fixed/pay floating swaps $ 28,681 $ 679 5.71 $ 59,990 $ 840 4.27 Pay fixed/receive floating swaps 63,038 860 4.20 25,093 602 5.76 Options Purchased 29,091 22 1.61 880 14 4.24 Written 880 15 4.24 27,056 20 1.50 Futures Sell 7,007 4 1.21 – – – Foreign exchange rate contracts Forwards, spots and swaps 24,099 656 .81 23,440 636 .83 Options Purchased 4,026 83 1.20 – – – Written – – – 4,026 83 1.20 Total $ 156,822 $ 2,319 $ 140,485 $ 2,195 The table below shows the effective portion of the gains (losses) recognized in other comprehensive income (loss) and the gains (losses) reclassified from other comprehensive income (loss) into earnings (net-of-tax) Gains (Losses) Recognized in Other Gains (Losses) Reclassified from (Dollars in Millions) 2018 2017 2016 2018 2017 2016 Asset and Liability Management Positions Cash flow hedges Interest rate contracts $ 29 $ (3 ) $ 46 $ 3 $ (19 ) $ (76 ) Net investment hedges Foreign exchange forward contracts 39 (56 ) 33 – – – Non-derivative 32 (46 ) – – – – Note: The Company does not exclude components from effectiveness testing for cash flow and net investment hedges. The table below shows the effect of fair value and cash flow hedge accounting on the Consolidated Statement of Income for the years ended December 31: Other Noninterest Income Interest Expense (Dollars in Millions) 2018 2017 2016 2018 2017 2016 Total amount of income and expense line items presented in the Consolidated Statement of Income in which the effects of fair value or cash flow hedges are recorded $ 910 $ 774 $ 911 $ 3,254 $ 1,966 $ 1,468 Asset and Liability Management Positions Fair value hedges Interest rate contract derivatives – (28 ) (31 ) 5 – – Hedged items – 28 31 (5 ) – – Cash Flow hedges Interest rate contract derivatives – – – (5 ) 30 124 Note: The Company does not exclude components from effectiveness testing for fair value and cash flow hedges. The Company did not reclassify gains or losses into earnings as a result of the discontinuance of cash flow hedges during the years ended December 31, 2018, 2017 and 2016. The table below shows cumulative hedging adjustments and the carrying amount of assets (liabilities) designated in fair value hedges: Carrying Amount of the Cumulative Hedging At December 31 (Dollars in Millions) 2018 2017 2018 2017 Line Item in the Consolidated Balance Sheet Long-term Debt $ – $ 4,584 $ (27 ) $ (8 ) (a) The cumulative hedging adjustment at December 31, 2018 relates to discontinued hedging relationships. The Company did not have any hedging adjustments for discontinued fair value hedges at December 31, 2017. The table below shows the gains (losses) recognized in earnings for other economic hedges and the customer-related positions for the years ended December 31: (Dollars in Millions) Location of Gains (Losses) 2018 2017 2016 Asset and Liability Management Positions Other economic hedges Interest rate contracts Futures and forwards Mortgage banking revenue $ 110 $ 24 $ 101 Purchased and written options Mortgage banking revenue 188 237 331 Receive fixed/pay floating swaps Mortgage banking revenue 61 255 226 Pay fixed/receive floating swaps Mortgage banking revenue (172 ) (220 ) (140 ) Foreign exchange forward contracts Other noninterest income 39 (69 ) (14 ) Equity contracts Compensation expense (4 ) 1 1 Credit contracts Other noninterest income 2 3 1 Other Other noninterest income 2 (1 ) (39 ) Customer-Related Positions Interest rate contracts Receive fixed/pay floating swaps Commercial products revenue (192 ) (876 ) (708 ) Pay fixed/receive floating swaps Commercial products revenue 239 943 769 Purchased and written options Commercial products revenue 2 (24 ) (5 ) Futures Commercial products revenue 9 (3 ) (6 ) Foreign exchange rate contracts Forwards, spots and swaps Commercial products revenue 84 92 88 Purchased and written options Commercial products revenue – 2 (1 ) Derivatives are subject to credit risk associated with counterparties to the derivative contracts. The Company measures that credit risk using a credit valuation adjustment and includes it within the fair value of the derivative. The Company manages counterparty credit risk through diversification of its derivative positions among various counterparties, by entering into derivative positions that are centrally cleared through clearinghouses, by entering into master netting arrangements and, where possible, by requiring collateral arrangements. A master netting arrangement allows two counterparties, who have multiple derivative contracts with each other, the ability to net settle amounts under all contracts, including any related collateral, through a single payment and in a single currency. Collateral arrangements generally require the counterparty to deliver collateral (typically cash or U.S. Treasury and agency securities) equal to the Company’s net derivative receivable, subject to minimum transfer and credit rating requirements. The Company’s collateral arrangements are predominately bilateral and, therefore, contain provisions that require collateralization of the Company’s net liability derivative positions. Required collateral coverage is based on net liability thresholds and may be contingent upon the Company’s credit rating from two of the nationally recognized statistical rating organizations. If the Company’s credit rating were to fall below credit ratings thresholds established in the collateral arrangements, the counterparties to the derivatives could request immediate additional collateral coverage up to and including full collateral coverage for derivatives in a net liability position. The aggregate fair value of all derivatives under collateral arrangements that were in a net liability position at December 31, 2018, was $317 million. At December 31, 2018, the Company had $241 million of cash posted as collateral against this net liability position.

Netting Arrangements for Certai

Netting Arrangements for Certain Financial Instruments and Securities Financing Activities	12 Months Ended
	Dec. 31, 2018
Text Block [Abstract]
Netting Arrangements for Certain Financial Instruments and Securities Financing Activities	NOTE 20 Netting Arrangements for Certain Financial Instruments and Securities Financing Activities The Company’s derivative portfolio consists of bilateral over-the-counter over-the-counter As part of the Company’s treasury and broker-dealer operations, the Company executes transactions that are treated as securities sold under agreements to repurchase or securities purchased under agreements to resell, both of which are accounted for as collateralized financings. Securities sold under agreements to repurchase include repurchase agreements and securities loaned transactions. Securities purchased under agreements to resell include reverse repurchase agreements and securities borrowed transactions. For securities sold under agreements to repurchase, the Company records a liability for the cash received, which is included in short-term borrowings on the Consolidated Balance Sheet. For securities purchased under agreements to resell, the Company records a receivable for the cash paid, which is included in other assets on the Consolidated Balance Sheet. Securities transferred to counterparties under repurchase agreements and securities loaned transactions continue to be recognized on the Consolidated Balance Sheet, are measured at fair value, and are included in investment securities or other assets. Securities received from counterparties under reverse repurchase agreements and securities borrowed transactions are not recognized on the Consolidated Balance Sheet unless the counterparty defaults. The securities transferred under repurchase and reverse repurchase transactions typically are U.S. Treasury and agency securities, residential agency mortgage-backed securities or corporate debt securities. The securities loaned or borrowed typically are corporate debt securities traded by the Company’s broker-dealer subsidiary. In general, the securities transferred can be sold, repledged or otherwise used by the party in possession. No restrictions exist on the use of cash collateral by either party. Repurchase/reverse repurchase and securities loaned/borrowed transactions expose the Company to counterparty risk. The Company manages this risk by performing assessments, independent of business line managers, and establishing concentration limits on each counterparty. Additionally, these transactions include collateral arrangements that require the fair values of the underlying securities to be determined daily, resulting in cash being obtained or refunded to counterparties to maintain specified collateral levels. The following table summarizes the maturities by category of collateral pledged for repurchase agreements and securities loaned transactions: (Dollars in Millions) Overnight and Less Than 30-89 Days Greater Than Total December 31, 2018 Repurchase agreements U.S. Treasury and agencies $ 134 $ — $ — $ — $ 134 Residential agency mortgage-backed securities 565 — 945 470 1,980 Corporate debt securities 480 — — — 480 Total repurchase agreements 1,179 — 945 470 2,594 Securities loaned Corporate debt securities 227 — — — 227 Total securities loaned 227 — — — 227 Gross amount of recognized liabilities $ 1,406 $ — $ 945 $ 470 $ 2,821 December 31, 2017 Repurchase agreements U.S. Treasury and agencies $ 25 $ — $ — $ — $ 25 Residential agency mortgage-backed securities 644 30 — — 674 Corporate debt securities 104 — — — 104 Total repurchase agreements 773 30 — — 803 Securities loaned Corporate debt securities 111 — — — 111 Total securities loaned 111 — — — 111 Gross amount of recognized liabilities $ 884 $ 30 $ — $ — $ 914 The Company executes its derivative, repurchase/reverse repurchase and securities loaned/borrowed transactions under the respective industry standard agreements. These agreements include master netting arrangements that allow for multiple contracts executed with the same counterparty to be viewed as a single arrangement. This allows for net settlement of a single amount on a daily basis. In the event of default, the master netting arrangement provides for close-out The Company has elected to offset the assets and liabilities under netting arrangements for the balance sheet presentation of the majority of its derivative counterparties. The netting occurs at the counterparty level, and includes all assets and liabilities related to the derivative contracts, including those associated with cash collateral received or delivered. The Company has not elected to offset the assets and liabilities under netting arrangements for the balance sheet presentation of repurchase/reverse repurchase and securities loaned/borrowed transactions. The following tables provide information on the Company’s netting adjustments, and items not offset on the Consolidated Balance Sheet but available for offset in the event of default: Gross Gross Amounts (a) Net Amounts Gross Amounts Not Offset on the (Dollars in Millions) Financial (b) Collateral Received (c) Net Amount December 31, 2018 Derivative assets (d) $ 1,987 $ (942 ) $ 1,045 $ (106 ) $ (16 ) $ 923 Reverse repurchase agreements 205 — 205 (114 ) (91 ) — Securities borrowed 1,069 — 1,069 — (1,039 ) 30 Total $ 3,261 $ (942 ) $ 2,319 $ (220 ) $ (1,146 ) $ 953 December 31, 2017 Derivative assets (d) $ 1,759 $ (652 ) $ 1,107 $ (110 ) $ (5 ) $ 992 Reverse repurchase agreements 24 — 24 (24 ) — — Securities borrowed 923 — 923 — (896 ) 27 Total $ 2,706 $ (652 ) $ 2,054 $ (134 ) $ (901 ) $ 1,019 (a) Includes $236 million and $50 million of cash collateral related payables that were netted against derivative assets at December 31, 2018 and 2017, respectively. (b) For derivative assets this includes any derivative liability fair values that could be offset in the event of counterparty default; for reverse repurchase agreements this includes any repurchase agreement payables that could be offset in the event of counterparty default; for securities borrowed this includes any securities loaned payables that could be offset in the event of counterparty default. (c) Includes the fair value of securities received by the Company from the counterparty. These securities are not included on the Consolidated Balance Sheet unless the counterparty defaults. (d) Excludes $23 million and $723 million at December 31, 2018 and 2017, respectively, of derivative assets not subject to netting arrangements. Gross Gross Amounts (a) Net Amounts Gross Amounts Not Offset on (Dollars in Millions) Financial (b) Collateral Pledged (c) Net December 31, 2018 Derivative liabilities (d) $ 1,710 $ (946 ) $ 764 $ (106 ) $ — $ 658 Repurchase agreements 2,594 — 2,594 (114 ) (2,480 ) — Securities loaned 227 — 227 — (224 ) 3 Total $ 4,531 $ (946 ) $ 3,585 $ (220 ) $ (2,704 ) $ 661 December 31, 2017 Derivative liabilities (d) $ 1,629 $ (1,130 ) $ 499 $ (110 ) $ — $ 389 Repurchase agreements 803 — 803 (24 ) (779 ) — Securities loaned 111 — 111 — (110 ) 1 Total $ 2,543 $ (1,130 ) $ 1,413 $ (134 ) $ (889 ) $ 390 (a) Includes $240 million and $528 million of cash collateral related receivables that were netted against derivative liabilities at December 31, 2018 and 2017, respectively. (b) For derivative liabilities this includes any derivative asset fair values that could be offset in the event of counterparty default; for repurchase agreements this includes any reverse repurchase agreement receivables that could be offset in the event of counterparty default; for securities loaned this includes any securities borrowed receivables that could be offset in the event of counterparty default. (c) Includes the fair value of securities pledged by the Company to the counterparty. These securities are included on the Consolidated Balance Sheet unless the Company defaults. (d) Excludes $85 million and $738 million at December 31, 2018 and 2017, respectively, of derivative liabilities not subject to netting arrangements.

Fair Values of Assets and Liabi

Fair Values of Assets and Liabilities	12 Months Ended
	Dec. 31, 2018
Fair Value Disclosures [Abstract]
Fair Values of Assets and Liabilities	Fair Values of Assets and Liabilities The Company uses fair value measurements for the initial recording of certain assets and liabilities, periodic remeasurement of certain assets and liabilities, and disclosures. Derivatives, trading and available-for-sale lower-of-cost-or-fair 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. A fair value measurement reflects all of the assumptions that market participants would use in pricing the asset or liability, including assumptions about the risk inherent in a particular valuation technique, the effect of a restriction on the sale or use of an asset and the risk of nonperformance. The Company groups its assets and liabilities measured at fair value into a three-level hierarchy for valuation techniques used to measure financial assets and financial liabilities at fair value. This hierarchy is based on whether the valuation inputs are observable or unobservable. These levels are: – Level 1 — Quoted prices in active markets for identical assets or liabilities. Level 1 includes U.S. Treasury securities, as well as exchange-traded instruments. – Level 2 — Observable inputs other than Level 1 prices, such as quoted prices for similar assets or liabilities; quoted prices in markets that are not active; or other inputs that are observable or can be corroborated by observable market data for substantially the full term of the assets or liabilities. Level 2 includes debt securities that are traded less frequently than exchange-traded instruments and which are typically valued using third party pricing services; derivative contracts and other assets and liabilities, including securities, whose value is determined using a pricing model with inputs that are observable in the market or can be derived principally from or corroborated by observable market data; and MLHFS whose values are determined using quoted prices for similar assets or pricing models with inputs that are observable in the market or can be corroborated by observable market data. – Level 3 — Unobservable inputs that are supported by little or no market activity and that are significant to the fair value of the assets or liabilities. Level 3 assets and liabilities include financial instruments whose values are determined using pricing models, discounted cash flow methodologies, or similar techniques, as well as instruments for which the determination of fair value requires significant management judgment or estimation. This category includes MSRs and certain derivative contracts. Valuation Methodologies The valuation methodologies used by the Company to measure financial assets and liabilities at fair value are described below. In addition, the following section includes an indication of the level of the fair value hierarchy in which the assets or liabilities are classified. Where appropriate, the description includes information about the valuation models and key inputs to those models. During the years ended December 31, 2018, 2017 and 2016, there were no significant changes to the valuation techniques used by the Company to measure fair value. Available-For-Sale For other securities, quoted market prices may not be readily available for the specific securities. When possible, the Company determines fair value based on market observable information, including quoted market prices for similar securities, inactive transaction prices, and broker quotes. These securities are classified within Level 2 of the fair value hierarchy. Level 2 valuations are generally provided by a third party pricing service. Level 2 investment securities are predominantly agency mortgage-backed securities, certain other asset-backed securities, obligations of state and political subdivisions and agency debt securities. Mortgage Loans Held For Sale Mortgage Servicing Rights Derivatives over-the-counter Black-Derman-Toy The Company also has other derivative contracts that are created through its operations, including commitments to purchase and originate mortgage loans and swap agreements executed in conjunction with the sale of a portion of its Class B common shares of Visa Inc. (the “Visa swaps”). The mortgage loan commitments are valued by pricing models that include market observable and unobservable inputs, which result in the commitments being classified within Level 3 of the fair value hierarchy. The unobservable inputs include assumptions about the percentage of commitments that actually become a closed loan and the MSR value that is inherent in the underlying loan value. The Visa swaps require payments by either the Company or the purchaser of the Visa Inc. Class B common shares when there are changes in the conversion rate of the Visa Inc. Class B common shares to Visa Inc. Class A common shares, as well as quarterly payments to the purchaser based on specified terms of the agreements. Management reviews and updates the Visa swaps fair value in conjunction with its review of Visa Inc. related litigation contingencies, and the associated escrow funding. The expected litigation resolution impacts the Visa Inc. Class B common share to Visa Inc. Class A common share conversion rate, as well as the ultimate termination date for the Visa swaps. Accordingly, the Visa swaps are classified within Level 3. Refer to Note 22 for further information on the Visa Inc. restructuring and related card association litigation. Significant Unobservable Inputs of Level 3 Assets and Liabilities The following section provides information to facilitate an understanding of the uncertainty in the fair value measurements for the Company’s Level 3 assets and liabilities recorded at fair value on the Consolidated Balance Sheet. This section includes a description of the significant inputs used by the Company and a description of any interrelationships between these inputs. The discussion below excludes nonrecurring fair value measurements of collateral value used for impairment measures for loans and OREO. These valuations utilize third party appraisal or broker price opinions, and are classified as Level 3 due to the significant judgment involved. Mortgage Servicing Rights The following table shows the significant valuation assumption ranges for MSRs at December 31, 2018: Minimum Maximum Weighted (a) Expected prepayment 7 % 17 % 10 % Option adjusted spread 7 10 8 (a) Determined based on the relative fair value of the related mortgage loans serviced. Derivatives The significant unobservable inputs used in the fair value measurement of the Company’s derivative commitments to purchase and originate mortgage loans are the percentage of commitments that actually become a closed loan and the MSR value that is inherent in the underlying loan value. A significant increase in the rate of loans that close would have resulted in a larger derivative asset or liability. A significant increase in the inherent MSR value would have resulted in an increase in the derivative asset or a reduction in the derivative liability. Expected loan close rates and the inherent MSR values are directly impacted by changes in market rates and will generally move in the same direction as interest rates. The following table shows the significant valuation assumption ranges for the Company’s derivative commitments to purchase and originate mortgage loans at December 31, 2018: Minimum Maximum Weighted (a) Expected loan close rate 4 % 100 % 78 % Inherent MSR value (basis points per loan) 39 206 115 (a) Determined based on the relative fair value of the related mortgage loans. The significant unobservable input used in the fair value measurement of certain of the Company’s asset/liability and customer-related derivatives is the credit valuation adjustment related to the risk of counterparty nonperformance. A significant increase in the credit valuation adjustment would have resulted in a lower fair value measurement. A significant decrease in the credit valuation adjustment would have resulted in a higher fair value measurement. The credit valuation adjustment is impacted by changes in the Company’s assessment of the counterparty’s credit position. At December 31, 2018, the minimum, maximum and weighted average credit valuation adjustment as a percentage of the derivative contract fair value prior to adjustment was 0 percent, 92 percent and 1 percent, respectively. The significant unobservable inputs used in the fair value measurement of the Visa swaps are management’s estimate of the probability of certain litigation scenarios, and the timing of the resolution of the related litigation loss estimates in excess, or shortfall, of the Company’s proportional share of escrow funds. An increase in the loss estimate or a delay in the resolution of the related litigation would have resulted in an increase in the derivative liability. A decrease in the loss estimate or an acceleration of the resolution of the related litigation would have resulted in a decrease in the derivative liability. The following table summarizes the balances of assets and liabilities measured at fair value on a recurring basis: (Dollars in Millions) Level 1 Level 2 Level 3 Netting Total December 31, 2018 Available-for-sale U.S. Treasury and agencies $ 18,585 $ 672 $ – $ – $ 19,257 Mortgage-backed securities Residential agency – 39,752 – – 39,752 Commercial agency – 2 – – 2 Other asset-backed securities – 403 – – 403 Obligations of state and political subdivisions – 6,701 – – 6,701 Total available-for-sale 18,585 47,530 – – 66,115 Mortgage loans held for sale – 2,035 – – 2,035 Mortgage servicing rights – – 2,791 – 2,791 Derivative assets – 1,427 583 (942 ) 1,068 Other assets 392 1,273 – – 1,665 Total $ 18,977 $ 52,265 $ 3,374 $ (942 ) $ 73,674 Derivative liabilities $ 1 $ 1,291 $ 503 $ (946 ) $ 849 Short-term borrowings and other liabilities (a) 199 1,019 – – 1,218 Total $ 200 $ 2,310 $ 503 $ (946 ) $ 2,067 December 31, 2017 Available-for-sale U.S. Treasury and agencies $ 22,572 $ 729 $ – $ – $ 23,301 Mortgage-backed securities Residential agency – 38,031 – – 38,031 Commercial agency – 6 – – 6 Other asset-backed securities – 419 – – 419 Obligations of state and political subdivisions – 6,358 – – 6,358 Other 22 – – – 22 Total available-for-sale 22,594 45,543 – – 68,137 Mortgage loans held for sale – 3,534 – – 3,534 Mortgage servicing rights – – 2,645 – 2,645 Derivative assets 6 1,960 516 (652 ) 1,830 Other assets 154 1,163 – – 1,317 Total $ 22,754 $ 52,200 $ 3,161 $ (652 ) $ 77,463 Derivative liabilities $ – $ 1,958 $ 409 $ (1,130 ) $ 1,237 Short-term borrowings and other liabilities (a) 101 894 – – 995 Total $ 101 $ 2,852 $ 409 $ (1,130 ) $ 2,232 Note: Excluded from the table above are equity investments without readily determinable fair values. The Company has elected to carry these investments at historical cost, adjusted for impairment and any changes resulting from observable price changes for identical or similar investments of the issuer. The aggregate carrying amount of these equity investments was $86 million at December 31, 2018. The Company has not recorded impairments or adjustments for observable price changes on these equity investments during 2018 or on a cumulative basis. (a) Primarily represents the Company’s obligation on securities sold short required to be accounted for at fair value per applicable accounting guidance. The following table presents the changes in fair value for all assets and liabilities measured at fair value on a recurring basis using significant unobservable inputs (Level 3) for the years ended December 31: (Dollars in Millions) Beginning Net Gains Net Gains Purchases Sales Principal Issuances Settlements End of Net Change Held at End of Period 2018 Mortgage servicing rights $ 2,645 $ (232 ) (c) $ – $ 8 $ (27 ) $ – $ 397 (e) $ – $ 2,791 $ (232 ) (c) Net derivative assets and liabilities 107 21 (d) – 13 (41 ) – – (20 ) 80 34 (f) 2017 Available-for-sale Residential non-agency Prime (a) $ 242 $ – $ (2 ) $ – $ (234 ) $ (6 ) $ – $ – $ – $ – Non-prime (b) 195 – (17 ) – (175 ) (3 ) – – – – Other asset-backed securities 2 – – – (2 ) – – – – – Corporate debt securities 9 – 2 – (11 ) – – – – – Total available-for-sale 448 – (17 ) (g) – (422 ) (9 ) – – – – Mortgage servicing rights 2,591 (404 ) (c) – 13 – – 445 (e) – 2,645 (404 ) (c) Net derivative assets and liabilities 171 317 (h) – 1 (10 ) – – (372 ) 107 (52 ) (i) 2016 Available-for-sale Residential non-agency Prime (a) $ 318 $ (1 ) $ – $ – $ – $ (75 ) $ – $ – $ 242 $ – Non-prime (b) 240 (1 ) (2 ) – – (42 ) – – 195 (2 ) Other asset-backed securities 2 – – – – – – – 2 – Corporate debt securities 9 – – – – – – – 9 – Total available-for-sale 569 (2 ) (j) (2 ) (g) – – (117 ) – – 448 (2 ) Mortgage servicing rights 2,512 (488 ) (c) – 43 – – 524 (e) – 2,591 (488 ) (c) Net derivative assets and liabilities 498 332 (k) – 2 (14 ) – – (647 ) 171 (257 ) (l) (a) Prime securities are those designated as such by the issuer at origination. When an issuer designation is unavailable, the Company determines at acquisition date the categorization based on asset pool characteristics (such as weighted-average credit score, loan-to-value, (b) Includes all securities not meeting the conditions to be designated as prime. (c) Included in mortgage banking revenue. (d) Approximately $(139) million included in other noninterest income and $160 million included in mortgage banking revenue. (e) Represents MSRs capitalized during the period. (f) Approximately $14 million included in other noninterest income and $20 million included in mortgage banking revenue. (g) Included in changes in unrealized gains and losses on investment securities available-for-sale. (h) Approximately $21 million included in other noninterest income and $296 million included in mortgage banking revenue. (i) Approximately $(77) million included in other noninterest income and $25 million included in mortgage banking revenue. (j) Approximately $(3) million included in securities gains (losses) and $1 million included in interest income. (k) Approximately $(77) million included in other noninterest income and $409 million included in mortgage banking revenue. (l) Approximately $(276) million included in other noninterest income and $19 million included in mortgage banking revenue. The Company is also required periodically to measure certain other financial assets at fair value on a nonrecurring basis. These measurements of fair value usually result from the application of lower-of-cost-or-fair The following table summarizes the balances as of the measurement date of assets measured at fair value on a nonrecurring basis, and still held as of December 31: 2018 2017 (Dollars in Millions) Level 1 Level 2 Level 3 Total Level 1 Level 2 Level 3 Total Loans (a) $ – $ – $ 40 $ 40 $ – $ – $ 150 $ 150 Other assets (b) – – 57 57 – – 31 31 (a) Represents the carrying value of loans for which adjustments were based on the fair value of the collateral, excluding loans fully charged-off. (b) Primarily represents the fair value of foreclosed properties that were measured at fair value based on an appraisal or broker price opinion of the collateral subsequent to their initial acquisition. The following table summarizes losses recognized related to nonrecurring fair value measurements of individual assets or portfolios for the years ended December 31: (Dollars in Millions) 2018 2017 2016 Loans (a) $ 83 $ 171 $ 192 Other assets (b) 26 20 32 (a) Represents write-downs of loans which were based on the fair value of the collateral, excluding loans fully charged-off. (b) Primarily represents related losses of foreclosed properties that were measured at fair value subsequent to their initial acquisition. Fair Value Option The following table summarizes the differences between the aggregate fair value carrying amount of MLHFS for which the fair value option has been elected and the aggregate unpaid principal amount that the Company is contractually obligated to receive at maturity as of December 31: 2018 2017 (Dollars in Millions) Fair Value Aggregate Carrying Fair Value Aggregate Carrying Total loans $ 2,035 $ 1,972 $ 63 $ 3,534 $ 3,434 $ 100 Nonaccrual loans 2 2 – 1 2 (1 ) Loans 90 days or more past due – – – 1 1 – Fair Value of Financial Instruments The following section summarizes the estimated fair value for financial instruments accounted for at amortized cost as of December 31, 2018 and 2017. In accordance with disclosure guidance related to fair values of financial instruments, the Company did not include assets and liabilities that are not financial instruments, such as the value of goodwill, long-term relationships with deposit, credit card, merchant processing and trust customers, other purchased intangibles, premises and equipment, deferred taxes and other liabilities. Additionally, in accordance with the disclosure guidance, receivables and payables due in one year or less, insurance contracts, equity investments not accounted for at fair value, and deposits with no defined or contractual maturities are excluded. The estimated fair values of the Company’s financial instruments as of December 31, are shown in the table below: 2018 2017 Carrying Amount Fair Value Carrying Amount Fair Value (Dollars in Millions) Level 1 Level 2 Level 3 Total Level 1 Level 2 Level 3 Total Financial Assets Cash and due from banks $ 21,453 $ 21,453 $ – $ – $ 21,453 $ 19,505 $ 19,505 $ – $ – $ 19,505 Federal funds sold and securities purchased under resale agreements 306 – 306 – 306 93 – 93 – 93 Investment securities held-to-maturity 46,050 4,594 40,359 11 44,964 44,362 4,613 39,095 15 43,723 Loans held for sale (a) 21 – – 21 21 20 – – 20 20 Loans 282,837 – – 284,790 284,790 276,507 – – 279,391 279,391 Other 2,412 – 1,241 1,171 2,412 2,393 – 1,037 1,364 2,401 Financial Liabilities Time deposits 44,554 – 44,140 – 44,140 33,356 – 33,120 – 33,120 Short-term borrowings (b) 12,921 – 12,678 – 12,678 15,656 – 15,447 – 15,447 Long-term debt 41,340 – 41,003 – 41,003 32,259 – 32,377 – 32,377 Other 1,726 – – 1,726 1,726 1,556 – – 1,556 1,556 (a) Excludes mortgages held for sale for which the fair value option under applicable accounting guidance was elected. (b) Excludes the Company’s obligation on securities sold short required to be accounted for at fair value per applicable accounting guidance. The fair value of unfunded commitments, deferred non-yield non-yield

Guarantees and Contingent Liabi

Guarantees and Contingent Liabilities	12 Months Ended
	Dec. 31, 2018
Commitments and Contingencies Disclosure [Abstract]
Guarantees and Contingent Liabilities	NOTE 22 Guarantees and Contingent Liabilities Visa Restructuring and Card Association Litigation Visa U.S.A. Inc. (“Visa U.S.A.”) and MasterCard International (collectively, the “Card Associations”) are defendants in antitrust lawsuits challenging the practices of the Card Associations (the “Visa Litigation”). Visa U.S.A. member banks have a contingent obligation to indemnify Visa Inc. under the Visa U.S.A. bylaws (which were modified at the time of the restructuring in October 2007) for potential losses arising from the Visa Litigation. The indemnification by the Visa U.S.A. member banks has no specific maximum amount. Using proceeds from its IPO and through reductions to the conversion ratio applicable to the Class B shares held by Visa U.S.A. member banks, Visa Inc. has funded an escrow account for the benefit of member financial institutions to fund their indemnification obligations associated with the Visa Litigation. The receivable related to the escrow account is classified in other liabilities as a direct offset to the related Visa Litigation contingent liability. In October 2012, Visa signed a settlement agreement to resolve class action claims associated with the multi-district interchange litigation pending in the United States District Court for the Eastern District of New York (the “Multi-District Litigation”). The U.S. Court of Appeals for the Second Circuit reversed the approval of that settlement and remanded the matter to the district court. In September 2018, Visa signed a new settlement agreement, superseding the original settlement agreement, to resolve class action claims associated with the Multi-District Litigation. The new settlement is still subject to court approval. In conjunction with the new settlement agreement, the Class B conversion ratio was reduced by an insignificant amount, and there was no other impact to the Company. During 2018, the Company sold 1.4 million of its Class B shares. Upon final settlement of the Visa Litigation, the remaining 1.3 million Class B shares held by the Company will be eligible for conversion to Class A shares of Visa Inc., which are publicly traded. The Class B shares are excluded from the Company’s financial instruments disclosures included in Note 21. Commitments to Extend Credit The contract or notional amounts of unfunded commitments to extend credit at December 31, 2018, excluding those commitments considered derivatives, were as follows: Term (Dollars in Millions) Less Than Greater One Year Total Commercial and commercial real estate loans $ 30,516 $ 101,975 $ 132,491 Corporate and purchasing card loans (a) 26,391 — 26,931 Residential mortgages 211 3 214 Retail credit card loans (a) 110,707 — 110,707 Other retail loans 13,634 24,123 37,757 Other 6,229 — 6,229 (a) Primarily cancelable at the Company’s discretion. Lease Commitments (Dollars in Millions) Capitalized Operating 2019 $ 17 $ 291 2020 15 259 2021 13 232 2022 10 195 2023 9 153 Thereafter 37 482 Total minimum lease payments 101 $ 1,612 Less amount representing interest 35 Present value of net minimum lease payments $ 66 Other Guarantees and Contingent Liabilities The following table is a summary of other guarantees and contingent liabilities of the Company at December 31, 2018: (Dollars in Millions) Collateral Carrying Amount Maximum Standby letters of credit $ — $ 54 $ 11,305 Third party borrowing arrangements — — 7 Securities lending indemnifications 3,666 — 3,600 Asset sales — 117 7,508 Merchant processing 647 47 103,273 Tender option bond program guarantee 2,399 — 2,332 Minimum revenue guarantees — — 4 Other — 99 1,368 Letters of Credit The contract or notional amount of letters of credit at December 31, 2018, were as follows: Term (Dollars in Millions) Less Than Greater Total Standby $ 5,501 $ 5,805 $ 11,306 Commercial 412 28 440 Guarantees buy-back Third Party Borrowing Arrangements Commitments from Securities Lending Asset Sales tax-advantaged buy-back tax-qualifying buy-back tax-advantaged The maximum potential future payments do not include loan sales where the Company provides standard representation and warranties to the buyer against losses related to loan underwriting documentation defects that may have existed at the time of sale that generally are identified after the occurrence of a triggering event such as delinquency. For these types of loan sales, the maximum potential future payments is generally the unpaid principal balance of loans sold measured at the end of the current reporting period. Actual losses will be significantly less than the maximum exposure, as only a fraction of loans sold will have a representation and warranty breach, and any losses on repurchase would generally be mitigated by any collateral held against the loans. The Company regularly sells loans to GSEs as part of its mortgage banking activities. The Company provides customary representations and warranties to GSEs in conjunction with these sales. These representations and warranties generally require the Company to repurchase assets if it is subsequently determined that a loan did not meet specified criteria, such as a documentation deficiency or rescission of mortgage insurance. If the Company is unable to cure or refute a repurchase request, the Company is generally obligated to repurchase the loan or otherwise reimburse the counterparty for losses. At December 31, 2018, the Company had reserved $10 million for potential losses from representation and warranty obligations, compared with $13 million at December 31, 2017. The Company’s reserve reflects management’s best estimate of losses for representation and warranty obligations. The Company’s repurchase reserve is modeled at the loan level, taking into consideration the individual credit quality and borrower activity that has transpired since origination. The model applies credit quality and economic risk factors to derive a probability of default and potential repurchase that are based on the Company’s historical loss experience, and estimates loss severity based on expected collateral value. The Company also considers qualitative factors that may result in anticipated losses differing from historical loss trends. As of December 31, 2018 and 2017, the Company had $15 million and $9 million, respectively, of unresolved representation and warranty claims from GSEs. The Company does not have a significant amount of unresolved claims from investors other than GSEs. Merchant Processing A cardholder, through its issuing bank, generally has until the later of up to four months after the date the transaction is processed or the receipt of the product or service to present a charge-back to the Company as the merchant processor. The absolute maximum potential liability is estimated to be the total volume of credit card transactions that meet the associations’ requirements to be valid charge-back transactions at any given time. Management estimates that the maximum potential exposure for charge-backs would approximate the total amount of merchant transactions processed through the credit card associations for the last four months. For the last four months of 2018 this amount totaled approximately $103.3 billion. In most cases, this contingent liability is unlikely to arise, as most products and services are delivered when purchased and amounts are refunded when items are returned to merchants. However, where the product or service has been purchased but is not provided until a future date (“future delivery”), the potential for this contingent liability increases. To mitigate this risk, the Company may require the merchant to make an escrow deposit, place maximum volume limitations on future delivery transactions processed by the merchant at any point in time, or require various credit enhancements (including letters of credit and bank guarantees). Also, merchant processing contracts may include event triggers to provide the Company more financial and operational control in the event of financial deterioration of the merchant. The Company currently processes card transactions in the United States, Canada, Europe and Mexico through wholly-owned subsidiaries and joint ventures with other financial institutions. In the event a merchant was unable to fulfill product or services subject to future delivery, such as airline tickets, the Company could become financially liable for refunding the purchase price of such products or services purchased through the credit card associations under the charge-back provisions. Charge-back risk related to these merchants is evaluated in a manner similar to credit risk assessments and, as such, merchant processing contracts contain various provisions to protect the Company in the event of default. At December 31, 2018, the value of airline tickets purchased to be delivered at a future date through card transactions processed by the Company was $7.1 billion. The Company held collateral of $473 million in escrow deposits, letters of credit and indemnities from financial institutions, and liens on various assets. In addition to specific collateral or other credit enhancements, the Company maintains a liability for its implied guarantees associated with future delivery. At December 31, 2018, the liability was $35 million primarily related to these airline processing arrangements. In the normal course of business, the Company has unresolved charge-backs. The Company assesses the likelihood of its potential liability based on the extent and nature of unresolved charge-backs and its historical loss experience. At December 31, 2018, the Company held $174 million of merchant escrow deposits as collateral and had a recorded liability for potential losses of $12 million. Tender Option Bond Program Guarantee available-for-sale Minimum Revenue Guarantees Other Guarantees and Commitments The Company has also made other financial performance guarantees and commitments primarily related to the operations of its subsidiaries. At December 31, 2018, the maximum potential future payments guaranteed or committed by the Company under these arrangements were approximately $687 million. Litigation and Regulatory Matters The Company is subject to various litigation and regulatory matters that arise in the ordinary course of its business. The Company establishes reserves for such matters when potential losses become probable and can be reasonably estimated. The Company believes the ultimate resolution of existing legal and regulatory matters will not have a material adverse effect on the financial condition, results of operations or cash flows of the Company. However, in light of the uncertainties inherent in these matters, it is possible that the ultimate resolution of one or more of these matters may have a material adverse effect on the Company’s results from operations for a particular period, and future changes in circumstances or additional information could result in additional accruals or resolution in excess of established accruals, which could adversely affect the Company’s results from operations, potentially materially. Litigation Matters Regulatory Matters In October 2015, U.S. Bank entered into a Consent Order with the Office of the Comptroller of the Currency (“OCC”) concerning deficiencies in its Bank Secrecy Act/anti-money laundering compliance program, and requiring an ongoing review of that program. The OCC terminated this Consent Order in late 2018. In February 2018, the Company entered into a deferred prosecution agreement (the “DPA”) with the United States Attorney’s Office in Manhattan that resolved its investigation of the Company concerning a legacy banking relationship between U.S. Bank and payday lending businesses associated with a former customer and U.S. Bank’s legacy Bank Secrecy Act/anti-money laundering compliance program. The DPA defers prosecution for a period of two years, subject to the Company’s compliance with its terms, which include ongoing efforts to implement and maintain an adequate Bank Secrecy Act/anti-money laundering compliance program. If the Company violates the DPA, its term could be extended up to an additional one year, or the Company could be subject to a prosecution or civil action based on the matters that are the subject of the DPA. In addition, the Company and certain of its affiliates entered into related regulatory settlements with the Financial Crimes Enforcement Network and the Board of Governors of the Federal Reserve System. If the Company and its affiliates fail to satisfy ongoing obligations under these regulatory settlements, which include ongoing commitments to provide resources to, and enhance, the Company’s firm wide Bank Secrecy Act/anti-money laundering compliance program, the Company and its affiliates may be required to enter into further orders and settlements, pay additional fines or penalties, or modify their business practices (which may increase operating expenses and decrease revenue). Outlook

U.S. Bancorp (Parent Company)

U.S. Bancorp (Parent Company)	12 Months Ended
	Dec. 31, 2018
Condensed Financial Information Disclosure [Abstract]
U.S. Bancorp (Parent Company)	NOTE 23 U.S. Bancorp (Parent Company) Condensed Balance Sheet At December 31 (Dollars in Millions) 2018 2017 Assets Due from banks, principally interest-bearing $ 9,969 $ 9,157 Available-for-sale 921 963 Investments in bank subsidiaries 47,549 46,435 Investments in nonbank subsidiaries 2,568 2,540 Advances to bank subsidiaries 3,800 3,300 Advances to nonbank subsidiaries 2,543 2,055 Other assets 813 1,079 Total assets $ 68,163 $ 65,529 Liabilities and Shareholders’ Equity Short-term funds borrowed $ — $ 1 Long-term debt 16,291 15,769 Other liabilities 843 719 Shareholders’ equity 51,029 49,040 Total liabilities and shareholders’ equity $ 68,163 $ 65,529 Condensed Income Statement Year Ended December 31 (Dollars in Millions) 2018 2017 2016 Income Dividends from bank subsidiaries $ 5,300 $ 4,800 $ 2,100 Dividends from nonbank subsidiaries 6 5 4 Interest from subsidiaries 220 159 140 Other income 33 41 57 Total income 5,559 5,005 2,301 Expense Interest expense 471 402 327 Other expense 133 124 123 Total expense 604 526 450 Income before income taxes and equity in undistributed income of subsidiaries 4,955 4,479 1,851 Applicable income taxes (91 ) (176 ) (97 ) Income of parent company 5,046 4,655 1,948 Equity in undistributed income of subsidiaries 2,050 1,563 3,940 Net income attributable to U.S. Bancorp $ 7,096 $ 6,218 $ 5,888 Condensed Statement of Cash Flows Year Ended December 31 (Dollars in Millions) 2018 2017 2016 Operating Activities Net income attributable to U.S. Bancorp $ 7,096 $ 6,218 $ 5,888 Adjustments to reconcile net income to net cash provided by operating activities Equity in undistributed income of subsidiaries (2,050 ) (1,563 ) (3,940 ) Other, net 359 (125 ) 75 Net cash provided by operating activities 5,405 4,530 2,023 Investing Activities Proceeds from sales and maturities of investment securities 39 100 232 Purchases of investment securities (10 ) (844 ) (120 ) Net increase in short-term advances to subsidiaries (488 ) (790 ) (442 ) Long-term advances to subsidiaries (500 ) — (750 ) Principal collected on long-term advances to subsidiaries — 500 100 Other, net 304 (12 ) (12 ) Net cash used in investing activities (655 ) (1,046 ) (992 ) Financing Activities Net decrease in short-term borrowings (1 ) (21 ) (3 ) Proceeds from issuance of long-term debt 2,100 3,920 3,550 Principal payments or redemption of long-term debt (1,500 ) (1,250 ) (1,926 ) Proceeds from issuance of preferred stock 565 993 — Proceeds from issuance of common stock 86 159 355 Repurchase of preferred stock — (1,085 ) — Repurchase of common stock (2,822 ) (2,631 ) (2,556 ) Cash dividends paid on preferred stock (274 ) (284 ) (267 ) Cash dividends paid on common stock (2,092 ) (1,928 ) (1,810 ) Net cash used in financing activities (3,938 ) (2,127 ) (2,657 ) Change in cash and due from banks 812 1,357 (1,626 ) Cash and due from banks at beginning of year 9,157 7,800 9,426 Cash and due from banks at end of year $ 9,969 $ 9,157 $ 7,800 Transfer of funds (dividends, loans or advances) from bank subsidiaries to the Company is restricted. Federal law requires loans to the Company or its affiliates to be secured and generally limits loans to the Company or an individual affiliate to 10 percent of each bank’s unimpaired capital and surplus. In the aggregate, loans to the Company and all affiliates cannot exceed 20 percent of each bank’s unimpaired capital and surplus. Dividend payments to the Company by its subsidiary bank are subject to regulatory review and statutory limitations and, in some instances, regulatory approval. In general, dividends by the Company’s bank subsidiary to the parent company are limited by rules which compare dividends to net income for regulatorily-defined periods. Furthermore, dividends are restricted by minimum capital constraints for all national banks.

Subsequent Events

Subsequent Events	12 Months Ended
	Dec. 31, 2018
Subsequent Events [Abstract]
Subsequent Events	NOTE 24 Subsequent Events The Company has evaluated the impact of events that have occurred subsequent to December 31, 2018 through the date the consolidated financial statements were filed with the United States Securities and Exchange Commission. Based on this evaluation, the Company has determined none of these events were required to be recognized or disclosed in the consolidated financial statements and related notes.

Significant Accounting Polici_2

Significant Accounting Policies (Policies)	12 Months Ended
	Dec. 31, 2018
Accounting Policies [Abstract]
Basis of Presentation	Basis of Presentation
Uses of Estimates	Uses of Estimates
Business Segments	Business Segments Within the Company, financial performance is measured by major lines of business based on the products and services provided to customers through its distribution channels. The Company has five reportable operating segments: Corporate and Commercial Banking non-profit Consumer and Business Banking on-line Wealth Management and Investment Services Payment Services Treasury and Corporate Support tax-advantaged Segment Results
Securities	Securities Realized gains or losses on securities are determined on a trade date basis based on the specific amortized cost of the investments sold. Trading Securities Available-for-sale Available-for-sale Held-to-maturity Securities Purchased Under Agreements to Resell and Securities Sold Under Agreements to Repurchase
Equity Investments	Equity Investments Equity investments in entities where the Company has a significant influence (generally between 20 percent and 50 percent ownership), but does not control the entity, are accounted for using the equity method. Investments in limited partnerships and similarly structured limited liability companies where the Company’s ownership interest is greater than 5 percent are accounted for using the equity method. Equity investments not using the equity method are accounted for at fair value with changes in fair value and realized gains or losses reported in noninterest income, unless fair value is not readily determinable, in which case the investment is carried at cost subject to adjustments for any observable market transactions on the same or similar instruments of the investee. Most of the Company’s equity investments do not have readily determinable fair values. All equity investments are evaluated for impairment at least annually and more frequently if certain criteria are met.
Loans	Loans The Company offers a broad array of lending products and categorizes its loan portfolio into two segments, which is the level at which it develops and documents a systematic methodology to determine the allowance for credit losses. The Company’s two loan portfolio segments are commercial lending and consumer lending. Previously, the Company categorized loans covered under loss sharing or similar credit protection agreements with the Federal Deposit Insurance Corporation (“FDIC”), along with the related indemnification asset, in a separate covered loans segment. As the majority of these loans were sold and the loss share coverage expired, any remaining balances were reclassified to be included in the loan segment they would have otherwise been included in had the loss share coverage not been in place. The Company further disaggregates its loan portfolio segments into various classes based on their underlying risk characteristics. The two classes within the commercial lending segment are commercial loans and commercial real estate loans. The three classes within the consumer lending segment are residential mortgages, credit card loans and other retail loans. The Company’s accounting methods for loans differ depending on whether the loans are originated or purchased, and for purchased loans, whether the loans were acquired at a discount related to evidence of credit deterioration since date of origination. Originated Loans Held for Investment Purchased Loans (non-impaired non-impaired In determining the acquisition date fair value of purchased impaired loans, and in subsequent accounting, the Company generally aggregates purchased consumer loans and certain smaller balance commercial loans into pools of loans with common risk characteristics, while accounting for larger balance commercial loans individually. Expected cash flows at the purchase date in excess of the fair value of loans are recorded as interest income over the life of the loans if the timing and amount of the future cash flows is reasonably estimable. Subsequent to the purchase date, increases in cash flows over those expected at the purchase date are recognized as interest income prospectively. The present value of any decreases in expected cash flows, other than from decreases in variable interest rates, after the purchase date is recognized by recording an allowance for credit losses. Revolving loans, including lines of credit and credit cards loans, and leases are excluded from purchased impaired loans accounting. For purchased loans acquired after January 1, 2009 that are not deemed impaired at acquisition, credit discounts representing the principal losses expected over the life of the loan are a component of the initial fair value. Subsequent to the purchase date, the methods utilized to estimate the required allowance for credit losses for these loans is similar to originated loans; however, the Company records a provision for credit losses only when the required allowance exceeds any remaining credit discounts. The remaining differences between the purchase price and the unpaid principal balance at the date of acquisition are recorded in interest income over the life of the loans. Commitments to Extend Credit Allowance for Credit Losses The allowance recorded for loans in the commercial lending segment is based on reviews of individual credit relationships and considers the migration analysis of commercial lending segment loans and actual loss experience. For each loan type, this historical loss experience is adjusted as necessary to consider any relevant changes in portfolio composition, lending policies, underwriting standards, risk management practices or economic conditions. The results of the analysis are evaluated quarterly to confirm the selected loss experience is appropriate for each commercial loan type. The allowance recorded for impaired loans greater than $5 million in the commercial lending segment is based on an individual loan analysis utilizing expected cash flows discounted using the original effective interest rate, the observable market price of the loan, or the fair value of the collateral, less selling costs, for collateral-dependent loans, rather than the migration analysis. The allowance recorded for all other commercial lending segment loans is determined on a homogenous pool basis and includes consideration of product mix, risk characteristics of the portfolio, delinquency status, bankruptcy experience, portfolio growth and historical losses, adjusted for current trends. The Company also considers the impacts of any loan modifications made to commercial lending segment loans and any subsequent payment defaults to its expectations of cash flows, principal balance, and current expectations about the borrower’s ability to pay in determining the allowance for credit losses. The allowance recorded for Troubled Debt Restructuring (“TDR”) loans and purchased impaired loans in the consumer lending segment is determined on a homogenous pool basis utilizing expected cash flows discounted using the original effective interest rate of the pool, or the prior quarter effective rate, respectively. The allowance for collateral-dependent loans in the consumer lending segment is determined based on the fair value of the collateral less costs to sell. The allowance recorded for all other consumer lending segment loans is determined on a homogenous pool basis and includes consideration of product mix, risk characteristics of the portfolio, bankruptcy experience, delinquency status, refreshed loan-to-value In addition, subsequent payment defaults on loan modifications considered TDRs are considered in the underlying factors used in the determination of the appropriateness of the allowance for credit losses. For each loan segment, the Company estimates future loan charge-offs through a variety of analysis, trends and underlying assumptions. With respect to the commercial lending segment, TDRs may be collectively evaluated for impairment where observed performance history, including defaults, is a primary driver of the loss allocation. For commercial TDRs individually evaluated for impairment, attributes of the borrower are the primary factors in determining the allowance for credit losses. However, historical loss experience is also incorporated into the allowance methodology applied to this category of loans. With respect to the consumer lending segment, performance of the portfolio, including defaults on TDRs, is considered when estimating future cash flows. The Company’s methodology for determining the appropriate allowance for credit losses for each loan segment also considers the imprecision inherent in the methodologies used. As a result, in addition to the amounts determined under the methodologies described above, management also considers the potential impact of other qualitative factors which include, but are not limited to, economic factors; geographic and other concentration risks; delinquency and nonaccrual trends; current business conditions; changes in lending policy, underwriting standards and other relevant business practices; results of internal review; and the regulatory environment. The consideration of these items results in adjustments to allowance amounts included in the Company’s allowance for credit losses for each of the above loan segments. The Company also assesses the credit risk associated with off-balance off-balance Credit Quality For all loan classes, loans are considered past due based on the number of days delinquent except for monthly amortizing loans which are classified delinquent based upon the number of contractually required payments not made (for example, two missed payments is considered 30 days delinquent). When a loan is placed on nonaccrual status, unpaid accrued interest is reversed, reducing interest income in the current period. Commercial lending segment loans are generally placed on nonaccrual status when the collection of principal and interest has become 90 days past due or is otherwise considered doubtful. Commercial lending segment loans are generally fully or partially charged down to the fair value of the collateral securing the loan, less costs to sell, when the loan is placed on nonaccrual. Consumer lending segment loans are generally charged-off 1-4 charge-off 1-4 family charged-off. charged-off 1-4 charged-off charged-off charge-off. For all loan classes, interest payments received on nonaccrual loans are generally recorded as a reduction to a loan’s carrying amount while a loan is on nonaccrual and are recognized as interest income upon payoff of the loan. However, interest income may be recognized for interest payments if the remaining carrying amount of the loan is believed to be collectible. In certain circumstances, loans in any class may be restored to accrual status, such as when a loan has demonstrated sustained repayment performance or no amounts are past due and prospects for future payment are no longer in doubt; or when the loan becomes well secured and is in the process of collection. Loans where there has been a partial charge-off charged-off) The Company classifies its loan portfolios using internal credit quality ratings on a quarterly basis. These ratings include pass, special mention and classified, and are an important part of the Company’s overall credit risk management process and evaluation of the allowance for credit losses. Loans with a pass rating represent those loans not classified on the Company’s rating scale for problem credits, as minimal credit risk has been identified. Special mention loans are those loans that have a potential weakness deserving management’s close attention. Classified loans are those loans where a well-defined weakness has been identified that may put full collection of contractual cash flows at risk. It is possible that others, given the same information, may reach different reasonable conclusions regarding the credit quality rating classification of specific loans. Troubled Debt Restructurings The Company has implemented certain restructuring programs that may result in TDRs. However, many of the Company’s TDRs are also determined on a case-by-case For the commercial lending segment, modifications generally result in the Company working with borrowers on a case-by-case Modifications for the consumer lending segment are generally part of programs the Company has initiated. The Company modifies residential mortgage loans under Federal Housing Administration, United States Department of Veterans Affairs, or its own internal programs. Under these programs, the Company offers qualifying homeowners the opportunity to permanently modify their loan and achieve more affordable monthly payments by providing loan concessions. These concessions may include adjustments to interest rates, conversion of adjustable rates to fixed rates, extension of maturity dates or deferrals of payments, capitalization of accrued interest and/or outstanding advances, or in limited situations, partial forgiveness of loan principal. In most instances, participation in residential mortgage loan restructuring programs requires the customer to complete a short-term trial period. A permanent loan modification is contingent on the customer successfully completing the trial period arrangement, and the loan documents are not modified until that time. The Company reports loans in a trial period arrangement as TDRs and continues to report them as TDRs after the trial period. Credit card and other retail loan TDRs are generally part of distinct restructuring programs providing customers experiencing financial difficulty with modifications whereby balances may be amortized up to 60 months, and generally include waiver of fees and reduced interest rates. In addition, the Company considers secured loans to consumer borrowers that have debt discharged through bankruptcy where the borrower has not reaffirmed the debt to be TDRs. Acquired loans restructured after acquisition are not considered TDRs for accounting and disclosure purposes if the loans evidenced credit deterioration as of the acquisition date and are accounted for in pools. Impaired Loans Factors used by the Company in determining whether all principal and interest payments due on commercial and commercial real estate loans will be collected and, therefore, whether those loans are impaired include, but are not limited to, the financial condition of the borrower, collateral and/or guarantees on the loan, and the borrower’s estimated future ability to pay based on industry, geographic location and certain financial ratios. The evaluation of impairment on residential mortgages, credit card loans and other retail loans is primarily driven by delinquency status of individual loans or whether a loan has been modified, and considers any government guarantee where applicable. Leases The investment in leveraged leases is the sum of all lease payments, less nonrecourse debt payments, plus estimated residual values, less unearned income. Income from leveraged leases is recognized over the term of the leases based on the unrecovered equity investment. Residual values on leased assets are reviewed regularly for other-than-temporary impairment. Residual valuations for retail automobile leases are based on independent assessments of expected used car sale prices at the end-of-term. re-marketing Other Real Estate
Loans Held for Sale	Loans Held For Sale Loans held for sale (“LHFS”) represent mortgage loans intended to be sold in the secondary market and other loans that management has an active plan to sell. LHFS are carried at the lower-of-cost-or-fair Where an election is made to carry the LHFS at fair value, any change in fair value is recognized in noninterest income. Where an election is made to carry LHFS at lower-of-cost-or-fair
Derivative Financial Instruments	Derivative Financial Instruments In the ordinary course of business, the Company enters into derivative transactions to manage various risks and to accommodate the business requirements of its customers. Derivative instruments are reported in other assets or other liabilities at fair value. Changes in a derivative’s fair value are recognized currently in earnings unless specific hedge accounting criteria are met. All derivative instruments that qualify and are designated for hedge accounting are recorded at fair value and classified as either a hedge of the fair value of a recognized asset or liability (“fair value hedge”); a hedge of a forecasted transaction or the variability of cash flows to be received or paid related to a recognized asset or liability (“cash flow hedge”); or a hedge of the volatility of a net investment in foreign operations driven by changes in foreign currency exchange rates (“net investment hedge”). Changes in the fair value of a derivative that is highly effective and designated as a fair value hedge, and the offsetting changes in the fair value of the hedged item, are recorded in earnings. Changes in the fair value of a derivative that is highly effective and designated as a cash flow hedge are recorded in other comprehensive income (loss) until cash flows of the hedged item are realized. Changes in the fair value of net investment hedges that are highly effective are recorded in other comprehensive income (loss). The Company performs an assessment, at inception and, at a minimum, quarterly thereafter, to determine the effectiveness of the derivative in offsetting changes in the value or cash flows of the hedged item(s). If a derivative designated as a cash flow hedge is terminated or ceases to be highly effective, the gain or loss in other comprehensive income (loss) is amortized to earnings over the period the forecasted hedged transactions impact earnings. If a hedged forecasted transaction is no longer probable, hedge accounting is ceased and any gain or loss included in other comprehensive income (loss) is reported in earnings immediately, unless the forecasted transaction is at least reasonably possible of occurring, whereby the amounts remain within other comprehensive income (loss).
Revenue Recognition	Revenue Recognition In the ordinary course of business, the Company recognizes income derived from various revenue generating activities. Certain revenues are generated from contracts where they are recognized when, or as services or products are transferred to customers for amounts the Company expects to be entitled. Revenue generating activities related to financial assets and liabilities are also recognized; including mortgage servicing fees, loan commitment fees, foreign currency remeasurements, and gains and losses on securities, equity investments and unconsolidated subsidiaries. Certain specific policies include the following: Credit and Debit Card Revenue Corporate Payment Products Revenue Merchant Processing Services point-of-sale ATM Processing Services Trust and Investment Management Fees Deposit Service Charges Treasury Management Fees Commercial Products Revenue non-yield Mortgage Banking Revenue Investment Products Fees Other Noninterest Income
Goodwill and Other Intangible Assets	Goodwill and Other Intangible Assets
Income Taxes	Income Taxes
Mortgage Servicing Rights	Mortgage Servicing Rights
Pensions	Pensions year-end
Premises and Equipment	Premises and Equipment Capitalized leases, less accumulated amortization, are included in premises and equipment. Capitalized lease obligations are included in long-term debt. Capitalized leases are amortized on a straight-line basis over the lease term and the amortization is included in depreciation expense.
Stock-Based Compensation	Stock-Based Compensation
Per Share Calculations	Per Share Calculations two-class two-class
Accounting Changes	Revenue Recognition Financial Instruments—Hedge Accounting held-to-maturity available-for-sale Income Taxes Accounting for Leases Financial Instruments—Credit Losses
Accounting for Transfers and Servicing of Financial Assets	In accordance with the accounting guidance for asset transfers, the Company considers any ongoing involvement with transferred assets in determining whether the assets can be derecognized from the balance sheet. For loans sold under participation agreements, the Company also considers whether the terms of the loan participation agreement meet the accounting definition of a participating interest. With the exception of servicing and certain performance-based guarantees, the Company’s continuing involvement with financial assets sold is minimal and generally limited to market customary representation and warranty clauses. Any gain or loss on sale depends on the previous carrying amount of the transferred financial assets, the consideration received, and any liabilities incurred in exchange for the transferred assets. Upon transfer, any servicing assets and other interests that continue to be held by the Company are initially recognized at fair value.
Variable Interest Entities	The Company is not required to consolidate VIEs in which it has concluded it does not have a controlling financial interest, and thus is not the primary beneficiary. In such cases, the Company does not have both the power to direct the entities’ most significant activities and the obligation to absorb losses or the right to receive benefits that could potentially be significant to the VIEs. The Company’s investments in these unconsolidated VIEs are carried in other assets on the Consolidated Balance Sheet. The Company’s unfunded capital and other commitments related to these unconsolidated VIEs are generally carried in other liabilities on the Consolidated Balance Sheet. The Company’s maximum exposure to loss from these unconsolidated VIEs include the investment recorded on the Company’s Consolidated Balance Sheet, net of unfunded capital commitments, and previously recorded tax credits which remain subject to recapture by taxing authorities based on compliance features required to be met at the project level. While the Company believes potential losses from these investments are remote, the maximum exposure was determined by assuming a scenario where the community-based business and housing projects completely fail and do not meet certain government compliance requirements resulting in recapture of the related tax credits. The Company is required to consolidate VIEs in which it has concluded it has a controlling financial interest. The Company sponsors entities to which it transfers its interests in tax-advantaged
Netting Arrangements for Certain Financial Instruments	The Company’s derivative portfolio consists of bilateral over-the-counter over-the-counter As part of the Company’s treasury and broker-dealer operations, the Company executes transactions that are treated as securities sold under agreements to repurchase or securities purchased under agreements to resell, both of which are accounted for as collateralized financings. Securities sold under agreements to repurchase include repurchase agreements and securities loaned transactions. Securities purchased under agreements to resell include reverse repurchase agreements and securities borrowed transactions. For securities sold under agreements to repurchase, the Company records a liability for the cash received, which is included in short-term borrowings on the Consolidated Balance Sheet. For securities purchased under agreements to resell, the Company records a receivable for the cash paid, which is included in other assets on the Consolidated Balance Sheet. Securities transferred to counterparties under repurchase agreements and securities loaned transactions continue to be recognized on the Consolidated Balance Sheet, are measured at fair value, and are included in investment securities or other assets. Securities received from counterparties under reverse repurchase agreements and securities borrowed transactions are not recognized on the Consolidated Balance Sheet unless the counterparty defaults. The securities transferred under repurchase and reverse repurchase transactions typically are U.S. Treasury and agency securities, residential agency mortgage-backed securities or corporate debt securities. The securities loaned or borrowed typically are corporate debt securities traded by the Company’s broker-dealer subsidiary. In general, the securities transferred can be sold, repledged or otherwise used by the party in possession. No restrictions exist on the use of cash collateral by either party. Repurchase/reverse repurchase and securities loaned/borrowed transactions expose the Company to counterparty risk. The Company manages this risk by performing assessments, independent of business line managers, and establishing concentration limits on each counterparty. Additionally, these transactions include collateral arrangements that require the fair values of the underlying securities to be determined daily, resulting in cash being obtained or refunded to counterparties to maintain specified collateral levels. The Company executes its derivative, repurchase/reverse repurchase and securities loaned/borrowed transactions under the respective industry standard agreements. These agreements include master netting arrangements that allow for multiple contracts executed with the same counterparty to be viewed as a single arrangement. This allows for net settlement of a single amount on a daily basis. In the event of default, the master netting arrangement provides for close-out The Company has elected to offset the assets and liabilities under netting arrangements for the balance sheet presentation of the majority of its derivative counterparties. The netting occurs at the counterparty level, and includes all assets and liabilities related to the derivative contracts, including those associated with cash collateral received or delivered. The Company has not elected to offset the assets and liabilities under netting arrangements for the balance sheet presentation of repurchase/reverse repurchase and securities loaned/borrowed transactions.
Fair Values of Assets and Liabilities	The Company uses fair value measurements for the initial recording of certain assets and liabilities, periodic remeasurement of certain assets and liabilities, and disclosures. Derivatives, trading and available-for-sale lower-of-cost-or-fair 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. A fair value measurement reflects all of the assumptions that market participants would use in pricing the asset or liability, including assumptions about the risk inherent in a particular valuation technique, the effect of a restriction on the sale or use of an asset and the risk of nonperformance. The Company groups its assets and liabilities measured at fair value into a three-level hierarchy for valuation techniques used to measure financial assets and financial liabilities at fair value. This hierarchy is based on whether the valuation inputs are observable or unobservable. These levels are: – Level 1 — Quoted prices in active markets for identical assets or liabilities. Level 1 includes U.S. Treasury securities, as well as exchange-traded instruments. – Level 2 — Observable inputs other than Level 1 prices, such as quoted prices for similar assets or liabilities; quoted prices in markets that are not active; or other inputs that are observable or can be corroborated by observable market data for substantially the full term of the assets or liabilities. Level 2 includes debt securities that are traded less frequently than exchange-traded instruments and which are typically valued using third party pricing services; derivative contracts and other assets and liabilities, including securities, whose value is determined using a pricing model with inputs that are observable in the market or can be derived principally from or corroborated by observable market data; and MLHFS whose values are determined using quoted prices for similar assets or pricing models with inputs that are observable in the market or can be corroborated by observable market data. – Level 3 — Unobservable inputs that are supported by little or no market activity and that are significant to the fair value of the assets or liabilities. Level 3 assets and liabilities include financial instruments whose values are determined using pricing models, discounted cash flow methodologies, or similar techniques, as well as instruments for which the determination of fair value requires significant management judgment or estimation. This category includes MSRs and certain derivative contracts.

Significant Accounting Polici_3

Significant Accounting Policies (Tables)	12 Months Ended
	Dec. 31, 2018
Segment Reporting [Abstract]
Line of Business Financial Performance	TABLE 25 Line of Business Financial Performance Corporate and Commercial Banking Consumer and Business Banking Year Ended December 31 (Dollars in Millions) 2018 2017 Percent 2018 2017 Percent Condensed Income Statement Net interest income (taxable-equivalent basis) $ 2,938 $ 2,905 1.1 % $ 6,164 $ 5,832 5.7 % Noninterest income 844 915 (7.8 ) 2,302 2,386 (3.5 ) Securities gains (losses), net – (3 ) * – – – Total net revenue 3,782 3,817 (.9 ) 8,466 8,218 3.0 Noninterest expense 1,578 1,552 1.7 5,217 5,056 3.2 Other intangibles 4 4 – 27 30 (10.0 ) Total noninterest expense 1,582 1,556 1.7 5,244 5,086 3.1 Income before provision and income taxes 2,200 2,261 (2.7 ) 3,222 3,132 2.9 Provision for credit losses 65 (14 ) * 232 337 (31.2 ) Income before income taxes 2,135 2,275 (6.2 ) 2,990 2,795 7.0 Income taxes and taxable-equivalent adjustment 534 828 (35.5 ) 748 1,018 (26.5 ) Net income 1,601 1,447 10.6 2,242 1,777 26.2 Net (income) loss attributable to noncontrolling interests – – – – – – Net income attributable to U.S. Bancorp $ 1,601 $ 1,447 10.6 $ 2,242 $ 1,777 26.2 Average Balance Sheet Commercial $ 75,010 $ 73,483 2.1 % $ 9,855 $ 9,980 (1.3 )% Commercial real estate 18,869 20,452 (7.7 ) 16,272 16,702 (2.6 ) Residential mortgages 6 6 – 58,549 55,939 4.7 Credit card – – – – – – Other retail 1 – * 53,990 53,199 1.5 Total loans, excluding covered loans 93,886 93,941 (.1 ) 138,666 135,820 2.1 Covered loans – – – 2,169 3,445 (37.0 ) Total loans 93,886 93,941 (.1 ) 140,835 139,265 1.1 Goodwill 1,647 1,647 – 3,605 3,632 (.7 ) Other intangible assets 11 13 (15.4 ) 2,953 2,740 7.8 Assets 102,834 102,528 .3 155,290 153,815 1.0 Noninterest-bearing deposits 33,074 36,030 (8.2 ) 27,526 27,680 (.6 ) Interest checking 10,046 9,950 1.0 50,135 47,231 6.1 Savings products 41,889 45,764 (8.5 ) 61,484 60,496 1.6 Time deposits 17,966 16,136 11.3 13,321 12,894 3.3 Total deposits 102,975 107,880 (4.5 ) 152,466 148,301 2.8 Total U.S. Bancorp shareholders’ equity 10,465 9,870 6.0 11,816 11,133 6.1 * Not meaningful (a) Presented net of related rewards and rebate costs and certain partner payments of $2.2 billion and $2.0 billion for 2018 and 2017, respectively. (b) Includes revenue generated from certain contracts with customers of $7.4 billion and $7.1 billion for 2018 and 2017, respectively. Wealth Management and Payment Services Treasury and Corporate Support Consolidated Company 2018 2017 Percent 2018 2017 Percent 2018 2017 Percent 2018 2017 Percent $ 1,122 $ 1,007 11.4 % $ 2,445 $ 2,403 1.7 % $ 366 $ 438 (16.4 )% $ 13,035 $ 12,585 3.6 % 1,748 1,643 6.4 3,601 (a) 3,368 (a) 6.9 1,077 948 13.6 9,572 (b) 9,260 (b) 3.4 – – – – – – 30 60 (50.0 ) 30 57 (47.4 ) 2,870 2,650 8.3 6,046 5,771 4.8 1,473 1,446 1.9 22,637 21,902 3.4 1,780 1,617 10.1 2,875 2,662 8.0 853 1,728 (50.6 ) 12,303 12,615 (2.5 ) 16 20 (20.0 ) 114 121 (5.8 ) – – – 161 175 (8.0 ) 1,796 1,637 9.7 2,989 2,783 7.4 853 1,728 (50.6 ) 12,464 12,790 (2.5 ) 1,074 1,013 6.0 3,057 2,988 2.3 620 (282 ) * 10,173 9,112 11.6 (2 ) (1 ) * 1,081 1,082 (.1 ) 3 (14 ) * 1,379 1,390 (.8 ) 1,076 1,014 6.1 1,976 1,906 3.7 617 (268 ) * 8,794 7,722 13.9 270 368 (26.6 ) 495 693 (28.6 ) (377 ) (1,438 ) 73.8 1,670 1,469 13.7 806 646 24.8 1,481 1,213 22.1 994 1,170 (15.0 ) 7,124 6,253 13.9 – – – – (13 ) * (28 ) (22 ) (27.3 ) (28 ) (35 ) 20.0 $ 806 $ 646 24.8 $ 1,481 $ 1,200 23.4 $ 966 $ 1,148 (15.9 ) $ 7,096 $ 6,218 14.1 $ 3,779 $ 3,436 10.0 % $ 9,026 $ 8,082 11.7 % $ 1,184 $ 923 28.3 % $ 98,854 $ 95,904 3.1 % 520 511 1.8 – – – 4,316 4,412 (2.2 ) 39,977 42,077 (5.0 ) 3,333 2,831 17.7 – – – 5 8 (37.5 ) 61,893 58,784 5.3 – – – 21,672 20,906 3.7 – – – 21,672 20,906 3.7 1,740 1,755 (.9 ) 404 459 (12.0 ) 1 3 (66.7 ) 56,136 55,416 1.3 9,372 8,533 9.8 31,102 29,447 5.6 5,506 5,346 3.0 278,532 273,087 2.0 – – – – – – – 5 * 2,169 3,450 (37.1 ) 9,372 8,533 9.8 31,102 29,447 5.6 5,506 5,351 2.9 280,701 276,537 1.5 1,618 1,617 .1 2,569 2,465 4.2 – – – 9,439 9,361 .8 63 81 (22.2 ) 406 400 1.5 – – – 3,433 3,234 6.2 12,445 11,750 5.9 36,916 35,009 5.4 149,529 145,480 2.8 457,014 448,582 1.9 14,011 14,846 (5.6 ) 1,099 1,037 6.0 2,486 2,340 6.2 78,196 81,933 (4.6 ) 9,929 10,729 (7.5 ) – – – 44 43 2.3 70,154 67,953 3.2 42,223 42,978 (1.8 ) 107 102 4.9 742 529 40.3 146,445 149,869 (2.3 ) 3,858 4,008 (3.7 ) 3 2 50.0 3,519 719 * 38,667 33,759 14.5 70,021 72,561 (3.5 ) 1,209 1,141 6.0 6,791 3,631 87.0 333,462 333,514 – 2,475 2,421 2.2 6,629 6,275 5.6 19,006 19,398 (2.0 ) 50,391 49,097 2.6

Investment Securities (Tables)

Investment Securities (Tables)	12 Months Ended
	Dec. 31, 2018
Investments, Debt and Equity Securities [Abstract]
Investment Securities	TABLE 13 Investment Securities Available-for-Sale Held-to-Maturity At December 31, 2018 (Dollars in Millions) Amortized Fair Value Weighted- Weighted- (e) Amortized Fair Weighted- Weighted- (e) U.S. Treasury and Agencies Maturing in one year or less $ 2,231 $ 2,221 .5 1.49 % $ 650 $ 647 .5 1.73 % Maturing after one year through five years 16,735 16,416 2.8 1.75 3,459 3,338 4.2 1.64 Maturing after five years through ten years 638 620 7.4 2.82 993 976 5.9 2.36 Maturing after ten years – – – – – – – – Total $ 19,604 $ 19,257 2.7 1.76 % $ 5,102 $ 4,961 4.1 1.79 % Mortgage-Backed Securities (a) Maturing in one year or less $ 60 $ 60 .2 3.85 % $ 65 $ 65 .8 2.37 % Maturing after one year through five years 19,058 18,598 4.4 2.38 18,247 17,688 4.1 2.17 Maturing after five years through ten years 18,987 18,648 6.4 2.81 22,280 21,891 6.2 2.84 Maturing after ten years 2,439 2,448 14.2 3.45 328 327 13.9 3.34 Total $ 40,544 $ 39,754 5.9 2.65 % $ 40,920 $ 39,971 5.3 2.54 % Asset-Backed Securities (a) Maturing in one year or less $ – $ – – – % $ – $ – – – % Maturing after one year through five years 397 403 3.5 3.69 3 4 3.3 3.19 Maturing after five years through ten years – – – – 2 3 5.6 3.29 Maturing after ten years – – – – – 1 15.6 3.20 Total $ 397 $ 403 3.5 3.69 % $ 5 $ 8 4.1 3.22 % Obligations of State and Political Subdivisions (b)(c) Maturing in one year or less $ 284 $ 287 .5 5.67 % $ – $ – .2 6.49 % Maturing after one year through five years 552 558 3.5 4.53 1 1 3.1 6.65 Maturing after five years through ten years 4,093 4,069 7.9 4.36 5 6 7.2 1.97 Maturing after ten years 1,907 1,787 19.1 4.09 – – – – Total $ 6,836 $ 6,701 10.4 4.35 % $ 6 $ 7 6.8 2.45 % Other Maturing in one year or less $ – $ – – – % $ 9 $ 9 .6 3.68 % Maturing after one year through five years – – – – 8 8 1.4 3.34 Maturing after five years through ten years – – – – – – – – Maturing after ten years – – – – – – – – Total $ – $ – – – % $ 17 $ 17 1.0 3.52 % Total investment securities (d) $ 67,381 $ 66,115 5.4 2.57 % $ 46,050 $ 44,964 5.2 2.46 % (a) Information related to asset and mortgage-backed securities included above is presented based upon weighted-average maturities that take into account anticipated future prepayments. (b) Information related to obligations of state and political subdivisions is presented based upon yield to first optional call date if the security is purchased at a premium, and yield to maturity if the security is purchased at par or a discount. (c) Maturity calculations for obligations of state and political subdivisions are based on the first optional call date for securities with a fair value above par and the contractual maturity date for securities with a fair value equal to or below par. (d) The weighted-average maturity of the available-for-sale held-to-maturity (e) Weighted-average yields for obligations of state and political subdivisions are presented on a fully-taxable equivalent basis based on a federal income tax rate of 21 percent for 2018 and 35 percent for 2017. Yields on available-for-sale held-to-maturity available-for-sale held-to-maturity. 2018 2017 At December 31 (Dollars in Millions) Amortized Percent Amortized Percent U.S. Treasury and agencies $ 24,706 21.8 % $ 28,767 25.5 % Mortgage-backed securities 81,464 71.8 77,606 68.6 Asset-backed securities 402 .4 419 .4 Obligations of state and political subdivisions 6,842 6.0 6,246 5.5 Other 17 – 41 – Total investment securities $ 113,431 100.0 % $ 113,079 100.0 %
Investment Securities Available-for-Sale	The amortized cost, other-than-temporary impairment recorded in other comprehensive income (loss), gross unrealized holding gains and losses, and fair value of held-to-maturity available-for-sale Available-for-sale U.S. Treasury and agencies $ 19,604 $ 11 $ – $ (358 ) $ 19,257 $ 23,586 $ 3 $ – $ (288 ) $ 23,301 Mortgage-backed securities Residential agency 40,542 120 – (910 ) 39,752 38,450 152 – (571 ) 38,031 Commercial agency 2 – – – 2 6 – – – 6 Other asset-backed securities 397 6 – – 403 413 6 – – 419 Obligations of state and political subdivisions 6,836 37 – (172 ) 6,701 6,240 147 – (29 ) 6,358 Other – – – – – 22 – – – 22 Total available-for-sale $ 67,381 $ 174 $ – $ (1,440 ) $ 66,115 $ 68,717 $ 308 $ – $ (888 ) $ 68,137 (a) Represents impairment not related to credit for those investment securities that have been determined to be other-than-temporarily impaired. (b) Represents unrealized losses on investment securities that have not been determined to be other-than-temporarily impaired.
Investment Securities Held-to-Maturity	The amortized cost, other-than-temporary impairment recorded in other comprehensive income (loss), gross unrealized holding gains and losses, and fair value of held-to-maturity available-for-sale 2018 2017 Unrealized Losses Unrealized Losses (Dollars in Millions) Amortized Unrealized Other-than- (a) Other (b) Fair Value Amortized Unrealized Other-than- (a) Other (b) Fair Value Held-to-maturity U.S. Treasury and agencies $ 5,102 $ 2 $ – $ (143 ) $ 4,961 $ 5,181 $ 5 $ – $ (120 ) $ 5,066 Residential agency mortgage-backed securities 40,920 45 – (994 ) 39,971 39,150 48 – (579 ) 38,619 Asset-backed securities Collateralized debt obligations/Collateralized loan obligations – 1 – – 1 – 4 – – 4 Other 5 2 – – 7 6 2 – – 8 Obligations of state and political subdivisions 6 1 – – 7 6 1 – – 7 Obligations of foreign governments 9 – – – 9 7 – – – 7 Other 8 – – – 8 12 – – – 12 Total held-to-maturity $ 46,050 $ 51 $ – $ (1,137 ) $ 44,964 $ 44,362 $ 60 $ – $ (699 ) $ 43,723 (a) Represents impairment not related to credit for those investment securities that have been determined to be other-than-temporarily impaired. (b) Represents unrealized losses on investment securities that have not been determined to be other-than-temporarily impaired.
Amount of Interest Income from Taxable and Non-Taxable Investment Securities	The following table provides information about the amount of interest income from taxable and non-taxable Year Ended December 31 (Dollars in Millions) 2018 2017 2016 Taxable $ 2,396 $ 2,043 $ 1,878 Non-taxable 220 189 200 Total interest income from investment securities $ 2,616 $ 2,232 $ 2,078
Amount of Gross Gains and Losses Realized through Sales of Available-for-Sale Investment Securities	The following table provides information about the amount of gross gains and losses realized through the sales of available-for-sale Year Ended December 31 (Dollars in Millions) 2018 2017 2016 Realized gains $ 30 $ 75 $ 93 Realized losses – (18 ) (66 ) Net realized gains (losses) $ 30 $ 57 $ 27 Income tax (benefit) on net realized gains (losses) $ 7 $ 22 $ 10
Gross Unrealized Losses and Fair Value of Company's Investment Securities	The following table shows the gross unrealized losses and fair value of the Company’s investment securities with unrealized losses, aggregated by investment category and length of time the individual investment securities have been in continuous unrealized loss positions, at December 31, 2018: Less Than 12 Months 12 Months or Greater Total (Dollars in Millions) Fair Unrealized Fair Value Unrealized Fair Value Unrealized Held-to-maturity U.S. Treasury and agencies $ 182 $ (1 ) $ 4,639 $ (142 ) $ 4,821 $ (143 ) Residential agency mortgage-backed securities 7,878 (83 ) 25,570 (911 ) 33,448 (994 ) Other asset-backed securities — — 2 — 2 — Obligations of foreign governments 1 — — — 1 — Other — — 8 — 8 — Total held-to-maturity $ 8,061 $ (84 ) $ 30,219 $ (1,053 ) $ 38,280 $ (1,137 ) Available-for-sale U.S. Treasury and agencies $ 118 $ — $ 17,828 $ (358 ) $ 17,946 $ (358 ) Residential agency mortgage-backed securities 6,269 (45 ) 23,694 (865 ) 29,963 (910 ) Commercial agency mortgage-backed securities 2 — — — 2 — Obligations of state and political subdivisions 2,623 (60 ) 1,363 (112 ) 3,986 (172 ) Total available-for-sale $ 9,012 $ (105 ) $ 42,885 $ (1,335 ) $ 51,897 $ (1,440 )

Loans and Allowance for Credi_2

Loans and Allowance for Credit Losses (Tables)	12 Months Ended
	Dec. 31, 2018
Receivables [Abstract]
Commercial Loans by Industry Group and Geography Excluding Covered Loans	TABLE 7 Commercial Loans by Industry Group and Geography 2018 2017 At December 31 (Dollars in Millions) Loans Percent Loans Percent Industry Group Manufacturing $ 15,064 14.7 % $ 14,710 15.1 % Real estate, rental and leasing 12,270 12.0 12,461 12.8 Finance and insurance 10,301 10.0 8,639 8.8 Wholesale trade 8,310 8.1 7,383 7.6 Retail trade 8,211 8.0 8,952 9.2 Healthcare and social assistance 5,769 5.6 6,517 6.7 Public administration 4,773 4.7 5,116 5.2 Arts, entertainment and recreation 4,089 4.0 3,853 3.9 Information 3,576 3.5 3,403 3.5 Transport and storage 3,559 3.5 3,198 3.3 Professional, scientific and technical services 3,358 3.3 3,499 3.6 Educational services 3,139 3.1 3,414 3.5 Utilities 2,760 2.7 1,933 2.0 Other services 1,691 1.6 1,698 1.7 Mining 1,636 1.6 1,590 1.6 Agriculture, forestry, fishing and hunting 1,235 1.2 1,429 1.5 Other 12,703 12.4 9,766 10.0 Total $ 102,444 100.0 % $ 97,561 100.0 % Geography California $ 13,507 13.2 % $ 14,086 14.4 % Colorado 4,071 4.0 3,979 4.1 Illinois 5,356 5.2 5,245 5.4 Minnesota 7,832 7.6 7,406 7.6 Missouri 3,274 3.2 3,525 3.6 Ohio 4,913 4.8 4,330 4.5 Oregon 2,135 2.1 2,044 2.1 Washington 3,672 3.6 3,699 3.8 Wisconsin 3,630 3.5 3,539 3.6 Iowa, Kansas, Nebraska, North Dakota, South Dakota 5,094 5.0 4,806 4.9 Arkansas, Indiana, Kentucky, Tennessee 5,488 5.3 5,206 5.3 Idaho, Montana, Wyoming 1,114 1.1 1,225 1.3 Arizona, Nevada, New Mexico, Utah 4,183 4.1 3,836 3.9 Total banking region 64,269 62.7 62,926 64.5 Florida, Michigan, New York, Pennsylvania, Texas 18,031 17.6 16,408 16.8 All other states 20,144 19.7 18,227 18.7 Total outside Company’s banking region 38,175 37.3 34,635 35.5 Total $ 102,444 100.0 % $ 97,561 100.0 %
Commercial Real Estate Loans by Property Type and Geography Excluding Covered Loans	TABLE 8 Commercial Real Estate Loans by Property Type and Geography 2018 2017 At December 31 (Dollars in Millions) Loans Percent Loans Percent Property Type Business owner occupied $ 9,769 24.7 % $ 10,205 25.2 % Commercial property Industrial 1,695 4.3 1,580 3.9 Office 5,351 13.5 5,023 12.4 Retail 4,150 10.5 4,502 11.1 Other commercial 3,399 8.6 3,757 9.3 Multi-family 8,592 21.7 8,922 22.0 Hotel/motel 3,520 8.9 3,719 9.2 Residential homebuilders 2,764 7.0 2,489 6.2 Healthcare facilities 299 .8 266 .7 Total $ 39,539 100.0 % $ 40,463 100.0 % Geography California $ 9,784 24.7 % $ 9,558 23.6 % Colorado 1,883 4.8 1,764 4.4 Illinois 1,484 3.8 1,605 4.0 Minnesota 1,896 4.8 2,031 5.0 Missouri 1,157 2.9 1,359 3.3 Ohio 1,278 3.2 1,445 3.6 Oregon 1,718 4.3 1,847 4.6 Washington 3,383 8.6 3,499 8.6 Wisconsin 1,892 4.8 2,036 5.0 Iowa, Kansas, Nebraska, North Dakota, South Dakota 2,085 5.3 2,210 5.5 Arkansas, Indiana, Kentucky, Tennessee 2,045 5.2 1,889 4.7 Idaho, Montana, Wyoming 962 2.4 1,163 2.9 Arizona, Nevada, New Mexico, Utah 3,130 7.9 3,134 7.7 Total banking region 32,697 82.7 33,540 82.9 Florida, Michigan, New York, Pennsylvania, Texas 3,613 9.1 3,688 9.1 All other states 3,229 8.2 3,235 8.0 Total outside Company’s banking region 6,842 17.3 6,923 17.1 Total $ 39,539 100.0 % $ 40,463 100.0 %
Summary of Nonperforming Assets	TABLE 16 Nonperforming Assets (a) At December 31 (Dollars in Millions) 2018 2017 2016 2015 2014 Commercial Commercial $ 186 $ 225 $ 443 $ 160 $ 99 Lease financing 23 24 40 14 13 Total commercial 209 249 483 174 112 Commercial Real Estate Commercial mortgages 76 108 87 92 175 Construction and development 39 34 37 35 84 Total commercial real estate 115 142 124 127 259 Residential Mortgages (b) 296 442 595 712 864 Credit Card – 1 3 9 30 Other Retail Retail leasing 12 8 2 3 1 Home equity and second mortgages 145 126 128 136 170 Other 40 34 27 23 16 Total other retail 197 168 157 162 187 Covered Loans – 6 6 8 14 Total nonperforming loans 817 1,008 1,368 1,192 1,466 Other Real Estate (c) 111 141 186 280 288 Covered Other Real Estate – 21 26 32 37 Other Assets 61 30 23 19 17 Total nonperforming assets $ 989 $ 1,200 $ 1,603 $ 1,523 $ 1,808 Accruing loans 90 days or more past due (b) $ 584 $ 720 $ 764 $ 831 $ 945 Nonperforming loans to total loans .28 % .36 % .50 % .46 % .59 % Nonperforming assets to total loans plus other real estate (c) .34 % .43 % .59 % .58 % .73 % Changes in Nonperforming Assets (Dollars in Millions) Commercial and Residential Mortgages, Total Balance December 31, 2017 $ 404 $ 796 $ 1,200 Additions to nonperforming assets New nonaccrual loans and foreclosed properties 427 370 797 Advances on loans 18 4 22 Total additions 445 374 819 Reductions in nonperforming assets Paydowns, payoffs (167 ) (149 ) (316 ) Net sales (131 ) (160 ) (291 ) Return to performing status (20 ) (181 ) (201 ) Charge-offs (d) (193 ) (29 ) (222 ) Total reductions (511 ) (519 ) (1,030 ) Net additions to (reductions in) nonperforming assets (66 ) (145 ) (211 ) Balance December 31, 2018 $ 338 $ 651 $ 989 (a) Throughout this document, nonperforming assets and related ratios do not include accruing loans 90 days or more past due. (b) Excludes $1.7 billion, $1.9 billion, $2.5 billion, $2.9 billion and $3.1 billion at December 31, 2018, 2017, 2016, 2015 and 2014, respectively, of loans purchased from GNMA mortgage pools that are 90 days or more past due that continue to accrue interest, as their repayments are primarily insured by the Federal Housing Administration or guaranteed by the United States Department of Veterans Affairs. (c) Foreclosed GNMA loans of $235 million, $267 million, $373 million, $535 million and $641 million at December 31, 2018, 2017, 2016, 2015 and 2014, respectively, continue to accrue interest and are recorded as other assets and excluded from nonperforming assets because they are insured by the Federal Housing Administration or guaranteed by the United States Department of Veterans Affairs. (d) Charge-offs exclude actions for certain card products and loan sales that were not classified as nonperforming at the time the charge-off
Composition of Loan Portfolio	The composition of the loan portfolio at December 31, disaggregated by class and underlying specific portfolio type, was as follows: (Dollars in Millions) 2018 2017 Commercial Commercial $ 96,849 $ 91,958 Lease financing 5,595 5,603 Total commercial 102,444 97,561 Commercial Real Estate Commercial mortgages 28,596 29,367 Construction and development 10,943 11,096 Total commercial real estate 39,539 40,463 Residential Mortgages Residential mortgages 53,034 46,685 Home equity loans, first liens 12,000 13,098 Total residential mortgages 65,034 59,783 Credit Card 23,363 22,180 Other Retail Retail leasing 8,546 7,988 Home equity and second mortgages 16,122 16,327 Revolving credit 3,088 3,183 Installment 9,676 8,989 Automobile 18,719 18,934 Student (a) 279 1,903 Total other retail 56,430 57,324 Covered Loans (b) — 3,121 Total loans $ 286,810 $ 280,432 (a) During 2018, the Company sold all of its federally guaranteed student loans. (b) During 2018, the majority of the Company’s covered loans were sold and the loss share coverage expired. As of December 31, 2018, any remaining loan balances were reclassified to be included in their respective portfolio category.
Activity in Allowance for Credit Losses by Portfolio Class	Activity in the allowance for credit losses by portfolio class was as follows: (Dollars in Millions) Commercial Commercial Residential Credit Other Covered Total Balance at December 31, 2017 $ 1,372 $ 831 $ 449 $ 1,056 $ 678 $ 31 $ 4,417 Add Provision for credit losses 333 (50 ) 23 892 211 (30 ) 1,379 Deduct Loans charged-off 350 9 48 970 383 – 1,760 Less recoveries of loans charged-off (99 ) (28 ) (31 ) (124 ) (124 ) – (406 ) Net loans charged-off 251 (19 ) 17 846 259 – 1,354 Other changes (a) – – – – – (1 ) (1 ) Balance at December 31, 2018 $ 1,454 $ 800 $ 455 $ 1,102 $ 630 $ – $ 4,441 Balance at December 31, 2016 $ 1,450 $ 812 $ 510 $ 934 $ 617 $ 34 $ 4,357 Add Provision for credit losses 186 19 (24 ) 908 304 (3 ) 1,390 Deduct Loans charged-off 414 30 65 887 355 – 1,751 Less recoveries of loans charged-off (150 ) (30 ) (28 ) (101 ) (112 ) – (421 ) Net loans charged-off 264 – 37 786 243 – 1,330 Balance at December 31, 2017 $ 1,372 $ 831 $ 449 $ 1,056 $ 678 $ 31 $ 4,417 Balance at December 31, 2015 $ 1,287 $ 724 $ 631 $ 883 $ 743 $ 38 $ 4,306 Add Provision for credit losses 488 75 (61 ) 728 95 (1 ) 1,324 Deduct Loans charged-off 417 22 85 759 332 – 1,615 Less recoveries of loans charged-off (92 ) (35 ) (25 ) (83 ) (111 ) – (346 ) Net loans charged-off 325 (13 ) 60 676 221 – 1,269 Other changes (a) – – – (1 ) – (3 ) (4 ) Balance at December 31, 2016 $ 1,450 $ 812 $ 510 $ 934 $ 617 $ 34 $ 4,357 (a) Includes net changes in credit losses to be reimbursed by the FDIC and reductions in the allowance for covered loans where the reversal of a previously recorded allowance was offset by an associated decrease in the indemnification asset, and the impact of any loan sales.
Additional Detail of Allowance for Credit Losses and Related Loan Balances by Portfolio Class	Additional detail of the allowance for credit losses by portfolio class was as follows: (Dollars in Millions) Commercial Commercial Residential Credit Other Covered Total Allowance Balance at December 31, 2018 Related to Loans individually evaluated for impairment (a) $ 16 $ 8 $ – $ – $ – $ – $ 24 TDRs collectively evaluated for impairment 15 3 126 69 12 – 225 Other loans collectively evaluated for impairment 1,423 788 314 1,033 618 – 4,176 Loans acquired with deteriorated credit quality – 1 15 – – – 16 Total allowance for credit losses $ 1,454 $ 800 $ 455 $ 1,102 $ 630 $ – $ 4,441 Allowance Balance at December 31, 2017 Related to Loans individually evaluated for impairment (a) $ 23 $ 4 $ – $ – $ – $ – $ 27 TDRs collectively evaluated for impairment 14 4 139 60 19 1 237 Other loans collectively evaluated for impairment 1,335 818 310 996 659 – 4,118 Loans acquired with deteriorated credit quality – 5 – – – 30 35 Total allowance for credit losses $ 1,372 $ 831 $ 449 $ 1,056 $ 678 $ 31 $ 4,417 (a) Represents the allowance for credit losses related to loans greater than $5 million classified as nonperforming or TDRs. Additional detail of loan balances by portfolio class was as follows: (Dollars in Millions) Commercial Commercial Residential Credit Other Covered Total Loans December 31, 2018 Loans individually evaluated for impairment (a) $ 262 $ 86 $ – $ – $ – $ – $ 348 TDRs collectively evaluated for impairment 151 129 3,252 245 183 – 3,960 Other loans collectively evaluated for impairment 102,031 39,297 61,465 23,118 56,247 – 282,158 Loans acquired with deteriorated credit quality – 27 317 – – – 344 Total loans $ 102,444 $ 39,539 $ 65,034 $ 23,363 $ 56,430 $ – $ 286,810 December 31, 2017 Loans individually evaluated for impairment (a) $ 337 $ 71 $ – $ – $ – $ – $ 408 TDRs collectively evaluated for impairment 148 145 3,524 230 186 36 4,269 Other loans collectively evaluated for impairment 97,076 40,174 56,258 21,950 57,138 1,073 273,669 Loans acquired with deteriorated credit quality – 73 1 – – 2,012 2,086 Total loans $ 97,561 $ 40,463 $ 59,783 $ 22,180 $ 57,324 $ 3,121 $ 280,432 (a) Represents loans greater than $5 million classified as nonperforming or TDRs. (b) Includes expected reimbursements from the FDIC under loss sharing agreements.
Summary of Loans by Portfolio Class, Including Delinquency Status of those that Continue to Accrue Interest and are Nonperforming	The following table provides a summary of loans by portfolio class, including the delinquency status of those that continue to accrue interest, and those that are nonperforming: Accruing (Dollars in Millions) Current 30-89 Days 90 Days or Nonperforming Total December 31, 2018 Commercial $ 101,844 $ 322 $ 69 $ 209 $ 102,444 Commercial real estate 39,354 70 – 115 39,539 Residential mortgages (a) 64,443 181 114 296 65,034 Credit card 22,746 324 293 – 23,363 Other retail 55,722 403 108 197 56,430 Total loans $ 284,109 $ 1,300 $ 584 $ 817 $ 286,810 December 31, 2017 Commercial $ 97,005 $ 250 $ 57 $ 249 $ 97,561 Commercial real estate 40,279 36 6 142 40,463 Residential mortgages (a) 59,013 198 130 442 59,783 Credit card 21,593 302 284 1 22,180 Other retail 56,685 376 95 168 57,324 Covered loans 2,917 50 148 6 3,121 Total loans $ 277,492 $ 1,212 $ 720 $ 1,008 $ 280,432 (a) At December 31, 2018, $430 million of loans 30–89 days past due and $1.7 billion of loans 90 days or more past due purchased from Government National Mortgage Association (“GNMA”) mortgage pools whose repayments are insured by the Federal Housing Administration or guaranteed by the United States Department of Veterans Affairs, were classified as current, compared with $385 million and $1.9 billion at December 31, 2017, respectively.
Summary of Loans by Portfolio Class and Company's Internal Credit Quality Rating	The following table provides a summary of loans by portfolio class and the Company’s internal credit quality rating: Criticized (Dollars in Millions) Pass Special Classified (a) Total Total December 31, 2018 Commercial $ 100,014 $ 1,149 $ 1,281 $ 2,430 $ 102,444 Commercial real estate 38,473 584 482 1,066 39,539 Residential mortgages (b) 64,570 1 463 464 65,034 Credit card 23,070 – 293 293 23,363 Other retail 56,101 6 323 329 56,430 Total loans $ 282,228 $ 1,740 $ 2,842 $ 4,582 $ 286,810 Total outstanding commitments $ 600,407 $ 2,801 $ 3,448 $ 6,249 $ 606,656 December 31, 2017 Commercial $ 95,297 $ 1,130 $ 1,134 $ 2,264 $ 97,561 Commercial real estate 39,162 648 653 1,301 40,463 Residential mortgages (b) 59,141 16 626 642 59,783 Credit card 21,895 – 285 285 22,180 Other retail 57,009 6 309 315 57,324 Covered loans 3,072 – 49 49 3,121 Total loans $ 275,576 $ 1,800 $ 3,056 $ 4,856 $ 280,432 Total outstanding commitments $ 584,072 $ 3,142 $ 3,987 $ 7,129 $ 591,201 (a) Classified rating on consumer loans primarily based on delinquency status. (b) At December 31, 2018, $1.7 billion of GNMA loans 90 days or more past due and $1.6 billion of restructured GNMA loans whose repayments are insured by the Federal Housing Administration or guaranteed by the United States Department of Veterans Affairs were classified with a pass rating, compared with $1.9 billion and $1.7 billion at December 31, 2017, respectively.
Summary of Impaired Loans, which Include Nonaccrual and TDR Loans, by Portfolio Class	A summary of impaired loans, which include all nonaccrual and TDR loans, by portfolio class was as follows: (Dollars in Millions) Period-end Recorded Investment (a) Unpaid Valuation Commitments December 31, 2018 Commercial $ 467 $ 1,006 $ 32 $ 106 Commercial real estate 279 511 12 2 Residential mortgages 1,709 1,879 86 – Credit card 245 245 69 – Other retail 335 418 14 5 Total loans, excluding loans purchased from GNMA mortgage pools 3,035 4,059 213 113 Loans purchased from GNMA mortgage pools 1,639 1,639 41 – Total $ 4,674 $ 5,698 $ 254 $ 113 December 31, 2017 Commercial $ 550 $ 915 $ 44 $ 199 Commercial real estate 280 596 11 – Residential mortgages 1,946 2,339 116 1 Credit card 230 230 60 – Other retail 302 400 22 4 Covered loans 38 44 1 – Total loans, excluding loans purchased from GNMA mortgage pools 3,346 4,524 254 204 Loans purchased from GNMA mortgage pools 1,681 1,681 25 – Total $ 5,027 $ 6,205 $ 279 $ 204 (a) Substantially all loans classified as impaired at December 31, 2018 and 2017, had an associated allowance for credit losses. The total amount of interest income recognized during 2018 on loans classified as impaired at December 31, 2018, excluding those acquired with deteriorated credit quality, was $164 million, compared to what would have been recognized at the original contractual terms of the loans of $226 million.
Impaired Loans Average Recorded Investment and Interest Income Recognized	Additional information on impaired loans for the years ended December 31 follows: (Dollars in Millions) Average Interest 2018 Commercial $ 497 $ 8 Commercial real estate 273 13 Residential mortgages 1,817 76 Credit card 236 3 Other retail 309 16 Covered loans 25 1 Total loans, excluding loans purchased from GNMA mortgage pools 3,157 117 Loans purchased from GNMA mortgage pools 1,640 47 Total $ 4,797 $ 164 2017 Commercial $ 683 $ 7 Commercial real estate 273 11 Residential mortgages 2,135 103 Credit card 229 3 Other retail 287 14 Covered loans 37 1 Total loans, excluding loans purchased from GNMA mortgage pools 3,644 139 Loans purchased from GNMA mortgage pools 1,672 65 Total $ 5,316 $ 204 2016 Commercial $ 799 $ 9 Commercial real estate 324 15 Residential mortgages 2,422 124 Credit card 214 4 Other retail 293 13 Covered loans 38 1 Total loans, excluding loans purchased from GNMA mortgage pools 4,090 166 Loans purchased from GNMA mortgage pools 1,620 71 Total $ 5,710 $ 237
Summary of Loans Modified as TDRs	The following table provides a summary of loans modified as TDRs for the years ended December 31, by portfolio class: (Dollars in Millions) Number Pre-Modification Balance Post-Modification Balance 2018 Commercial 2,824 $ 336 $ 311 Commercial real estate 127 168 169 Residential mortgages 526 73 69 Credit card 33,318 169 171 Other retail 2,462 58 55 Covered loans 3 1 1 Total loans, excluding loans purchased from GNMA mortgage pools 39,260 805 776 Loans purchased from GNMA mortgage pools 6,268 821 803 Total loans 45,528 $ 1,626 $ 1,579 2017 Commercial 2,758 $ 380 $ 328 Commercial real estate 128 82 78 Residential mortgages 800 90 88 Credit card 33,615 161 162 Other retail 3,881 79 68 Covered loans 11 2 2 Total loans, excluding loans purchased from GNMA mortgage pools 41,193 794 726 Loans purchased from GNMA mortgage pools 6,791 881 867 Total loans 47,984 $ 1,675 $ 1,593 2016 Commercial 2,352 $ 844 $ 699 Commercial real estate 102 259 256 Residential mortgages 1,576 168 178 Credit card 31,394 151 153 Other retail 2,235 41 40 Covered loans 39 6 7 Total loans, excluding loans purchased from GNMA mortgage pools 37,698 1,469 1,333 Loans purchased from GNMA mortgage pools 11,260 1,274 1,267 Total loans 48,958 $ 2,743 $ 2,600
Summary of Loans Modified as TDRs in the Past Twelve Months that have Subsequently Defaulted	The following table provides a summary of TDR loans that defaulted (fully or partially charged-off (Dollars in Millions) Number Amount 2018 Commercial 836 $ 71 Commercial real estate 39 15 Residential mortgages 191 18 Credit card 8,012 35 Other retail 334 5 Covered loans 1 – Total loans, excluding loans purchased from GNMA mortgage pools 9,413 144 Loans purchased from GNMA mortgage pools 1,447 187 Total loans 10,860 $ 331 2017 Commercial 724 $ 53 Commercial real estate 36 9 Residential mortgages 374 41 Credit card 8,372 36 Other retail 415 5 Covered loans 4 – Total loans, excluding loans purchased from GNMA mortgage pools 9,925 144 Loans purchased from GNMA mortgage pools 1,369 177 Total loans 11,294 $ 321 2016 Commercial 531 $ 24 Commercial real estate 27 12 Residential mortgages 132 17 Credit card 6,827 30 Other retail 434 9 Covered loans 4 1 Total loans, excluding loans purchased from GNMA mortgage pools 7,955 93 Loans purchased from GNMA mortgage pools 202 25 Total loans 8,157 $ 118

Leases (Tables)

Leases (Tables)	12 Months Ended
	Dec. 31, 2018
Leases [Abstract]
Components of Net Investment in Sales-Type and Direct Financing Leases	The components of the net investment in sales-type and direct financing leases at December 31 were as follows: (Dollars in Millions) 2018 2017 Aggregate future minimum lease payments to be received $ 13,222 $ 12,709 Unguaranteed residual values accruing to the lessor’s benefit 1,877 1,731 Unearned income (1,272 ) (1,205 ) Initial direct costs 257 274 Total net investment in sales-type and direct financing leases (a) $ 14,084 $ 13,509 (a) The accumulated allowance for uncollectible minimum lease payments was $90 million and $94 million at December 31, 2018 and 2017, respectively.
Minimum Future Lease Payments to be Received from Sales-Type and Direct Financing Leases	The minimum future lease payments to be received from sales-type and direct financing leases were as follows at December 31, 2018: (Dollars in Millions) 2019 $ 4,264 2020 4,146 2021 2,777 2022 1,177 2023 335 Thereafter 523

Accounting for Transfers and _2

Accounting for Transfers and Servicing of Financial Assets and Variable Interest Entities (Tables)	12 Months Ended
	Dec. 31, 2018
Accounting Policies [Abstract]
Summary of Investments in Community Development and Tax-advantaged VIEs	The following table provides a summary of investments in community development and tax-advantaged At December 31 (Dollars in Millions) 2018 2017 Investment carrying amount $ 5,823 $ 5,660 Unfunded capital and other commitments 2,778 2,770 Maximum exposure to loss 12,360 12,120

Premises and Equipment (Tables)

Premises and Equipment (Tables)	12 Months Ended
	Dec. 31, 2018
Property, Plant and Equipment [Abstract]
Premises and Equipment	Premises and equipment at December 31 consisted of the following: (Dollars in Millions) 2018 2017 Land $ 515 $ 520 Buildings and improvements 3,481 3,425 Furniture, fixtures and equipment 3,110 2,951 Capitalized building and equipment leases 121 130 Construction in progress 20 35 7,247 7,061 Less accumulated depreciation and amortization (4,790 ) (4,629 ) Total $ 2,457 $ 2,432

Mortgage Servicing Rights (Tabl

Mortgage Servicing Rights (Tables)	12 Months Ended
	Dec. 31, 2018
Text Block [Abstract]
Changes in Fair Value of Capitalized MSRs	Changes in fair value of capitalized MSRs for the years ended December 31, are summarized as follows: (Dollars in Millions) 2018 2017 2016 Balance at beginning of period $ 2,645 $ 2,591 $ 2,512 Rights purchased 8 13 43 Rights capitalized 397 445 524 Rights sold (27 ) – – Changes in fair value of MSRs Due to fluctuations in market interest rates (a) 98 (23 ) (55 ) Due to revised assumptions or models (b) 56 18 19 Other changes in fair value (c) (386 ) (399 ) (452 ) Balance at end of period $ 2,791 $ 2,645 $ 2,591 (a) Includes changes in MSR value associated with changes in market interest rates, including estimated prepayment rates and anticipated earnings on escrow deposits. (b) Includes changes in MSR value not caused by changes in market interest rates, such as changes in cost to service, ancillary income and option adjusted spread, as well as the impact of any model changes. (c) Primarily represents changes due to realization of expected cash flows over time (decay).
Sensitivity to Changes in Interest Rates of the Fair Value of MSR Portfolio and Related Derivative Instruments	The estimated sensitivity to changes in interest rates of the fair value of the MSR portfolio and the related derivative instruments as of December 31 follows: 2018 2017 (Dollars in Millions) Down Down Down Up Up 50 bps Up Down Down Down Up Up 50 bps Up MSR portfolio $ (501 ) $ (223 ) $ (105 ) $ 92 $ 171 $ 295 $ (520 ) $ (231 ) $ (109 ) $ 95 $ 177 $ 302 Derivative instrument hedges 455 215 104 (94 ) (177 ) (321 ) 453 216 105 (96 ) (184 ) (336 ) Net sensitivity $ (46 ) $ (8 ) $ (1 ) $ (2 ) $ (6 ) $ (26 ) $ (67 ) $ (15 ) $ (4 ) $ (1 ) $ (7 ) $ (34 )
MSRs and Related Characteristics by Portfolio	A summary of the Company’s MSRs and related characteristics by portfolio as of December 31 follows: 2018 2017 (Dollars in Millions) HFA Government Conventional (d) Total HFA Government Conventional (d) Total Servicing portfolio (a) $ 44,384 $ 35,990 $ 148,910 $ 229,284 $ 40,737 $ 36,756 $ 155,353 $ 232,846 Fair value $ 526 $ 465 $ 1,800 $ 2,791 $ 450 $ 428 $ 1,767 $ 2,645 Value (bps) (b) 119 129 121 122 110 116 114 114 Weighted-average servicing fees (bps) 34 36 27 30 35 34 27 29 Multiple (value/servicing fees) 3.45 3.63 4.52 4.11 3.17 3.38 4.24 3.86 Weighted-average note rate 4.59 % 3.97 % 4.06 % 4.15 % 4.43 % 3.92 % 4.02 % 4.08 % Weighted-average age (in years) 3.3 4.7 4.5 4.3 3.0 4.3 4.2 4.0 Weighted-average expected prepayment (constant prepayment rate) 9.8 % 11.0 % 9.1 % 9.5 % 9.8 % 11.6 % 9.7 % 10.0 % Weighted-average expected life (in years) 7.7 6.7 7.1 7.2 7.7 6.5 6.9 7.0 Weighted-average option adjusted spread (c) 8.6 % 8.3 % 7.2 % 7.6 % 9.9 % 9.2 % 7.2 % 8.0 % (a) Represents principal balance of mortgages having corresponding MSR asset. (b) Calculated as fair value divided by the servicing portfolio. (c) Option adjusted spread is the incremental spread added to the risk-free rate to reflect optionality and other risk inherent in the MSRs. (d) Represents loans sold primarily to GSEs.

Intangible Assets (Tables)

Intangible Assets (Tables)	12 Months Ended
	Dec. 31, 2018
Goodwill and Intangible Assets Disclosure [Abstract]
Intangible Assets	Intangible assets consisted of the following: At December 31 (Dollars in Millions) Estimated Life (a) Amortization (b) Balance 2018 2017 Goodwill (c) $ 9,369 $ 9,434 Merchant processing contracts 6 years/8 years SL/AC 155 89 Core deposit benefits 22 years/5 years SL/AC 104 131 Mortgage servicing rights (c) 2,791 2,645 Trust relationships 10 years/7 years SL/AC 34 45 Other identified intangibles 5 years/4 years SL/AC 308 318 Total $ 12,761 $ 12,662 (a) Estimated life represents the amortization period for assets subject to the straight line method and the weighted average or life of the underlying cash flows amortization period for intangibles subject to accelerated methods. If more than one amortization method is used for a category, the estimated life for each method is calculated and reported separately. (b) Amortization methods: SL = straight line method AC = accelerated methods generally based on cash flows (c) Goodwill is evaluated for impairment, but not amortized. Mortgage servicing rights are recorded at fair value, and are not amortized.
Aggregate Amortization Expense	Aggregate amortization expense consisted of the following: Year Ended December 31 (Dollars in Millions) 2018 2017 2016 Merchant processing contracts $ 24 $ 24 $ 28 Core deposit benefits 26 30 34 Trust relationships 11 14 16 Other identified intangibles 100 107 101 Total $ 161 $ 175 $ 179
Estimated Amortization Expense	The estimated amortization expense for the next five years is as follows: (Dollars in Millions) 2019 $ 141 2020 113 2021 90 2022 74 2023 45
Changes in Carrying Value of Goodwill	The following table reflects the changes in the carrying value of goodwill for the years ended December 31, 2018, 2017 and 2016: (Dollars in Millions) Corporate and Consumer and Wealth Management and Payment Treasury and Consolidated Balance at December 31, 2015 $ 1,647 $ 3,681 $ 1,567 $ 2,466 $ – $ 9,361 Foreign exchange translation and other – – (1 ) (16 ) – (17 ) Balance at December 31, 2016 $ 1,647 $ 3,681 $ 1,566 $ 2,450 $ – $ 9,344 Goodwill acquired – – – 62 – 62 Foreign exchange translation and other – – 3 25 – 28 Balance at December 31, 2017 $ 1,647 $ 3,681 $ 1,569 $ 2,537 $ – $ 9,434 Goodwill acquired – – – 105 – 105 Disposal – (155 ) – – – (155 ) Foreign exchange translation and other – (51 ) 49 (13 ) – (15 ) Balance at December 31, 2018 $ 1,647 $ 3,475 $ 1,618 $ 2,629 $ – $ 9,369

Deposits (Tables)

Deposits (Tables)	12 Months Ended
	Dec. 31, 2018
Banking and Thrift [Abstract]
Composition of Deposits	The composition of deposits at December 31 was as follows: (Dollars in Millions) 2018 2017 Noninterest-bearing deposits $ 81,811 $ 87,557 Interest-bearing deposits Interest checking 73,994 74,520 Money market savings 100,396 107,973 Savings accounts 44,720 43,809 Time deposits 44,554 33,356 Total interest-bearing deposits 263,664 259,658 Total deposits $ 345,475 $ 347,215
Maturities of Time Deposits Outstanding	The maturities of time deposits outstanding at December 31, 2018 were as follows: (Dollars in Millions) 2019 $ 38,272 2020 3,214 2021 1,740 2022 726 2023 598 Thereafter 4 Total $ 44,554

Short-Term Borrowings (Tables)

Short-Term Borrowings (Tables)	12 Months Ended
	Dec. 31, 2018
Debt Disclosure [Abstract]
Summary of Short-Term Borrowings	The following table is a summary of short-term borrowings for the last three years: 2018 2017 2016 (Dollars in Millions) Amount Rate Amount Rate Amount Rate At year-end Federal funds purchased $ 458 2.05 % $ 252 .77 % $ 447 .30 % Securities sold under agreements to repurchase 2,582 2.20 803 .61 801 .12 Commercial paper 6,940 1.35 8,303 .68 10,010 .30 Other short-term borrowings 4,159 2.68 7,293 2.13 2,705 1.00 Total $ 14,139 1.92 % $ 16,651 1.31 % $ 13,963 .43 % Average for the year Federal funds purchased $ 1,070 1.70 % $ 528 .86 % $ 1,015 .30 % Securities sold under agreements to repurchase 2,279 1.87 917 .44 891 .18 Commercial paper 6,929 .94 8,236 .49 14,827 .26 Other short-term borrowings 11,512 2.27 5,341 1.90 3,173 1.67 Total $ 21,790 1.78 % $ 15,022 1.00 % $ 19,906 .48 % Maximum month-end Federal funds purchased $ 4,532 $ 600 $ 2,487 Securities sold under agreements to repurchase 3,225 927 1,177 Commercial paper 7,846 9,950 21,441 Other short-term borrowings 16,588 7,293 6,771 (a) Interest and rates are presented on a fully taxable-equivalent basis utilizing a tax rate of 21 percent for 2018 and 35 percent for 2017 and 2016.

Long-Term Debt (Tables)

Long-Term Debt (Tables)	12 Months Ended
	Dec. 31, 2018
Debt Disclosure [Abstract]
Summary of Long-term Debt	Long-term debt (debt with original maturities of more than one year) at December 31 consisted of the following: (Dollars in Millions) Rate Rate (a) Maturity Date 2018 2017 U.S. Bancorp (Parent Company) Subordinated notes Fixed 2.950 % 2022 $ 1,300 $ 1,300 Fixed 3.600 % 2024 1,000 1,000 Fixed 7.500 % 2026 199 199 Fixed 3.100 % 2026 1,000 1,000 Medium-term notes Fixed .850% - 4.125 % 2019 - 2028 12,345 11,299 Floating 2.890% - 3.127 % 2019 - 2022 500 1,000 Other (b) (53 ) (29 ) Subtotal 16,291 15,769 Subsidiaries Federal Home Loan Bank advances Fixed 1.250% - 8.250 % 2019 - 2026 307 208 Floating 2.650% - 3.175 % 2019 - 2026 4,272 5,272 Bank notes Fixed 1.400% - 3.450 % 2019 - 2025 11,600 6,200 Floating 2.177% - 3.009 % 2019 - 2058 7,864 3,810 Other (c) 1,006 1,000 Subtotal 25,049 16,490 Total $ 41,340 $ 32,259 (a) Weighted-average interest rates of medium-term notes, Federal Home Loan Bank advances and bank notes were 2.84 percent, 2.96 percent and 2.63 percent, respectively. (b) Includes debt issuance fees and unrealized gains and losses and deferred amounts relating to derivative instruments. (c) Includes consolidated community development and tax-advantaged
Maturities of Long-term Debt Outstanding	Maturities of long-term debt outstanding at December 31, 2018, were: (Dollars in Millions) Parent Consolidated 2019 $ 1,497 $ 8,080 2020 – 6,407 2021 2,696 6,719 2022 3,793 4,082 2023 – 2,004 Thereafter 8,305 14,048 Total $ 16,291 $ 41,340

Shareholder' Equity (Tables)

Shareholder' Equity (Tables)	12 Months Ended
	Dec. 31, 2018
Federal Home Loan Banks [Abstract]
Number of Shares Issued and Outstanding and Carrying Amount of Preferred Stock	The number of shares issued and outstanding and the carrying amount of each outstanding series of the Company’s preferred stock were as follows: 2018 2017 At December 31 (Dollars in Millions) Shares Liquidation Discount Carrying Shares Liquidation Discount Carrying Series A 12,510 $ 1,251 $ 145 $ 1,106 12,510 $ 1,251 $ 145 $ 1,106 Series B 40,000 1,000 – 1,000 40,000 1,000 – 1,000 Series F 44,000 1,100 12 1,088 44,000 1,100 12 1,088 Series H 20,000 500 13 487 20,000 500 13 487 Series I 30,000 750 5 745 30,000 750 5 745 Series J 40,000 1,000 7 993 40,000 1,000 7 993 Series K 23,000 575 10 565 – – – – Total preferred stock (a) 209,510 $ 6,176 $ 192 $ 5,984 186,510 $ 5,601 $ 182 $ 5,419 (a) The par value of all shares issued and outstanding at December 31, 2018 and 2017, was $1.00 per share.
Common Stock Repurchased	The following table summarizes the Company’s common stock repurchased in each of the last three years: (Dollars and Shares in Millions) Shares Value 2018 54 $ 2,844 2017 49 2,622 2016 61 2,600
Reconciliation of Transactions Affecting Accumulated Other Comprehensive Income (Loss) Included in Shareholders' Equity	Shareholders’ equity is affected by transactions and valuations of asset and liability positions that require adjustments to accumulated other comprehensive income (loss). The reconciliation of the transactions affecting accumulated other comprehensive income (loss) included in shareholders’ equity for the years ended December 31, is as follows: (Dollars in Millions) Unrealized Gains Available-For-Sale Unrealized Gains From Available-For-Sale Held-To-Maturity Unrealized Gains Unrealized Gains Foreign Currency Total 2018 Balance at beginning of period $ (357 ) $ 17 $ 71 $ (1,066 ) $ (69 ) $ (1,404 ) Revaluation of tax related balances (a) (77 ) 4 15 (229 ) (13 ) (300 ) Changes in unrealized gains and losses (656 ) – 39 (302 ) – (919 ) Foreign currency translation adjustment (b) – – – – 3 3 Reclassification to earnings of realized gains and losses (30 ) (9 ) (5 ) 137 – 93 Applicable income taxes 174 2 (8 ) 42 (5 ) 205 Balance at end of period $ (946 ) $ 14 $ 112 $ (1,418 ) $ (84 ) $ (2,322 ) 2017 Balance at beginning of period $ (431 ) $ 25 $ 55 $ (1,113 ) $ (71 ) $ (1,535 ) Changes in unrealized gains and losses 178 – (5 ) (41 ) – 132 Foreign currency translation adjustment (b) – – – – (2 ) (2 ) Reclassification to earnings of realized gains and losses (57 ) (13 ) 30 117 – 77 Applicable income taxes (47 ) 5 (9 ) (29 ) 4 (76 ) Balance at end of period $ (357 ) $ 17 $ 71 $ (1,066 ) $ (69 ) $ (1,404 ) 2016 Balance at beginning of period $ 111 $ 36 $ (67 ) $ (1,056 ) $ (43 ) $ (1,019 ) Changes in unrealized gains and losses (858 ) – 74 (255 ) – (1,039 ) Other-than-temporary impairment not recognized in earnings on securities available-for-sale (1 ) – – – – (1 ) Foreign currency translation (b) – – – – (28 ) (28 ) Reclassification to earnings of realized gains and losses (22 ) (18 ) 124 163 – 247 Applicable income taxes 339 7 (76 ) 35 – 305 Balance at end of period $ (431 ) $ 25 $ 55 $ (1,113 ) $ (71 ) $ (1,535 ) (a) Reflects the adoption of new accounting guidance on January 1, 2018 to reclassify the impact of the reduced federal statutory rate for corporations included in 2017 tax reform legislation from accumulated other comprehensive income to retained earnings. (b) Represents the impact of changes in foreign currency exchange rates on the Company’s investment in foreign operations and related hedges.
Impact to Net Income for Items Reclassified out of Accumulated Other Comprehensive Income and into Earnings	Additional detail about the impact to net income for items reclassified out of accumulated other comprehensive income (loss) and into earnings for the years ended December 31, is as follows: Impact to Net Income Affected Line Item in the (Dollars in Millions) 2018 2017 2016 Unrealized gains (losses) on investment securities available-for-sale Realized gains (losses) on sale of investment securities $ 30 $ 57 $ 27 Total securities gains (losses), net Other-than-temporary impairment recognized in earnings – – (5 ) 30 57 22 Total before tax (7 ) (22 ) (9 ) Applicable income taxes 23 35 13 Net-of-tax Unrealized gains (losses) on investment securities transferred from available-for-sale to held-to-maturity Amortization of unrealized gains 9 13 18 Interest income (2 ) (5 ) (7 ) Applicable income taxes 7 8 11 Net-of-tax Unrealized gains (losses) on derivative hedges Realized gains (losses) on derivative hedges 5 (30 ) (124 ) Interest expense (2 ) 11 48 Applicable income taxes 3 (19 ) (76 ) Net-of-tax Unrealized gains (losses) on retirement plans Actuarial gains (losses) and prior service cost (credit) amortization (137 ) (117 ) (163 ) Other noninterest expense 35 45 63 Applicable income taxes (102 ) (72 ) (100 ) Net-of-tax Total impact to net income $ (69 ) $ (48 ) $ (152 )
Components of Company's Regulatory Capital	The following table provides the components of the Company’s regulatory capital at December 31: (Dollars in Millions) 2018 2017 Basel III standardized approach: Common shareholders’ equity $ 45,045 $ 43,621 Less intangible assets Goodwill (net of deferred tax liability) (8,549 ) (8,613 ) Other disallowed intangible assets (601 ) (466 ) Other (a) (1,171 ) (173 ) Total common equity tier 1 capital 34,724 34,369 Qualifying preferred stock 5,984 5,419 Noncontrolling interests eligible for tier 1 capital 36 117 Other (b) (3 ) (99 ) Total tier 1 capital 40,741 39,806 Eligible portion of allowance for credit losses 4,441 4,417 Subordinated debt and noncontrolling interests eligible for tier 2 capital 2,996 3,280 Total tier 2 capital 7,437 7,697 Total risk-based capital $ 48,178 $ 47,503 Risk-weighted assets $ 381,661 $ 367,771 Basel III advanced approaches: Common shareholders’ equity $ 45,045 $ 43,621 Less intangible assets Goodwill (net of deferred tax liability) (8,549 ) (8,613 ) Other disallowed intangible assets (601 ) (466 ) Other (a) (1,171 ) (173 ) Total common equity tier 1 capital 34,724 34,369 Qualifying preferred stock 5,984 5,419 Noncontrolling interests eligible for tier 1 capital 36 117 Other (b) (3 ) (99 ) Total tier 1 capital 40,741 39,806 Eligible portion of allowance for credit losses 1,399 1,391 Subordinated debt and noncontrolling interests eligible for tier 2 capital 2,996 3,280 Total tier 2 capital 4,395 4,671 Total risk-based capital $ 45,136 $ 44,477 Risk-weighted assets $ 295,002 $ 287,211 (a) Includes the impact of items included in other comprehensive income (loss), such as unrealized gains (losses) on available-for-sale (b) Includes the remaining portion of deferred tax assets not eligible for total tier 1 capital.
Regulatory Capital Ratios	TABLE 23 Regulatory Capital Ratios U.S. Bancorp U.S. Bank National At December 31 (Dollars in Millions) 2018 2017 2018 2017 Basel III standardized approach: Common equity tier 1 capital $ 34,724 $ 34,369 $ 38,318 $ 37,586 Tier 1 capital 40,741 39,806 38,351 37,701 Total risk-based capital 48,178 47,503 45,960 45,466 Risk-weighted assets 381,661 367,771 374,299 361,973 Common equity tier 1 capital as a percent of risk-weighted assets 9.1 % 9.3 % 10.2 % 10.4 % Tier 1 capital as a percent of risk-weighted assets 10.7 10.8 10.2 10.4 Total risk-based capital as a percent of risk-weighted assets 12.6 12.9 12.3 12.6 Tier 1 capital as a percent of adjusted quarterly average assets (leverage ratio) 9.0 8.9 8.6 8.6 Basel III advanced approaches: Common equity tier 1 capital $ 34,724 $ 34,369 $ 38,318 $ 37,586 Tier 1 capital 40,741 39,806 38,351 37,701 Total risk-based capital 45,136 44,477 42,883 42,414 Risk-weighted assets 295,002 287,211 287,897 281,659 Common equity tier 1 capital as a percent of risk-weighted assets 11.8 % 12.0 % 13.3 % 13.3 % Tier 1 capital as a percent of risk-weighted assets 13.8 13.9 13.3 13.4 Total risk-based capital as a percent of risk-weighted assets 15.3 15.5 14.9 15.1 Tier 1 capital as a percent of total on- off-balance 7.2 6.9 Bank Regulatory Capital Requirements Minimum Well- Capitalized 2018 Common equity tier 1 capital as a percent of risk-weighted assets 6.375 % 6.500 % Tier 1 capital as a percent of risk-weighted assets 7.875 8.000 Total risk-based capital as a percent of risk-weighted assets 9.875 10.000 Tier 1 capital as a percent of adjusted quarterly average assets (leverage ratio) 4.000 5.000 Tier 1 capital as a percent of total on- off-balance 3.000 3.000 2017 Common equity tier 1 capital as a percent of risk-weighted assets 5.750 % 6.500 % Tier 1 capital as a percent of risk-weighted assets 7.250 8.000 Total risk-based capital as a percent of risk-weighted assets 9.250 10.000 Tier 1 capital as a percent of adjusted quarterly average assets (leverage ratio) 4.000 5.000

Earnings Per Share (Tables)

Earnings Per Share (Tables)	12 Months Ended
	Dec. 31, 2018
Earnings Per Share [Abstract]
Components of Earnings Per Share	The components of earnings per share were: Year Ended December 31 (Dollars and Shares in Millions, Except Per Share Data) 2018 2017 2016 Net income attributable to U.S. Bancorp $ 7,096 $ 6,218 $ 5,888 Preferred dividends (282 ) (267 ) (281 ) Impact of preferred stock redemption (a) – (10 ) – Impact of the purchase of noncontrolling interests (b) – – 9 Earnings allocated to participating stock awards (30 ) (28 ) (27 ) Net income applicable to U.S. Bancorp common shareholders $ 6,784 $ 5,913 $ 5,589 Average common shares outstanding 1,634 1,677 1,718 Net effect of the exercise and assumed purchase of stock awards 4 6 6 Average diluted common shares outstanding 1,638 1,683 1,724 Earnings per common share $ 4.15 $ 3.53 $ 3.25 Diluted earnings per common share $ 4.14 $ 3.51 $ 3.24 (a) Represents stock issuance costs originally recorded in preferred stock upon the issuance of the Company’s Series G Preferred Stock that were reclassified to retained earnings on the date the Company announced its intent to redeem the outstanding shares. (b) Represents the difference between the carrying amount and amount paid by the Company to purchase third party investor holdings of the preferred stock of USB Realty Corp, a consolidated subsidiary of the Company.

Employee Benefits (Tables)

Employee Benefits (Tables)	12 Months Ended
	Dec. 31, 2018
Retirement Benefits [Abstract]
Summary of Changes in Projected Benefit Obligation, Plan Assets, Funded Status, Amounts Recognized in Consolidated Balance Sheet and Accumulated Other Comprehensive Income (Loss)	The following table summarizes the changes in benefit obligations and plan assets for the years ended December 31, and the funded status and amounts recognized in the Consolidated Balance Sheet at December 31 for the retirement plans: Pension Plans Postretirement (Dollars in Millions) 2018 2017 2018 2017 Change In Projected Benefit Obligation (a) Benefit obligation at beginning of measurement period $ 5,720 $ 5,073 $ 68 $ 75 Service cost 208 187 – – Interest cost 224 220 2 2 Participants’ contributions – – 8 8 Actuarial loss (gain) (440 ) 430 (7 ) (1 ) Lump sum settlements (50 ) (45 ) – – Benefit payments (155 ) (145 ) (18 ) (18 ) Federal subsidy on benefits paid – – 1 2 Benefit obligation at end of measurement period (b) $ 5,507 $ 5,720 $ 54 $ 68 Change In Fair Value Of Plan Assets (c) Fair value at beginning of measurement period $ 5,482 $ 3,769 $ 87 $ 82 Actual return on plan assets (365 ) 665 – 10 Employer contributions 24 1,238 5 5 Participants’ contributions – – 7 8 Lump sum settlements (50 ) (45 ) – – Benefit payments (155 ) (145 ) (18 ) (18 ) Fair value at end of measurement period $ 4,936 $ 5,482 $ 81 $ 87 Funded (Unfunded) Status $ (571 ) $ (238 ) $ 27 $ 19 Components Of The Consolidated Balance Sheet Noncurrent benefit asset $ – $ 270 $ 26 $ 19 Current benefit liability (23 ) (23 ) – – Noncurrent benefit liability (548 ) (485 ) – – Recognized amount $ (571 ) $ (238 ) $ 26 $ 19 Accumulated Other Comprehensive Income (Loss), Pretax Net actuarial gain (loss) $ (1,981 ) $ (1,822 ) $ 66 $ 68 Net prior service credit (cost) – – 18 22 Recognized amount $ (1,981 ) $ (1,822 ) $ 84 $ 90 (a) The decrease and the increase in the projected benefit obligation for 2018 and 2017, respectively, were primarily due to discount rate changes. (b) At December 31, 2018 and 2017, the accumulated benefit obligation for all pension plans was $5.0 billion and $5.2 billion, respectively. (c) The decrease and the increase in the fair value of plan assets for 2018 and 2017, respectively, were primarily due to market conditions, as well as higher employer contributions in 2017.
Pension Plans with Benefit Obligations in Excess of Plan Assets	The following table provides information for pension plans with benefit obligations in excess of plan assets at December 31: (Dollars in Millions) 2018 2017 Pension Plans with Projected Benefit Obligations in Excess of Plan Assets Projected benefit obligation $ 5,507 $ 508 Fair value of plan assets 4,936 – Pension Plans with Accumulated Benefit Obligations in Excess of Plan Assets Accumulated benefit obligation $ 467 $ 485 Fair value of plan assets – –
Components of Net Periodic Benefit Cost and Other Amounts Recognized in Accumulated Other Comprehensive Income (Loss)	The following table sets forth the components of net periodic benefit cost and other amounts recognized in accumulated other comprehensive income (loss) for the years ended December 31 for the retirement plans: Pension Plans Postretirement Welfare Plan (Dollars in Millions) 2018 2017 2016 2018 2017 2016 Components Of Net Periodic Benefit Cost Service cost $ 208 $ 187 $ 177 $ – $ – $ – Interest cost 224 220 211 2 2 3 Expected return on plan assets (379 ) (284 ) (266 ) (3 ) (3 ) (1 ) Prior service cost (credit) and transition obligation (asset) amortization – (2 ) (5 ) (3 ) (3 ) (3 ) Actuarial loss (gain) amortization 146 127 175 (6 ) (5 ) (4 ) Net periodic benefit cost $ 199 $ 248 $ 292 $ (10 ) $ (9 ) $ (5 ) Other Changes In Plan Assets And Benefit Obligations Recognized In Other Comprehensive Income (Loss) Net actuarial gain (loss) arising during the year $ (305 ) $ (48 ) $ (270 ) $ 3 $ 7 $ 15 Net actuarial loss (gain) amortized during the year 146 127 175 (6 ) (5 ) (4 ) Net prior service cost (credit) and transition obligation (asset) amortized during the year – (2 ) (5 ) (3 ) (3 ) (3 ) Total recognized in other comprehensive income (loss) $ (159 ) $ 77 $ (100 ) $ (6 ) $ (1 ) $ 8 Total recognized in net periodic benefit cost and other comprehensive income (loss) $ (358 ) $ (171 ) $ (392 ) $ 4 $ 8 $ 13
Weighted Average Assumptions to Determine Projected Benefit Obligations	The following table sets forth weighted average assumptions used to determine the projected benefit obligations at December 31: Pension Plans Postretirement (Dollars in Millions) 2018 2017 2018 2017 Discount rate (a) 4.45 % 3.84 % 4.05 % 3.34 % Cash balance interest crediting rate 3.00 3.00 * * Rate of compensation increase (b) 3.52 3.56 * * Health care cost trend rate (c) Prior to age 65 6.50 % 6.75 % After age 65 10.00 % 6.75 % (a) The discount rates were developed using a cash flow matching bond model with a modified duration for the qualified pension plan, non-qualified (b) Determined on an active liability-weighted basis. (c) The 2018 and 2017 pre-65 post-65 * Not applicable
Weighted Average Assumptions Used to Determine Net Periodic Benefit Cost	The following table sets forth weighted average assumptions used to determine net periodic benefit cost for the years ended December 31: Pension Plans Postretirement Welfare Plan (Dollars in Millions) 2018 2017 2016 2018 2017 2016 Discount rate (a) 3.84 % 4.27 % 4.45 % 3.34 % 3.57 % 3.59 % Cash balance interest crediting rate 3.00 3.00 3.00 * * * Expected return on plan assets (b) 7.25 7.25 7.50 3.50 3.50 1.50 Rate of compensation increase (c) 3.56 3.58 4.06 * * * Health care cost trend rate (d) Prior to age 65 6.75 % 7.00 % 6.50 % After age 65 6.75 7.00 6.50 (a) The discount rates were developed using a cash flow matching bond model with a modified duration for the qualified pension plan, non-qualified (b) With the help of an independent pension consultant, the Company considers several sources when developing its expected long-term rates of return on plan assets assumptions, including, but not limited to, past returns and estimates of future returns given the plans’ asset allocation, economic conditions, and peer group LTROR information. The Company determines its expected long-term rates of return reflecting current economic conditions and plan assets. (c) Determined on an active liability weighted basis. (d) The 2018 and 2017 pre-65 post-65 pre-65 post-65 * Not applicable
Summary of Plan Investment Assets Measured at Fair Value	The following table summarizes plan investment assets measured at fair value at December 31: Qualified Pension Plan Welfare Plan 2018 2017 2018 2017 (Dollars in Millions) Level 1 Level 2 Level 3 Total Level 1 Level 2 Level 3 Total Level 1 Level 1 Cash and cash equivalents $ 54 $ – $ – $ 54 $ 727 (a) $ – $ – $ 727 $ 40 $ 36 Debt securities 631 904 – 1,535 517 723 – 1,240 – – Corporate stock Real estate equity securities (b) 109 – – 109 216 – – 216 – – Mutual funds Debt securities – 295 – 295 – 205 – 205 – – Emerging markets equity securities – 113 – 113 – 120 – 120 – – Other – – 3 3 – – 2 2 – – $ 794 $ 1,312 $ 3 2,109 $ 1,460 $ 1,048 $ 2 2,510 40 36 Plan investment assets not classified in fair value hierarchy (c) Collective investment funds Domestic equity securities 1,183 1,327 23 29 Mid-small (d) 340 346 – – International equity securities 643 934 14 22 Real estate securities 146 – – – Hedge funds (e) 290 200 – – Private equity funds (f) 225 165 – – Total plan investment assets at fair value $ 4,936 $ 5,482 $ 77 $ 87 (a) Includes an employer contribution made in late 2017 which was invested in various asset classes subsequent to December 31, 2017. (b) At December 31, 2018 and 2017, securities included $56 million and $105 million in domestic equities, respectively, and $53 million and $111 million in international equities, respectively. (c) These investments are valued based on net asset value per share as a practical expedient; fair values are provided to reconcile to total investment assets of the plans at fair value. (d) At December 31, 2018 and 2017, securities included $340 million and $346 million in domestic equities, respectively. (e) This category consists of several investment strategies diversified across several hedge fund managers. (f) This category consists of several investment strategies diversified across several private equity fund managers.
Summarizes the Changes for Qualified Pension Plan Assets Measured at Fair Value Using Significant Unobservable Inputs (Level 3)	The following table summarizes the changes in fair value for qualified pension plan investment assets measured at fair value using significant unobservable inputs (Level 3) for the years ended December 31: 2018 2017 2016 (Dollars in Millions) Other Other Other Balance at beginning of period $ 2 $ 1 $ 1 Purchases, sales, and settlements, net 1 1 – Balance at end of period $ 3 $ 2 $ 1
Expected Future Benefit Payments	The following benefit payments are expected to be paid from the retirement plans for the years ended December 31: (Dollars in Millions) Pension Postretirement (a) Medicare 2019 $ 216 $ 8 $ 1 2020 233 8 1 2021 252 7 1 2022 268 7 1 2023 285 6 1 2024-2028 1,692 24 2 (a) Net of expected retiree contributions and before Medicare Part D subsidy.

Stock-Based Compensation (Table

Stock-Based Compensation (Tables)	12 Months Ended
	Dec. 31, 2018
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Summary of Stock Options Outstanding and Exercised Under Prior and Existing Stock Incentive Plans	The following is a summary of stock options outstanding and exercised under prior and existing stock incentive plans of the Company: Year Ended December 31 Stock Weighted- Weighted-Average Aggregate 2018 Number outstanding at beginning of period 12,668,467 $ 32.15 Granted (a) — — Exercised (3,443,494 ) 25.41 Cancelled (b) (109,963 ) 46.72 Number outstanding at end of period (c) 9,115,010 $ 34.52 4.3 $ 102 Exercisable at end of period 7,372,036 $ 31.61 3.5 $ 104 2017 Number outstanding at beginning of period 17,059,241 $ 29.95 Granted 1,066,188 54.97 Exercised (5,389,741 ) 29.58 Cancelled (b) (67,221 ) 43.31 Number outstanding at end of period (c) 12,668,467 $ 32.15 4.5 $ 272 Exercisable at end of period 9,647,937 $ 27.87 3.3 $ 248 2016 Number outstanding at beginning of period 25,725,708 $ 29.82 Granted 1,644,288 39.50 Exercised (10,163,668 ) 31.09 Cancelled (b) (147,087 ) 35.18 Number outstanding at end of period (c) 17,059,241 $ 29.95 4.1 $ 365 Exercisable at end of period 13,856,142 $ 27.53 3.1 $ 330 (a) The Company did not grant any stock option awards during 2018. (b) Options cancelled include both non-vested (c) Outstanding options include stock-based awards that may be forfeited in future periods. The impact of the estimated forfeitures is reflected in compensation expense.
Weighted-Average Estimated Fair Value of Stock Options Granted and Assumptions Utilized by Company for Newly Issued Grants	The following table includes the weighted-average estimated fair value of stock options granted and the assumptions utilized by the Company for newly issued grants for the years ended December 31, 2017 and 2016: Year Ended December 31 2017 2016 Estimated fair value $ 14.66 $ 10.28 Risk-free interest rates 2.0 % 1.3 % Dividend yield 2.6 % 2.6 % Stock volatility factor .35 .36 Expected life of options (in years) 5.5 5.5
Summary of Certain Stock Option Activity	The following summarizes certain stock option activity of the Company: Year Ended December 31 (Dollars in Millions) 2018 2017 2016 Fair value of options vested $ 14 $ 13 $ 18 Intrinsic value of options exercised 97 127 138 Cash received from options exercised 87 159 316 Tax benefit realized from options exercised — 49 53
Stock Options Outstanding Additional Information	Additional information regarding stock options outstanding as of December 31, 2018, is as follows: Outstanding Options Exercisable Options Range of Exercise Prices Shares Weighted- Weighted- Shares Weighted- $11.02—$20.00 684,748 0.1 $ 11.20 684,748 $ 11.20 $20.01—$25.00 856,259 1.2 23.84 856,259 23.84 $25.01—$30.00 2,711,719 2.6 28.65 2,711,719 28.65 $30.01—$35.00 700,487 4.0 33.98 700,487 33.98 $35.01—$40.00 1,415,509 7.1 39.49 669,718 39.49 $40.01—$45.00 1,737,831 5.6 42.41 1,490,255 42.10 $45.01—$50.00 — — — — — $50.01—$55.01 1,008,457 8.1 54.97 258,850 54.97 9,115,010 4.3 $ 34.52 7,372,036 $ 31.61
Summary of Company's Restricted Shares of Stock and Unit Awards	A summary of the status of the Company’s restricted shares of stock and unit awards is presented below: 2018 2017 2016 Year Ended December 31 Shares Weighted- Value Shares Weighted- Value Shares Weighted- Value Outstanding at beginning of period 7,446,955 $ 44.49 8,265,507 $ 39.50 6,894,831 $ 38.44 Granted 3,213,023 55.03 2,850,927 54.45 4,879,421 39.65 Vested (3,373,323 ) 46.42 (3,295,376 ) 40.66 (3,069,035 ) 37.25 Cancelled (567,357 ) 49.07 (374,103 ) 43.91 (439,710 ) 40.18 Outstanding at end of period 6,719,298 $ 48.17 7,446,955 $ 44.49 8,265,507 $ 39.50

Income Taxes (Tables)

Income Taxes (Tables)	12 Months Ended
	Dec. 31, 2018
Income Tax Disclosure [Abstract]
Components of Income Tax Expense	The components of income tax expense were: Year Ended December 31 (Dollars in Millions) 2018 2017 2016 Federal Current $ 1,287 $ 2,086 $ 2,585 Deferred (148 ) (1,180 ) (711 ) Federal income tax 1,139 906 1,874 State Current 395 201 337 Deferred 20 157 (50 ) State income tax 415 358 287 Total income tax provision $ 1,554 $ 1,264 $ 2,161
Reconciliation of Expected Income Tax Expense at Federal Statutory Rate of 21 Percent and 35 Percent to Company's Applicable Income Tax Expense	A reconciliation of expected income tax expense at the federal statutory rate of 21 percent for 2018 and 35 percent for 2017 and 2016 to the Company’s applicable income tax expense follows: Year Ended December 31 (Dollars in Millions) 2018 2017 2016 Tax at statutory rate $ 1,822 $ 2,631 $ 2,837 State income tax, at statutory rates, net of federal tax benefit 352 281 244 Tax effect of Revaluation of tax related assets and liabilities (a) — (910 ) — Tax credits and benefits, net of related expenses (513 ) (774 ) (710 ) Tax-exempt (130 ) (200 ) (196 ) Noncontrolling interests (6 ) (12 ) (20 ) Nondeductible legal and regulatory expenses 52 213 30 Other items (b) (23 ) 35 (24 ) Applicable income taxes $ 1,554 $ 1,264 $ 2,161 (a) In late 2017, tax legislation was enacted that, among other provisions, reduced the federal statutory rate for corporations from 35 percent to 21 percent effective in 2018. In accordance with generally accepted accounting principles, the Company revalued its deferred tax assets and liabilities at December 31, 2017, resulting in an estimated net tax benefit of $910 million, which the Company recorded in 2017. (b) Includes excess tax benefits associated with stock-based compensation and adjustments related to deferred tax assets and liabilities.
Reconciliation of Changes in Federal, State and Foreign Unrecognized Tax Position Balances	A reconciliation of the changes in the federal, state and foreign unrecognized tax position balances are summarized as follows: Year Ended December 31 (Dollars in Millions) 2018 2017 2016 Balance at beginning of period $ 287 $ 302 $ 243 Additions (reductions) for tax positions taken in prior years 93 3 57 Additions for tax positions taken in the current year 10 9 12 Exam resolutions (51 ) (23 ) (6 ) Statute expirations (4 ) (4 ) (4 ) Balance at end of period $ 335 $ 287 $ 302
Significant Components of the Company's Net Deferred Tax Asset (Liability)	The significant components of the Company’s net deferred tax asset (liability) follows: At December 31 (Dollars in Millions) 2018 2017 Deferred Tax Assets Federal, state and foreign net operating loss and credit carryforwards $ 2,699 $ 2,249 Allowance for credit losses 1,141 1,116 Accrued expenses 508 468 Securities available-for-sale 278 111 Pension and postretirement benefits 85 — Stock compensation 79 79 Partnerships and other investment assets 69 252 Fixed assets 58 — Other deferred tax assets, net 268 215 Gross deferred tax assets 5,185 4,490 Deferred Tax Liabilities Leasing activities (2,652 ) (2,277 ) Goodwill and other intangible assets (703 ) (693 ) Mortgage servicing rights (642 ) (604 ) Loans (168 ) (160 ) Pension and postretirement benefits — (20 ) Fixed assets — (4 ) Other deferred tax liabilities, net (102 ) (131 ) Gross deferred tax liabilities (4,267 ) (3,889 ) Valuation allowance (109 ) (128 ) Net Deferred Tax Asset (Liability) $ 809 $ 473

Derivative Instruments (Tables)

Derivative Instruments (Tables)	12 Months Ended
	Dec. 31, 2018
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Asset and Liability Management Derivative Positions of Company	The following table summarizes the asset and liability management derivative positions of the Company: Asset Derivatives Liability Derivatives (Dollars in Millions) Notional Fair Weighted-Average In Years Notional Fair Weighted-Average In Years December 31, 2018 Cash flow hedges Interest rate contracts Pay fixed/receive floating swaps $ 7,422 $ 8 3.11 $ 4,320 $ – 1.77 Net investment hedges Foreign exchange forward contracts 209 5 .05 223 1 .05 Other economic hedges Interest rate contracts Futures and forwards Buy 2,839 27 .07 1,140 5 .05 Sell 994 3 .06 13,968 30 .72 Options Purchased 5,080 88 10.77 – – – Written 584 16 .09 3 – .09 Receive fixed/pay floating swaps 3,605 – 14.80 4,333 – 6.97 Pay fixed/receive floating swaps 4,333 – 6.97 1,132 – 7.64 Foreign exchange forward contracts 549 7 .03 75 1 .05 Equity contracts 19 1 .82 104 2 .45 Credit contracts 2,318 – 3.50 4,923 2 4.04 Other (a) 1 – .01 1,458 84 1.50 Total $ 27,953 $ 155 $ 31,679 $ 125 December 31, 2017 Fair value hedges Interest rate contracts Receive fixed/pay floating swaps $ 1,000 $ 28 6.70 $ 3,600 $ 16 1.55 Cash flow hedges Interest rate contracts Pay fixed/receive floating swaps 3,772 5 6.73 – – – Net investment hedges Foreign exchange forward contracts – – – 373 8 .05 Other economic hedges Interest rate contracts Futures and forwards Buy 1,632 7 .10 1,326 2 .04 Sell 15,291 10 .89 4,511 10 .03 Options Purchased 4,985 65 7.57 – – – Written 1,285 21 .10 5 – .05 Receive fixed/pay floating swaps 2,019 5 16.49 5,469 – 8.43 Pay fixed/receive floating swaps 4,844 21 7.69 46 1 6.70 Foreign exchange forward contracts 147 1 .02 669 8 .04 Equity contracts 45 – 1.10 88 1 .58 Credit contracts 1,559 – 3.41 3,779 1 3.16 Other (a) – – – 1,164 125 2.50 Total $ 36,579 $ 163 $ 21,030 $ 172 (a) Includes derivative liability swap agreements related to the sale of a portion of the Company’s Class B common shares of Visa Inc. The Visa swap agreements had a total notional value, fair value and weighted average remaining maturity of $1.5 billion, $84 million and 1.50 years at December 31, 2018, respectively, compared to $1.2 billion, $125 million and 2.50 years at December 31, 2017, respectively. In addition, includes short-term underwriting purchase and sale commitments with total asset and liability notional values of $1 million at December 31, 2018.
Customer-Related Derivative Positions of Company	The following table summarizes the customer-related derivative positions of the Company: Asset Derivatives Liability Derivatives (Dollars in Millions) Notional Fair Weighted-Average Notional Fair Weighted-Average December 31, 2018 Interest rate contracts Receive fixed/pay floating swaps $ 44,976 $ 755 6.49 $ 62,597 $ 456 4.28 Pay fixed/receive floating swaps 63,825 289 4.07 45,129 422 6.16 Options Purchased 41,711 51 1.54 1,940 30 1.98 Written 2,060 32 2.07 39,538 51 1.44 Futures Buy 460 – 1.58 – – – Sell – – – 6,190 1 .59 Foreign exchange rate contracts Forwards, spots and swaps 26,210 681 .91 25,571 663 .88 Options Purchased 2,779 47 .75 – – – Written – – – 2,779 47 .75 Total $ 182,021 $ 1,855 $ 183,744 $ 1,670 December 31, 2017 Interest rate contracts Receive fixed/pay floating swaps $ 28,681 $ 679 5.71 $ 59,990 $ 840 4.27 Pay fixed/receive floating swaps 63,038 860 4.20 25,093 602 5.76 Options Purchased 29,091 22 1.61 880 14 4.24 Written 880 15 4.24 27,056 20 1.50 Futures Sell 7,007 4 1.21 – – – Foreign exchange rate contracts Forwards, spots and swaps 24,099 656 .81 23,440 636 .83 Options Purchased 4,026 83 1.20 – – – Written – – – 4,026 83 1.20 Total $ 156,822 $ 2,319 $ 140,485 $ 2,195
Summary of Effective Portion of Gains (Losses) Recognized in Other Comprehensive Income (Loss) and Gains (Losses) Reclassified from Other Comprehensive Income (Loss) into Earnings	The table below shows the effective portion of the gains (losses) recognized in other comprehensive income (loss) and the gains (losses) reclassified from other comprehensive income (loss) into earnings (net-of-tax) Gains (Losses) Recognized in Other Gains (Losses) Reclassified from (Dollars in Millions) 2018 2017 2016 2018 2017 2016 Asset and Liability Management Positions Cash flow hedges Interest rate contracts $ 29 $ (3 ) $ 46 $ 3 $ (19 ) $ (76 ) Net investment hedges Foreign exchange forward contracts 39 (56 ) 33 – – – Non-derivative 32 (46 ) – – – – Note: The Company does not exclude components from effectiveness testing for cash flow and net investment hedges.
Effect of Fair Value and Cash Flow Hedge Accounting on Consolidated Statement of Income	The table below shows the effect of fair value and cash flow hedge accounting on the Consolidated Statement of Income for the years ended December 31: Other Noninterest Income Interest Expense (Dollars in Millions) 2018 2017 2016 2018 2017 2016 Total amount of income and expense line items presented in the Consolidated Statement of Income in which the effects of fair value or cash flow hedges are recorded $ 910 $ 774 $ 911 $ 3,254 $ 1,966 $ 1,468 Asset and Liability Management Positions Fair value hedges Interest rate contract derivatives – (28 ) (31 ) 5 – – Hedged items – 28 31 (5 ) – – Cash Flow hedges Interest rate contract derivatives – – – (5 ) 30 124 Note: The Company does not exclude components from effectiveness testing for fair value and cash flow hedges. The Company did not reclassify gains or losses into earnings as a result of the discontinuance of cash flow hedges during the years ended December 31, 2018, 2017 and 2016.
Summary of Cumulative Hedging Adjustments and the Carrying Amount of Assets (Liabilities) Designated in Fair Value Hedges	The table below shows cumulative hedging adjustments and the carrying amount of assets (liabilities) designated in fair value hedges: Carrying Amount of the Cumulative Hedging At December 31 (Dollars in Millions) 2018 2017 2018 2017 Line Item in the Consolidated Balance Sheet Long-term Debt $ – $ 4,584 $ (27 ) $ (8 ) (a) The cumulative hedging adjustment at December 31, 2018 relates to discontinued hedging relationships. The Company did not have any hedging adjustments for discontinued fair value hedges at December 31, 2017.
Summary of Gains (Losses) Recognized in Earnings for Other Economic Hedges and Customer-Related Positions	The table below shows the gains (losses) recognized in earnings for other economic hedges and the customer-related positions for the years ended December 31: (Dollars in Millions) Location of Gains (Losses) 2018 2017 2016 Asset and Liability Management Positions Other economic hedges Interest rate contracts Futures and forwards Mortgage banking revenue $ 110 $ 24 $ 101 Purchased and written options Mortgage banking revenue 188 237 331 Receive fixed/pay floating swaps Mortgage banking revenue 61 255 226 Pay fixed/receive floating swaps Mortgage banking revenue (172 ) (220 ) (140 ) Foreign exchange forward contracts Other noninterest income 39 (69 ) (14 ) Equity contracts Compensation expense (4 ) 1 1 Credit contracts Other noninterest income 2 3 1 Other Other noninterest income 2 (1 ) (39 ) Customer-Related Positions Interest rate contracts Receive fixed/pay floating swaps Commercial products revenue (192 ) (876 ) (708 ) Pay fixed/receive floating swaps Commercial products revenue 239 943 769 Purchased and written options Commercial products revenue 2 (24 ) (5 ) Futures Commercial products revenue 9 (3 ) (6 ) Foreign exchange rate contracts Forwards, spots and swaps Commercial products revenue 84 92 88 Purchased and written options Commercial products revenue – 2 (1 )

Netting Arrangements for Cert_2

Netting Arrangements for Certain Financial Instruments and Securities Financing Activities (Tables)	12 Months Ended
	Dec. 31, 2018
Text Block [Abstract]
Summary of Maturities by Category of Collateral Pledged for Repurchase Agreements and Securities Loaned Transactions	The following table summarizes the maturities by category of collateral pledged for repurchase agreements and securities loaned transactions: (Dollars in Millions) Overnight and Less Than 30-89 Days Greater Than Total December 31, 2018 Repurchase agreements U.S. Treasury and agencies $ 134 $ — $ — $ — $ 134 Residential agency mortgage-backed securities 565 — 945 470 1,980 Corporate debt securities 480 — — — 480 Total repurchase agreements 1,179 — 945 470 2,594 Securities loaned Corporate debt securities 227 — — — 227 Total securities loaned 227 — — — 227 Gross amount of recognized liabilities $ 1,406 $ — $ 945 $ 470 $ 2,821 December 31, 2017 Repurchase agreements U.S. Treasury and agencies $ 25 $ — $ — $ — $ 25 Residential agency mortgage-backed securities 644 30 — — 674 Corporate debt securities 104 — — — 104 Total repurchase agreements 773 30 — — 803 Securities loaned Corporate debt securities 111 — — — 111 Total securities loaned 111 — — — 111 Gross amount of recognized liabilities $ 884 $ 30 $ — $ — $ 914
Information on Company's Accounting Netting Adjustments and Items Not Offset in Consolidated Balance Sheet Assets But Available for Offset in Event of Default	The following tables provide information on the Company’s netting adjustments, and items not offset on the Consolidated Balance Sheet but available for offset in the event of default: Gross Gross Amounts (a) Net Amounts Gross Amounts Not Offset on the (Dollars in Millions) Financial (b) Collateral Received (c) Net Amount December 31, 2018 Derivative assets (d) $ 1,987 $ (942 ) $ 1,045 $ (106 ) $ (16 ) $ 923 Reverse repurchase agreements 205 — 205 (114 ) (91 ) — Securities borrowed 1,069 — 1,069 — (1,039 ) 30 Total $ 3,261 $ (942 ) $ 2,319 $ (220 ) $ (1,146 ) $ 953 December 31, 2017 Derivative assets (d) $ 1,759 $ (652 ) $ 1,107 $ (110 ) $ (5 ) $ 992 Reverse repurchase agreements 24 — 24 (24 ) — — Securities borrowed 923 — 923 — (896 ) 27 Total $ 2,706 $ (652 ) $ 2,054 $ (134 ) $ (901 ) $ 1,019 (a) Includes $236 million and $50 million of cash collateral related payables that were netted against derivative assets at December 31, 2018 and 2017, respectively. (b) For derivative assets this includes any derivative liability fair values that could be offset in the event of counterparty default; for reverse repurchase agreements this includes any repurchase agreement payables that could be offset in the event of counterparty default; for securities borrowed this includes any securities loaned payables that could be offset in the event of counterparty default. (c) Includes the fair value of securities received by the Company from the counterparty. These securities are not included on the Consolidated Balance Sheet unless the counterparty defaults. (d) Excludes $23 million and $723 million at December 31, 2018 and 2017, respectively, of derivative assets not subject to netting arrangements.
Information on Company's Accounting Netting Adjustments and Items Not Offset in Consolidated Balance Sheet Liabilities But Available for Offset in Event of Default	Gross Gross Amounts (a) Net Amounts Gross Amounts Not Offset on (Dollars in Millions) Financial (b) Collateral Pledged (c) Net December 31, 2018 Derivative liabilities (d) $ 1,710 $ (946 ) $ 764 $ (106 ) $ — $ 658 Repurchase agreements 2,594 — 2,594 (114 ) (2,480 ) — Securities loaned 227 — 227 — (224 ) 3 Total $ 4,531 $ (946 ) $ 3,585 $ (220 ) $ (2,704 ) $ 661 December 31, 2017 Derivative liabilities (d) $ 1,629 $ (1,130 ) $ 499 $ (110 ) $ — $ 389 Repurchase agreements 803 — 803 (24 ) (779 ) — Securities loaned 111 — 111 — (110 ) 1 Total $ 2,543 $ (1,130 ) $ 1,413 $ (134 ) $ (889 ) $ 390 (a) Includes $240 million and $528 million of cash collateral related receivables that were netted against derivative liabilities at December 31, 2018 and 2017, respectively. (b) For derivative liabilities this includes any derivative asset fair values that could be offset in the event of counterparty default; for repurchase agreements this includes any reverse repurchase agreement receivables that could be offset in the event of counterparty default; for securities loaned this includes any securities borrowed receivables that could be offset in the event of counterparty default. (c) Includes the fair value of securities pledged by the Company to the counterparty. These securities are included on the Consolidated Balance Sheet unless the Company defaults. (d) Excludes $85 million and $738 million at December 31, 2018 and 2017, respectively, of derivative liabilities not subject to netting arrangements.

Fair Values of Assets and Lia_2

Fair Values of Assets and Liabilities (Tables)	12 Months Ended
	Dec. 31, 2018
Fair Value Disclosures [Abstract]
Valuation Assumption Ranges for MSRs	The following table shows the significant valuation assumption ranges for MSRs at December 31, 2018: Minimum Maximum Weighted (a) Expected prepayment 7 % 17 % 10 % Option adjusted spread 7 10 8 (a) Determined based on the relative fair value of the related mortgage loans serviced.
Valuation Assumption Ranges for Derivative Commitments	The following table shows the significant valuation assumption ranges for the Company’s derivative commitments to purchase and originate mortgage loans at December 31, 2018: Minimum Maximum Weighted (a) Expected loan close rate 4 % 100 % 78 % Inherent MSR value (basis points per loan) 39 206 115 (a) Determined based on the relative fair value of the related mortgage loans.
Balances of Assets and Liabilities Measured at Fair Value on Recurring Basis	The following table summarizes the balances of assets and liabilities measured at fair value on a recurring basis: (Dollars in Millions) Level 1 Level 2 Level 3 Netting Total December 31, 2018 Available-for-sale U.S. Treasury and agencies $ 18,585 $ 672 $ – $ – $ 19,257 Mortgage-backed securities Residential agency – 39,752 – – 39,752 Commercial agency – 2 – – 2 Other asset-backed securities – 403 – – 403 Obligations of state and political subdivisions – 6,701 – – 6,701 Total available-for-sale 18,585 47,530 – – 66,115 Mortgage loans held for sale – 2,035 – – 2,035 Mortgage servicing rights – – 2,791 – 2,791 Derivative assets – 1,427 583 (942 ) 1,068 Other assets 392 1,273 – – 1,665 Total $ 18,977 $ 52,265 $ 3,374 $ (942 ) $ 73,674 Derivative liabilities $ 1 $ 1,291 $ 503 $ (946 ) $ 849 Short-term borrowings and other liabilities (a) 199 1,019 – – 1,218 Total $ 200 $ 2,310 $ 503 $ (946 ) $ 2,067 December 31, 2017 Available-for-sale U.S. Treasury and agencies $ 22,572 $ 729 $ – $ – $ 23,301 Mortgage-backed securities Residential agency – 38,031 – – 38,031 Commercial agency – 6 – – 6 Other asset-backed securities – 419 – – 419 Obligations of state and political subdivisions – 6,358 – – 6,358 Other 22 – – – 22 Total available-for-sale 22,594 45,543 – – 68,137 Mortgage loans held for sale – 3,534 – – 3,534 Mortgage servicing rights – – 2,645 – 2,645 Derivative assets 6 1,960 516 (652 ) 1,830 Other assets 154 1,163 – – 1,317 Total $ 22,754 $ 52,200 $ 3,161 $ (652 ) $ 77,463 Derivative liabilities $ – $ 1,958 $ 409 $ (1,130 ) $ 1,237 Short-term borrowings and other liabilities (a) 101 894 – – 995 Total $ 101 $ 2,852 $ 409 $ (1,130 ) $ 2,232 Note: Excluded from the table above are equity investments without readily determinable fair values. The Company has elected to carry these investments at historical cost, adjusted for impairment and any changes resulting from observable price changes for identical or similar investments of the issuer. The aggregate carrying amount of these equity investments was $86 million at December 31, 2018. The Company has not recorded impairments or adjustments for observable price changes on these equity investments during 2018 or on a cumulative basis. (a) Primarily represents the Company’s obligation on securities sold short required to be accounted for at fair value per applicable accounting guidance.
Changes in Fair Value for All Assets and Liabilities Measured at Fair Value on Recurring Basis Using Significant Unobservable Inputs (Level 3)	The following table presents the changes in fair value for all assets and liabilities measured at fair value on a recurring basis using significant unobservable inputs (Level 3) for the years ended December 31: (Dollars in Millions) Beginning Net Gains Net Gains Purchases Sales Principal Issuances Settlements End of Net Change Held at End of Period 2018 Mortgage servicing rights $ 2,645 $ (232 ) (c) $ – $ 8 $ (27 ) $ – $ 397 (e) $ – $ 2,791 $ (232 ) (c) Net derivative assets and liabilities 107 21 (d) – 13 (41 ) – – (20 ) 80 34 (f) 2017 Available-for-sale Residential non-agency Prime (a) $ 242 $ – $ (2 ) $ – $ (234 ) $ (6 ) $ – $ – $ – $ – Non-prime (b) 195 – (17 ) – (175 ) (3 ) – – – – Other asset-backed securities 2 – – – (2 ) – – – – – Corporate debt securities 9 – 2 – (11 ) – – – – – Total available-for-sale 448 – (17 ) (g) – (422 ) (9 ) – – – – Mortgage servicing rights 2,591 (404 ) (c) – 13 – – 445 (e) – 2,645 (404 ) (c) Net derivative assets and liabilities 171 317 (h) – 1 (10 ) – – (372 ) 107 (52 ) (i) 2016 Available-for-sale Residential non-agency Prime (a) $ 318 $ (1 ) $ – $ – $ – $ (75 ) $ – $ – $ 242 $ – Non-prime (b) 240 (1 ) (2 ) – – (42 ) – – 195 (2 ) Other asset-backed securities 2 – – – – – – – 2 – Corporate debt securities 9 – – – – – – – 9 – Total available-for-sale 569 (2 ) (j) (2 ) (g) – – (117 ) – – 448 (2 ) Mortgage servicing rights 2,512 (488 ) (c) – 43 – – 524 (e) – 2,591 (488 ) (c) Net derivative assets and liabilities 498 332 (k) – 2 (14 ) – – (647 ) 171 (257 ) (l) (a) Prime securities are those designated as such by the issuer at origination. When an issuer designation is unavailable, the Company determines at acquisition date the categorization based on asset pool characteristics (such as weighted-average credit score, loan-to-value, (b) Includes all securities not meeting the conditions to be designated as prime. (c) Included in mortgage banking revenue. (d) Approximately $(139) million included in other noninterest income and $160 million included in mortgage banking revenue. (e) Represents MSRs capitalized during the period. (f) Approximately $14 million included in other noninterest income and $20 million included in mortgage banking revenue. (g) Included in changes in unrealized gains and losses on investment securities available-for-sale. (h) Approximately $21 million included in other noninterest income and $296 million included in mortgage banking revenue. (i) Approximately $(77) million included in other noninterest income and $25 million included in mortgage banking revenue. (j) Approximately $(3) million included in securities gains (losses) and $1 million included in interest income. (k) Approximately $(77) million included in other noninterest income and $409 million included in mortgage banking revenue. (l) Approximately $(276) million included in other noninterest income and $19 million included in mortgage banking revenue.
Adjusted Carrying Values for Assets Measured at Fair Value on Nonrecurring Basis	The following table summarizes the balances as of the measurement date of assets measured at fair value on a nonrecurring basis, and still held as of December 31: 2018 2017 (Dollars in Millions) Level 1 Level 2 Level 3 Total Level 1 Level 2 Level 3 Total Loans (a) $ – $ – $ 40 $ 40 $ – $ – $ 150 $ 150 Other assets (b) – – 57 57 – – 31 31 (a) Represents the carrying value of loans for which adjustments were based on the fair value of the collateral, excluding loans fully charged-off. (b) Primarily represents the fair value of foreclosed properties that were measured at fair value based on an appraisal or broker price opinion of the collateral subsequent to their initial acquisition.
Losses Recognized Related to Nonrecurring Fair Value Measurements of Individual Assets or Portfolios	The following table summarizes losses recognized related to nonrecurring fair value measurements of individual assets or portfolios for the years ended December 31: (Dollars in Millions) 2018 2017 2016 Loans (a) $ 83 $ 171 $ 192 Other assets (b) 26 20 32 (a) Represents write-downs of loans which were based on the fair value of the collateral, excluding loans fully charged-off. (b) Primarily represents related losses of foreclosed properties that were measured at fair value subsequent to their initial acquisition.
Differences Between Aggregate Fair Value Carrying Amount of MLHFS for which Fair Value Option has been Elected and Aggregate Unpaid Principal Amount Contractually Obligated to Receive at Maturity	The following table summarizes the differences between the aggregate fair value carrying amount of MLHFS for which the fair value option has been elected and the aggregate unpaid principal amount that the Company is contractually obligated to receive at maturity as of December 31: 2018 2017 (Dollars in Millions) Fair Value Aggregate Carrying Fair Value Aggregate Carrying Total loans $ 2,035 $ 1,972 $ 63 $ 3,534 $ 3,434 $ 100 Nonaccrual loans 2 2 – 1 2 (1 ) Loans 90 days or more past due – – – 1 1 –
Estimated Fair Values of Financial Instruments	The estimated fair values of the Company’s financial instruments as of December 31, are shown in the table below: 2018 2017 Carrying Amount Fair Value Carrying Amount Fair Value (Dollars in Millions) Level 1 Level 2 Level 3 Total Level 1 Level 2 Level 3 Total Financial Assets Cash and due from banks $ 21,453 $ 21,453 $ – $ – $ 21,453 $ 19,505 $ 19,505 $ – $ – $ 19,505 Federal funds sold and securities purchased under resale agreements 306 – 306 – 306 93 – 93 – 93 Investment securities held-to-maturity 46,050 4,594 40,359 11 44,964 44,362 4,613 39,095 15 43,723 Loans held for sale (a) 21 – – 21 21 20 – – 20 20 Loans 282,837 – – 284,790 284,790 276,507 – – 279,391 279,391 Other 2,412 – 1,241 1,171 2,412 2,393 – 1,037 1,364 2,401 Financial Liabilities Time deposits 44,554 – 44,140 – 44,140 33,356 – 33,120 – 33,120 Short-term borrowings (b) 12,921 – 12,678 – 12,678 15,656 – 15,447 – 15,447 Long-term debt 41,340 – 41,003 – 41,003 32,259 – 32,377 – 32,377 Other 1,726 – – 1,726 1,726 1,556 – – 1,556 1,556 (a) Excludes mortgages held for sale for which the fair value option under applicable accounting guidance was elected. (b) Excludes the Company’s obligation on securities sold short required to be accounted for at fair value per applicable accounting guidance.

Guarantees and Contingent Lia_2

Guarantees and Contingent Liabilities (Tables)	12 Months Ended
	Dec. 31, 2018
Commitments and Contingencies Disclosure [Abstract]
Contract or Notional Amounts of Unfunded Commitments to Extend Credit	The contract or notional amounts of unfunded commitments to extend credit at December 31, 2018, excluding those commitments considered derivatives, were as follows: Term (Dollars in Millions) Less Than Greater One Year Total Commercial and commercial real estate loans $ 30,516 $ 101,975 $ 132,491 Corporate and purchasing card loans (a) 26,391 — 26,931 Residential mortgages 211 3 214 Retail credit card loans (a) 110,707 — 110,707 Other retail loans 13,634 24,123 37,757 Other 6,229 — 6,229 (a) Primarily cancelable at the Company’s discretion.
Future Minimum Payments Under Capital Leases and Noncancelable Operating Leases	Future minimum payments, net of sublease rentals, under capitalized leases and noncancelable operating leases with initial or remaining terms of one year or more, consisted of the following at December 31, 2018: (Dollars in Millions) Capitalized Operating 2019 $ 17 $ 291 2020 15 259 2021 13 232 2022 10 195 2023 9 153 Thereafter 37 482 Total minimum lease payments 101 $ 1,612 Less amount representing interest 35 Present value of net minimum lease payments $ 66
Summary of Other Guarantees and Contingent Liabilities	The following table is a summary of other guarantees and contingent liabilities of the Company at December 31, 2018: (Dollars in Millions) Collateral Carrying Amount Maximum Standby letters of credit $ — $ 54 $ 11,305 Third party borrowing arrangements — — 7 Securities lending indemnifications 3,666 — 3,600 Asset sales — 117 7,508 Merchant processing 647 47 103,273 Tender option bond program guarantee 2,399 — 2,332 Minimum revenue guarantees — — 4 Other — 99 1,368
Contract or Notional Amount of Letters of Credit	The contract or notional amount of letters of credit at December 31, 2018, were as follows: Term (Dollars in Millions) Less Than Greater Total Standby $ 5,501 $ 5,805 $ 11,306 Commercial 412 28 440

U.S. Bancorp (Parent Company) (

U.S. Bancorp (Parent Company) (Tables)	12 Months Ended
	Dec. 31, 2018
Condensed Financial Information Disclosure [Abstract]
Condensed Statement of Financial Position of Parent Company Only	Condensed Balance Sheet At December 31 (Dollars in Millions) 2018 2017 Assets Due from banks, principally interest-bearing $ 9,969 $ 9,157 Available-for-sale 921 963 Investments in bank subsidiaries 47,549 46,435 Investments in nonbank subsidiaries 2,568 2,540 Advances to bank subsidiaries 3,800 3,300 Advances to nonbank subsidiaries 2,543 2,055 Other assets 813 1,079 Total assets $ 68,163 $ 65,529 Liabilities and Shareholders’ Equity Short-term funds borrowed $ — $ 1 Long-term debt 16,291 15,769 Other liabilities 843 719 Shareholders’ equity 51,029 49,040 Total liabilities and shareholders’ equity $ 68,163 $ 65,529
Condensed Income Statement of Parent Company Only	Condensed Income Statement Year Ended December 31 (Dollars in Millions) 2018 2017 2016 Income Dividends from bank subsidiaries $ 5,300 $ 4,800 $ 2,100 Dividends from nonbank subsidiaries 6 5 4 Interest from subsidiaries 220 159 140 Other income 33 41 57 Total income 5,559 5,005 2,301 Expense Interest expense 471 402 327 Other expense 133 124 123 Total expense 604 526 450 Income before income taxes and equity in undistributed income of subsidiaries 4,955 4,479 1,851 Applicable income taxes (91 ) (176 ) (97 ) Income of parent company 5,046 4,655 1,948 Equity in undistributed income of subsidiaries 2,050 1,563 3,940 Net income attributable to U.S. Bancorp $ 7,096 $ 6,218 $ 5,888
Condensed Statement of Cash Flows of Parent Company Only	Condensed Statement of Cash Flows Year Ended December 31 (Dollars in Millions) 2018 2017 2016 Operating Activities Net income attributable to U.S. Bancorp $ 7,096 $ 6,218 $ 5,888 Adjustments to reconcile net income to net cash provided by operating activities Equity in undistributed income of subsidiaries (2,050 ) (1,563 ) (3,940 ) Other, net 359 (125 ) 75 Net cash provided by operating activities 5,405 4,530 2,023 Investing Activities Proceeds from sales and maturities of investment securities 39 100 232 Purchases of investment securities (10 ) (844 ) (120 ) Net increase in short-term advances to subsidiaries (488 ) (790 ) (442 ) Long-term advances to subsidiaries (500 ) — (750 ) Principal collected on long-term advances to subsidiaries — 500 100 Other, net 304 (12 ) (12 ) Net cash used in investing activities (655 ) (1,046 ) (992 ) Financing Activities Net decrease in short-term borrowings (1 ) (21 ) (3 ) Proceeds from issuance of long-term debt 2,100 3,920 3,550 Principal payments or redemption of long-term debt (1,500 ) (1,250 ) (1,926 ) Proceeds from issuance of preferred stock 565 993 — Proceeds from issuance of common stock 86 159 355 Repurchase of preferred stock — (1,085 ) — Repurchase of common stock (2,822 ) (2,631 ) (2,556 ) Cash dividends paid on preferred stock (274 ) (284 ) (267 ) Cash dividends paid on common stock (2,092 ) (1,928 ) (1,810 ) Net cash used in financing activities (3,938 ) (2,127 ) (2,657 ) Change in cash and due from banks 812 1,357 (1,626 ) Cash and due from banks at beginning of year 9,157 7,800 9,426 Cash and due from banks at end of year $ 9,969 $ 9,157 $ 7,800

Loans and Allowance for Credi_3

Loans and Allowance for Credit Losses - Commercial Loans by Industry Group and Geography Excluding Covered Loans (Detail) - USD ($) $ in Millions	Dec. 31, 2018	Dec. 31, 2017
Loans by Industry Group and Geography [Line Items]
Commercial	$ 102,444	$ 97,561
Commercial, percentage	100.00%	100.00%
California [Member]
Loans by Industry Group and Geography [Line Items]
Commercial	$ 13,507	$ 14,086
Commercial, percentage	13.20%	14.40%
Colorado [Member]
Loans by Industry Group and Geography [Line Items]
Commercial	$ 4,071	$ 3,979
Commercial, percentage	4.00%	4.10%
Illinois [Member]
Loans by Industry Group and Geography [Line Items]
Commercial	$ 5,356	$ 5,245
Commercial, percentage	5.20%	5.40%
Minnesota [Member]
Loans by Industry Group and Geography [Line Items]
Commercial	$ 7,832	$ 7,406
Commercial, percentage	7.60%	7.60%
Missouri [Member]
Loans by Industry Group and Geography [Line Items]
Commercial	$ 3,274	$ 3,525
Commercial, percentage	3.20%	3.60%
Ohio [Member]
Loans by Industry Group and Geography [Line Items]
Commercial	$ 4,913	$ 4,330
Commercial, percentage	4.80%	4.50%
Oregon [Member]
Loans by Industry Group and Geography [Line Items]
Commercial	$ 2,135	$ 2,044
Commercial, percentage	2.10%	2.10%
Washington [Member]
Loans by Industry Group and Geography [Line Items]
Commercial	$ 3,672	$ 3,699
Commercial, percentage	3.60%	3.80%
Wisconsin [Member]
Loans by Industry Group and Geography [Line Items]
Commercial	$ 3,630	$ 3,539
Commercial, percentage	3.50%	3.60%
Iowa, Kansas, Nebraska, North Dakota, South Dakota [Member]
Loans by Industry Group and Geography [Line Items]
Commercial	$ 5,094	$ 4,806
Commercial, percentage	5.00%	4.90%
Arkansas, Indiana, Kentucky, Tennessee [Member]
Loans by Industry Group and Geography [Line Items]
Commercial	$ 5,488	$ 5,206
Commercial, percentage	5.30%	5.30%
Idaho, Montana, Wyoming [Member]
Loans by Industry Group and Geography [Line Items]
Commercial	$ 1,114	$ 1,225
Commercial, percentage	1.10%	1.30%
Arizona, Nevada, New Mexico, Utah [Member]
Loans by Industry Group and Geography [Line Items]
Commercial	$ 4,183	$ 3,836
Commercial, percentage	4.10%	3.90%
Total Banking Region [Member]
Loans by Industry Group and Geography [Line Items]
Commercial	$ 64,269	$ 62,926
Commercial, percentage	62.70%	64.50%
Florida, Michigan, New York, Pennsylvania, Texas [Member]
Loans by Industry Group and Geography [Line Items]
Commercial	$ 18,031	$ 16,408
Commercial, percentage	17.60%	16.80%
All Other States [Member]
Loans by Industry Group and Geography [Line Items]
Commercial	$ 20,144	$ 18,227
Commercial, percentage	19.70%	18.70%
Total Outside Company's Banking Region [Member]
Loans by Industry Group and Geography [Line Items]
Commercial	$ 38,175	$ 34,635
Commercial, percentage	37.30%	35.50%
Manufacturing [Member]
Loans by Industry Group and Geography [Line Items]
Commercial	$ 15,064	$ 14,710
Commercial, percentage	14.70%	15.10%
Real Estate, Rental and Leasing [Member]
Loans by Industry Group and Geography [Line Items]
Commercial	$ 12,270	$ 12,461
Commercial, percentage	12.00%	12.80%
Retail Trade [Member]
Loans by Industry Group and Geography [Line Items]
Commercial	$ 8,211	$ 8,952
Commercial, percentage	8.00%	9.20%
Finance and Insurance [Member]
Loans by Industry Group and Geography [Line Items]
Commercial	$ 10,301	$ 8,639
Commercial, percentage	10.00%	8.80%
Wholesale Trade [Member]
Loans by Industry Group and Geography [Line Items]
Commercial	$ 8,310	$ 7,383
Commercial, percentage	8.10%	7.60%
Healthcare and Social Assistance [Member]
Loans by Industry Group and Geography [Line Items]
Commercial	$ 5,769	$ 6,517
Commercial, percentage	5.60%	6.70%
Public Administration [Member]
Loans by Industry Group and Geography [Line Items]
Commercial	$ 4,773	$ 5,116
Commercial, percentage	4.70%	5.20%
Arts, Entertainment and Recreation [Member]
Loans by Industry Group and Geography [Line Items]
Commercial	$ 4,089	$ 3,853
Commercial, percentage	4.00%	3.90%
Professional, Scientific and Technical Services [Member]
Loans by Industry Group and Geography [Line Items]
Commercial	$ 3,358	$ 3,499
Commercial, percentage	3.30%	3.60%
Educational Services [Member]
Loans by Industry Group and Geography [Line Items]
Commercial	$ 3,139	$ 3,414
Commercial, percentage	3.10%	3.50%
Information [Member]
Loans by Industry Group and Geography [Line Items]
Commercial	$ 3,576	$ 3,403
Commercial, percentage	3.50%	3.50%
Transport and Storage [Member]
Loans by Industry Group and Geography [Line Items]
Commercial	$ 3,559	$ 3,198
Commercial, percentage	3.50%	3.30%
Utilities [Member]
Loans by Industry Group and Geography [Line Items]
Commercial	$ 2,760	$ 1,933
Commercial, percentage	2.70%	2.00%
Other Services [Member]
Loans by Industry Group and Geography [Line Items]
Commercial	$ 1,691	$ 1,698
Commercial, percentage	1.60%	1.70%
Mining [Member]
Loans by Industry Group and Geography [Line Items]
Commercial	$ 1,636	$ 1,590
Commercial, percentage	1.60%	1.60%
Agriculture, Forestry, Fishing and Hunting [Member]
Loans by Industry Group and Geography [Line Items]
Commercial	$ 1,235	$ 1,429
Commercial, percentage	1.20%	1.50%
Other [Member]
Loans by Industry Group and Geography [Line Items]
Commercial	$ 12,703	$ 9,766
Commercial, percentage	12.40%	10.00%

Loans and Allowance for Credi_4

Loans and Allowance for Credit Losses - Commercial Real Estate Loans by Property Type and Geography Excluding Covered Loans (Detail) - USD ($) $ in Millions	Dec. 31, 2018	Dec. 31, 2017
Loans by Property Type and Geography [Line Items]
Commercial real estate	$ 39,539	$ 40,463
Commercial real estate, percentage	100.00%	100.00%
California [Member]
Loans by Property Type and Geography [Line Items]
Commercial real estate	$ 9,784	$ 9,558
Commercial real estate, percentage	24.70%	23.60%
Colorado [Member]
Loans by Property Type and Geography [Line Items]
Commercial real estate	$ 1,883	$ 1,764
Commercial real estate, percentage	4.80%	4.40%
Illinois [Member]
Loans by Property Type and Geography [Line Items]
Commercial real estate	$ 1,484	$ 1,605
Commercial real estate, percentage	3.80%	4.00%
Minnesota [Member]
Loans by Property Type and Geography [Line Items]
Commercial real estate	$ 1,896	$ 2,031
Commercial real estate, percentage	4.80%	5.00%
Missouri [Member]
Loans by Property Type and Geography [Line Items]
Commercial real estate	$ 1,157	$ 1,359
Commercial real estate, percentage	2.90%	3.30%
Ohio [Member]
Loans by Property Type and Geography [Line Items]
Commercial real estate	$ 1,278	$ 1,445
Commercial real estate, percentage	3.20%	3.60%
Oregon [Member]
Loans by Property Type and Geography [Line Items]
Commercial real estate	$ 1,718	$ 1,847
Commercial real estate, percentage	4.30%	4.60%
Washington [Member]
Loans by Property Type and Geography [Line Items]
Commercial real estate	$ 3,383	$ 3,499
Commercial real estate, percentage	8.60%	8.60%
Wisconsin [Member]
Loans by Property Type and Geography [Line Items]
Commercial real estate	$ 1,892	$ 2,036
Commercial real estate, percentage	4.80%	5.00%
Iowa, Kansas, Nebraska, North Dakota, South Dakota [Member]
Loans by Property Type and Geography [Line Items]
Commercial real estate	$ 2,085	$ 2,210
Commercial real estate, percentage	5.30%	5.50%
Arkansas, Indiana, Kentucky, Tennessee [Member]
Loans by Property Type and Geography [Line Items]
Commercial real estate	$ 2,045	$ 1,889
Commercial real estate, percentage	5.20%	4.70%
Idaho, Montana, Wyoming [Member]
Loans by Property Type and Geography [Line Items]
Commercial real estate	$ 962	$ 1,163
Commercial real estate, percentage	2.40%	2.90%
Arizona, Nevada, New Mexico, Utah [Member]
Loans by Property Type and Geography [Line Items]
Commercial real estate	$ 3,130	$ 3,134
Commercial real estate, percentage	7.90%	7.70%
Total Banking Region [Member]
Loans by Property Type and Geography [Line Items]
Commercial real estate	$ 32,697	$ 33,540
Commercial real estate, percentage	82.70%	82.90%
Florida, Michigan, New York, Pennsylvania, Texas [Member]
Loans by Property Type and Geography [Line Items]
Commercial real estate	$ 3,613	$ 3,688
Commercial real estate, percentage	9.10%	9.10%
All Other States [Member]
Loans by Property Type and Geography [Line Items]
Commercial real estate	$ 3,229	$ 3,235
Commercial real estate, percentage	8.20%	8.00%
Total Outside Company's Banking Region [Member]
Loans by Property Type and Geography [Line Items]
Commercial real estate	$ 6,842	$ 6,923
Commercial real estate, percentage	17.30%	17.10%
Business Owner Occupied [Member]
Loans by Property Type and Geography [Line Items]
Commercial real estate	$ 9,769	$ 10,205
Commercial real estate, percentage	24.70%	25.20%
Industrial Commercial Property [Member]
Loans by Property Type and Geography [Line Items]
Commercial real estate	$ 1,695	$ 1,580
Commercial real estate, percentage	4.30%	3.90%
Office Commercial Property [Member]
Loans by Property Type and Geography [Line Items]
Commercial real estate	$ 5,351	$ 5,023
Commercial real estate, percentage	13.50%	12.40%
Retail Commercial Property [Member]
Loans by Property Type and Geography [Line Items]
Commercial real estate	$ 4,150	$ 4,502
Commercial real estate, percentage	10.50%	11.10%
Other Commercial Property [Member]
Loans by Property Type and Geography [Line Items]
Commercial real estate	$ 3,399	$ 3,757
Commercial real estate, percentage	8.60%	9.30%
Multi-Family [Member]
Loans by Property Type and Geography [Line Items]
Commercial real estate	$ 8,592	$ 8,922
Commercial real estate, percentage	21.70%	22.00%
Hotel/Motel [Member]
Loans by Property Type and Geography [Line Items]
Commercial real estate	$ 3,520	$ 3,719
Commercial real estate, percentage	8.90%	9.20%
Residential Homebuilders [Member]
Loans by Property Type and Geography [Line Items]
Commercial real estate	$ 2,764	$ 2,489
Commercial real estate, percentage	7.00%	6.20%
Healthcare Facilities [Member]
Loans by Property Type and Geography [Line Items]
Commercial real estate	$ 299	$ 266
Commercial real estate, percentage	0.80%	0.70%

Investment Securities - Investm

Investment Securities - Investment Securities (Detail) - USD ($) $ in Millions		12 Months Ended
		Dec. 31, 2018	Dec. 31, 2017
Contractual Maturities of Investment Securities [Line Items]
Available-for-sale securities, Amortized Cost		$ 67,381	$ 68,717
Amortized Cost of Investment Securities		$ 113,431	$ 113,079
Amortized Cost of Investment Securities, Percentage		100.00%	100.00%
Available-for-sale securities, total, fair value	[1]	$ 66,115	$ 68,137
Available-for-sale securities, total, weighted-average maturity in years		5 years 4 months 24 days	5 years 1 month 6 days
Available-for-sale securities, total, weighted-average yield		2.57%	2.25%
Held-to-maturity securities, Amortized Cost		$ 46,050	$ 44,362
Held-to-maturity securities, total, fair value		$ 44,964	$ 43,723
Held-to-maturity securities, total, weighted-average maturity in years		5 years 2 months 12 days	4 years 8 months 12 days
Held-to-maturity securities, total, weighted-average yield		2.46%	2.14%
U.S. Treasury and Agencies [Member]
Contractual Maturities of Investment Securities [Line Items]
Available-for-sale securities, maturing in one year or less, amortized cost		$ 2,231
Available-for-sale securities, maturing after one year through five years, amortized cost		16,735
Available-for-sale securities, maturing after five years through ten years, amortized cost		638
Available-for-sale securities, Amortized Cost		19,604	$ 23,586
Available-for-sale securities, maturing in one year or less, fair value		2,221
Amortized Cost of Investment Securities		24,706	$ 28,767
Available-for-sale securities, maturing after one year through five years, fair value		$ 16,416
Amortized Cost of Investment Securities, Percentage		21.80%	25.50%
Available-for-sale securities, maturing after five years through ten years, fair value		$ 620
Available-for-sale securities, total, fair value		$ 19,257	$ 23,301
Available-for-sale securities, maturing in one year or less, weighted-average maturity in years		6 months
Available-for-sale securities, maturing after one year through five years, weighted-average maturity in years		2 years 9 months 18 days
Available-for-sale securities, maturing after five years through ten years, weighted-average maturity in years		7 years 4 months 24 days
Available-for-sale securities, total, weighted-average maturity in years		2 years 8 months 12 days
Available-for-sale securities, maturing in one year or less, weighted-average yield		1.49%
Available-for-sale securities, maturing after one year through five years, weighted-average yield		1.75%
Available-for-sale securities, maturing after five years through ten years, weighted-average yield		2.82%
Available-for-sale securities, total, weighted-average yield		1.76%
Held-to-maturity securities, maturing in one year or less, amortized cost		$ 650
Held-to-maturity securities, maturing after one year through five years, amortized cost		3,459
Held-to-maturity securities, maturing after five years through ten years, amortized cost		993
Held-to-maturity securities, Amortized Cost		5,102	5,181
Held-to-maturity securities, maturing in one year or less, fair value		647
Held-to-maturity securities, maturing after one year through five years, fair value		3,338
Held-to-maturity securities, maturing after five years through ten years, fair value		976
Held-to-maturity securities, total, fair value		$ 4,961	5,066
Held-to-maturity securities, maturing in one year or less, weighted-average maturity in years		6 months
Held-to-maturity securities, maturing after one year through five years, weighted-average maturity in years		4 years 2 months 12 days
Held-to-maturity securities, maturing after five years through ten years, weighted-average maturity in years		5 years 10 months 24 days
Held-to-maturity securities, total, weighted-average maturity in years		4 years 1 month 6 days
Held-to-maturity securities, maturing in one year or less, weighted-average yield		1.73%
Held-to-maturity securities, maturing after one year through five years, weighted-average yield		1.64%
Held-to-maturity securities, maturing after five years through ten years, weighted-average yield		2.36%
Held-to-maturity securities, total, weighted-average yield		1.79%
Mortgage-Backed Securities [Member]
Contractual Maturities of Investment Securities [Line Items]
Available-for-sale securities, maturing in one year or less, amortized cost		$ 60
Available-for-sale securities, maturing after one year through five years, amortized cost		19,058
Available-for-sale securities, maturing after five years through ten years, amortized cost		18,987
Available-for-sale securities, maturing after ten years, amortized cost		2,439
Available-for-sale securities, Amortized Cost		40,544
Available-for-sale securities, maturing in one year or less, fair value		60
Amortized Cost of Investment Securities		81,464	$ 77,606
Available-for-sale securities, maturing after one year through five years, fair value		$ 18,598
Amortized Cost of Investment Securities, Percentage		71.80%	68.60%
Available-for-sale securities, maturing after five years through ten years, fair value		$ 18,648
Available-for-sale securities, maturing after ten years, fair value		2,448
Available-for-sale securities, total, fair value		$ 39,754
Available-for-sale securities, maturing in one year or less, weighted-average maturity in years		2 months 12 days
Available-for-sale securities, maturing after one year through five years, weighted-average maturity in years		4 years 4 months 24 days
Available-for-sale securities, maturing after five years through ten years, weighted-average maturity in years		6 years 4 months 24 days
Available-for-sale securities, maturing after ten years, weighted- average maturity in years		14 years 2 months 12 days
Available-for-sale securities, total, weighted-average maturity in years		5 years 10 months 24 days
Available-for-sale securities, maturing in one year or less, weighted-average yield		3.85%
Available-for-sale securities, maturing after one year through five years, weighted-average yield		2.38%
Available-for-sale securities, maturing after five years through ten years, weighted-average yield		2.81%
Available-for-sale securities, maturing after ten years, weighted-average yield		3.45%
Available-for-sale securities, total, weighted-average yield		2.65%
Held-to-maturity securities, maturing in one year or less, amortized cost		$ 65
Held-to-maturity securities, maturing after one year through five years, amortized cost		18,247
Held-to-maturity securities, maturing after five years through ten years, amortized cost		22,280
Held-to-maturity securities, maturing after ten years, amortized cost		328
Held-to-maturity securities, Amortized Cost		40,920
Held-to-maturity securities, maturing in one year or less, fair value		65
Held-to-maturity securities, maturing after one year through five years, fair value		17,688
Held-to-maturity securities, maturing after five years through ten years, fair value		21,891
Held-to-maturity securities, maturing after ten years, fair value		327
Held-to-maturity securities, total, fair value		$ 39,971
Held-to-maturity securities, maturing in one year or less, weighted-average maturity in years		9 months 18 days
Held-to-maturity securities, maturing after one year through five years, weighted-average maturity in years		4 years 1 month 6 days
Held-to-maturity securities, maturing after five years through ten years, weighted-average maturity in years		6 years 2 months 12 days
Held-to-maturity securities, maturing after ten years, weighted-average maturity in years		13 years 10 months 24 days
Held-to-maturity securities, total, weighted-average maturity in years		5 years 3 months 18 days
Held-to-maturity securities, maturing in one year or less, weighted-average yield		2.37%
Held-to-maturity securities, maturing after one year through five years, weighted-average yield		2.17%
Held-to-maturity securities, maturing after five years through ten years, weighted-average yield		2.84%
Held-to-maturity securities, maturing after ten years, weighted-average yield		3.34%
Held-to-maturity securities, total, weighted-average yield		2.54%
Asset-Backed Securities [Member]
Contractual Maturities of Investment Securities [Line Items]
Available-for-sale securities, maturing after one year through five years, amortized cost		$ 397
Available-for-sale securities, Amortized Cost		397
Amortized Cost of Investment Securities		402	$ 419
Available-for-sale securities, maturing after one year through five years, fair value		$ 403
Amortized Cost of Investment Securities, Percentage		0.40%	0.40%
Available-for-sale securities, total, fair value		$ 403
Available-for-sale securities, maturing after one year through five years, weighted-average maturity in years		3 years 6 months
Available-for-sale securities, total, weighted-average maturity in years		3 years 6 months
Available-for-sale securities, maturing after one year through five years, weighted-average yield		3.69%
Available-for-sale securities, total, weighted-average yield		3.69%
Held-to-maturity securities, maturing after one year through five years, amortized cost		$ 3
Held-to-maturity securities, maturing after five years through ten years, amortized cost		2
Held-to-maturity securities, Amortized Cost		5
Held-to-maturity securities, maturing after one year through five years, fair value		4
Held-to-maturity securities, maturing after five years through ten years, fair value		3
Held-to-maturity securities, maturing after ten years, fair value		1
Held-to-maturity securities, total, fair value		$ 8
Held-to-maturity securities, maturing after one year through five years, weighted-average maturity in years		3 years 3 months 18 days
Held-to-maturity securities, maturing after five years through ten years, weighted-average maturity in years		5 years 7 months 6 days
Held-to-maturity securities, maturing after ten years, weighted-average maturity in years		15 years 7 months 6 days
Held-to-maturity securities, total, weighted-average maturity in years		4 years 1 month 6 days
Held-to-maturity securities, maturing after one year through five years, weighted-average yield		3.19%
Held-to-maturity securities, maturing after five years through ten years, weighted-average yield		3.29%
Held-to-maturity securities, maturing after ten years, weighted-average yield		3.20%
Held-to-maturity securities, total, weighted-average yield		3.22%
Obligations of State and Political Subdivisions [Member]
Contractual Maturities of Investment Securities [Line Items]
Available-for-sale securities, maturing in one year or less, amortized cost		$ 284
Available-for-sale securities, maturing after one year through five years, amortized cost		552
Available-for-sale securities, maturing after five years through ten years, amortized cost		4,093
Available-for-sale securities, maturing after ten years, amortized cost		1,907
Available-for-sale securities, Amortized Cost		6,836	$ 6,240
Available-for-sale securities, maturing in one year or less, fair value		287
Amortized Cost of Investment Securities		6,842	$ 6,246
Available-for-sale securities, maturing after one year through five years, fair value		$ 558
Amortized Cost of Investment Securities, Percentage		6.00%	5.50%
Available-for-sale securities, maturing after five years through ten years, fair value		$ 4,069
Available-for-sale securities, maturing after ten years, fair value		1,787
Available-for-sale securities, total, fair value		$ 6,701	$ 6,358
Available-for-sale securities, maturing in one year or less, weighted-average maturity in years		6 months
Available-for-sale securities, maturing after one year through five years, weighted-average maturity in years		3 years 6 months
Available-for-sale securities, maturing after five years through ten years, weighted-average maturity in years		7 years 10 months 24 days
Available-for-sale securities, maturing after ten years, weighted- average maturity in years		19 years 1 month 6 days
Available-for-sale securities, total, weighted-average maturity in years		10 years 4 months 24 days
Available-for-sale securities, maturing in one year or less, weighted-average yield		5.67%
Available-for-sale securities, maturing after one year through five years, weighted-average yield		4.53%
Available-for-sale securities, maturing after five years through ten years, weighted-average yield		4.36%
Available-for-sale securities, maturing after ten years, weighted-average yield		4.09%
Available-for-sale securities, total, weighted-average yield		4.35%
Held-to-maturity securities, maturing after one year through five years, amortized cost		$ 1
Held-to-maturity securities, maturing after five years through ten years, amortized cost		5
Held-to-maturity securities, Amortized Cost		6	6
Held-to-maturity securities, maturing after one year through five years, fair value		1
Held-to-maturity securities, maturing after five years through ten years, fair value		6
Held-to-maturity securities, total, fair value		$ 7	7
Held-to-maturity securities, maturing in one year or less, weighted-average maturity in years		2 months 12 days
Held-to-maturity securities, maturing after one year through five years, weighted-average maturity in years		3 years 1 month 6 days
Held-to-maturity securities, maturing after five years through ten years, weighted-average maturity in years		7 years 2 months 12 days
Held-to-maturity securities, total, weighted-average maturity in years		6 years 9 months 18 days
Held-to-maturity securities, maturing in one year or less, weighted-average yield		6.49%
Held-to-maturity securities, maturing after one year through five years, weighted-average yield		6.65%
Held-to-maturity securities, maturing after five years through ten years, weighted-average yield		1.97%
Held-to-maturity securities, total, weighted-average yield		2.45%
Other Debt Securities and Obligations of Foreign Governments [Member]
Contractual Maturities of Investment Securities [Line Items]
Amortized Cost of Investment Securities		$ 17	$ 41
Held-to-maturity securities, maturing in one year or less, amortized cost		9
Held-to-maturity securities, maturing after one year through five years, amortized cost		8
Held-to-maturity securities, Amortized Cost		17
Held-to-maturity securities, maturing in one year or less, fair value		9
Held-to-maturity securities, maturing after one year through five years, fair value		8
Held-to-maturity securities, total, fair value		$ 17
Held-to-maturity securities, maturing in one year or less, weighted-average maturity in years		7 months 6 days
Held-to-maturity securities, maturing after one year through five years, weighted-average maturity in years		1 year 4 months 24 days
Held-to-maturity securities, total, weighted-average maturity in years		1 year
Held-to-maturity securities, maturing in one year or less, weighted-average yield		3.68%
Held-to-maturity securities, maturing after one year through five years, weighted-average yield		3.34%
Held-to-maturity securities, total, weighted-average yield		3.52%
[1]	Includes only collateral pledged by the Company where counterparties have the right to sell or pledge the collateral.

Investment Securities - Inves_2

Investment Securities - Investment Securities (Parenthetical) (Detail)	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Contractual Maturities of Investment Securities [Abstract]
Federal statutory rate	21.00%	35.00%	35.00%
Weighted-average maturity of available-for-sale investment securities	5 years 4 months 24 days	5 years 1 month 6 days
Weighted-average yield of available-for-sale investment securities	2.57%	2.25%
Weighted-average maturity of held-to-maturity investment securities	5 years 2 months 12 days	4 years 8 months 12 days
Weighted-average yield of held-to-maturity investment securities	2.46%	2.14%

Loans and Allowances for Credit

Loans and Allowances for Credit Losses - Summary of Nonperforming Assets (Detail) - USD ($) $ in Millions	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Nonperforming Assets [Line Items]
Nonperforming Loans	$ 817	$ 1,008	$ 1,368	$ 1,192	$ 1,466
Other Real Estate	111	141	186	280	288
Covered Other Real Estate		21	26	32	37
Other Assets	61	30	23	19	17
Total nonperforming assets	989	1,200	1,603	1,523	1,808
Accruing loans 90 days or more past due	$ 584	$ 720	$ 764	$ 831	$ 945
Nonperforming loans to total loans	0.28%	0.36%	0.50%	0.46%	0.59%
Nonperforming assets to total loans plus other real estate	0.34%	0.43%	0.59%	0.58%	0.73%
Lease Financing [Member]
Nonperforming Assets [Line Items]
Nonperforming Loans	$ 23	$ 24	$ 40	$ 14	$ 13
Commercial Mortgages [Member]
Nonperforming Assets [Line Items]
Nonperforming Loans	76	108	87	92	175
Construction and Development [Member]
Nonperforming Assets [Line Items]
Nonperforming Loans	39	34	37	35	84
Credit Card [Member]
Nonperforming Assets [Line Items]
Nonperforming Loans		1	3	9	30
Accruing loans 90 days or more past due	293	284
Retail Leasing [Member]
Nonperforming Assets [Line Items]
Nonperforming Loans	12	8	2	3	1
Home Equity and Second Mortgages [Member]
Nonperforming Assets [Line Items]
Nonperforming Loans	145	126	128	136	170
Covered Loans [Member]
Nonperforming Assets [Line Items]
Nonperforming Loans		6	6	8	14
Accruing loans 90 days or more past due		148
Commercial [Member]
Nonperforming Assets [Line Items]
Nonperforming Loans	186	225	443	160	99
Commercial [Member]
Nonperforming Assets [Line Items]
Nonperforming Loans	209	249	483	174	112
Accruing loans 90 days or more past due	69	57
Commercial Real Estate [Member]
Nonperforming Assets [Line Items]
Nonperforming Loans	115	142	124	127	259
Accruing loans 90 days or more past due		6
Residential Mortgages [Member]
Nonperforming Assets [Line Items]
Nonperforming Loans	296	442	595	712	864
Accruing loans 90 days or more past due	114	130
Other [Member]
Nonperforming Assets [Line Items]
Nonperforming Loans	40	34	27	23	16
Other Retail [Member]
Nonperforming Assets [Line Items]
Nonperforming Loans	197	168	$ 157	$ 162	$ 187
Accruing loans 90 days or more past due	$ 108	$ 95

Loans and Allowances for Cred_2

Loans and Allowances for Credit Losses - Summary of Change in Nonperforming Assets (Detail) $ in Millions	12 Months Ended
	Dec. 31, 2018USD ($)
Nonperforming Assets [Line Items]
Balance December 31, 2017	$ 1,200
Additions to nonperforming assets
New nonaccrual loans and foreclosed properties	797
Advances on loans	22
Total additions	819
Reductions in nonperforming assets
Paydowns, payoffs	(316)
Net sales	(291)
Return to performing status	(201)
Charge-offs	(222)
Total reductions	(1,030)
Net additions to (reductions in) nonperforming assets	(211)
Balance December 31, 2018	989
Commercial and Commercial Real Estate Loans [Member]
Nonperforming Assets [Line Items]
Balance December 31, 2017	404
Additions to nonperforming assets
New nonaccrual loans and foreclosed properties	427
Advances on loans	18
Total additions	445
Reductions in nonperforming assets
Paydowns, payoffs	(167)
Net sales	(131)
Return to performing status	(20)
Charge-offs	(193)
Total reductions	(511)
Net additions to (reductions in) nonperforming assets	(66)
Balance December 31, 2018	338
Residential Mortgages, Credit Card and Other Retail [Member]
Nonperforming Assets [Line Items]
Balance December 31, 2017	796
Additions to nonperforming assets
New nonaccrual loans and foreclosed properties	370
Advances on loans	4
Total additions	374
Reductions in nonperforming assets
Paydowns, payoffs	(149)
Net sales	(160)
Return to performing status	(181)
Charge-offs	(29)
Total reductions	(519)
Net additions to (reductions in) nonperforming assets	(145)
Balance December 31, 2018	$ 651

Loans and Allowances for Cred_3

Loans and Allowances for Credit Losses - Summary of Change in Nonperforming Assets (Parenthetical) (Detail) - USD ($) $ in Millions	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Receivables [Abstract]
GNMA loans that are 90 days past due and continue to accrue interest	$ 1,700	$ 1,900	$ 2,500	$ 2,900	$ 3,100
Foreclosed GNMA loans that continue to accrue interest and excluded from nonperforming assets	$ 235	$ 267	$ 373	$ 535	$ 641

Shareholders' Equity - Regulato

Shareholders' Equity - Regulatory Capital Ratios (Detail) - USD ($) $ in Millions	Dec. 31, 2018	Dec. 31, 2017
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
Common equity tier 1 capital as a percent of risk-weighted assets - Minimum capital ratio requirement	6.375%	5.75%
Tier 1 capital as a percent of risk-weighted assets - Minimum capital ratio requirement	7.875%	7.25%
Total risk-based capital as a percent of risk-weighted assets - Minimum capital ratio requirement	9.875%	9.25%
Tier 1 capital as a percent of adjusted quarterly average assets (leverage ratio) - Minimum capital ratio requirement	4.00%	4.00%
Tier 1 capital as a percent of total on- and off-balance sheet leverage exposure (total leverage exposure ratio) - Minimum capital ratio requirement	3.00%
Common equity tier 1 capital as a percent of risk-weighted assets - Well capitalized ratio requirement	6.50%	6.50%
Tier 1 capital as a percent of risk-weighted assets - Well capitalized ratio requirement	8.00%	8.00%
Total risk-based capital as a percent of risk-weighted assets - Well capitalized ratio requirement	10.00%	10.00%
Tier 1 capital as a percent of adjusted quarterly average assets (leverage ratio) - Well capitalized ratio requirement	5.00%	5.00%
Tier 1 capital as a percent of total on- and off-balance sheet leverage exposure (total leverage exposure ratio) - Well capitalized ratio requirement	3.00%
Basel III Standardized Approach: [Member]
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
Common equity tier 1 capital	$ 34,724	$ 34,369
Tier 1 capital	40,741	39,806
Total risk-based capital	48,178	47,503
Risk-weighted assets	381,661	367,771
Basel III Advanced Approaches: [Member]
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
Common equity tier 1 capital	34,724	34,369
Tier 1 capital	40,741	39,806
Total risk-based capital	45,136	44,477
Risk-weighted assets	295,002	287,211
U.S. Bancorp [Member] | Basel III Standardized Approach: [Member]
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
Common equity tier 1 capital	34,724	34,369
Tier 1 capital	40,741	39,806
Total risk-based capital	48,178	47,503
Risk-weighted assets	$ 381,661	$ 367,771
Common equity tier 1 capital as a percent of risk-weighted assets	9.10%	9.30%
Tier 1 capital as a percent of risk-weighted assets	10.70%	10.80%
Total risk-based capital as a percent of risk-weighted assets	12.60%	12.90%
Tier 1 capital as a percent of adjusted quarterly average assets (leverage ratio)	9.00%	8.90%
U.S. Bancorp [Member] | Basel III Advanced Approaches: [Member]
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
Common equity tier 1 capital	$ 34,724	$ 34,369
Tier 1 capital	40,741	39,806
Total risk-based capital	45,136	44,477
Risk-weighted assets	$ 295,002	$ 287,211
Common equity tier 1 capital as a percent of risk-weighted assets	11.80%	12.00%
Tier 1 capital as a percent of risk-weighted assets	13.80%	13.90%
Total risk-based capital as a percent of risk-weighted assets	15.30%	15.50%
Tier 1 capital as a percent of total on- and off-balance sheet leverage exposure (total leverage exposure ratio)	7.20%
U.S. Bank National Association [Member] | Basel III Standardized Approach: [Member]
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
Common equity tier 1 capital	$ 38,318	$ 37,586
Tier 1 capital	38,351	37,701
Total risk-based capital	45,960	45,466
Risk-weighted assets	$ 374,299	$ 361,973
Common equity tier 1 capital as a percent of risk-weighted assets	10.20%	10.40%
Tier 1 capital as a percent of risk-weighted assets	10.20%	10.40%
Total risk-based capital as a percent of risk-weighted assets	12.30%	12.60%
Tier 1 capital as a percent of adjusted quarterly average assets (leverage ratio)	8.60%	8.60%
U.S. Bank National Association [Member] | Basel III Advanced Approaches: [Member]
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
Common equity tier 1 capital	$ 38,318	$ 37,586
Tier 1 capital	38,351	37,701
Total risk-based capital	42,883	42,414
Risk-weighted assets	$ 287,897	$ 281,659
Common equity tier 1 capital as a percent of risk-weighted assets	13.30%	13.30%
Tier 1 capital as a percent of risk-weighted assets	13.30%	13.40%
Total risk-based capital as a percent of risk-weighted assets	14.90%	15.10%
Tier 1 capital as a percent of total on- and off-balance sheet leverage exposure (total leverage exposure ratio)	6.90%

Significant Accounting Polici_4

Significant Accounting Policies - Line of Business Financial Performance (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Condensed Income Statement
Net interest income (taxable-equivalent basis)	$ 13,035	$ 12,585
Net interest income (taxable-equivalent basis), Percent change	3.60%
Noninterest income	$ 9,572	9,260
Noninterest income, Percent change	3.40%
Securities gains (losses), net	$ 30	57	$ 22
Securities gains (losses), net, Percent change	(47.40%)
Total net revenue	$ 22,637	21,902
Total net revenue, Percent change	3.40%
Noninterest expense, Percent change	(2.50%)
Other intangibles, Percent change	(8.00%)
Total noninterest expense, Percent change	(2.50%)
Income before provision and income taxes, Percent change	11.60%
Provision for credit losses, Percent change	(0.80%)
Income before income taxes, Percent change	13.90%
Income taxes and taxable-equivalent adjustment, Percent change	13.70%
Net income, Percent change	13.90%
Net (income) loss attributable to noncontrolling interests, Percent change	20.00%
Net income attributable to U.S. Bancorp, Percent change	14.10%
Noninterest expense	$ 12,303	12,615
Other intangibles	161	175	179
Total noninterest expense	12,464	12,790	11,527
Income before provision and income taxes	10,173	9,112
Provision for credit losses	1,379	1,390	1,324
Income before income taxes	8,794	7,722
Income taxes and taxable-equivalent adjustment	1,670	1,469
Net income	7,124	6,253	5,944
Net (income) loss attributable to noncontrolling interests	(28)	(35)	(56)
Net income attributable to U.S. Bancorp	7,096	6,218	$ 5,888
Average Balance Sheet
Commercial	$ 98,854	95,904
Commercial, Percent change	3.10%
Commercial real estate	$ 39,977	42,077
Commercial real estate, Percent change	(5.00%)
Residential mortgages	$ 61,893	58,784
Residential mortgages, Percent change	5.30%
Credit card	$ 21,672	20,906
Credit card, Percent change	3.70%
Other retail	$ 56,136	55,416
Other retail, Percent change	1.30%
Total loans, excluding covered loans	$ 278,532	273,087
Total loans, excluding covered loans, Percent change	2.00%
Covered loans	$ 2,169	3,450
Covered loans, Percent change	(37.10%)
Total loans	$ 280,701	276,537
Total loans, Percent change	1.50%
Goodwill, Percent change	0.80%
Other intangible assets, Percent change	6.20%
Assets, Percent change	1.90%
Noninterest-bearing deposits, Percent change	(4.60%)
Interest checking, Percent change	3.20%
Savings products, Percent change	(2.30%)
Time deposits, Percent change	14.50%
Total U.S. Bancorp shareholders' equity, Percent change	2.60%
Goodwill	$ 9,439	9,361
Other intangible assets	3,433	3,234
Assets	457,014	448,582
Noninterest-bearing deposits	78,196	81,933
Interest checking	70,154	67,953
Savings products	146,445	149,869
Time deposits	38,667	33,759
Total deposits	333,462	333,514
Total U.S. Bancorp shareholders' equity	50,391	49,097
Corporate and Commercial Banking [Member]
Condensed Income Statement
Net interest income (taxable-equivalent basis)	$ 2,938	2,905
Net interest income (taxable-equivalent basis), Percent change	1.10%
Noninterest income	$ 844	915
Noninterest income, Percent change	(7.80%)
Securities gains (losses), net		(3)
Total net revenue	$ 3,782	3,817
Total net revenue, Percent change	(0.90%)
Noninterest expense, Percent change	1.70%
Total noninterest expense, Percent change	1.70%
Income before provision and income taxes, Percent change	(2.70%)
Income before income taxes, Percent change	(6.20%)
Income taxes and taxable-equivalent adjustment, Percent change	(35.50%)
Net income, Percent change	10.60%
Net income attributable to U.S. Bancorp, Percent change	10.60%
Noninterest expense	$ 1,578	1,552
Other intangibles	4	4
Total noninterest expense	1,582	1,556
Income before provision and income taxes	2,200	2,261
Provision for credit losses	65	(14)
Income before income taxes	2,135	2,275
Income taxes and taxable-equivalent adjustment	534	828
Net income	1,601	1,447
Net income attributable to U.S. Bancorp	1,601	1,447
Average Balance Sheet
Commercial	$ 75,010	73,483
Commercial, Percent change	2.10%
Commercial real estate	$ 18,869	20,452
Commercial real estate, Percent change	(7.70%)
Residential mortgages	$ 6	6
Other retail	1
Total loans, excluding covered loans	$ 93,886	93,941
Total loans, excluding covered loans, Percent change	(0.10%)
Total loans	$ 93,886	93,941
Total loans, Percent change	(0.10%)
Other intangible assets, Percent change	(15.40%)
Assets, Percent change	0.30%
Noninterest-bearing deposits, Percent change	(8.20%)
Interest checking, Percent change	1.00%
Savings products, Percent change	(8.50%)
Time deposits, Percent change	11.30%
Total deposits, Percent change	(4.50%)
Total U.S. Bancorp shareholders' equity, Percent change	6.00%
Goodwill	$ 1,647	1,647
Other intangible assets	11	13
Assets	102,834	102,528
Noninterest-bearing deposits	33,074	36,030
Interest checking	10,046	9,950
Savings products	41,889	45,764
Time deposits	17,966	16,136
Total deposits	102,975	107,880
Total U.S. Bancorp shareholders' equity	10,465	9,870
Consumer and Business Banking [Member]
Condensed Income Statement
Net interest income (taxable-equivalent basis)	$ 6,164	5,832
Net interest income (taxable-equivalent basis), Percent change	5.70%
Noninterest income	$ 2,302	2,386
Noninterest income, Percent change	(3.50%)
Total net revenue	$ 8,466	8,218
Total net revenue, Percent change	3.00%
Noninterest expense, Percent change	3.20%
Other intangibles, Percent change	(10.00%)
Total noninterest expense, Percent change	3.10%
Income before provision and income taxes, Percent change	2.90%
Provision for credit losses, Percent change	(31.20%)
Income before income taxes, Percent change	7.00%
Income taxes and taxable-equivalent adjustment, Percent change	(26.50%)
Net income, Percent change	26.20%
Net income attributable to U.S. Bancorp, Percent change	26.20%
Noninterest expense	$ 5,217	5,056
Other intangibles	27	30
Total noninterest expense	5,244	5,086
Income before provision and income taxes	3,222	3,132
Provision for credit losses	232	337
Income before income taxes	2,990	2,795
Income taxes and taxable-equivalent adjustment	748	1,018
Net income	2,242	1,777
Net income attributable to U.S. Bancorp	2,242	1,777
Average Balance Sheet
Commercial	$ 9,855	9,980
Commercial, Percent change	(1.30%)
Commercial real estate	$ 16,272	16,702
Commercial real estate, Percent change	(2.60%)
Residential mortgages	$ 58,549	55,939
Residential mortgages, Percent change	4.70%
Other retail	$ 53,990	53,199
Other retail, Percent change	1.50%
Total loans, excluding covered loans	$ 138,666	135,820
Total loans, excluding covered loans, Percent change	2.10%
Covered loans	$ 2,169	3,445
Covered loans, Percent change	(37.00%)
Total loans	$ 140,835	139,265
Total loans, Percent change	1.10%
Goodwill, Percent change	(0.70%)
Other intangible assets, Percent change	7.80%
Assets, Percent change	1.00%
Noninterest-bearing deposits, Percent change	(0.60%)
Interest checking, Percent change	6.10%
Savings products, Percent change	1.60%
Time deposits, Percent change	3.30%
Total deposits, Percent change	2.80%
Total U.S. Bancorp shareholders' equity, Percent change	6.10%
Goodwill	$ 3,605	3,632
Other intangible assets	2,953	2,740
Assets	155,290	153,815
Noninterest-bearing deposits	27,526	27,680
Interest checking	50,135	47,231
Savings products	61,484	60,496
Time deposits	13,321	12,894
Total deposits	152,466	148,301
Total U.S. Bancorp shareholders' equity	11,816	11,133
Wealth Management and Investment Services [Member]
Condensed Income Statement
Net interest income (taxable-equivalent basis)	$ 1,122	1,007
Net interest income (taxable-equivalent basis), Percent change	11.40%
Noninterest income	$ 1,748	1,643
Noninterest income, Percent change	6.40%
Total net revenue	$ 2,870	2,650
Total net revenue, Percent change	8.30%
Noninterest expense, Percent change	10.10%
Other intangibles, Percent change	(20.00%)
Total noninterest expense, Percent change	9.70%
Income before provision and income taxes, Percent change	6.00%
Income before income taxes, Percent change	6.10%
Income taxes and taxable-equivalent adjustment, Percent change	(26.60%)
Net income, Percent change	24.80%
Net income attributable to U.S. Bancorp, Percent change	24.80%
Noninterest expense	$ 1,780	1,617
Other intangibles	16	20
Total noninterest expense	1,796	1,637
Income before provision and income taxes	1,074	1,013
Provision for credit losses	(2)	(1)
Income before income taxes	1,076	1,014
Income taxes and taxable-equivalent adjustment	270	368
Net income	806	646
Net income attributable to U.S. Bancorp	806	646
Average Balance Sheet
Commercial	$ 3,779	3,436
Commercial, Percent change	10.00%
Commercial real estate	$ 520	511
Commercial real estate, Percent change	1.80%
Residential mortgages	$ 3,333	2,831
Residential mortgages, Percent change	17.70%
Other retail	$ 1,740	1,755
Other retail, Percent change	(0.90%)
Total loans, excluding covered loans	$ 9,372	8,533
Total loans, excluding covered loans, Percent change	9.80%
Total loans	$ 9,372	8,533
Total loans, Percent change	9.80%
Goodwill, Percent change	0.10%
Other intangible assets, Percent change	(22.20%)
Assets, Percent change	5.90%
Noninterest-bearing deposits, Percent change	(5.60%)
Interest checking, Percent change	(7.50%)
Savings products, Percent change	(1.80%)
Time deposits, Percent change	(3.70%)
Total deposits, Percent change	(3.50%)
Total U.S. Bancorp shareholders' equity, Percent change	2.20%
Goodwill	$ 1,618	1,617
Other intangible assets	63	81
Assets	12,445	11,750
Noninterest-bearing deposits	14,011	14,846
Interest checking	9,929	10,729
Savings products	42,223	42,978
Time deposits	3,858	4,008
Total deposits	70,021	72,561
Total U.S. Bancorp shareholders' equity	2,475	2,421
Payment Services [Member]
Condensed Income Statement
Net interest income (taxable-equivalent basis)	$ 2,445	2,403
Net interest income (taxable-equivalent basis), Percent change	1.70%
Noninterest income	$ 3,601	3,368
Noninterest income, Percent change	6.90%
Total net revenue	$ 6,046	5,771
Total net revenue, Percent change	4.80%
Noninterest expense, Percent change	8.00%
Other intangibles, Percent change	(5.80%)
Total noninterest expense, Percent change	7.40%
Income before provision and income taxes, Percent change	2.30%
Provision for credit losses, Percent change	(0.10%)
Income before income taxes, Percent change	3.70%
Income taxes and taxable-equivalent adjustment, Percent change	(28.60%)
Net income, Percent change	22.10%
Net income attributable to U.S. Bancorp, Percent change	23.40%
Noninterest expense	$ 2,875	2,662
Other intangibles	114	121
Total noninterest expense	2,989	2,783
Income before provision and income taxes	3,057	2,988
Provision for credit losses	1,081	1,082
Income before income taxes	1,976	1,906
Income taxes and taxable-equivalent adjustment	495	693
Net income	1,481	1,213
Net (income) loss attributable to noncontrolling interests		(13)
Net income attributable to U.S. Bancorp	1,481	1,200
Average Balance Sheet
Commercial	$ 9,026	8,082
Commercial, Percent change	11.70%
Credit card	$ 21,672	20,906
Credit card, Percent change	3.70%
Other retail	$ 404	459
Other retail, Percent change	(12.00%)
Total loans, excluding covered loans	$ 31,102	29,447
Total loans, excluding covered loans, Percent change	5.60%
Total loans	$ 31,102	29,447
Total loans, Percent change	5.60%
Goodwill, Percent change	4.20%
Other intangible assets, Percent change	1.50%
Assets, Percent change	5.40%
Noninterest-bearing deposits, Percent change	6.00%
Savings products, Percent change	4.90%
Time deposits, Percent change	50.00%
Total deposits, Percent change	6.00%
Total U.S. Bancorp shareholders' equity, Percent change	5.60%
Goodwill	$ 2,569	2,465
Other intangible assets	406	400
Assets	36,916	35,009
Noninterest-bearing deposits	1,099	1,037
Savings products	107	102
Time deposits	3	2
Total deposits	1,209	1,141
Total U.S. Bancorp shareholders' equity	6,629	6,275
Treasury and Corporate Support [Member]
Condensed Income Statement
Net interest income (taxable-equivalent basis)	$ 366	438
Net interest income (taxable-equivalent basis), Percent change	(16.40%)
Noninterest income	$ 1,077	948
Noninterest income, Percent change	13.60%
Securities gains (losses), net	$ 30	60
Securities gains (losses), net, Percent change	(50.00%)
Total net revenue	$ 1,473	1,446
Total net revenue, Percent change	1.90%
Noninterest expense, Percent change	(50.60%)
Total noninterest expense, Percent change	(50.60%)
Income taxes and taxable-equivalent adjustment, Percent change	73.80%
Net income, Percent change	(15.00%)
Net (income) loss attributable to noncontrolling interests, Percent change	(27.30%)
Net income attributable to U.S. Bancorp, Percent change	(15.90%)
Noninterest expense	$ 853	1,728
Total noninterest expense	853	1,728
Income before provision and income taxes	620	(282)
Provision for credit losses	3	(14)
Income before income taxes	617	(268)
Income taxes and taxable-equivalent adjustment	(377)	(1,438)
Net income	994	1,170
Net (income) loss attributable to noncontrolling interests	(28)	(22)
Net income attributable to U.S. Bancorp	966	1,148
Average Balance Sheet
Commercial	$ 1,184	923
Commercial, Percent change	28.30%
Commercial real estate	$ 4,316	4,412
Commercial real estate, Percent change	(2.20%)
Residential mortgages	$ 5	8
Residential mortgages, Percent change	(37.50%)
Other retail	$ 1	3
Other retail, Percent change	(66.70%)
Total loans, excluding covered loans	$ 5,506	5,346
Total loans, excluding covered loans, Percent change	3.00%
Covered loans		5
Total loans	$ 5,506	5,351
Total loans, Percent change	2.90%
Assets, Percent change	2.80%
Noninterest-bearing deposits, Percent change	6.20%
Interest checking, Percent change	2.30%
Savings products, Percent change	40.30%
Total deposits, Percent change	87.00%
Total U.S. Bancorp shareholders' equity, Percent change	(2.00%)
Assets	$ 149,529	145,480
Noninterest-bearing deposits	2,486	2,340
Interest checking	44	43
Savings products	742	529
Time deposits	3,519	719
Total deposits	6,791	3,631
Total U.S. Bancorp shareholders' equity	$ 19,006	$ 19,398

Significant Accounting Polici_5

Significant Accounting Policies - Line of Business Financial Performance (Parenthetical) (Detail) - USD ($) $ in Billions	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017
Line Of Business Financial Performance [Line Items]
Revenue generated from certain contracts with customers included in noninterest income	$ 7.4	$ 7.1
Payment Services [Member]
Line Of Business Financial Performance [Line Items]
Rewards and rebate costs and certain partner payments included in noninterest income	$ 2.2	$ 2

Significant Accounting Polici_6

Significant Accounting Policies - Additional Information (Detail)	12 Months Ended
	Dec. 31, 2018USD ($)SecurityLoanSegmentBusiness
Significant Accounting Policies Additional Information [Line Items]
Number of reportable operating segments | Segment	5
Wealth Management and Investment Services number of businesses | Business	4
Number of loan portfolio segments | Segment	2
Commercial Lending Segment [Member]
Significant Accounting Policies Additional Information [Line Items]
Number of classes of loans | SecurityLoan	2
Commercial Lending Segment [Member] | Minimum [Member]
Significant Accounting Policies Additional Information [Line Items]
Impairment loan threshold for allowance in which loans are individually analyzed | $	$ 5,000,000
Consumer Lending Segment [Member]
Significant Accounting Policies Additional Information [Line Items]
Number of classes of loans | SecurityLoan	3

Accounting Changes - Additional

Accounting Changes - Additional Information (Detail) - USD ($) $ in Millions	Jan. 01, 2018	Dec. 31, 2018
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Expected increase in lease assets related to adoption of accounting guidance		$ 1,300
Expected increase in lease related liabilities related to adoption of accounting guidance		1,300
Retained Earnings [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Effect of adoption of new accounting guidance		300
Accumulated Other Comprehensive Income (Loss) [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Effect of adoption of new accounting guidance		$ (300)
Adjustments for New Accounting Pronouncement [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Transfer from held-to-maturity to available-for-sale securities	$ 1,500

Restrictions on Cash and Due _2

Restrictions on Cash and Due from Banks - Additional Information (Detail) - USD ($) $ in Billions	Dec. 31, 2018	Dec. 31, 2017
Cash and Cash Equivalents [Abstract]
Minimum average reserve balances required by banking regulators	$ 3.1	$ 3.1
Balances held at the federal reserve and other financial institutions	$ 7.5	$ 2.4

Investment Securities - Inves_3

Investment Securities - Investment Securities Held-to-Maturity (Detail) - USD ($) $ in Millions	Dec. 31, 2018	Dec. 31, 2017
Schedule of Held-to-maturity Securities [Line Items]
Held-to-maturity securities, Amortized Cost	$ 46,050	$ 44,362
Held-to-maturity securities, Unrealized Gains	51	60
Held-to-maturity securities, Unrealized Losses Other-than-Temporary	0	0
Held-to-maturity securities, Unrealized Losses Other	(1,137)	(699)
Held-to-maturity securities, Fair Value	44,964	43,723
U.S. Treasury and Agencies [Member]
Schedule of Held-to-maturity Securities [Line Items]
Held-to-maturity securities, Amortized Cost	5,102	5,181
Held-to-maturity securities, Unrealized Gains	2	5
Held-to-maturity securities, Unrealized Losses Other-than-Temporary	0	0
Held-to-maturity securities, Unrealized Losses Other	(143)	(120)
Held-to-maturity securities, Fair Value	4,961	5,066
Residential Mortgage-Backed Securities [Member] | Agency [Member]
Schedule of Held-to-maturity Securities [Line Items]
Held-to-maturity securities, Amortized Cost	40,920	39,150
Held-to-maturity securities, Unrealized Gains	45	48
Held-to-maturity securities, Unrealized Losses Other-than-Temporary	0	0
Held-to-maturity securities, Unrealized Losses Other	(994)	(579)
Held-to-maturity securities, Fair Value	39,971	38,619
Asset-Backed Securities [Member]
Schedule of Held-to-maturity Securities [Line Items]
Held-to-maturity securities, Amortized Cost	5
Held-to-maturity securities, Fair Value	8
Asset-Backed Securities [Member] | Collateralized Loan Obligations [Member]
Schedule of Held-to-maturity Securities [Line Items]
Held-to-maturity securities, Unrealized Gains	1	4
Held-to-maturity securities, Unrealized Losses Other-than-Temporary	0	0
Held-to-maturity securities, Fair Value	1	4
Asset-Backed Securities [Member] | Other Asset-Backed Securities [Member]
Schedule of Held-to-maturity Securities [Line Items]
Held-to-maturity securities, Amortized Cost	5	6
Held-to-maturity securities, Unrealized Gains	2	2
Held-to-maturity securities, Unrealized Losses Other-than-Temporary	0	0
Held-to-maturity securities, Fair Value	7	8
Obligations of State and Political Subdivisions [Member]
Schedule of Held-to-maturity Securities [Line Items]
Held-to-maturity securities, Amortized Cost	6	6
Held-to-maturity securities, Unrealized Gains	1	1
Held-to-maturity securities, Unrealized Losses Other-than-Temporary	0	0
Held-to-maturity securities, Fair Value	7	7
Obligations of Foreign Governments [Member]
Schedule of Held-to-maturity Securities [Line Items]
Held-to-maturity securities, Amortized Cost	9	7
Held-to-maturity securities, Unrealized Losses Other-than-Temporary	0	0
Held-to-maturity securities, Fair Value	9	7
Other [Member]
Schedule of Held-to-maturity Securities [Line Items]
Held-to-maturity securities, Amortized Cost	8	12
Held-to-maturity securities, Unrealized Losses Other-than-Temporary	0	0
Held-to-maturity securities, Fair Value	$ 8	$ 12

Investment Securities - Inves_4

Investment Securities - Investment Securities Available-for-Sale (Detail) - USD ($) $ in Millions		Dec. 31, 2018	Dec. 31, 2017
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale securities, Amortized Cost		$ 67,381	$ 68,717
Available-for-sale securities, Unrealized Gains		174	308
Available-for-sale securities, Unrealized Losses Other-than-Temporary		0	0
Available-for-sale securities, Unrealized Losses Other		(1,440)	(888)
Available-for-sale securities, Fair Value	[1]	66,115	68,137
U.S. Treasury and Agencies [Member]
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale securities, Amortized Cost		19,604	23,586
Available-for-sale securities, Unrealized Gains		11	3
Available-for-sale securities, Unrealized Losses Other-than-Temporary		0	0
Available-for-sale securities, Unrealized Losses Other		(358)	(288)
Available-for-sale securities, Fair Value		19,257	23,301
Residential Mortgage-Backed Securities [Member] | Agency [Member]
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale securities, Amortized Cost		40,542	38,450
Available-for-sale securities, Unrealized Gains		120	152
Available-for-sale securities, Unrealized Losses Other-than-Temporary		0	0
Available-for-sale securities, Unrealized Losses Other		(910)	(571)
Available-for-sale securities, Fair Value		39,752	38,031
Commercial [Member] | Agency [Member]
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale securities, Amortized Cost		2	6
Available-for-sale securities, Unrealized Losses Other-than-Temporary		0	0
Available-for-sale securities, Fair Value		2	6
Asset-Backed Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale securities, Amortized Cost		397
Available-for-sale securities, Fair Value		403
Asset-Backed Securities [Member] | Other Asset-Backed Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale securities, Amortized Cost		397	413
Available-for-sale securities, Unrealized Gains		6	6
Available-for-sale securities, Unrealized Losses Other-than-Temporary		0	0
Available-for-sale securities, Fair Value		403	419
Obligations of State and Political Subdivisions [Member]
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale securities, Amortized Cost		6,836	6,240
Available-for-sale securities, Unrealized Gains		37	147
Available-for-sale securities, Unrealized Losses Other-than-Temporary		0	0
Available-for-sale securities, Unrealized Losses Other		(172)	(29)
Available-for-sale securities, Fair Value		6,701	6,358
Other [Member]
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale securities, Amortized Cost			22
Available-for-sale securities, Unrealized Losses Other-than-Temporary		$ 0	0
Available-for-sale securities, Fair Value			$ 22
[1]	Includes only collateral pledged by the Company where counterparties have the right to sell or pledge the collateral.

Investment Securities - Additio

Investment Securities - Additional Information (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017
Investments, Debt and Equity Securities [Abstract]
Weighted-average maturity of available-for-sale investment securities	5 years 4 months 24 days	5 years 1 month 6 days
Weighted-average yields of available-for-sale investment securities	2.57%	2.25%
Weighted-average maturity of held-to-maturity investment securities	5 years 2 months 12 days	4 years 8 months 12 days
Weighted-average yields of held-to-maturity investment securities	2.46%	2.14%
Fair value of securities pledged	$ 10,900	$ 12,800
Fair value of securities pledged as collateral where counterparty has right to repledge or resell	$ 2,100	$ 689

Investment Securities - Amount

Investment Securities - Amount of Interest Income from Taxable and Non-Taxable Investment Securities (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Interest Income, Securities, Operating, by Taxable Status [Abstract]
Taxable	$ 2,396	$ 2,043	$ 1,878
Non-taxable	220	189	200
Total interest income from investment securities	$ 2,616	$ 2,232	$ 2,078

Investment Securities - Amoun_2

Investment Securities - Amount of Gross Gains and Losses Realized through Sales of Available-for-Sale Investment Securities (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Debt Securities, Available-for-sale, Realized Gain (Loss), Excluding Other-than-temporary Impairment [Abstract]
Realized gains	$ 30	$ 75	$ 93
Realized losses		(18)	(66)
Net realized gains (losses)	30	57	27
Income tax (benefit) on net realized gains (losses)	$ 7	$ 22	$ 10

Investment Securities - Gross U

Investment Securities - Gross Unrealized Losses and Fair Value of Company's Investment Securities (Detail) $ in Millions	Dec. 31, 2018USD ($)
Continuous Gross Unrealized Losses And Fair Value [Abstract]
Fair Value Less Than 12 Months	$ 8,061
Unrealized Losses Less Than 12 Months	(84)
Fair Value 12 Months or Greater	30,219
Unrealized Losses 12 Months or Greater	(1,053)
Fair Value Total	38,280
Unrealized Losses Total	(1,137)
Fair Value Less Than 12 Months	9,012
Unrealized Losses Less Than 12 Months	(105)
Fair Value 12 Months or Greater	42,885
Unrealized Losses 12 Months or Greater	(1,335)
Fair Value Total	51,897
Unrealized Losses Total	(1,440)
U.S. Treasury and Agencies [Member]
Continuous Gross Unrealized Losses And Fair Value [Abstract]
Fair Value Less Than 12 Months	182
Unrealized Losses Less Than 12 Months	(1)
Fair Value 12 Months or Greater	4,639
Unrealized Losses 12 Months or Greater	(142)
Fair Value Total	4,821
Unrealized Losses Total	(143)
Fair Value Less Than 12 Months	118
Fair Value 12 Months or Greater	17,828
Unrealized Losses 12 Months or Greater	(358)
Fair Value Total	17,946
Unrealized Losses Total	(358)
Residential Mortgage-Backed Securities [Member] | Agency [Member]
Continuous Gross Unrealized Losses And Fair Value [Abstract]
Fair Value Less Than 12 Months	7,878
Unrealized Losses Less Than 12 Months	(83)
Fair Value 12 Months or Greater	25,570
Unrealized Losses 12 Months or Greater	(911)
Fair Value Total	33,448
Unrealized Losses Total	(994)
Fair Value Less Than 12 Months	6,269
Unrealized Losses Less Than 12 Months	(45)
Fair Value 12 Months or Greater	23,694
Unrealized Losses 12 Months or Greater	(865)
Fair Value Total	29,963
Unrealized Losses Total	(910)
Commercial [Member] | Agency [Member]
Continuous Gross Unrealized Losses And Fair Value [Abstract]
Fair Value Less Than 12 Months	2
Fair Value Total	2
Obligations of State and Political Subdivisions [Member]
Continuous Gross Unrealized Losses And Fair Value [Abstract]
Fair Value Less Than 12 Months	2,623
Unrealized Losses Less Than 12 Months	(60)
Fair Value 12 Months or Greater	1,363
Unrealized Losses 12 Months or Greater	(112)
Fair Value Total	3,986
Unrealized Losses Total	(172)
Asset-Backed Securities [Member] | Other Asset-Backed Securities [Member]
Continuous Gross Unrealized Losses And Fair Value [Abstract]
Fair Value 12 Months or Greater	2
Fair Value Total	2
Obligations of Foreign Governments [Member]
Continuous Gross Unrealized Losses And Fair Value [Abstract]
Fair Value Less Than 12 Months	1
Fair Value Total	1
Other [Member]
Continuous Gross Unrealized Losses And Fair Value [Abstract]
Fair Value 12 Months or Greater	8
Fair Value Total	$ 8

Loans and Allowance for Credi_5

Loans and Allowance for Credit Losses - Composition of Loan Portfolio (Detail) - USD ($) $ in Millions	Dec. 31, 2018	Dec. 31, 2017
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	$ 286,810
Total loans	286,810	$ 280,432
Commercial [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	96,849	91,958
Commercial [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	102,444	97,561
Commercial Real Estate [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	39,539	40,463
Residential Mortgages [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	65,034	59,783
Other Retail [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	56,430	57,324
Lease Financing [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	5,595	5,603
Commercial Mortgages [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	28,596	29,367
Construction and Development [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	10,943	11,096
Residential Mortgages [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	53,034	46,685
Home Equity Loans, First Liens [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	12,000	13,098
Credit Card [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	23,363	22,180
Retail Leasing [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	8,546	7,988
Home Equity and Second Mortgages [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	16,122	16,327
Revolving Credit [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	3,088	3,183
Installment [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	9,676	8,989
Automobile [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	18,719	18,934
Student [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	$ 279	1,903
Covered Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans		$ 3,121

Loans and Allowance for Credi_6

Loans and Allowance for Credit Losses - Additional Information (Detail) $ in Millions	3 Months Ended	12 Months Ended
	Dec. 31, 2018USD ($)SecurityLoan	Dec. 31, 2018USD ($)MortgageLoan	Dec. 31, 2017USD ($)
Loans and Allowance for Credit Losses [Line Items]
Loans pledged at the Federal Home Loan Bank	$ 88,700	$ 88,700	$ 83,300
Loans pledged at the Federal Reserve Bank	70,100	70,100	68,000
Unearned interest and deferred fees and costs on originated loans	872	872	830
Foreclosed residential real estate property included in other real estate owned	106	106	156
Foreclosed residential real estate related to mortgage loans whose payments are insured by the Federal Housing Administration or guaranteed by the United States Department of Veterans Affairs	235	235	267
Residential mortgage loans secured by residential real estate in process of foreclosure	1,500	$ 1,500	1,700
Number of residential mortgage loans, home equity and second mortgage loans, and GNMA loans where trial period was unsuccessful and no longer eligible for a permanent modification | MortgageLoan		1,034
Outstanding balance of residential mortgage loans, home equity and second mortgage loans, and GNMA loans where trial period was unsuccessful and no longer eligible for a permanent modification		$ 98
Government National Mortgage Association [Member]
Loans and Allowance for Credit Losses [Line Items]
Residential mortgage loans secured by residential real estate in process of foreclosure purchased from GNMA mortgage pools whose repayments are insured by the Federal Housing Administration or guaranteed by the United States Department of Veterans Affairs	$ 1,200	$ 1,200	$ 1,300
Home Equity and Second Mortgages [Member]
Loans and Allowance for Credit Losses [Line Items]
Number of loans in trial period | SecurityLoan	34
Outstanding balance of loans in trial period	$ 2
Estimated post-modification balance of loans in trial period	$ 3
Residential Mortgages [Member]
Loans and Allowance for Credit Losses [Line Items]
Number of loans in trial period | SecurityLoan	51
Outstanding balance of loans in trial period	$ 10
Estimated post-modification balance of loans in trial period	$ 10
Government National Mortgage Association [Member]
Loans and Allowance for Credit Losses [Line Items]
Number of loans in trial period | SecurityLoan	1,022
Outstanding balance of loans in trial period	$ 133
Estimated post-modification balance of loans in trial period	$ 133

Loans and Allowance for Credi_7

Loans and Allowance for Credit Losses - Activity in Allowance for Credit Losses by Portfolio Class (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Financing Receivable, Allowance for Credit Losses [Line Items]
Balance at beginning of period	$ 4,417	$ 4,357	$ 4,306
Provision for credit losses	1,379	1,390	1,324
Loans charged-off	1,760	1,751	1,615
Less recoveries of loans charged-off	(406)	(421)	(346)
Net loans charged-off	1,354	1,330	1,269
Other changes	(1)		(4)
Balance at end of period	4,441	4,417	4,357
Commercial [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Balance at beginning of period	1,372	1,450	1,287
Provision for credit losses	333	186	488
Loans charged-off	350	414	417
Less recoveries of loans charged-off	(99)	(150)	(92)
Net loans charged-off	251	264	325
Balance at end of period	1,454	1,372	1,450
Commercial Real Estate [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Balance at beginning of period	831	812	724
Provision for credit losses	(50)	19	75
Loans charged-off	9	30	22
Less recoveries of loans charged-off	(28)	(30)	(35)
Net loans charged-off	(19)		(13)
Balance at end of period	800	831	812
Residential Mortgages [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Balance at beginning of period	449	510	631
Provision for credit losses	23	(24)	(61)
Loans charged-off	48	65	85
Less recoveries of loans charged-off	(31)	(28)	(25)
Net loans charged-off	17	37	60
Balance at end of period	455	449	510
Other Retail [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Balance at beginning of period	678	617	743
Provision for credit losses	211	304	95
Loans charged-off	383	355	332
Less recoveries of loans charged-off	(124)	(112)	(111)
Net loans charged-off	259	243	221
Balance at end of period	630	678	617
Credit Card [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Balance at beginning of period	1,056	934	883
Provision for credit losses	892	908	728
Loans charged-off	970	887	759
Less recoveries of loans charged-off	(124)	(101)	(83)
Net loans charged-off	846	786	676
Other changes			(1)
Balance at end of period	1,102	1,056	934
Covered Loans [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Balance at beginning of period	31	34	38
Provision for credit losses	(30)	(3)	(1)
Other changes	$ (1)		(3)
Balance at end of period		$ 31	$ 34

Loans and Allowance for Credi_8

Loans and Allowance for Credit Losses - Additional Detail of Allowance for Credit Losses and Related Loan Balances by Portfolio Class (Detail) - USD ($) $ in Millions	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Allowance Balance at End of Period
Loans individually evaluated for impairment	$ 24	$ 27
TDRs collectively evaluated for impairment	225	237
Other loans collectively evaluated for impairment	4,176	4,118
Loans acquired with deteriorated credit quality	16	35
Total allowance for credit losses	4,441	4,417	$ 4,357	$ 4,306
Loan Balance at End of Period
Loans individually evaluated for impairment	348	408
TDRs collectively evaluated for impairment	3,960	4,269
Other loans collectively evaluated for impairment	282,158	273,669
Loans acquired with deteriorated credit quality	344	2,086
Total loans	286,810
Total loans	286,810	280,432
Commercial [Member]
Allowance Balance at End of Period
Loans individually evaluated for impairment	16	23
TDRs collectively evaluated for impairment	15	14
Other loans collectively evaluated for impairment	1,423	1,335
Total allowance for credit losses	1,454	1,372	1,450	1,287
Loan Balance at End of Period
Loans individually evaluated for impairment	262	337
TDRs collectively evaluated for impairment	151	148
Other loans collectively evaluated for impairment	102,031	97,076
Total loans	102,444	97,561
Commercial Real Estate [Member]
Allowance Balance at End of Period
Loans individually evaluated for impairment	8	4
TDRs collectively evaluated for impairment	3	4
Other loans collectively evaluated for impairment	788	818
Loans acquired with deteriorated credit quality	1	5
Total allowance for credit losses	800	831	812	724
Loan Balance at End of Period
Loans individually evaluated for impairment	86	71
TDRs collectively evaluated for impairment	129	145
Other loans collectively evaluated for impairment	39,297	40,174
Loans acquired with deteriorated credit quality	27	73
Total loans	39,539	40,463
Residential Mortgages [Member]
Allowance Balance at End of Period
TDRs collectively evaluated for impairment	126	139
Other loans collectively evaluated for impairment	314	310
Loans acquired with deteriorated credit quality	15
Total allowance for credit losses	455	449	510	631
Loan Balance at End of Period
TDRs collectively evaluated for impairment	3,252	3,524
Other loans collectively evaluated for impairment	61,465	56,258
Loans acquired with deteriorated credit quality	317	1
Total loans	65,034	59,783
Other Retail [Member]
Allowance Balance at End of Period
TDRs collectively evaluated for impairment	12	19
Other loans collectively evaluated for impairment	618	659
Total allowance for credit losses	630	678	617	743
Loan Balance at End of Period
TDRs collectively evaluated for impairment	183	186
Other loans collectively evaluated for impairment	56,247	57,138
Total loans	56,430	57,324
Credit Card [Member]
Allowance Balance at End of Period
TDRs collectively evaluated for impairment	69	60
Other loans collectively evaluated for impairment	1,033	996
Total allowance for credit losses	1,102	1,056	934	883
Loan Balance at End of Period
TDRs collectively evaluated for impairment	245	230
Other loans collectively evaluated for impairment	23,118	21,950
Total loans	$ 23,363	22,180
Covered Loans [Member]
Allowance Balance at End of Period
TDRs collectively evaluated for impairment		1
Loans acquired with deteriorated credit quality		30
Total allowance for credit losses		31	$ 34	$ 38
Loan Balance at End of Period
TDRs collectively evaluated for impairment		36
Other loans collectively evaluated for impairment		1,073
Loans acquired with deteriorated credit quality		2,012
Total loans		$ 3,121

Loans and Allowance for Credi_9

Loans and Allowance for Credit Losses - Summary of Loans by Portfolio Class, Including Delinquency Status of those that Continue to Accrue Interest and are Nonperforming (Detail) - USD ($) $ in Millions	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current	$ 284,109	$ 277,492
Accruing 30-89 Days Past Due	1,300	1,212
Accruing 90 Days or More Past Due	584	720	$ 764	$ 831	$ 945
Nonperforming	817	1,008	1,368	1,192	1,466
Total loans	286,810
Total loans	286,810	280,432
Commercial [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current	101,844	97,005
Accruing 30-89 Days Past Due	322	250
Accruing 90 Days or More Past Due	69	57
Nonperforming	209	249	483	174	112
Total loans	102,444	97,561
Commercial Real Estate [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current	39,354	40,279
Accruing 30-89 Days Past Due	70	36
Accruing 90 Days or More Past Due		6
Nonperforming	115	142	124	127	259
Total loans	39,539	40,463
Residential Mortgages [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current	64,443	59,013
Accruing 30-89 Days Past Due	181	198
Accruing 90 Days or More Past Due	114	130
Nonperforming	296	442	595	712	864
Total loans	65,034	59,783
Other Retail [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current	55,722	56,685
Accruing 30-89 Days Past Due	403	376
Accruing 90 Days or More Past Due	108	95
Nonperforming	197	168	157	162	187
Total loans	56,430	57,324
Credit Card [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current	22,746	21,593
Accruing 30-89 Days Past Due	324	302
Accruing 90 Days or More Past Due	293	284
Nonperforming		1	3	9	30
Total loans	$ 23,363	22,180
Covered Loans [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current		2,917
Accruing 30-89 Days Past Due		50
Accruing 90 Days or More Past Due		148
Nonperforming		6	$ 6	$ 8	$ 14
Total loans		$ 3,121

Loans and Allowance for Cred_10

Loans and Allowance for Credit Losses - Summary of Loans by Portfolio Class, Including Delinquency Status of those that Continue to Accrue Interest and are Nonperforming (Parenthetical) (Detail) - Government National Mortgage Association [Member] - USD ($) $ in Millions	Dec. 31, 2018	Dec. 31, 2017
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans 30-89 days past due purchased from Government National Mortgage Association mortgage pools whose payments are insured by the Federal Housing Administration or guaranteed by the United States Department of Veterans Affairs, were classified as current	$ 430	$ 385
Loans 90 days or more past due purchased from Government National Mortgage Association mortgage pools whose payments are insured by the Federal Housing Administration or guaranteed by the United States Department of Veterans Affairs, were classified as current	$ 1,700	$ 1,900

Loans and Allowance for Cred_11

Loans and Allowance for Credit Losses - Summary of Loans by Portfolio Class and Company's Internal Credit Quality Rating (Detail) - USD ($) $ in Millions	Dec. 31, 2018	Dec. 31, 2017
Financing Receivable, Recorded Investment [Line Items]
Total loans	$ 286,810
Total loans	286,810	$ 280,432
Total outstanding commitments	606,656	591,201
Pass [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	282,228
Total loans		275,576
Total outstanding commitments	600,407	584,072
Special Mention Criticized [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	1,740
Total loans		1,800
Total outstanding commitments	2,801	3,142
Classified Criticized [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	2,842
Total loans		3,056
Total outstanding commitments	3,448	3,987
Total Criticized [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	4,582
Total loans		4,856
Total outstanding commitments	6,249	7,129
Commercial [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	102,444	97,561
Commercial [Member] | Pass [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	100,014	95,297
Commercial [Member] | Special Mention Criticized [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	1,149	1,130
Commercial [Member] | Classified Criticized [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	1,281	1,134
Commercial [Member] | Total Criticized [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	2,430	2,264
Commercial Real Estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	39,539	40,463
Commercial Real Estate [Member] | Pass [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	38,473	39,162
Commercial Real Estate [Member] | Special Mention Criticized [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	584	648
Commercial Real Estate [Member] | Classified Criticized [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	482	653
Commercial Real Estate [Member] | Total Criticized [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	1,066	1,301
Residential Mortgages [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	65,034	59,783
Residential Mortgages [Member] | Pass [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	64,570	59,141
Residential Mortgages [Member] | Special Mention Criticized [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	1	16
Residential Mortgages [Member] | Classified Criticized [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	463	626
Residential Mortgages [Member] | Total Criticized [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	464	642
Other Retail [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	56,430	57,324
Other Retail [Member] | Pass [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	56,101	57,009
Other Retail [Member] | Special Mention Criticized [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	6	6
Other Retail [Member] | Classified Criticized [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	323	309
Other Retail [Member] | Total Criticized [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	329	315
Credit Card [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	23,363	22,180
Credit Card [Member] | Pass [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	23,070	21,895
Credit Card [Member] | Classified Criticized [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	293	285
Credit Card [Member] | Total Criticized [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	$ 293	285
Covered Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans		3,121
Covered Loans [Member] | Pass [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans		3,072
Covered Loans [Member] | Classified Criticized [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans		49
Covered Loans [Member] | Total Criticized [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans		$ 49

Loans and Allowance for Cred_12

Loans and Allowance for Credit Losses - Summary of Loans by Portfolio Class and Company's Internal Credit Quality Rating (Parenthetical) (Detail) - Government National Mortgage Association [Member] - USD ($) $ in Billions	Dec. 31, 2018	Dec. 31, 2017
Financing Receivable, Recorded Investment [Line Items]
Restructured GNMA loans whose repayments are insured by the Federal Housing Administration or guaranteed by the United States Department of Veterans Affairs, were classified with a pass rating	$ 1.7	$ 1.9
GNMA loans 90 days or more past due whose repayments are insured by the Federal Housing Administration or guaranteed by the United States Department of Veterans Affairs, were classified with a pass rating	$ 1.6	$ 1.7

Loans and Allowance for Cred_13

Loans and Allowance for Credit Losses - Summary of Impaired Loans, which Include Nonaccrual and TDR Loans, by Portfolio Class (Detail) - USD ($) $ in Millions	Dec. 31, 2018	Dec. 31, 2017
Financing Receivable, Impaired [Line Items]
Period-end Recorded Investment	$ 4,674	$ 5,027
Unpaid Principal Balance	5,698	6,205
Valuation Allowance	254	279
Commitments to Lend Additional Funds	113	204
Commercial [Member]
Financing Receivable, Impaired [Line Items]
Period-end Recorded Investment	467	550
Unpaid Principal Balance	1,006	915
Valuation Allowance	32	44
Commitments to Lend Additional Funds	106	199
Commercial Real Estate [Member]
Financing Receivable, Impaired [Line Items]
Period-end Recorded Investment	279	280
Unpaid Principal Balance	511	596
Valuation Allowance	12	11
Commitments to Lend Additional Funds	2
Residential Mortgages [Member]
Financing Receivable, Impaired [Line Items]
Period-end Recorded Investment	1,709	1,946
Unpaid Principal Balance	1,879	2,339
Valuation Allowance	86	116
Commitments to Lend Additional Funds		1
Other Retail [Member]
Financing Receivable, Impaired [Line Items]
Period-end Recorded Investment	335	302
Unpaid Principal Balance	418	400
Valuation Allowance	14	22
Commitments to Lend Additional Funds	5	4
Credit Card [Member]
Financing Receivable, Impaired [Line Items]
Period-end Recorded Investment	245	230
Unpaid Principal Balance	245	230
Valuation Allowance	69	60
Total Loans, Excluding Loans Purchased from GNMA Mortgage Pools [Member]
Financing Receivable, Impaired [Line Items]
Period-end Recorded Investment	3,035	3,346
Unpaid Principal Balance	4,059	4,524
Valuation Allowance	213	254
Commitments to Lend Additional Funds	113	204
Covered Loans [Member]
Financing Receivable, Impaired [Line Items]
Period-end Recorded Investment		38
Unpaid Principal Balance		44
Valuation Allowance		1
Government National Mortgage Association [Member]
Financing Receivable, Impaired [Line Items]
Period-end Recorded Investment	1,639	1,681
Unpaid Principal Balance	1,639	1,681
Valuation Allowance	$ 41	$ 25

Loans and Allowance for Cred_14

Loans and Allowance for Credit Losses - Summary of Impaired Loans, which Include Nonaccrual and TDR Loans, by Portfolio Class (Parenthetical) (Detail) $ in Millions	12 Months Ended
	Dec. 31, 2018USD ($)
Loan and Lease Receivables, Impaired [Abstract]
Interest income recognized on impaired loans	$ 164
Interest income that would have been recognized on impaired loans at original contractual loan terms	$ 226

Loans and Allowance for Cred_15

Loans and Allowance for Credit Losses - Impaired Loans Average Recorded Investment and Interest Income Recognized (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Financing Receivable, Impaired [Line Items]
Average Recorded Investment	$ 4,797	$ 5,316	$ 5,710
Interest Income Recognized	164	204	237
Commercial [Member]
Financing Receivable, Impaired [Line Items]
Average Recorded Investment	497	683	799
Interest Income Recognized	8	7	9
Commercial Real Estate [Member]
Financing Receivable, Impaired [Line Items]
Average Recorded Investment	273	273	324
Interest Income Recognized	13	11	15
Residential Mortgages [Member]
Financing Receivable, Impaired [Line Items]
Average Recorded Investment	1,817	2,135	2,422
Interest Income Recognized	76	103	124
Other Retail [Member]
Financing Receivable, Impaired [Line Items]
Average Recorded Investment	309	287	293
Interest Income Recognized	16	14	13
Credit Card [Member]
Financing Receivable, Impaired [Line Items]
Average Recorded Investment	236	229	214
Interest Income Recognized	3	3	4
Covered Loans [Member]
Financing Receivable, Impaired [Line Items]
Average Recorded Investment	25	37	38
Interest Income Recognized	1	1	1
Total Loans, Excluding Loans Purchased from GNMA Mortgage Pools [Member]
Financing Receivable, Impaired [Line Items]
Average Recorded Investment	3,157	3,644	4,090
Interest Income Recognized	117	139	166
Government National Mortgage Association [Member]
Financing Receivable, Impaired [Line Items]
Average Recorded Investment	1,640	1,672	1,620
Interest Income Recognized	$ 47	$ 65	$ 71

Loans and Allowance for Cred_16

Loans and Allowance for Credit Losses - Summary of Loans Modified as TDRs (Detail) $ in Millions	12 Months Ended
	Dec. 31, 2018USD ($)SecurityLoan	Dec. 31, 2017USD ($)SecurityLoan	Dec. 31, 2016USD ($)SecurityLoan
Financing Receivable, Modifications [Line Items]
Number of Loans | SecurityLoan	45,528	47,984	48,958
Pre-Modification Outstanding Loan Balance	$ 1,626	$ 1,675	$ 2,743
Post-Modification Outstanding Loan Balance	$ 1,579	$ 1,593	$ 2,600
Commercial [Member]
Financing Receivable, Modifications [Line Items]
Number of Loans | SecurityLoan	2,824	2,758	2,352
Pre-Modification Outstanding Loan Balance	$ 336	$ 380	$ 844
Post-Modification Outstanding Loan Balance	$ 311	$ 328	$ 699
Commercial Real Estate [Member]
Financing Receivable, Modifications [Line Items]
Number of Loans | SecurityLoan	127	128	102
Pre-Modification Outstanding Loan Balance	$ 168	$ 82	$ 259
Post-Modification Outstanding Loan Balance	$ 169	$ 78	$ 256
Residential Mortgages [Member]
Financing Receivable, Modifications [Line Items]
Number of Loans | SecurityLoan	526	800	1,576
Pre-Modification Outstanding Loan Balance	$ 73	$ 90	$ 168
Post-Modification Outstanding Loan Balance	$ 69	$ 88	$ 178
Other Retail [Member]
Financing Receivable, Modifications [Line Items]
Number of Loans | SecurityLoan	2,462	3,881	2,235
Pre-Modification Outstanding Loan Balance	$ 58	$ 79	$ 41
Post-Modification Outstanding Loan Balance	$ 55	$ 68	$ 40
Credit Card [Member]
Financing Receivable, Modifications [Line Items]
Number of Loans | SecurityLoan	33,318	33,615	31,394
Pre-Modification Outstanding Loan Balance	$ 169	$ 161	$ 151
Post-Modification Outstanding Loan Balance	$ 171	$ 162	$ 153
Covered Loans [Member]
Financing Receivable, Modifications [Line Items]
Number of Loans | SecurityLoan	3	11	39
Pre-Modification Outstanding Loan Balance	$ 1	$ 2	$ 6
Post-Modification Outstanding Loan Balance	$ 1	$ 2	$ 7
Total Loans, Excluding Loans Purchased from GNMA Mortgage Pools [Member]
Financing Receivable, Modifications [Line Items]
Number of Loans | SecurityLoan	39,260	41,193	37,698
Pre-Modification Outstanding Loan Balance	$ 805	$ 794	$ 1,469
Post-Modification Outstanding Loan Balance	$ 776	$ 726	$ 1,333
Government National Mortgage Association [Member]
Financing Receivable, Modifications [Line Items]
Number of Loans | SecurityLoan	6,268	6,791	11,260
Pre-Modification Outstanding Loan Balance	$ 821	$ 881	$ 1,274
Post-Modification Outstanding Loan Balance	$ 803	$ 867	$ 1,267

Loans and Allowance for Cred_17

Loans and Allowance for Credit Losses - Summary of Loans Modified as TDRs in the Past Twelve Months that have Subsequently Defaulted (Detail) $ in Millions	12 Months Ended
	Dec. 31, 2018USD ($)SecurityLoan	Dec. 31, 2017USD ($)SecurityLoan	Dec. 31, 2016USD ($)SecurityLoan
Financing Receivable, Modifications [Line Items]
Number of Loans | SecurityLoan	10,860	11,294	8,157
Amount Defaulted | $	$ 331	$ 321	$ 118
Commercial [Member]
Financing Receivable, Modifications [Line Items]
Number of Loans | SecurityLoan	836	724	531
Amount Defaulted | $	$ 71	$ 53	$ 24
Commercial Real Estate [Member]
Financing Receivable, Modifications [Line Items]
Number of Loans | SecurityLoan	39	36	27
Amount Defaulted | $	$ 15	$ 9	$ 12
Residential Mortgages [Member]
Financing Receivable, Modifications [Line Items]
Number of Loans | SecurityLoan	191	374	132
Amount Defaulted | $	$ 18	$ 41	$ 17
Other Retail [Member]
Financing Receivable, Modifications [Line Items]
Number of Loans | SecurityLoan	334	415	434
Amount Defaulted | $	$ 5	$ 5	$ 9
Credit Card [Member]
Financing Receivable, Modifications [Line Items]
Number of Loans | SecurityLoan	8,012	8,372	6,827
Amount Defaulted | $	$ 35	$ 36	$ 30
Covered Loans [Member]
Financing Receivable, Modifications [Line Items]
Number of Loans | SecurityLoan	1	4	4
Amount Defaulted | $			$ 1
Total Loans, Excluding Loans Purchased from GNMA Mortgage Pools [Member]
Financing Receivable, Modifications [Line Items]
Number of Loans | SecurityLoan	9,413	9,925	7,955
Amount Defaulted | $	$ 144	$ 144	$ 93
Government National Mortgage Association [Member]
Financing Receivable, Modifications [Line Items]
Number of Loans | SecurityLoan	1,447	1,369	202
Amount Defaulted | $	$ 187	$ 177	$ 25

Leases - Components of Net Inve

Leases - Components of Net Investment in Sales - Type and Direct Financing Leases (Detail) - USD ($) $ in Millions	Dec. 31, 2018	Dec. 31, 2017
Capital Leases, Net Investment in Direct Financing and Sales Type Leases [Abstract]
Aggregate future minimum lease payments to be received	$ 13,222	$ 12,709
Unguaranteed residual values accruing to the lessor's benefit	1,877	1,731
Unearned income	(1,272)	(1,205)
Initial direct costs	257	274
Total net investment in sales-type and direct financing leases	$ 14,084	$ 13,509

Leases - Components of Net In_2

Leases - Components of Net Investment in Sales - Type and Direct Financing Leases (Parenthetical) (Detail) - USD ($) $ in Millions	Dec. 31, 2018	Dec. 31, 2017
Capital Leases, Net Investment in Direct Financing and Sales Type Leases [Abstract]
Accumulated allowance for uncollectible minimum lease payments	$ 90	$ 94

Leases - Minimum Future Lease P

Leases - Minimum Future Lease Payments to be Received from Sales - Type and Direct Financing Leases (Detail) $ in Millions	Dec. 31, 2018USD ($)
Capital Leases, Future Minimum Payments Receivable, Fiscal Year Maturity [Abstract]
2,019	$ 4,264
2,020	4,146
2,021	2,777
2,022	1,177
2,023	335
Thereafter	$ 523

Accounting for Transfers and _3

Accounting for Transfers and Servicing of Financial Assets and Variable Interest Entities - Additional Information (Detail) - USD ($)	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Minimum [Member]
Variable Interest Entity [Line Items]
Aggregate amount of investments in unconsolidated VIEs	$ 1,000,000	$ 1,000,000
Maximum [Member]
Variable Interest Entity [Line Items]
Aggregate amount of investments in unconsolidated VIEs	95,000,000	56,000,000
Financial Support Waived Fees [Member]
Variable Interest Entity [Line Items]
Financial or other support to money market funds	25,000,000	23,000,000	$ 45,000,000
Private Investment Funds and Partnerships [Member]
Variable Interest Entity [Line Items]
Investment carrying amount	27,000,000	30,000,000
Maximum exposure to loss	52,000,000	51,000,000
Community Development and Tax Advantaged Investments [Member]
Variable Interest Entity [Line Items]
Federal and state income tax credits recognized in tax expense	689,000,000	711,000,000	698,000,000
Expense related to investments	604,000,000	741,000,000	672,000,000
Investment tax credits	639,000,000	1,500,000,000	1,400,000,000
Expenses related to investments recognized in tax expense	275,000,000	317,000,000	$ 251,000,000
Investment carrying amount	5,823,000,000	5,660,000,000
Maximum exposure to loss	12,360,000,000	12,120,000,000
Assets related to consolidated VIEs	3,900,000,000	3,500,000,000
Liabilities related to consolidated VIEs	2,700,000,000	2,500,000,000
Conduit [Member]
Variable Interest Entity [Line Items]
Assets related to consolidated VIEs	14,000,000	18,000,000
Tender Option Bond Program [Member]
Variable Interest Entity [Line Items]
Assets related to consolidated VIEs	2,400,000,000	2,500,000,000
Liabilities related to consolidated VIEs	$ 2,300,000,000	$ 2,300,000,000

Accounting for Transfers and _4

Accounting for Transfers and Servicing of Financial Assets and Variable Interest Entities - Summary of Investments in Community Development and Tax-advantaged VIEs (Detail) - Community Development and Tax Advantaged Investments [Member] - USD ($) $ in Millions	Dec. 31, 2018	Dec. 31, 2017
Variable Interest Entity [Line Items]
Investment carrying amount	$ 5,823	$ 5,660
Unfunded capital and other commitments	2,778	2,770
Maximum exposure to loss	$ 12,360	$ 12,120

Premises and Equipment - Premis

Premises and Equipment - Premises and Equipment (Detail) - USD ($) $ in Millions	Dec. 31, 2018	Dec. 31, 2017
Property, Plant and Equipment [Line Items]
Gross Premises and Equipment	$ 7,247	$ 7,061
Less accumulated depreciation and amortization	(4,790)	(4,629)
Total Premises and Equipment	2,457	2,432
Land [Member]
Property, Plant and Equipment [Line Items]
Gross Premises and Equipment	515	520
Buildings and Improvements [Member]
Property, Plant and Equipment [Line Items]
Gross Premises and Equipment	3,481	3,425
Furniture, Fixtures and Equipment [Member]
Property, Plant and Equipment [Line Items]
Gross Premises and Equipment	3,110	2,951
Capitalized Building and Equipment Leases [Member]
Property, Plant and Equipment [Line Items]
Gross Premises and Equipment	121	130
Construction in Progress [Member]
Property, Plant and Equipment [Line Items]
Gross Premises and Equipment	$ 20	$ 35

Mortgage Servicing Rights - Add

Mortgage Servicing Rights - Additional Information (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Transfers and Servicing of Financial Assets [Abstract]
Residential mortgage loans serviced for others including subserviced mortgages with no corresponding MSRs asset	$ 231,500	$ 234,700
Gain (Loss) on fair value changes of MSRs due to changes in valuation assumptions and derivatives used to economically hedge MSRs	47	15	$ 7
Loan servicing and ancillary fees	$ 746	$ 746	$ 750

Mortgage Servicing Rights - Cha

Mortgage Servicing Rights - Changes in Fair Value of Capitalized MSRs (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Transfers and Servicing of Financial Assets [Abstract]
Balance at beginning of period	$ 2,645	$ 2,591	$ 2,512
Rights purchased	8	13	43
Rights capitalized	397	445	524
Rights sold	(27)
Changes in fair value of MSRs
Due to fluctuations in market interest rates	98	(23)	(55)
Due to revised assumptions or models	56	18	19
Other changes in fair value	(386)	(399)	(452)
Balance at end of period	$ 2,791	$ 2,645	$ 2,591

Mortgage Servicing Rights - Sen

Mortgage Servicing Rights - Sensitivity to Changes in Interest Rates of the Fair Value of MSR Portfolio and Related Derivative Instruments (Detail) - USD ($) $ in Millions	Dec. 31, 2018	Dec. 31, 2017
Down Scenario [Member] | Mortgage Servicing Rights [Member]
Sensitivity Analysis of Fair Value of Interests Continued to be Held by Transferor, Servicing Assets or Liabilities, Impact of Adverse Change in Assumption [Line Items]
Net fair value 100 basis points	$ (501)	$ (520)
Net fair value 50 basis points	(223)	(231)
Net fair value 25 basis points	(105)	(109)
Down Scenario [Member] | Derivative [Member]
Sensitivity Analysis of Fair Value of Interests Continued to be Held by Transferor, Servicing Assets or Liabilities, Impact of Adverse Change in Assumption [Line Items]
Net fair value 100 basis points	455	453
Net fair value 50 basis points	215	216
Net fair value 25 basis points	104	105
Down Scenario [Member] | Net Sensitivity [Member]
Sensitivity Analysis of Fair Value of Interests Continued to be Held by Transferor, Servicing Assets or Liabilities, Impact of Adverse Change in Assumption [Line Items]
Net fair value 100 basis points	(46)	(67)
Net fair value 50 basis points	(8)	(15)
Net fair value 25 basis points	(1)	(4)
Up Scenario [Member] | Mortgage Servicing Rights [Member]
Sensitivity Analysis of Fair Value of Interests Continued to be Held by Transferor, Servicing Assets or Liabilities, Impact of Adverse Change in Assumption [Line Items]
Net fair value 100 basis points	295	302
Net fair value 50 basis points	171	177
Net fair value 25 basis points	92	95
Up Scenario [Member] | Derivative [Member]
Sensitivity Analysis of Fair Value of Interests Continued to be Held by Transferor, Servicing Assets or Liabilities, Impact of Adverse Change in Assumption [Line Items]
Net fair value 100 basis points	(321)	(336)
Net fair value 50 basis points	(177)	(184)
Net fair value 25 basis points	(94)	(96)
Up Scenario [Member] | Net Sensitivity [Member]
Sensitivity Analysis of Fair Value of Interests Continued to be Held by Transferor, Servicing Assets or Liabilities, Impact of Adverse Change in Assumption [Line Items]
Net fair value 100 basis points	(26)	(34)
Net fair value 50 basis points	(6)	(7)
Net fair value 25 basis points	$ (2)	$ (1)

Mortgage Servicing Rights - MSR

Mortgage Servicing Rights - MSRs and Related Characteristics by Portfolio (Detail) $ in Millions	12 Months Ended
	Dec. 31, 2018USD ($)BasisPointMultiple	Dec. 31, 2017USD ($)BasisPointMultiple	Dec. 31, 2016USD ($)	Dec. 31, 2015USD ($)
Servicing Assets at Fair Value [Line Items]
Fair value	$ 2,791	$ 2,645	$ 2,591	$ 2,512
Mortgage Servicing Rights [Member]
Servicing Assets at Fair Value [Line Items]
Servicing portfolio	229,284	232,846
Fair value	$ 2,791	$ 2,645
Value (bps) | BasisPoint	122	114
Weighted-average servicing fees (bps) | BasisPoint	30	29
Multiple (value/servicing fees) | Multiple	4.11	3.86
Weighted-average note rate	4.15%	4.08%
Weighted-average age (in years)	4 years 3 months 18 days	4 years
Weighted-average expected prepayment (constant prepayment rate)	9.50%	10.00%
Weighted-average expected life (in years)	7 years 2 months 12 days	7 years
Weighted-average option adjusted spread	7.60%	8.00%
HFA [Member] | Mortgage Servicing Rights [Member]
Servicing Assets at Fair Value [Line Items]
Servicing portfolio	$ 44,384	$ 40,737
Fair value	$ 526	$ 450
Value (bps) | BasisPoint	119	110
Weighted-average servicing fees (bps) | BasisPoint	34	35
Multiple (value/servicing fees) | Multiple	3.45	3.17
Weighted-average note rate	4.59%	4.43%
Weighted-average age (in years)	3 years 3 months 18 days	3 years
Weighted-average expected prepayment (constant prepayment rate)	9.80%	9.80%
Weighted-average expected life (in years)	7 years 8 months 12 days	7 years 8 months 12 days
Weighted-average option adjusted spread	8.60%	9.90%
Government Insured [Member] | Mortgage Servicing Rights [Member]
Servicing Assets at Fair Value [Line Items]
Servicing portfolio	$ 35,990	$ 36,756
Fair value	$ 465	$ 428
Value (bps) | BasisPoint	129	116
Weighted-average servicing fees (bps) | BasisPoint	36	34
Multiple (value/servicing fees) | Multiple	3.63	3.38
Weighted-average note rate	3.97%	3.92%
Weighted-average age (in years)	4 years 8 months 12 days	4 years 3 months 18 days
Weighted-average expected prepayment (constant prepayment rate)	11.00%	11.60%
Weighted-average expected life (in years)	6 years 8 months 12 days	6 years 6 months
Weighted-average option adjusted spread	8.30%	9.20%
Conventional [Member] | Mortgage Servicing Rights [Member]
Servicing Assets at Fair Value [Line Items]
Servicing portfolio	$ 148,910	$ 155,353
Fair value	$ 1,800	$ 1,767
Value (bps) | BasisPoint	121	114
Weighted-average servicing fees (bps) | BasisPoint	27	27
Multiple (value/servicing fees) | Multiple	4.52	4.24
Weighted-average note rate	4.06%	4.02%
Weighted-average age (in years)	4 years 6 months	4 years 2 months 12 days
Weighted-average expected prepayment (constant prepayment rate)	9.10%	9.70%
Weighted-average expected life (in years)	7 years 1 month 6 days	6 years 10 months 24 days
Weighted-average option adjusted spread	7.20%	7.20%

Intangible Assets - Intangible

Intangible Assets - Intangible Assets (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Finite-Lived Intangible Assets [Line Items]
Goodwill	$ 9,369	$ 9,434	$ 9,344	$ 9,361
Mortgage servicing rights	2,791	2,645	$ 2,591	$ 2,512
Total	$ 12,761	12,662
Merchant Processing Contracts [Member]
Finite-Lived Intangible Assets [Line Items]
Amortization Method	SL/AC
Finite-Lived Intangible Assets	$ 155	89
Core Deposit Benefits [Member]
Finite-Lived Intangible Assets [Line Items]
Amortization Method	SL/AC
Finite-Lived Intangible Assets	$ 104	131
Trust Relationships [Member]
Finite-Lived Intangible Assets [Line Items]
Amortization Method	SL/AC
Finite-Lived Intangible Assets	$ 34	45
Other Identified Intangibles [Member]
Finite-Lived Intangible Assets [Line Items]
Amortization Method	SL/AC
Finite-Lived Intangible Assets	$ 308	$ 318
Straight line method [Member] | Merchant Processing Contracts [Member]
Finite-Lived Intangible Assets [Line Items]
Estimated Life	6 years
Straight line method [Member] | Core Deposit Benefits [Member]
Finite-Lived Intangible Assets [Line Items]
Estimated Life	22 years
Straight line method [Member] | Trust Relationships [Member]
Finite-Lived Intangible Assets [Line Items]
Estimated Life	10 years
Straight line method [Member] | Other Identified Intangibles [Member]
Finite-Lived Intangible Assets [Line Items]
Estimated Life	5 years
Accelerated method [Member] | Merchant Processing Contracts [Member]
Finite-Lived Intangible Assets [Line Items]
Estimated Life	8 years
Accelerated method [Member] | Core Deposit Benefits [Member]
Finite-Lived Intangible Assets [Line Items]
Estimated Life	5 years
Accelerated method [Member] | Trust Relationships [Member]
Finite-Lived Intangible Assets [Line Items]
Estimated Life	7 years
Accelerated method [Member] | Other Identified Intangibles [Member]
Finite-Lived Intangible Assets [Line Items]
Estimated Life	4 years

Intangible Assets - Aggregate A

Intangible Assets - Aggregate Amortization Expense (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Finite-Lived Intangible Assets [Line Items]
Amortization of intangibles	$ 161	$ 175	$ 179
Merchant Processing Contracts [Member]
Finite-Lived Intangible Assets [Line Items]
Amortization of intangibles	24	24	28
Core Deposit Benefits [Member]
Finite-Lived Intangible Assets [Line Items]
Amortization of intangibles	26	30	34
Trust Relationships [Member]
Finite-Lived Intangible Assets [Line Items]
Amortization of intangibles	11	14	16
Other Identified Intangibles [Member]
Finite-Lived Intangible Assets [Line Items]
Amortization of intangibles	$ 100	$ 107	$ 101

Intangible Assets - Estimated A

Intangible Assets - Estimated Amortization Expense (Detail) $ in Millions	Dec. 31, 2017USD ($)
Finite-Lived Intangible Assets, Net, Amortization Expense, Fiscal Year Maturity [Abstract]
2,019	$ 141
2,020	113
2,021	90
2,022	74
2,023	$ 45

Intangible Assets - Changes in

Intangible Assets - Changes in Carrying Value of Goodwill (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Goodwill [Line Items]
Goodwill, Beginning Balance	$ 9,434	$ 9,344	$ 9,361
Goodwill acquired	105	62
Disposal	(155)
Foreign exchange translation and other	(15)	28	(17)
Goodwill, Ending Balance	9,369	9,434	9,344
Corporate and Commercial Banking [Member]
Goodwill [Line Items]
Goodwill, Beginning Balance	1,647	1,647	1,647
Goodwill, Ending Balance	1,647	1,647	1,647
Consumer and Business Banking [Member]
Goodwill [Line Items]
Goodwill, Beginning Balance	3,681	3,681	3,681
Disposal	(155)
Foreign exchange translation and other	(51)
Goodwill, Ending Balance	3,475	3,681	3,681
Wealth Management and Investment Services [Member]
Goodwill [Line Items]
Goodwill, Beginning Balance	1,569	1,566	1,567
Foreign exchange translation and other	49	3	(1)
Goodwill, Ending Balance	1,618	1,569	1,566
Payment Services [Member]
Goodwill [Line Items]
Goodwill, Beginning Balance	2,537	2,450	2,466
Goodwill acquired	105	62
Foreign exchange translation and other	(13)	25	(16)
Goodwill, Ending Balance	$ 2,629	$ 2,537	$ 2,450

Deposits - Composition of Depos

Deposits - Composition of Deposits (Detail) - USD ($) $ in Millions		Dec. 31, 2018	Dec. 31, 2017
Banking and Thrift [Abstract]
Noninterest-bearing deposits		$ 81,811	$ 87,557
Interest-bearing deposits
Interest checking		73,994	74,520
Money market savings		100,396	107,973
Savings accounts		44,720	43,809
Time deposits		44,554	33,356
Total interest-bearing deposits	[1]	263,664	259,658
Total deposits		$ 345,475	$ 347,215
[1]	lncludes time deposits greater than $250,000 balances of $15.3 billion and $6.8 billion at December 31, 2018 and 2017, respectively.

Deposits - Maturities of Time D

Deposits - Maturities of Time Deposits Outstanding (Detail) - USD ($) $ in Millions	Dec. 31, 2018	Dec. 31, 2017
Banking and Thrift [Abstract]
2,019	$ 38,272
2,020	3,214
2,021	1,740
2,022	726
2,023	598
Thereafter	4
Total	$ 44,554	$ 33,356

Short-Term Borrowings - Summary

Short-Term Borrowings - Summary of Short-Term Borrowings (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Short-term Debt [Line Items]
Short-term borrowings	$ 14,139	$ 16,651	$ 13,963
Short-term borrowings, interest rate, at year end	1.92%	1.31%	0.43%
Short-term borrowings, average for the year	$ 21,790	$ 15,022	$ 19,906
Short-term borrowings, interest rate, average for the year	1.78%	1.00%	0.48%
Federal Funds Purchased [Member]
Short-term Debt [Line Items]
Short-term borrowings	$ 458	$ 252	$ 447
Short-term borrowings, interest rate, at year end	2.05%	0.77%	0.30%
Short-term borrowings, average for the year	$ 1,070	$ 528	$ 1,015
Short-term borrowings, interest rate, average for the year	1.70%	0.86%	0.30%
Short-term borrowings, maximum month end balance	$ 4,532	$ 600	$ 2,487
Securities Sold under Agreements to Repurchase [Member]
Short-term Debt [Line Items]
Short-term borrowings	$ 2,582	$ 803	$ 801
Short-term borrowings, interest rate, at year end	2.20%	0.61%	0.12%
Short-term borrowings, average for the year	$ 2,279	$ 917	$ 891
Short-term borrowings, interest rate, average for the year	1.87%	0.44%	0.18%
Short-term borrowings, maximum month end balance	$ 3,225	$ 927	$ 1,177
Commercial Paper [Member]
Short-term Debt [Line Items]
Short-term borrowings	$ 6,940	$ 8,303	$ 10,010
Short-term borrowings, interest rate, at year end	1.35%	0.68%	0.30%
Short-term borrowings, average for the year	$ 6,929	$ 8,236	$ 14,827
Short-term borrowings, interest rate, average for the year	0.94%	0.49%	0.26%
Short-term borrowings, maximum month end balance	$ 7,846	$ 9,950	$ 21,441
Other Short-Term Borrowings [Member]
Short-term Debt [Line Items]
Short-term borrowings	$ 4,159	$ 7,293	$ 2,705
Short-term borrowings, interest rate, at year end	2.68%	2.13%	1.00%
Short-term borrowings, average for the year	$ 11,512	$ 5,341	$ 3,173
Short-term borrowings, interest rate, average for the year	2.27%	1.90%	1.67%
Short-term borrowings, maximum month end balance	$ 16,588	$ 7,293	$ 6,771

Short-Term Borrowings - Summa_2

Short-Term Borrowings - Summary of Short-Term Borrowings (Parenthetical) (Detail)	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Short-term Debt [Abstract]
Federal statutory rate	21.00%	35.00%	35.00%

Long-Term Debt - Summary of Lon

Long-Term Debt - Summary of Long-term Debt (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017
Debt Instrument [Line Items]
Long-term debt	$ 41,340	$ 32,259
Parent Company [Member]
Debt Instrument [Line Items]
Long-term debt	16,291	15,769
Parent Company [Member] | Other Debt Issuance Fees and Unrealized Gains and Losses and Deferred Amounts Relating to Derivative Instruments [Member]
Debt Instrument [Line Items]
Long-term debt	(53)	(29)
Subsidiaries [Member]
Debt Instrument [Line Items]
Long-term debt	25,049	16,490
Subsidiaries [Member] | Other Consolidated Community Development and Tax-Advantaged Investment Vies, Capitalized Lease Obligations, Debt Issuance Fees, and Unrealized Gains and Losses and Deferred Amounts Relating to Derivative Instruments [Member]
Debt Instrument [Line Items]
Long-term debt	$ 1,006	1,000
Fixed Rate [Member] | Parent Company [Member] | Subordinated Notes [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	2.95%
Debt Instrument Maturity Year, start	Jan. 1, 2022
Debt Instrument Maturity Year, End	Dec. 31, 2022
Long-term debt	$ 1,300	1,300
Fixed Rate [Member] | Parent Company [Member] | Subordinated Debt One [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	3.60%
Debt Instrument Maturity Year, start	Jan. 1, 2024
Debt Instrument Maturity Year, End	Dec. 31, 2024
Long-term debt	$ 1,000	1,000
Fixed Rate [Member] | Parent Company [Member] | Subordinated Notes Two [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	7.50%
Debt Instrument Maturity Year, start	Jan. 1, 2026
Debt Instrument Maturity Year, End	Dec. 31, 2026
Long-term debt	$ 199	199
Fixed Rate [Member] | Parent Company [Member] | Subordinated Notes Three [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	3.10%
Debt Instrument Maturity Year, start	Jan. 1, 2026
Debt Instrument Maturity Year, End	Dec. 31, 2026
Long-term debt	$ 1,000	1,000
Fixed Rate [Member] | Parent Company [Member] | Medium-term Notes [Member]
Debt Instrument [Line Items]
Debt Instrument Maturity Year, start	Jan. 1, 2019
Debt Instrument Maturity Year, End	Dec. 31, 2028
Long-term debt	$ 12,345	11,299
Fixed Rate [Member] | Parent Company [Member] | Medium-term Notes [Member] | Minimum [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	0.85%
Fixed Rate [Member] | Parent Company [Member] | Medium-term Notes [Member] | Maximum [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	4.125%
Fixed Rate [Member] | Subsidiaries [Member] | Federal Home Loan Bank Advances [Member]
Debt Instrument [Line Items]
Debt Instrument Maturity Year, start	Jan. 1, 2019
Debt Instrument Maturity Year, End	Dec. 31, 2026
Long-term debt	$ 307	208
Fixed Rate [Member] | Subsidiaries [Member] | Federal Home Loan Bank Advances [Member] | Minimum [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	1.25%
Fixed Rate [Member] | Subsidiaries [Member] | Federal Home Loan Bank Advances [Member] | Maximum [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	8.25%
Fixed Rate [Member] | Subsidiaries [Member] | Bank Notes [Member]
Debt Instrument [Line Items]
Debt Instrument Maturity Year, start	Jan. 1, 2019
Debt Instrument Maturity Year, End	Dec. 31, 2025
Long-term debt	$ 11,600	6,200
Fixed Rate [Member] | Subsidiaries [Member] | Bank Notes [Member] | Minimum [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	1.40%
Fixed Rate [Member] | Subsidiaries [Member] | Bank Notes [Member] | Maximum [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	3.45%
Floating Rate [Member] | Parent Company [Member] | Medium-term Notes [Member]
Debt Instrument [Line Items]
Debt Instrument Maturity Year, start	Jan. 1, 2019
Debt Instrument Maturity Year, End	Dec. 31, 2022
Long-term debt	$ 500	1,000
Floating Rate [Member] | Parent Company [Member] | Medium-term Notes [Member] | Minimum [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	2.89%
Floating Rate [Member] | Parent Company [Member] | Medium-term Notes [Member] | Maximum [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	3.127%
Floating Rate [Member] | Subsidiaries [Member] | Federal Home Loan Bank Advances [Member]
Debt Instrument [Line Items]
Debt Instrument Maturity Year, start	Jan. 1, 2019
Debt Instrument Maturity Year, End	Dec. 31, 2026
Long-term debt	$ 4,272	5,272
Floating Rate [Member] | Subsidiaries [Member] | Federal Home Loan Bank Advances [Member] | Minimum [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	2.65%
Floating Rate [Member] | Subsidiaries [Member] | Federal Home Loan Bank Advances [Member] | Maximum [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	3.175%
Floating Rate [Member] | Subsidiaries [Member] | Bank Notes [Member]
Debt Instrument [Line Items]
Debt Instrument Maturity Year, start	Jan. 1, 2019
Debt Instrument Maturity Year, End	Dec. 31, 2058
Long-term debt	$ 7,864	$ 3,810
Floating Rate [Member] | Subsidiaries [Member] | Bank Notes [Member] | Minimum [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	2.177%
Floating Rate [Member] | Subsidiaries [Member] | Bank Notes [Member] | Maximum [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	3.009%

Long-Term Debt - Summary of L_2

Long-Term Debt - Summary of Long-term Debt (Parenthetical) (Detail)	Dec. 31, 2018
Medium-term Notes [Member]
Debt Instrument [Line Items]
Weighted-average interest rate	2.84%
Federal Home Loan Bank Advances [Member]
Debt Instrument [Line Items]
Weighted-average interest rate	2.96%
Bank Notes [Member]
Debt Instrument [Line Items]
Weighted-average interest rate	2.63%

Long-Term Debt - Additional Inf

Long-Term Debt - Additional Information (Detail) - USD ($) $ in Billions	Dec. 31, 2018	Dec. 31, 2017
Federal Home Loan Bank and Federal Reserve Bank [Member]
Debt Instrument [Line Items]
Unused Borrowing Capacity under Federal Home Loan Bank and Federal Reserve Bank	$ 98.8	$ 87.7

Long-Term Debt - Maturities of

Long-Term Debt - Maturities of Long-term Debt Outstanding (Detail) - USD ($) $ in Millions	Dec. 31, 2018	Dec. 31, 2017
Debt Instrument [Line Items]
2,019	$ 8,080
2,020	6,407
2,021	6,719
2,022	4,082
2,023	2,004
Thereafter	14,048
Total	41,340	$ 32,259
Parent Company [Member]
Debt Instrument [Line Items]
2,019	1,497
2,021	2,696
2,022	3,793
Thereafter	8,305
Total	$ 16,291	$ 15,769

Shareholders' Equity - Addition

Shareholders' Equity - Additional Information (Detail) - USD ($) $ / shares in Units, $ in Millions	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2006
Class of Stock [Line Items]
Number of preferred stock shares authorized	50,000,000	50,000,000
Number of common stock shares authorized	4,000,000,000	4,000,000,000
Number of common stock shares outstanding	1,600,000,000	1,700,000,000
Number of common stock shares reserved for future issuance	52,000,000
Issuance costs of redeemed preferred stock		$ (10)
Remaining authorized share repurchase amount	$ 1,400
Preferred stock outstanding	209,510	186,510
Series H [Member]
Class of Stock [Line Items]
Preferred Stock, Shares Issued					20,000
Liquidation preference per share					$ 25,000
Preferred stock dividend rate fixed percentage					5.15%
Preferred stock outstanding	20,000	20,000
Series F [Member]
Class of Stock [Line Items]
Preferred Stock, Shares Issued						44,000
Liquidation preference per share						$ 25,000
Preferred stock dividend rate fixed percentage						6.50%
Redemption period of preferred stock						90 days
Preferred stock redemption date						Jan. 15, 2022
Preferred stock dividend rate variable percentage						4.468%
Preferred stock outstanding	44,000	44,000
Series K Preferred Stock [Member]
Class of Stock [Line Items]
Preferred Stock, Shares Issued	23,000
Liquidation preference per share	$ 25,000
Preferred stock dividend rate fixed percentage	5.50%
Redemption period of preferred stock	90 days
Preferred stock redemption date	Oct. 15, 2023
Preferred stock outstanding	23,000
Series A [Member]
Class of Stock [Line Items]
Preferred Stock, Shares Issued							6,764	5,746
Liquidation preference per share							$ 100,000	$ 100,000
Preferred stock dividend rate fixed percentage							3.50%	3.50%
Preferred stock dividend rate variable percentage							1.02%	1.02%
Preferred stock outstanding	12,510	12,510
Series A [Member] | Noncontrolling Interests [Member]
Class of Stock [Line Items]
Liquidation preference per share									$ 100,000
Preferred stock dividend rate variable percentage									1.147%
Minority interest preferred stock, shares issued									5,000
Number of stock repurchased during period			500
Gain due to repurchase of preferred stock			$ 9
Preferred stock outstanding	4,500
Series B [Member]
Class of Stock [Line Items]
Preferred Stock, Shares Issued									40,000
Liquidation preference per share									$ 25,000
Preferred stock dividend rate fixed percentage									3.50%
Preferred stock dividend rate variable percentage									0.60%
Preferred stock outstanding	40,000	40,000
Series I [Member]
Class of Stock [Line Items]
Preferred Stock, Shares Issued				30,000
Liquidation preference per share				$ 25,000
Preferred stock dividend rate fixed percentage				5.125%
Redemption period of preferred stock				90 days
Preferred stock redemption date				Jan. 15, 2021
Preferred stock dividend rate variable percentage				3.486%
Preferred stock outstanding	30,000	30,000
Series J [Member]
Class of Stock [Line Items]
Preferred Stock, Shares Issued		40,000
Liquidation preference per share		$ 25,000
Preferred stock dividend rate fixed percentage		5.30%
Redemption period of preferred stock		90 days
Preferred stock redemption date		Apr. 15, 2027
Preferred stock dividend rate variable percentage		2.914%
Preferred stock outstanding	40,000	40,000
Series G [Member]
Class of Stock [Line Items]
Preferred Stock, Shares Issued						43,400
Liquidation preference per share						$ 25,000
Issuance costs of redeemed preferred stock		$ (10)

Shareholders' Equity - Number o

Shareholders' Equity - Number of Shares Issued and Outstanding and Carrying Amount of Preferred Stock (Detail) - USD ($) $ in Millions	Dec. 31, 2018	Dec. 31, 2017
Class of Stock [Line Items]
Shares Issued and Outstanding	209,510	186,510
Liquidation Preference	$ 6,176	$ 5,601
Discount	192	182
Carrying Amount	$ 5,984	$ 5,419
Series A [Member]
Class of Stock [Line Items]
Shares Issued and Outstanding	12,510	12,510
Liquidation Preference	$ 1,251	$ 1,251
Discount	145	145
Carrying Amount	$ 1,106	$ 1,106
Series B [Member]
Class of Stock [Line Items]
Shares Issued and Outstanding	40,000	40,000
Liquidation Preference	$ 1,000	$ 1,000
Carrying Amount	$ 1,000	$ 1,000
Series F [Member]
Class of Stock [Line Items]
Shares Issued and Outstanding	44,000	44,000
Liquidation Preference	$ 1,100	$ 1,100
Discount	12	12
Carrying Amount	$ 1,088	$ 1,088
Series H [Member]
Class of Stock [Line Items]
Shares Issued and Outstanding	20,000	20,000
Liquidation Preference	$ 500	$ 500
Discount	13	13
Carrying Amount	$ 487	$ 487
Series I [Member]
Class of Stock [Line Items]
Shares Issued and Outstanding	30,000	30,000
Liquidation Preference	$ 750	$ 750
Discount	5	5
Carrying Amount	$ 745	$ 745
Series J [Member]
Class of Stock [Line Items]
Shares Issued and Outstanding	40,000	40,000
Liquidation Preference	$ 1,000	$ 1,000
Discount	7	7
Carrying Amount	$ 993	$ 993
Series K Preferred Stock [Member]
Class of Stock [Line Items]
Shares Issued and Outstanding	23,000
Liquidation Preference	$ 575
Discount	10
Carrying Amount	$ 565

Shareholders' Equity - Number_2

Shareholders' Equity - Number of Shares Issued and Outstanding and Carrying Amount of Preferred Stock (Parenthetical) (Detail) - $ / shares	Dec. 31, 2018	Dec. 31, 2017
Equity [Abstract]
Preferred stock, par value	$ 1	$ 1

Shareholders' Equity - Common S

Shareholders' Equity - Common Stock Repurchased (Detail) - USD ($) shares in Millions, $ in Millions	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Equity [Abstract]
Common stock repurchased shares	54	49	61
Purchase of treasury stock	$ 2,844	$ 2,622	$ 2,600

Shareholders' Equity - Reconcil

Shareholders' Equity - Reconciliation of Transactions Affecting Accumulated Other Comprehensive Income (Loss) Included in Shareholders' Equity (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Accumulated Other Comprehensive Income (Loss) [Line Items]
Balance at beginning of period	$ (1,404)	$ (1,535)	$ (1,019)
Revaluation of tax related balances	(300)
Changes in unrealized gains and losses	(656)	178	(858)
Changes in unrealized gains and losses	39	(5)	74
Changes in unrealized gains and losses	(302)	(41)	(255)
Changes in unrealized gains and losses	(919)	132	(1,039)
Other-than-temporary impairment not recognized in earnings on securities available-for-sale			(1)
Foreign currency translation adjustment	3	(2)	(28)
Reclassification to earnings of realized gains and losses	93	77	247
Applicable income taxes	205	(76)	305
Balance at end of period	(2,322)	(1,404)	(1,535)
Foreign Currency Translation [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Balance at beginning of period	(69)	(71)	(43)
Revaluation of tax related balances	(13)
Foreign currency translation adjustment	3	(2)	(28)
Applicable income taxes	(5)	4
Balance at end of period	(84)	(69)	(71)
Unrealized Gains (Losses) on Retirement Plans [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Balance at beginning of period	(1,066)	(1,113)	(1,056)
Revaluation of tax related balances	(229)
Changes in unrealized gains and losses	(302)	(41)	(255)
Reclassification to earnings of realized gains and losses	137	117	163
Applicable income taxes	42	(29)	35
Balance at end of period	(1,418)	(1,066)	(1,113)
Unrealized Gains (Losses) on Derivative Hedges [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Balance at beginning of period	71	55	(67)
Revaluation of tax related balances	15
Changes in unrealized gains and losses	39	(5)	74
Reclassification to earnings of realized gains and losses	(5)	30	124
Applicable income taxes	(8)	(9)	(76)
Balance at end of period	112	71	55
Unrealized Gains (Losses) on Investment Securities Transferred From Available For Sale to Held To Maturity [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Balance at beginning of period	17	25	36
Revaluation of tax related balances	4
Reclassification to earnings of realized gains and losses	(9)	(13)	(18)
Applicable income taxes	2	5	7
Balance at end of period	14	17	25
Unrealized Gains (Losses) on Investment Securities Available-For-Sale [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Balance at beginning of period	(357)	(431)	111
Revaluation of tax related balances	(77)
Changes in unrealized gains and losses	(656)	178	(858)
Other-than-temporary impairment not recognized in earnings on securities available-for-sale			(1)
Reclassification to earnings of realized gains and losses	(30)	(57)	(22)
Applicable income taxes	174	(47)	339
Balance at end of period	$ (946)	$ (357)	$ (431)

Shareholders' Equity - Impact t

Shareholders' Equity - Impact to Net Income for Items Reclassified out of Accumulated Other Comprehensive Income and into Earnings (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Realized gains (losses) on sale of investment securities	$ 30	$ 57	$ 27
Amortization of unrealized gains on securities transferred from available-for-sale to held-to-maturity, Interest income	16,173	14,346	13,134
Realized gains (losses) on derivative hedges	(3,254)	(1,966)	(1,468)
Actuarial gains (losses) and prior service cost (credit) amortization	(1,231)	(1,134)	(1,008)
Total securities gains (losses), net	30	57	22
Applicable income taxes	(1,554)	(1,264)	(2,161)
Net income	7,124	6,253	5,944
Reclassification Out of Accumulated Other Comprehensive Income [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Net income	(69)	(48)	(152)
Reclassification Out of Accumulated Other Comprehensive Income [Member] | Unrealized Gains (Losses) on Investment Securities Available-For-Sale [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Realized gains (losses) on sale of investment securities	30	57	27
Other-than-temporary impairment recognized in earnings			(5)
Total securities gains (losses), net	30	57	22
Applicable income taxes	(7)	(22)	(9)
Net income	23	35	13
Reclassification Out of Accumulated Other Comprehensive Income [Member] | Unrealized Gains (Losses) on Investment Securities Transferred From Available For Sale to Held To Maturity [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Amortization of unrealized gains on securities transferred from available-for-sale to held-to-maturity, Interest income	9	13	18
Applicable income taxes	(2)	(5)	(7)
Net income	7	8	11
Reclassification Out of Accumulated Other Comprehensive Income [Member] | Unrealized Gains (Losses) on Derivative Hedges [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Realized gains (losses) on derivative hedges	5	(30)	(124)
Applicable income taxes	(2)	11	48
Net income	3	(19)	(76)
Reclassification Out of Accumulated Other Comprehensive Income [Member] | Unrealized Gains (Losses) on Retirement Plans [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Actuarial gains (losses) and prior service cost (credit) amortization	(137)	(117)	(163)
Applicable income taxes	35	45	63
Net income	$ (102)	$ (72)	$ (100)

Shareholders' Equity - Componen

Shareholders' Equity - Components of Company's Regulatory Capital (Detail) - USD ($) $ in Millions	Dec. 31, 2018	Dec. 31, 2017
Less intangible assets
Qualifying preferred stock	$ 5,984	$ 5,419
Basel III Standardized Approach: [Member]
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
Common shareholders' equity	45,045	43,621
Less intangible assets
Goodwill (net of deferred tax liability)	(8,549)	(8,613)
Other disallowed intangible assets	(601)	(466)
Other	(1,171)	(173)
Total common equity tier 1 capital	34,724	34,369
Qualifying preferred stock	5,984	5,419
Noncontrolling interests eligible for tier 1 capital	36	117
Other	(3)	(99)
Total tier 1 capital	40,741	39,806
Eligible portion of allowance for credit losses	4,441	4,417
Subordinated debt and noncontrolling interests eligible for tier 2 capital	2,996	3,280
Total tier 2 capital	7,437	7,697
Total risk-based capital	48,178	47,503
Risk-weighted assets	381,661	367,771
Basel III Advanced Approaches: [Member]
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
Common shareholders' equity	45,045	43,621
Less intangible assets
Goodwill (net of deferred tax liability)	(8,549)	(8,613)
Other disallowed intangible assets	(601)	(466)
Other	(1,171)	(173)
Total common equity tier 1 capital	34,724	34,369
Qualifying preferred stock	5,984	5,419
Noncontrolling interests eligible for tier 1 capital	36	117
Other	(3)	(99)
Total tier 1 capital	40,741	39,806
Eligible portion of allowance for credit losses	1,399	1,391
Subordinated debt and noncontrolling interests eligible for tier 2 capital	2,996	3,280
Total tier 2 capital	4,395	4,671
Total risk-based capital	45,136	44,477
Risk-weighted assets	$ 295,002	$ 287,211

Earnings Per Share - Components

Earnings Per Share - Components of Earnings Per Share (Detail) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	12 Months Ended
	Dec. 31, 2018		Dec. 31, 2017		Dec. 31, 2016
Earnings Per Share [Abstract]
Net income attributable to U.S. Bancorp	$ 7,096		$ 6,218		$ 5,888
Preferred dividends	(282)	[1]	(267)	[2]	(281)	[3]
Impact of preferred stock redemption			(10)
Impact of the purchase of noncontrolling interests					9
Earnings allocated to participating stock awards	(30)		(28)		(27)
Net income applicable to U.S. Bancorp common shareholders	$ 6,784		$ 5,913		$ 5,589
Average common shares outstanding	1,634		1,677		1,718
Net effect of the exercise and assumed purchase of stock awards	4		6		6
Average diluted common shares outstanding	1,638		1,683		1,724
Earnings per common share	$ 4.15		$ 3.53		$ 3.25
Diluted earnings per common share	$ 4.14		$ 3.51		$ 3.24
[1]	Reflects dividends declared per share on the Company's Series A, Series B, Series F, Series H, Series I, Series J and Series K Non-Cumulative Perpetual Preferred Stock of $3,548.61, $887.15, $1,625.00, $1,287.52, $1,281.25, $1,325.00 and $576.74, respectively.
[2]	Reflects dividends declared per share on the Company's Series A, Series B, Series F, Series G, Series H, Series I and Series J Non-Cumulative Perpetual Preferred Stock of $3,548.61, $887.15, $1,625.00, $375.00, $1,287.52, $1,281.25 and $890.69, respectively.
[3]	Reflects dividends declared per share on the Company's Series A, Series B, Series F, Series G, Series H and Series I Non-Cumulative Perpetual Preferred Stock of $3,558.382, $889.58, $1,625.00, $1,500.00, $1,287.52 and $1,281.25, respectively.

Earnings Per Share - Additional

Earnings Per Share - Additional Information (Detail) - shares shares in Millions	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Stock Option [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Options outstanding of common shares	1	1	1

Employee Benefits - Additional

Employee Benefits - Additional Information (Detail) - USD ($)	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2019
Defined Benefit Plan Disclosure [Line Items]
Qualified employees maximum contribution to defined contribution savings plan allowed in percentage of annual compensation	75.00%
Company contribution to defined savings plan	4.00%
Company contribution, percentage company contribution matches of the employee's percentage contribution matched	100.00%
Employee retirement savings plan matching expenses	$ 171,000,000	$ 156,000,000	$ 142,000,000
Vesting service period for defined benefit pension plan	3 years
Global Equities [Member]
Defined Benefit Plan Disclosure [Line Items]
Asset allocation for the company's qualified pension plan	30.00%
Domestic Mid-Small Cap Equity Securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Asset allocation for the company's qualified pension plan	5.00%
Emerging Markets Equities [Member]
Defined Benefit Plan Disclosure [Line Items]
Asset allocation for the company's qualified pension plan	5.00%
Real Estate Equity Securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Asset allocation for the company's qualified pension plan	10.00%
Long-duration bonds [Member]
Defined Benefit Plan Disclosure [Line Items]
Asset allocation for the company's qualified pension plan	35.00%
Hedge Funds [Member]
Defined Benefit Plan Disclosure [Line Items]
Asset allocation for the company's qualified pension plan	5.00%
Private Equity Funds [Member]
Defined Benefit Plan Disclosure [Line Items]
Asset allocation for the company's qualified pension plan	10.00%
Pension Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Company contributions to qualified pension and postretirement welfare plan	$ 24,000,000	1,238,000,000
Pension Plans [Member] | Qualified Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Company contributions to qualified pension and postretirement welfare plan	0	1,200,000,000
Pension Plans [Member] | Nonqualified Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Company contributions to pension and postretirement welfare plan in next fiscal year	23,000,000
Pension Plans [Member] | Scenario, Forecast [Member] | Qualified Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Company contributions to pension and postretirement welfare plan in next fiscal year				$ 0
Postretirement Welfare Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Company contributions to qualified pension and postretirement welfare plan	5,000,000	$ 5,000,000
Company contributions to pension and postretirement welfare plan in next fiscal year	$ 4,000,000

Employee Benefits - Summary of

Employee Benefits - Summary of Changes in Projected Benefit Obligation, Plan Assets, Funded Status, Amounts Recognized in Consolidated Balance Sheet and Accumulated Other Comprehensive Income (Loss) (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Pension Plans [Member]
Change In Projected Benefit Obligation
Benefit obligation at beginning of measurement period	$ 5,720	$ 5,073
Service cost	208	187	$ 177
Interest cost	224	220	211
Actuarial loss (gain)	(440)	430
Lump sum settlements	(50)	(45)
Benefit payments	(155)	(145)
Benefit obligation at end of measurement period	5,507	5,720	5,073
Change In Fair Value Of Plan Assets
Balance at beginning of period	5,482	3,769
Actual return on plan assets	(365)	665
Employer contributions	24	1,238
Lump sum settlements	(50)	(45)
Benefit payments	(155)	(145)
Balance at end of period	4,936	5,482	3,769
Funded (Unfunded) Status	(571)	(238)
Noncurrent benefit asset		270
Current benefit liability	(23)	(23)
Noncurrent benefit liability	(548)	(485)
Recognized amount	(571)	(238)
Net actuarial gain (loss)	(1,981)	(1,822)
Recognized amount	(1,981)	(1,822)
Postretirement Welfare Plan [Member]
Change In Projected Benefit Obligation
Benefit obligation at beginning of measurement period	68	75
Interest cost	2	2	3
Participants' contributions	8	8
Actuarial loss (gain)	(7)	(1)
Benefit payments	(18)	(18)
Federal subsidy on benefits paid	1	2
Benefit obligation at end of measurement period	54	68	75
Change In Fair Value Of Plan Assets
Balance at beginning of period	87	82
Actual return on plan assets		10
Employer contributions	5	5
Participants' contributions	7	8
Benefit payments	(18)	(18)
Balance at end of period	81	87	$ 82
Funded (Unfunded) Status	27	19
Noncurrent benefit asset	26	19
Recognized amount	26	19
Net actuarial gain (loss)	66	68
Net prior service credit (cost)	18	22
Recognized amount	$ 84	$ 90

Employee Benefits - Summary o_2

Employee Benefits - Summary of Changes in Projected Benefit Obligation, Plan Assets, Funded Status, Amounts Recognized in Consolidated Balance Sheet and Accumulated Other Comprehensive Income (Loss) (Parenthetical) (Detail) - USD ($) $ in Billions	Dec. 31, 2018	Dec. 31, 2017
Pension Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Accumulated benefit obligation for all pension plans	$ 5	$ 5.2

Employee Benefits - Pension Pla

Employee Benefits - Pension Plans with Benefit Obligations in Excess of Plan Assets (Detail) - USD ($) $ in Millions	Dec. 31, 2018	Dec. 31, 2017
Pension Plans with Projected Benefit Obligations in Excess of Plan Assets
Projected benefit obligation	$ 5,507	$ 508
Fair value of plan assets	4,936
Pension Plans with Accumulated Benefit Obligations in Excess of Plan Assets
Accumulated benefit obligation	467	485
Fair value of plan assets	$ 0	$ 0

Employee Benefits - Components

Employee Benefits - Components of Net Periodic Benefit Cost and Other Amounts Recognized in Accumulated Other Comprehensive Income (Loss) (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Pension Plans [Member]
Components Of Net Periodic Benefit Cost
Service cost	$ 208	$ 187	$ 177
Interest cost	224	220	211
Expected return on plan assets	(379)	(284)	(266)
Prior service cost (credit) and transition obligation (asset) amortization		(2)	(5)
Actuarial loss (gain) amortization	146	127	175
Net periodic benefit cost	199	248	292
Net actuarial gain (loss) arising during the year	(305)	(48)	(270)
Net actuarial loss (gain) amortized during the year	146	127	175
Net prior service cost (credit) and transition obligation (asset) amortized during the year		(2)	(5)
Total recognized in other comprehensive income (loss)	(159)	77	(100)
Total recognized in net periodic benefit cost and other comprehensive income (loss)	(358)	(171)	(392)
Postretirement Welfare Plan [Member]
Components Of Net Periodic Benefit Cost
Interest cost	2	2	3
Expected return on plan assets	(3)	(3)	(1)
Prior service cost (credit) and transition obligation (asset) amortization	(3)	(3)	(3)
Actuarial loss (gain) amortization	(6)	(5)	(4)
Net periodic benefit cost	(10)	(9)	(5)
Net actuarial gain (loss) arising during the year	3	7	15
Net actuarial loss (gain) amortized during the year	(6)	(5)	(4)
Net prior service cost (credit) and transition obligation (asset) amortized during the year	(3)	(3)	(3)
Total recognized in other comprehensive income (loss)	(6)	(1)	8
Total recognized in net periodic benefit cost and other comprehensive income (loss)	$ 4	$ 8	$ 13

Employee Benefits - Weighted Av

Employee Benefits - Weighted Average Assumptions to Determine Projected Benefit Obligations (Detail)	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017
Projected Benefit Obligation Assumptions [Member] | Prior to Age 65 [Member]
Health care cost trend rate
Health care cost trend rate	6.50%	6.75%
Projected Benefit Obligation Assumptions [Member] | After Age 65 [Member]
Health care cost trend rate
Health care cost trend rate	10.00%	6.75%
Pension Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Discount rate	4.45%	3.84%
Cash balance interest crediting rate	3.00%	3.00%
Rate of compensation increase	3.52%	3.56%
Postretirement Welfare Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Discount rate	4.05%	3.34%

Employee Benefits - Weighted _2

Employee Benefits - Weighted Average Assumptions to Determine Projected Benefit Obligations (Parenthetical) (Detail)	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017
Projected Benefit Obligation Assumptions [Member] | Prior to Age 65 [Member]
Defined Benefit Plan Disclosure [Line Items]
Assumed rate decrease	5.00%	5.00%
Health care cost trend rate to decrease Period	2,025	2,025
Projected Benefit Obligation Assumptions [Member] | After Age 65 [Member]
Defined Benefit Plan Disclosure [Line Items]
Assumed rate decrease	5.00%	5.00%
Health care cost trend rate to decrease Period	2,025	2,025
Postretirement Welfare Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Assumed plan duration	5 years 10 months 24 days	6 years 1 month 6 days
Qualified Plan [Member] | Pension Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Assumed plan duration	14 years 8 months 12 days	15 years 9 months 18 days
Nonqualified Plan [Member] | Pension Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Assumed plan duration	11 years 6 months	12 years 3 months 18 days

Employee Benefits - Weighted _3

Employee Benefits - Weighted Average Assumptions Used to Determine Net Periodic Benefit Cost (Detail)	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Pension Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Discount rate	3.84%	4.27%	4.45%
Cash balance interest crediting rate	3.00%	3.00%	3.00%
Expected return on plan assets	7.25%	7.25%	7.50%
Rate of compensation increase	3.56%	3.58%	4.06%
Postretirement Welfare Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Discount rate	3.34%	3.57%	3.59%
Expected return on plan assets	3.50%	3.50%	1.50%
Prior to Age 65 [Member] | Net Periodic Benefit Cost Assumptions [Member]
Health care cost trend rate (d)
Health care cost trend rate	6.75%	7.00%	6.50%
After Age 65 [Member] | Net Periodic Benefit Cost Assumptions [Member]
Health care cost trend rate (d)
Health care cost trend rate	6.75%	7.00%	6.50%

Employee Benefits - Weighted _4

Employee Benefits - Weighted Average Assumptions Used to Determine Net Periodic Benefit Cost (Parenthetical) (Detail)	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Net Periodic Benefit Cost Assumptions [Member] | Prior to Age 65 [Member]
Defined Benefit Plan Disclosure [Line Items]
Assumed rate decrease	5.00%	5.00%	5.00%
Health care cost trend rate to decrease Period	2,025	2,025	2,019
Net Periodic Benefit Cost Assumptions [Member] | After Age 65 [Member]
Defined Benefit Plan Disclosure [Line Items]
Assumed rate decrease	5.00%	5.00%	5.00%
Health care cost trend rate to decrease Period	2,025	2,025	2,019
Net Periodic Benefit Cost Assumptions [Member] | Postretirement Welfare Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Assumed plan duration	6 years 1 month 6 days	6 years 2 months 12 days
Net Periodic Benefit Cost Assumptions [Member] | Qualified Plan [Member] | Pension Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Assumed plan duration	15 years 9 months 18 days	15 years 6 months
Net Periodic Benefit Cost Assumptions [Member] | Nonqualified Plan [Member] | Pension Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Assumed plan duration	12 years 3 months 18 days	12 years 1 month 6 days

Employee Benefits - Summary o_3

Employee Benefits - Summary of Plan Investment Assets Measured at Fair Value (Detail) - USD ($) $ in Millions	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Level 3 [Member] | Other [Member]
Defined Benefit Plan Disclosure [Line Items]
Plan assets measured at fair value	$ 3	$ 2	$ 1	$ 1
Pension Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Plan assets measured at fair value	4,936	5,482	3,769
Plan assets measured at fair value, excluding assets not classified in fair hierarchy	2,109	2,510
Pension Plans [Member] | Cash and Cash Equivalents [Member]
Defined Benefit Plan Disclosure [Line Items]
Plan assets measured at fair value	54	727
Pension Plans [Member] | Debt Securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Plan assets measured at fair value	1,535	1,240
Pension Plans [Member] | Real Estate Equity Securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Plan assets measured at fair value	109	216
Pension Plans [Member] | Debt Securities Mutual Funds [Member]
Defined Benefit Plan Disclosure [Line Items]
Plan assets measured at fair value	295	205
Pension Plans [Member] | Emerging Markets Equity Mutual Fund Securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Plan assets measured at fair value	113	120
Pension Plans [Member] | Other [Member]
Defined Benefit Plan Disclosure [Line Items]
Plan assets measured at fair value	3	2
Pension Plans [Member] | Collective Investment Funds Domestic Equity Securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Plan assets measured at fair value	1,183	1,327
Pension Plans [Member] | Collective Investment Fund Mid-Small Cap Equity Securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Plan assets measured at fair value	340	346
Pension Plans [Member] | Collective Investment Funds International Equity Securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Plan assets measured at fair value	643	934
Pension Plans [Member] | Real Estate Securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Plan assets measured at fair value	146
Pension Plans [Member] | Hedge Funds [Member]
Defined Benefit Plan Disclosure [Line Items]
Plan assets measured at fair value	290	200
Pension Plans [Member] | Private Equity Funds [Member]
Defined Benefit Plan Disclosure [Line Items]
Plan assets measured at fair value	225	165
Pension Plans [Member] | Level 1 [Member]
Defined Benefit Plan Disclosure [Line Items]
Plan assets measured at fair value, excluding assets not classified in fair hierarchy	794	1,460
Pension Plans [Member] | Level 1 [Member] | Cash and Cash Equivalents [Member]
Defined Benefit Plan Disclosure [Line Items]
Plan assets measured at fair value	54	727
Pension Plans [Member] | Level 1 [Member] | Debt Securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Plan assets measured at fair value	631	517
Pension Plans [Member] | Level 1 [Member] | Real Estate Equity Securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Plan assets measured at fair value	109	216
Pension Plans [Member] | Level 2 [Member]
Defined Benefit Plan Disclosure [Line Items]
Plan assets measured at fair value, excluding assets not classified in fair hierarchy	1,312	1,048
Pension Plans [Member] | Level 2 [Member] | Debt Securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Plan assets measured at fair value	904	723
Pension Plans [Member] | Level 2 [Member] | Debt Securities Mutual Funds [Member]
Defined Benefit Plan Disclosure [Line Items]
Plan assets measured at fair value	295	205
Pension Plans [Member] | Level 2 [Member] | Emerging Markets Equity Mutual Fund Securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Plan assets measured at fair value	113	120
Pension Plans [Member] | Level 3 [Member]
Defined Benefit Plan Disclosure [Line Items]
Plan assets measured at fair value, excluding assets not classified in fair hierarchy	3	2
Pension Plans [Member] | Level 3 [Member] | Other [Member]
Defined Benefit Plan Disclosure [Line Items]
Plan assets measured at fair value	3	2
Postretirement Welfare Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Plan assets measured at fair value	81	87	$ 82
Postretirement Welfare Plan [Member] | Level 1 [Member]
Defined Benefit Plan Disclosure [Line Items]
Plan assets measured at fair value	77	87
Plan assets measured at fair value, excluding assets not classified in fair hierarchy	40	36
Postretirement Welfare Plan [Member] | Level 1 [Member] | Cash and Cash Equivalents [Member]
Defined Benefit Plan Disclosure [Line Items]
Plan assets measured at fair value	40	36
Postretirement Welfare Plan [Member] | Level 1 [Member] | Collective Investment Funds Domestic Equity Securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Plan assets measured at fair value	23	29
Postretirement Welfare Plan [Member] | Level 1 [Member] | Collective Investment Funds International Equity Securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Plan assets measured at fair value	$ 14	$ 22

Employee Benefits - Summary o_4

Employee Benefits - Summary of Plan Investment Assets Measured at Fair Value (Parenthetical) (Detail) - USD ($) $ in Millions	Dec. 31, 2018	Dec. 31, 2017
Real Estate Equity Securities [Member] | Level 1 [Member] | Domestic Equity Securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Plan assets measured at fair value	$ 56	$ 105
Real Estate Equity Securities [Member] | Level 1 [Member] | International Equity Securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Plan assets measured at fair value	53	111
Collective Investment Fund Mid-Small Cap Equity Securities [Member] | Domestic Equity Securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Plan assets measured at fair value	$ 340	$ 346

Employee Benefits - Summarizes

Employee Benefits - Summarizes Changes for Qualified Pension Plan Investment Assets Measured at Fair Value Using Significant Unobservable Inputs (Level 3) (Detail) - Other [Member] - Level 3 [Member] - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Defined Benefit Plan Disclosure [Line Items]
Balance at beginning of period	$ 2	$ 1	$ 1
Purchases, sales, and settlements, net	1	1	0
Balance at end of period	$ 3	$ 2	$ 1

Employee Benefits - Expected Fu

Employee Benefits - Expected Future Benefit Payments (Detail) $ in Millions	Dec. 31, 2018USD ($)
Pension Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
2,019	$ 216
2,020	233
2,021	252
2,022	268
2,023	285
2024-2028	1,692
Postretirement Welfare Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
2,019	8
2,020	8
2,021	7
2,022	7
2,023	6
2024-2028	24
Medicare Part D Subsidy [Member]
Defined Benefit Plan Disclosure [Line Items]
2,019	1
2,020	1
2,021	1
2,022	1
2,023	1
2024-2028	$ 2

Stock-Based Compensation - Addi

Stock-Based Compensation - Additional Information (Detail) - USD ($) shares in Millions, $ in Millions	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Shares available for grant under Company's stock incentive plan (subject to adjustment for forfeitures)	35
Fair value of shares vested	$ 182	$ 180	$ 128
Stock-based compensation expense	174	163	150
Stock-based compensation expense on an after tax basis	130	$ 101	$ 93
Unrecognized compensation cost related to nonvested share-based arrangements granted under plans	$ 171
Unrecognized compensation cost recognized over a weighted-average period as compensation expense	1 year 10 months 24 days
Minimum [Member]
Stock and unit awards vesting period	3 years
Maximum [Member]
Date of grant exercisable period	10 years
Stock and unit awards vesting period	5 years

Stock-Based Compensation - Summ

Stock-Based Compensation - Summary of Stock Options Outstanding and Exercised Under Prior and Existing Stock Incentive Plans (Detail) - USD ($) $ / shares in Units, $ in Millions	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Share-based Compensation Arrangement by Share-based Payment Award, Stock Options/Shares Outstanding, Weighted-Average Exercise Price, and Additional Disclosures [Abstract]
Stock Options/Shares, Outstanding at Beginning of the Period	12,668,467	17,059,241	25,725,708
Stock Options/Shares, Granted		1,066,188	1,644,288
Stock Options/Shares, Exercised	(3,443,494)	(5,389,741)	(10,163,668)
Stock Options/Shares, Cancelled	(109,963)	(67,221)	(147,087)
Stock Options/Shares, Outstanding at End of the Period	9,115,010	12,668,467	17,059,241
Stock Options/Shares, Exercisable at End of Period	7,372,036	9,647,937	13,856,142
Weighted-Average Exercise Price, Outstanding at Beginning of the Period	$ 32.15	$ 29.95	$ 29.82
Weighted-Average Exercise Price, Granted		54.97	39.50
Weighted-Average Exercise Price, Exercised	25.41	29.58	31.09
Weighted-Average Exercise Price, Cancelled	46.72	43.31	35.18
Weighted-Average Exercise Price, Outstanding at End of the Period	34.52	32.15	29.95
Weighted-Average Exercise Price, Exercisable at End of Period	$ 31.61	$ 27.87	$ 27.53
Weighted-Average Remaining Contractual Term, Outstanding at the End of the Period	4 years 3 months 18 days	4 years 6 months	4 years 1 month 6 days
Weighted-Average Remaining Contractual Term, Exercisable at End of Period	3 years 6 months	3 years 3 months 19 days	3 years 1 month 6 days
Aggregate Intrinsic Value, Outstanding at the End of the Period	$ 102	$ 272	$ 365
Aggregate Intrinsic Value, Exercisable at End of Period	$ 104	$ 248	$ 330

Stock-Based Compensation - Weig

Stock-Based Compensation - Weighted-Average Estimated Fair Value of Stock Options Granted and Assumptions Utilized by Company for Newly Issued Grants (Detail) - $ / shares	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions and Methodology [Abstract]
Estimated fair value	$ 14.66	$ 10.28
Risk-free interest rates	2.00%	1.30%
Dividend yield	2.60%	2.60%
Stock volatility factor	0.35%	0.36%
Expected life of options (in years)	5 years 6 months	5 years 6 months

Stock-Based Compensation - Su_2

Stock-Based Compensation - Summary of Certain Stock Option Activity (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Share-based Compensation Arrangement by Share-based Payment Award, Options, Additional Disclosures [Abstract]
Fair value of options vested	$ 14	$ 13	$ 18
Intrinsic value of options exercised	97	127	138
Cash received from options exercised	$ 87	159	316
Tax benefit realized from options exercised		$ 49	$ 53

Stock-Based Compensation - Stoc

Stock-Based Compensation - Stock Options Outstanding Additional Information (Detail)	12 Months Ended
	Dec. 31, 2018$ / sharesshares
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Outstanding Options, Shares | shares	9,115,010
Outstanding Options, Weighted-Average Remaining Contractual Life (Years)	4 years 3 months 18 days
Outstanding Options, Weighted-Average Exercise Price	$ 34.52
Exercisable Options, Shares | shares	7,372,036
Exercisable Options, Weighted-Average Exercise Price	$ 31.61
Exercise Price Range $11.02-$20.00 [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Lower range limit of Exercise Prices	11.02
Upper range limit of Exercise Prices	$ 20
Outstanding Options, Shares | shares	684,748
Outstanding Options, Weighted-Average Remaining Contractual Life (Years)	1 month 6 days
Outstanding Options, Weighted-Average Exercise Price	$ 11.20
Exercisable Options, Shares | shares	684,748
Exercisable Options, Weighted-Average Exercise Price	$ 11.20
Exercise Price Range $20.01-$25.00 [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Lower range limit of Exercise Prices	20.01
Upper range limit of Exercise Prices	$ 25
Outstanding Options, Shares | shares	856,259
Outstanding Options, Weighted-Average Remaining Contractual Life (Years)	1 year 2 months 12 days
Outstanding Options, Weighted-Average Exercise Price	$ 23.84
Exercisable Options, Shares | shares	856,259
Exercisable Options, Weighted-Average Exercise Price	$ 23.84
Exercise Price Range $25.01-$30.00 [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Lower range limit of Exercise Prices	25.01
Upper range limit of Exercise Prices	$ 30
Outstanding Options, Shares | shares	2,711,719
Outstanding Options, Weighted-Average Remaining Contractual Life (Years)	2 years 7 months 6 days
Outstanding Options, Weighted-Average Exercise Price	$ 28.65
Exercisable Options, Shares | shares	2,711,719
Exercisable Options, Weighted-Average Exercise Price	$ 28.65
Exercise Price Range $30.01-$35.00 [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Lower range limit of Exercise Prices	30.01
Upper range limit of Exercise Prices	$ 35
Outstanding Options, Shares | shares	700,487
Outstanding Options, Weighted-Average Remaining Contractual Life (Years)	4 years
Outstanding Options, Weighted-Average Exercise Price	$ 33.98
Exercisable Options, Shares | shares	700,487
Exercisable Options, Weighted-Average Exercise Price	$ 33.98
Exercise Price Range $35.01-$40.00 [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Lower range limit of Exercise Prices	35.01
Upper range limit of Exercise Prices	$ 40
Outstanding Options, Shares | shares	1,415,509
Outstanding Options, Weighted-Average Remaining Contractual Life (Years)	7 years 1 month 6 days
Outstanding Options, Weighted-Average Exercise Price	$ 39.49
Exercisable Options, Shares | shares	669,718
Exercisable Options, Weighted-Average Exercise Price	$ 39.49
Exercise Price Range $40.01-$45.00 [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Lower range limit of Exercise Prices	40.01
Upper range limit of Exercise Prices	$ 45
Outstanding Options, Shares | shares	1,737,831
Outstanding Options, Weighted-Average Remaining Contractual Life (Years)	5 years 7 months 6 days
Outstanding Options, Weighted-Average Exercise Price	$ 42.41
Exercisable Options, Shares | shares	1,490,255
Exercisable Options, Weighted-Average Exercise Price	$ 42.10
Exercise Price Range $45.01-$50.00 [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Lower range limit of Exercise Prices	45.01
Upper range limit of Exercise Prices	50
Exercise Price Range $50.01-$55.01 [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Lower range limit of Exercise Prices	50.01
Upper range limit of Exercise Prices	$ 55.01
Outstanding Options, Shares | shares	1,008,457
Outstanding Options, Weighted-Average Remaining Contractual Life (Years)	8 years 1 month 6 days
Outstanding Options, Weighted-Average Exercise Price	$ 54.97
Exercisable Options, Shares | shares	258,850
Exercisable Options, Weighted-Average Exercise Price	$ 54.97

Stock-Based Compensation - Su_3

Stock-Based Compensation - Summary of Company's Restricted Shares of Stock and Unit Awards (Detail) - $ / shares	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Nonvested Number Of Shares And Weighted Average Grant Date Fair Value [Abstract]
Outstanding at beginning of period, shares	7,446,955	8,265,507	6,894,831
Granted, shares	3,213,023	2,850,927	4,879,421
Vested, shares	(3,373,323)	(3,295,376)	(3,069,035)
Cancelled, shares	(567,357)	(374,103)	(439,710)
Outstanding at end of period, shares	6,719,298	7,446,955	8,265,507
Outstanding at beginning of period, weighted-average grant-date fair value	$ 44.49	$ 39.50	$ 38.44
Granted, weighted-average grant-date fair value	55.03	54.45	39.65
Vested, weighted-average grant-date fair value	46.42	40.66	37.25
Cancelled, weighted-average grant-date fair value	49.07	43.91	40.18
Outstanding at end of period, weighted-average grant-date fair value	$ 48.17	$ 44.49	$ 39.50

Income Taxes - Components of In

Income Taxes - Components of Income Tax Expense (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Federal
Current	$ 1,287	$ 2,086	$ 2,585
Deferred	(148)	(1,180)	(711)
Federal income tax	1,139	906	1,874
State
Current	395	201	337
Deferred	20	157	(50)
State income tax	415	358	287
Applicable income taxes	$ 1,554	$ 1,264	$ 2,161

Income Taxes - Additional Infor

Income Taxes - Additional Information (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Income Taxes Additional Information [Abstract]
Federal statutory rate	21.00%	35.00%	35.00%
Unrecognized tax positions that if recognized would impact the effective tax rate	$ 273	$ 265	$ 234
Unrecognized tax positions as a component of income taxes expense, accrued interest	28
Interest recorded on unrecognized tax positions	(25)	$ 16	$ 7
Federal, state and foreign net operating loss carryforwards	$ 1,900
Income tax returns, years under examination	2011 2012 2015 2016
Base year reserves included in retained earnings of acquired thrift institutions for which no deferred federal income tax liability has been recognized	$ 102
Federal [Member]
Income Taxes Additional Information [Abstract]
Credit carryforwards	$ 2,600
Minimum [Member]
Income Taxes Additional Information [Abstract]
Federal, state and foreign net operating loss carryforwards expiration term	Dec. 31, 2019
Maximum [Member] | Federal [Member]
Income Taxes Additional Information [Abstract]
Credit carryforwards expiration term	Dec. 31, 2038

Income Taxes - Reconciliation o

Income Taxes - Reconciliation of Expected Income Tax Expense at Federal Statutory Rate of 21 Percent and 35 Percent to Company's Applicable Income Tax Expense (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Effective Income Tax Rate Reconciliation, Amount [Abstract]
Tax at statutory rate	$ 1,822	$ 2,631	$ 2,837
State income tax, at statutory rates, net of federal tax benefit	352	281	244
Revaluation of tax related assets and liabilities		(910)
Tax credits and benefits, net of related expenses	(513)	(774)	(710)
Tax-exempt income	(130)	(200)	(196)
Noncontrolling interests	(6)	(12)	(20)
Nondeductible legal and regulatory expenses	52	213	30
Other items	(23)	35	(24)
Applicable income taxes	$ 1,554	$ 1,264	$ 2,161

Income Taxes - Reconciliation_2

Income Taxes - Reconciliation of Expected Income Tax Expense at Federal Statutory Rate of 21 Percent and 35 Percent to Company's Applicable Income Tax Expense (Parenthetical) (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Effective Income Tax Rate Reconciliation, Amount [Abstract]
Corporate tax	21.00%	35.00%	35.00%
Net income tax benefit		$ (910)

Income Taxes - Reconciliation_3

Income Taxes - Reconciliation of Changes in Federal, State and Foreign Unrecognized Tax Position Balances (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Income Tax Uncertainties [Abstract]
Balance at beginning of period	$ 287	$ 302	$ 243
Additions (reductions) for tax positions taken in prior years	93	3	57
Additions for tax positions taken in the current year	10	9	12
Exam resolutions	(51)	(23)	(6)
Statute expirations	(4)	(4)	(4)
Balance at end of period	$ 335	$ 287	$ 302

Income Taxes - Significant Comp

Income Taxes - Significant Components of the Company's Net Deferred Tax Asset (Liability) (Detail) - USD ($) $ in Millions	Dec. 31, 2018	Dec. 31, 2017
Deferred Tax Assets
Federal, state and foreign net operating loss and credit carryforwards	$ 2,699	$ 2,249
Allowance for credit losses	1,141	1,116
Accrued expenses	508	468
Securities available-for-sale and financial instruments	278	111
Pension and postretirement benefits	85
Stock compensation	79	79
Partnerships and other investment assets	69	252
Fixed assets	58
Other deferred tax assets, net	268	215
Gross deferred tax assets	5,185	4,490
Deferred Tax Liabilities
Leasing activities	(2,652)	(2,277)
Goodwill and other intangible assets	(703)	(693)
Mortgage servicing rights	(642)	(604)
Loans	(168)	(160)
Pension and postretirement benefits		(20)
Fixed assets		(4)
Other deferred tax liabilities, net	(102)	(131)
Gross deferred tax liabilities	(4,267)	(3,889)
Valuation allowance	(109)	(128)
Net Deferred Tax Asset (Liability)	$ 809	$ 473

Derivative Instruments - Additi

Derivative Instruments - Additional Information (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Derivative [Line Items]
Realized and unrealized gains (losses) on derivatives classified as cash flow hedges recorded in other comprehensive income (loss)		$ 112	$ 71
Non-derivative debt instruments designated as net investment hedges		1,100	1,200
Fair value of derivatives under collateral agreements in a net liability position		317
Collateral posted by company netted against net liability position		241
Forward commitments to sell mortgage loans		2,300
Hedged mortgage loans held for sale		1,200
Unfunded mortgage loan commitments		1,500
Up Scenario [Member] | Net Sensitivity [Member]
Derivative [Line Items]
Net fair value 25 basis points		(2)	(1)
Net fair value 50 basis points		(6)	(7)
Net fair value 100 basis points		(26)	(34)
Down Scenario [Member] | Net Sensitivity [Member]
Derivative [Line Items]
Net fair value 25 basis points		(1)	(4)
Net fair value 50 basis points		(8)	(15)
Net fair value 100 basis points		$ (46)	$ (67)
Scenario, Forecast [Member]
Derivative [Line Items]
Estimated gain to be reclassified from other comprehensive income (loss) into earnings	$ 74

Derivative Instruments - Asset

Derivative Instruments - Asset and Liability Management Derivative Positions of Company (Detail) - Asset and Liability Management Positions [Member] - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017
Derivative [Line Items]
Notional Value, Assets	$ 27,953	$ 36,579
Fair Value, Assets	155	163
Notional Value, Liabilities	31,679	21,030
Fair Value, Liabilities	125	172
Other Derivatives [Member]
Derivative [Line Items]
Notional Value, Assets	$ 1
Derivative Asset Average Remaining Maturity Period	3 days
Notional Value, Liabilities	$ 1,458	1,164
Fair Value, Liabilities	$ 84	$ 125
Derivative Liability Average Remaining Maturity Period	1 year 6 months	2 years 6 months
Other Economic Hedges [Member] | Interest Rate Contracts [Member] | Receive Fixed/Pay Floating Swaps [Member]
Derivative [Line Items]
Notional Value, Assets	$ 3,605	$ 2,019
Fair Value, Assets		$ 5
Derivative Asset Average Remaining Maturity Period	14 years 9 months 18 days	16 years 5 months 26 days
Notional Value, Liabilities	$ 4,333	$ 5,469
Derivative Liability Average Remaining Maturity Period	6 years 11 months 19 days	8 years 5 months 4 days
Other Economic Hedges [Member] | Interest Rate Contracts [Member] | Pay Fixed/Receive Floating Swaps [Member]
Derivative [Line Items]
Notional Value, Assets	$ 4,333	$ 4,844
Fair Value, Assets		$ 21
Derivative Asset Average Remaining Maturity Period	6 years 11 months 19 days	7 years 8 months 8 days
Notional Value, Liabilities	$ 1,132	$ 46
Fair Value, Liabilities		$ 1
Derivative Liability Average Remaining Maturity Period	7 years 7 months 20 days	6 years 8 months 12 days
Other Economic Hedges [Member] | Interest Rate Contracts [Member] | Futures and Forwards [Member] | Purchased [Member]
Derivative [Line Items]
Notional Value, Assets	$ 2,839	$ 1,632
Fair Value, Assets	$ 27	$ 7
Derivative Asset Average Remaining Maturity Period	25 days	1 month 6 days
Notional Value, Liabilities	$ 1,140	$ 1,326
Fair Value, Liabilities	$ 5	$ 2
Derivative Liability Average Remaining Maturity Period	18 days	14 days
Other Economic Hedges [Member] | Interest Rate Contracts [Member] | Futures and Forwards [Member] | Written [Member]
Derivative [Line Items]
Notional Value, Assets	$ 994	$ 15,291
Fair Value, Assets	$ 3	$ 10
Derivative Asset Average Remaining Maturity Period	21 days	10 months 20 days
Notional Value, Liabilities	$ 13,968	$ 4,511
Fair Value, Liabilities	$ 30	$ 10
Derivative Liability Average Remaining Maturity Period	8 months 19 days	10 days
Other Economic Hedges [Member] | Interest Rate Contracts [Member] | Options [Member] | Purchased [Member]
Derivative [Line Items]
Notional Value, Assets	$ 5,080	$ 4,985
Fair Value, Assets	$ 88	$ 65
Derivative Asset Average Remaining Maturity Period	10 years 9 months 7 days	7 years 6 months 25 days
Other Economic Hedges [Member] | Interest Rate Contracts [Member] | Options [Member] | Written [Member]
Derivative [Line Items]
Notional Value, Assets	$ 584	$ 1,285
Fair Value, Assets	$ 16	$ 21
Derivative Asset Average Remaining Maturity Period	1 month 2 days	1 month 6 days
Notional Value, Liabilities	$ 3	$ 5
Derivative Liability Average Remaining Maturity Period	1 month 2 days	18 days
Other Economic Hedges [Member] | Foreign Exchange Forward Contracts [Member]
Derivative [Line Items]
Notional Value, Assets	$ 549	$ 147
Fair Value, Assets	$ 7	$ 1
Derivative Asset Average Remaining Maturity Period	10 days	7 days
Notional Value, Liabilities	$ 75	$ 669
Fair Value, Liabilities	$ 1	$ 8
Derivative Liability Average Remaining Maturity Period	18 days	14 days
Other Economic Hedges [Member] | Equity Contracts [Member]
Derivative [Line Items]
Notional Value, Assets	$ 19	$ 45
Fair Value, Assets	$ 1
Derivative Asset Average Remaining Maturity Period	9 months 25 days	1 year 1 month 6 days
Notional Value, Liabilities	$ 104	$ 88
Fair Value, Liabilities	$ 2	$ 1
Derivative Liability Average Remaining Maturity Period	5 months 12 days	6 months 29 days
Other Economic Hedges [Member] | Credit Contracts [Member]
Derivative [Line Items]
Notional Value, Assets	$ 2,318	$ 1,559
Derivative Asset Average Remaining Maturity Period	3 years 6 months	3 years 4 months 28 days
Notional Value, Liabilities	$ 4,923	$ 3,779
Fair Value, Liabilities	$ 2	$ 1
Derivative Liability Average Remaining Maturity Period	4 years 14 days	3 years 1 month 28 days
Fair Value Hedges [Member] | Interest Rate Contracts [Member] | Receive Fixed/Pay Floating Swaps [Member]
Derivative [Line Items]
Notional Value, Assets		$ 1,000
Fair Value, Assets		$ 28
Derivative Asset Average Remaining Maturity Period		6 years 8 months 12 days
Notional Value, Liabilities		$ 3,600
Fair Value, Liabilities		$ 16
Derivative Liability Average Remaining Maturity Period		1 year 6 months 18 days
Cash Flow Hedges [Member] | Interest Rate Contracts [Member] | Pay Fixed/Receive Floating Swaps [Member]
Derivative [Line Items]
Notional Value, Assets	$ 7,422	$ 3,772
Fair Value, Assets	$ 8	$ 5
Derivative Asset Average Remaining Maturity Period	3 years 1 month 9 days	6 years 8 months 23 days
Notional Value, Liabilities	$ 4,320
Derivative Liability Average Remaining Maturity Period	1 year 9 months 7 days
Net Investment Hedges [Member] | Foreign Exchange Forward Contracts [Member]
Derivative [Line Items]
Notional Value, Assets	$ 209
Fair Value, Assets	$ 5
Derivative Asset Average Remaining Maturity Period	18 days
Notional Value, Liabilities	$ 223	$ 373
Fair Value, Liabilities	$ 1	$ 8
Derivative Liability Average Remaining Maturity Period	18 days	18 days

Derivative Instruments - Asse_2

Derivative Instruments - Asset and Liability Management Derivative Positions of Company (Parenthetical) (Detail) - Asset and Liability Management Positions [Member] - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017
Derivative [Line Items]
Notional Value, Assets	$ 27,953	$ 36,579
Notional Value, Liabilities	31,679	21,030
Fair Value, Liabilities	125	172
Swap [Member] | Visa Class B Shares [Member]
Derivative [Line Items]
Notional Value, Liabilities	1,500	1,200
Fair Value, Liabilities	$ 84	$ 125
Derivative Liability Average Remaining Maturity Period	1 year 6 months	2 years 6 months
Underwriting Purchase and Sale Commitments [Member]
Derivative [Line Items]
Notional Value, Assets	$ 1
Notional Value, Liabilities	$ 1

Derivative Instruments - Custom

Derivative Instruments - Customer-Related Derivative Positions of Company (Detail) - Customer-Related Positions [Member] - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017
Derivative [Line Items]
Notional Value, Assets	$ 182,021	$ 156,822
Fair Value, Assets	1,855	2,319
Notional Value, Liabilities	183,744	140,485
Fair Value, Liabilities	1,670	2,195
Interest Rate Contracts [Member] | Receive Fixed/Pay Floating Swaps [Member]
Derivative [Line Items]
Notional Value, Assets	44,976	28,681
Fair Value, Assets	$ 755	$ 679
Derivative Asset Average Remaining Maturity Period	6 years 5 months 26 days	5 years 8 months 15 days
Notional Value, Liabilities	$ 62,597	$ 59,990
Fair Value, Liabilities	$ 456	$ 840
Derivative Liability Average Remaining Maturity Period	4 years 3 months 10 days	4 years 3 months 7 days
Interest Rate Contracts [Member] | Pay Fixed/Receive Floating Swaps [Member]
Derivative [Line Items]
Notional Value, Assets	$ 63,825	$ 63,038
Fair Value, Assets	$ 289	$ 860
Derivative Asset Average Remaining Maturity Period	4 years 25 days	4 years 2 months 12 days
Notional Value, Liabilities	$ 45,129	$ 25,093
Fair Value, Liabilities	$ 422	$ 602
Derivative Liability Average Remaining Maturity Period	6 years 1 month 28 days	5 years 9 months 3 days
Interest Rate Contracts [Member] | Options [Member] | Purchased [Member]
Derivative [Line Items]
Notional Value, Assets	$ 41,711	$ 29,091
Fair Value, Assets	$ 51	$ 22
Derivative Asset Average Remaining Maturity Period	1 year 6 months 14 days	1 year 7 months 9 days
Notional Value, Liabilities	$ 1,940	$ 880
Fair Value, Liabilities	$ 30	$ 14
Derivative Liability Average Remaining Maturity Period	1 year 11 months 23 days	4 years 2 months 26 days
Interest Rate Contracts [Member] | Options [Member] | Written [Member]
Derivative [Line Items]
Notional Value, Assets	$ 2,060	$ 880
Fair Value, Assets	$ 32	$ 15
Derivative Asset Average Remaining Maturity Period	2 years 25 days	4 years 2 months 26 days
Notional Value, Liabilities	$ 39,538	$ 27,056
Fair Value, Liabilities	$ 51	$ 20
Derivative Liability Average Remaining Maturity Period	1 year 5 months 8 days	1 year 6 months
Interest Rate Contracts [Member] | Futures [Member] | Purchased [Member]
Derivative [Line Items]
Notional Value, Assets	$ 460
Derivative Asset Average Remaining Maturity Period	1 year 6 months 29 days
Interest Rate Contracts [Member] | Futures [Member] | Written [Member]
Derivative [Line Items]
Notional Value, Assets		$ 7,007
Fair Value, Assets		$ 4
Derivative Asset Average Remaining Maturity Period		1 year 2 months 15 days
Notional Value, Liabilities	$ 6,190
Fair Value, Liabilities	$ 1
Derivative Liability Average Remaining Maturity Period	7 months 2 days
Foreign Exchange Rate Contracts [Member] | Forwards, Spots and Swaps [Member]
Derivative [Line Items]
Notional Value, Assets	$ 26,210	$ 24,099
Fair Value, Assets	$ 681	$ 656
Derivative Asset Average Remaining Maturity Period	10 months 28 days	9 months 21 days
Notional Value, Liabilities	$ 25,571	$ 23,440
Fair Value, Liabilities	$ 663	$ 636
Derivative Liability Average Remaining Maturity Period	10 months 17 days	9 months 29 days
Foreign Exchange Option [Member] | Purchased [Member]
Derivative [Line Items]
Notional Value, Assets	$ 2,779	$ 4,026
Fair Value, Assets	$ 47	$ 83
Derivative Asset Average Remaining Maturity Period	9 months	1 year 2 months 12 days
Foreign Exchange Option [Member] | Written [Member]
Derivative [Line Items]
Notional Value, Liabilities	$ 2,779	$ 4,026
Fair Value, Liabilities	$ 47	$ 83
Derivative Liability Average Remaining Maturity Period	9 months	1 year 2 months 12 days

Derivative Instruments - Summar

Derivative Instruments - Summary of Effective Portion of Gains (Losses) Recognized in Other Comprehensive Income (Loss) and Gains (Losses) Reclassified from Other Comprehensive Income (Loss) into Earnings (Detail) - Asset and Liability Management Positions [Member] - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Cash Flow Hedges [Member] | Interest Rate Contracts [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Derivative Instruments, Gain (Losses) Recognized in Other Comprehensive Income (Loss), Effective Portion, Net	$ 29	$ (3)	$ 46
Derivative Instruments, Gains (Losses) Reclassified from Other Comprehensive Income (Loss) into Earnings	3	(19)	(76)
Net Investment Hedges [Member] | Foreign Exchange Forward Contracts [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Derivative Instruments, Gain (Losses) Recognized in Other Comprehensive Income (Loss), Effective Portion, Net	39	(56)	$ 33
Net Investment Hedges [Member] | Non Derivative Debt Instruments [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Derivative Instruments, Gain (Losses) Recognized in Other Comprehensive Income (Loss), Effective Portion, Net	$ 32	$ (46)

Derivative Instruments - Effect

Derivative Instruments - Effect of Fair Value and Cash Flow Hedge Accounting on Consolidated Statement of Income (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Other Noninterest Income [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Total amount of income line items presented in the Consolidated Statement of Income in which the effects of fair value or cash flow hedges are recorded	$ 910	$ 774	$ 911
Other Noninterest Income [Member] | Asset and Liability Management Positions [Member] | Fair Value Hedges [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Gains (Losses) Recognized in Earnings related to fair value hedged item		28	31
Other Noninterest Income [Member] | Asset and Liability Management Positions [Member] | Fair Value Hedges [Member] | Interest Rate Contracts [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Gains (Losses) Recognized in Earnings related to fair value hedge		(28)	(31)
Interest Expense [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Total amount of expense line items presented in the Consolidated Statement of Income in which the effects of fair value or cash flow hedges are recorded	3,254	1,966	1,468
Interest Expense [Member] | Asset and Liability Management Positions [Member] | Fair Value Hedges [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Gains (Losses) Recognized in Earnings related to fair value hedged item	(5)
Interest Expense [Member] | Asset and Liability Management Positions [Member] | Fair Value Hedges [Member] | Interest Rate Contracts [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Gains (Losses) Recognized in Earnings related to fair value hedge	5
Interest Expense [Member] | Asset and Liability Management Positions [Member] | Cash Flow Hedges [Member] | Interest Rate Contracts [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Gains (Losses) Recognized in Earnings related to cash flow hedge	$ (5)	$ 30	$ 124

Derivative Instruments - Summ_2

Derivative Instruments - Summary of Cumulative Hedging Adjustments and the Carrying Amount of Assets (Liabilities) Designated in Fair Value Hedges (Detail) - Fair Value Hedges [Member] - Long-term Debt Securities [Member] - USD ($) $ in Millions	Dec. 31, 2018	Dec. 31, 2017
Derivative Instruments, Gain (Loss) [Line Items]
Carrying amount of the hedged assets (liabilities), Long-term debt		$ 4,584
Cumulative hedging Adjustment included in the carrying amount of the hedged assets (liabilities)	$ (27)	$ (8)

Derivative Instruments - Summ_3

Derivative Instruments - Summary of Gains (Losses) Recognized in Earnings for Other Economic Hedges and Customer-Related Positions (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Customer-Related Positions [Member] | Interest Rate Contracts [Member] | Commercial Products Revenue [Member] | Options [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Gains (losses) recognized in earnings	$ 2	$ (24)	$ (5)
Customer-Related Positions [Member] | Interest Rate Contracts [Member] | Commercial Products Revenue [Member] | Receive Fixed/Pay Floating Swaps [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Gains (losses) recognized in earnings	(192)	(876)	(708)
Customer-Related Positions [Member] | Interest Rate Contracts [Member] | Commercial Products Revenue [Member] | Pay Fixed/Receive Floating Swaps [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Gains (losses) recognized in earnings	239	943	769
Customer-Related Positions [Member] | Interest Rate Contracts [Member] | Commercial Products Revenue [Member] | Futures [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Gains (losses) recognized in earnings	9	(3)	(6)
Customer-Related Positions [Member] | Foreign Exchange Rate Contracts [Member] | Commercial Products Revenue [Member] | Forwards, Spots and Swaps [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Gains (losses) recognized in earnings	84	92	88
Customer-Related Positions [Member] | Foreign Exchange Option [Member] | Commercial Products Revenue [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Gains (losses) recognized in earnings		2	(1)
Asset and Liability Management Positions [Member] | Other Economic Hedges [Member] | Interest Rate Contracts [Member] | Mortgage Banking Revenue [Member] | Futures and Forwards [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Gains (losses) recognized in earnings	110	24	101
Asset and Liability Management Positions [Member] | Other Economic Hedges [Member] | Interest Rate Contracts [Member] | Mortgage Banking Revenue [Member] | Options [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Gains (losses) recognized in earnings	188	237	331
Asset and Liability Management Positions [Member] | Other Economic Hedges [Member] | Interest Rate Contracts [Member] | Mortgage Banking Revenue [Member] | Receive Fixed/Pay Floating Swaps [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Gains (losses) recognized in earnings	61	255	226
Asset and Liability Management Positions [Member] | Other Economic Hedges [Member] | Interest Rate Contracts [Member] | Mortgage Banking Revenue [Member] | Pay Fixed/Receive Floating Swaps [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Gains (losses) recognized in earnings	(172)	(220)	(140)
Asset and Liability Management Positions [Member] | Other Economic Hedges [Member] | Foreign Exchange Forward Contracts [Member] | Other Noninterest Income [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Gains (losses) recognized in earnings	39	(69)	(14)
Asset and Liability Management Positions [Member] | Other Economic Hedges [Member] | Equity Contracts [Member] | Compensation Expense [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Gains (losses) recognized in earnings	(4)	1	1
Asset and Liability Management Positions [Member] | Other Economic Hedges [Member] | Credit Contracts [Member] | Other Noninterest Income [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Gains (losses) recognized in earnings	2	3	1
Asset and Liability Management Positions [Member] | Other Economic Hedges [Member] | Other Derivatives [Member] | Other Noninterest Income [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Gains (losses) recognized in earnings	$ 2	$ (1)	$ (39)

Netting Arrangements for Cert_3

Netting Arrangements for Certain Financial Instruments and Securities Financing Activities - Additional Information (Detail) $ in Billions	Dec. 31, 2018USD ($)
Derivative [Line Items]
Notional amount of derivative	$ 425.4
Over the Counter Trades [Member]
Derivative [Line Items]
Notional amount of derivative	226.6
Exchange Cleared [Member]
Derivative [Line Items]
Notional amount of derivative	181.2
Exchange Traded [Member]
Derivative [Line Items]
Notional amount of derivative	$ 17.6

Netting Arrangements for Cert_4

Netting Arrangements for Certain Financial Instruments and Securities Financing Activities - Summary of Maturities by Category of Collateral Pledged for Repurchase Agreements and Securities Loaned Transactions (Detail) - USD ($) $ in Millions	Dec. 31, 2018	Dec. 31, 2017
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items]
Repurchase agreements	$ 2,594	$ 803
Securities loaned	227	111
Gross amount of recognized liabilities for repurchase agreements and securities loaned	2,821	914
Overnight and Continuous [Member]
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items]
Repurchase agreements	1,179	773
Securities loaned	227	111
Gross amount of recognized liabilities for repurchase agreements and securities loaned	1,406	884
Less Than 30 Days [Member]
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items]
Repurchase agreements		30
Gross amount of recognized liabilities for repurchase agreements and securities loaned		30
30-89 Days [Member]
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items]
Repurchase agreements	945
Gross amount of recognized liabilities for repurchase agreements and securities loaned	945
Greater than 90 Days [Member]
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items]
Repurchase agreements	470
Gross amount of recognized liabilities for repurchase agreements and securities loaned	470
U.S. Treasury and Agencies [Member]
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items]
Repurchase agreements	134	25
U.S. Treasury and Agencies [Member] | Overnight and Continuous [Member]
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items]
Repurchase agreements	134	25
Residential Mortgage-Backed Securities [Member] | Agency [Member]
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items]
Repurchase agreements	1,980	674
Residential Mortgage-Backed Securities [Member] | Overnight and Continuous [Member] | Agency [Member]
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items]
Repurchase agreements	565	644
Residential Mortgage-Backed Securities [Member] | Less Than 30 Days [Member] | Agency [Member]
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items]
Repurchase agreements		30
Residential Mortgage-Backed Securities [Member] | 30-89 Days [Member] | Agency [Member]
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items]
Repurchase agreements	945
Residential Mortgage-Backed Securities [Member] | Greater than 90 Days [Member] | Agency [Member]
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items]
Repurchase agreements	470
Corporate Debt Securities [Member]
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items]
Repurchase agreements	480	104
Securities loaned	227	111
Corporate Debt Securities [Member] | Overnight and Continuous [Member]
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items]
Repurchase agreements	480	104
Securities loaned	$ 227	$ 111

Netting Arrangements for Cert_5

Netting Arrangements for Certain Financial Instruments and Securities Financing Activities - Information on Company's Accounting Netting Adjustments and Items Not Offset in Consolidated Balance Sheet Assets But Available for Offset in Event of Default (Detail) - USD ($) $ in Millions	Dec. 31, 2018	Dec. 31, 2017
Offsetting [Abstract]
Derivative assets Gross Recognized Assets	$ 1,987	$ 1,759
Reverse repurchase agreements Gross Recognized Assets	205	24
Securities borrowed Gross Recognized Assets	1,069	923
Total Gross Recognized Assets	3,261	2,706
Derivative assets Gross amounts assets offset in consolidated balance sheet	(942)	(652)
Total Gross amounts assets offset in consolidated balance sheet	(942)	(652)
Derivative assets Net Amounts Presented in the Consolidated Balance Sheet	1,045	1,107
Reverse repurchase agreements Net Amounts Presented in the Consolidated Balance Sheet	205	24
Securities borrowed Net Amounts Presented in the Consolidated Balance Sheet	1,069	923
Total Net Amounts Presented in the Consolidated Balance Sheet	2,319	2,054
Derivative assets Gross financial instrument asset amounts not offset in consolidated balance sheet	(106)	(110)
Reverse repurchase agreements Gross financial instrument asset amounts not offset in consolidated balance sheet	(114)	(24)
Securities borrowed Gross financial instrument asset amounts not offset in consolidated balance sheet	0	0
Total Gross financial instrument asset amounts not offset in consolidated balance sheet	(220)	(134)
Derivative assets Gross collateral received amounts not offset in consolidated balance sheet	(16)	(5)
Reverse repurchase agreements Gross collateral received amounts not offset in consolidated balance sheet	(91)
Securities borrowed Gross collateral received amounts not offset in consolidated balance sheet	(1,039)	(896)
Total Gross collateral received amounts not offset in consolidated balance sheet	(1,146)	(901)
Derivative assets Net Amount	923	992
Reverse repurchase agreements Net Amount	0	0
Securities borrowed Net Amount	30	27
Total Net Amount Assets	$ 953	$ 1,019

Netting Arrangements for Cert_6

Netting Arrangements for Certain Financial Instruments and Securities Financing Activities - Information on Company's Accounting Netting Adjustments and Items Not Offset in Consolidated Balance Sheet Assets But Available for Offset in Event of Default (Parenthetical) (Detail) - USD ($) $ in Millions	Dec. 31, 2018	Dec. 31, 2017
Offsetting [Abstract]
Cash collateral netted against derivative assets	$ 236	$ 50
Derivative assets not subject to netting arrangements	$ 23	$ 723

Netting Arrangements for Cert_7

Netting Arrangements for Certain Financial Instruments and Securities Financing Activities - Information on Company's Accounting Netting Adjustments and Items Not Offset in Consolidated Balance Sheet Liabilities But Available for Offset in Event of Default (Detail) - USD ($) $ in Millions	Dec. 31, 2018	Dec. 31, 2017
Offsetting [Abstract]
Derivative liabilities Gross recognized liabilities	$ 1,710	$ 1,629
Repurchase agreements Gross recognized liabilities	2,594	803
Securities loaned Gross recognized liabilities	227	111
Total Gross recognized liabilities	4,531	2,543
Derivative liabilities Gross amounts liabilities offset in consolidated balance sheet	(946)	(1,130)
Total Gross amounts liabilities offset in consolidated balance sheet	(946)	(1,130)
Derivative liabilities Net amounts liabilities presented in consolidated balance sheet	764	499
Repurchase agreements Net amounts liabilities presented in consolidated balance sheet	2,594	803
Securities loaned Net amounts liabilities presented in consolidated balance sheet	227	111
Total Net amounts liabilities presented in consolidated balance sheet	3,585	1,413
Derivative liabilities Gross financial instrument liability amounts not offset in consolidated balance sheet	(106)	(110)
Repurchase agreements Gross financial instrument liability amounts not offset in consolidated balance sheet	(114)	(24)
Securities loaned Gross financial instruments not offset in consolidated balance sheet	0	0
Total Gross financial instrument liability amounts not offset in consolidated balance sheet	(220)	(134)
Repurchase agreements Gross collateral pledged amounts not offset in consolidated balance sheet	(2,480)	(779)
Securities loaned Gross collateral pledged amounts not offset in consolidated balance sheet	(224)	(110)
Total Gross collateral pledged amounts not offset in consolidated balance sheet	(2,704)	(889)
Derivative liabilities Net Amount	658	389
Repurchase agreements Net Amount	0	0
Securities loaned Net Amount	3	1
Total Net Amount Liabilities	$ 661	$ 390

Netting Arrangements for Cert_8

Netting Arrangements for Certain Financial Instruments and Securities Financing Activities - Information on Company's Accounting Netting Adjustments and Items Not Offset in Consolidated Balance Sheet Liabilities But Available for Offset in Event of Default (Parenthetical) (Detail) - USD ($) $ in Millions	Dec. 31, 2018	Dec. 31, 2017
Offsetting [Abstract]
Cash collateral netted against derivative liabilities	$ 240	$ 528
Derivative liabilities not subject to netting arrangements	$ 85	$ 738

Fair Values of Assets and Lia_3

Fair Values of Assets and Liabilities - Additional Information (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Fair Value Disclosures [Abstract]
Mortgage loans held for sale measured at fair value, net gain (loss)	$ 60	$ 84	$ 33
Carrying value of unfunded commitments, deferred non-yield related loan fees and standby letters of credit	532	555
Other guarantees carrying value	$ 263	$ 192
Minimum [Member]
Fair Value Disclosures [Abstract]
Assumed credit valuation adjustment as percentage of derivative contract fair value	0.00%
Maximum [Member]
Fair Value Disclosures [Abstract]
Assumed credit valuation adjustment as percentage of derivative contract fair value	92.00%
Weighted Average [Member]
Fair Value Disclosures [Abstract]
Assumed credit valuation adjustment as percentage of derivative contract fair value	1.00%

Fair Values of Assets and Lia_4

Fair Values of Assets and Liabilities - Valuation Assumption Ranges for MSRs (Detail) - Mortgage Servicing Rights [Member]	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Expected prepayment	9.50%	10.00%
Minimum [Member]
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Expected prepayment	7.00%
Option adjusted spread	7.00%
Maximum [Member]
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Expected prepayment	17.00%
Option adjusted spread	10.00%
Weighted Average [Member]
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Expected prepayment	10.00%
Option adjusted spread	8.00%

Fair Values of Assets and Lia_5

Fair Values of Assets and Liabilities - Valuation Assumption Ranges for Derivative Commitments (Detail) - Derivative Mortgage Loans Commitments [Member]	Dec. 31, 2018
Minimum [Member]
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Expected loan close rate	4.00%
Inherent MSR value (basis points per loan)	39.00%
Maximum [Member]
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Expected loan close rate	100.00%
Inherent MSR value (basis points per loan)	206.00%
Weighted Average [Member]
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Expected loan close rate	78.00%
Inherent MSR value (basis points per loan)	115.00%

Fair Values of Assets and Lia_6

Fair Values of Assets and Liabilities - Balances of Assets and Liabilities Measured at Fair Value on Recurring Basis (Detail) - USD ($) $ in Millions		Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative liabilities netting		$ (946)	$ (1,130)
Derivative assets netting		(942)	(652)
Available-for-sale securities	[1]	66,115	68,137
Mortgage loans held for sale		2,035	3,534
Mortgage servicing rights		2,791	2,645	$ 2,591	$ 2,512
Residential Mortgage-Backed Securities [Member] | Agency [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities		39,752	38,031
Commercial [Member] | Agency [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities		2	6
Asset-Backed Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities		403
Asset-Backed Securities [Member] | Other Asset-Backed Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities		403	419
Fair Value, Measurements, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative liabilities total		849	1,237
Derivative assets total		1,068	1,830
Available-for-sale securities		66,115	68,137
Mortgage loans held for sale		2,035	3,534
Mortgage servicing rights		2,791	2,645
Other assets		1,665	1,317
Total		73,674	77,463
Short-term borrowings and other liabilities		1,218	995
Total		2,067	2,232
Fair Value, Measurements, Recurring [Member] | Netting and Collateral One [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative liabilities netting		(946)	(1,130)
Derivative assets netting		(942)	(652)
Total		(942)	(652)
Total		(946)	(1,130)
Fair Value, Measurements, Recurring [Member] | U.S. Treasury and Agencies [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities		19,257	23,301
Fair Value, Measurements, Recurring [Member] | Obligations of State and Political Subdivisions [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities		6,701	6,358
Fair Value, Measurements, Recurring [Member] | Other [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities			22
Fair Value, Measurements, Recurring [Member] | Residential Mortgage-Backed Securities [Member] | Agency [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities		39,752	38,031
Fair Value, Measurements, Recurring [Member] | Commercial [Member] | Agency [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities		2	6
Fair Value, Measurements, Recurring [Member] | Asset-Backed Securities [Member] | Other Asset-Backed Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities		403	419
Level 1 [Member] | Fair Value, Measurements, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative liabilities before netting		1
Derivative assets before netting			6
Available-for-sale securities		18,585	22,594
Other assets		392	154
Total		18,977	22,754
Short-term borrowings and other liabilities		199	101
Total		200	101
Level 1 [Member] | Fair Value, Measurements, Recurring [Member] | U.S. Treasury and Agencies [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities		18,585	22,572
Level 1 [Member] | Fair Value, Measurements, Recurring [Member] | Other [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities			22
Level 2 [Member] | Fair Value, Measurements, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative liabilities before netting		1,291	1,958
Derivative assets before netting		1,427	1,960
Available-for-sale securities		47,530	45,543
Mortgage loans held for sale		2,035	3,534
Other assets		1,273	1,163
Total		52,265	52,200
Short-term borrowings and other liabilities		1,019	894
Total		2,310	2,852
Level 2 [Member] | Fair Value, Measurements, Recurring [Member] | U.S. Treasury and Agencies [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities		672	729
Level 2 [Member] | Fair Value, Measurements, Recurring [Member] | Obligations of State and Political Subdivisions [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities		6,701	6,358
Level 2 [Member] | Fair Value, Measurements, Recurring [Member] | Residential Mortgage-Backed Securities [Member] | Agency [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities		39,752	38,031
Level 2 [Member] | Fair Value, Measurements, Recurring [Member] | Commercial [Member] | Agency [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities		2	6
Level 2 [Member] | Fair Value, Measurements, Recurring [Member] | Asset-Backed Securities [Member] | Other Asset-Backed Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities		403	419
Level 3 [Member] | Fair Value, Measurements, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative liabilities before netting		503	409
Derivative assets before netting		583	516
Mortgage servicing rights		2,791	2,645
Total		3,374	3,161
Total		$ 503	$ 409
[1]	Includes only collateral pledged by the Company where counterparties have the right to sell or pledge the collateral.

Fair Values of Assets and Lia_7

Fair Values of Assets and Liabilities - Balances of Assets and Liabilities Measured at Fair Value on Recurring Basis (Parenthetical) (Detail) $ in Millions	Dec. 31, 2018USD ($)
Fair Value Disclosures [Abstract]
Equity investments without readily determinable fair values	$ 86

Fair Values of Assets and Lia_8

Fair Values of Assets and Liabilities - Changes in Fair Value for All Assets and Liabilities Measured at Fair Value on Recurring Basis Using Significant Unobservable Inputs (Level 3) (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Mortgage Servicing Rights [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Beginning of Period Balance	$ 2,645	$ 2,591	$ 2,512
Net Gains (Losses) Included in Net Income	(232)	(404)	(488)
Purchases	8	13	43
Sales	(27)
Issuances	397	445	524
Settlements	0	0	0
End of Period Balance	2,791	2,645	2,591
Net Change in Unrealized Gains (Losses) Relating to Assets and Liabilities Held at End of Period	(232)	(404)	(488)
Corporate Debt Securities [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Beginning of Period Balance		9	9
Net Gains (Losses) Included in Other Comprehensive Income (Loss)		2
Sales		(11)
Settlements		0	0
End of Period Balance			9
Available-for-Sale Securities [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Beginning of Period Balance		448	569
Net Gains (Losses) Included in Net Income			(2)
Net Gains (Losses) Included in Other Comprehensive Income (Loss)		(17)	(2)
Sales		(422)
Principal Payments		(9)	(117)
Settlements		0	0
End of Period Balance			448
Net Change in Unrealized Gains (Losses) Relating to Assets and Liabilities Held at End of Period			(2)
Derivative [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Beginning of Period Balance	107	171	498
Net Gains (Losses) Included in Net Income	21	317	332
Net Gains (Losses) Included in Other Comprehensive Income (Loss)	0	0	0
Purchases	13	1	2
Sales	(41)	(10)	(14)
Principal Payments	0	0	0
Issuances	0	0	0
Settlements	(20)	(372)	(647)
End of Period Balance	80	107	171
Net Change in Unrealized Gains (Losses) Relating to Assets and Liabilities Held at End of Period	$ 34	(52)	(257)
Residential Mortgage-Backed Securities [Member] | Non-Agency Prime [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Beginning of Period Balance		242	318
Net Gains (Losses) Included in Net Income			(1)
Net Gains (Losses) Included in Other Comprehensive Income (Loss)		(2)
Sales		(234)
Principal Payments		(6)	(75)
Settlements		0	0
End of Period Balance			242
Residential Mortgage-Backed Securities [Member] | Non-Agency Non-Prime [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Beginning of Period Balance		195	240
Net Gains (Losses) Included in Net Income			(1)
Net Gains (Losses) Included in Other Comprehensive Income (Loss)		(17)	(2)
Sales		(175)
Principal Payments		(3)	(42)
Settlements		0	0
End of Period Balance			195
Net Change in Unrealized Gains (Losses) Relating to Assets and Liabilities Held at End of Period			(2)
Asset-Backed Securities [Member] | Other Asset-Backed Securities [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Beginning of Period Balance		2	2
Sales		(2)
Settlements		$ 0	0
End of Period Balance			$ 2

Fair Values of Assets and Lia_9

Fair Values of Assets and Liabilities - Changes in Fair Value for All Assets and Liabilities Measured at Fair Value on Recurring Basis Using Significant Unobservable Inputs (Level 3) (Parenthetical) (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Other Noninterest Income [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Net gains and (losses) on net derivative assets and liabilities included in net income	$ (139)	$ 21	$ (77)
Net Change in net derivative asset and liability unrealized gains (losses) relating to assets still held at end of period	14	(77)	(276)
Mortgage Banking Revenue [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Net gains and (losses) on net derivative assets and liabilities included in net income	160	296	409
Net Change in net derivative asset and liability unrealized gains (losses) relating to assets still held at end of period	$ 20	$ 25	19
Securities Gains Losses [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Net gains and losses on available for sale securities included in net income			(3)
Interest Income [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Net gains and losses on available for sale securities included in net income			$ 1

Fair Values of Assets and Li_10

Fair Values of Assets and Liabilities - Adjusted Carrying Values for Assets Measured at Fair Value on Nonrecurring Basis (Detail) - Fair Value, Measurements, Nonrecurring [Member] - USD ($) $ in Millions	Dec. 31, 2018	Dec. 31, 2017
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans	$ 40	$ 150
Other assets	57	31
Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans	40	150
Other assets	$ 57	$ 31

Fair Values of Assets and Li_11

Fair Values of Assets and Liabilities - Losses Recognized Related to Nonrecurring Fair Value Measurements of Individual Assets or Portfolios (Detail) - Fair Value, Measurements, Nonrecurring [Member] - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Loans Receivable [Member]
Fair Value Assets Measured On Nonrecurring Basis Losses Recognized [Line Items]
Losses recognized related to nonrecurring fair value measurements	$ 83	$ 171	$ 192
Other Assets [Member]
Fair Value Assets Measured On Nonrecurring Basis Losses Recognized [Line Items]
Losses recognized related to nonrecurring fair value measurements	$ 26	$ 20	$ 32

Fair Values of Assets and Li_12

Fair Values of Assets and Liabilities - Differences Between Aggregate Fair Value Carrying Amount of MLHFS for which Fair Value Option has been Elected and Aggregate Unpaid Principal Amount Contractually Obligated to Receive at Maturity (Detail) - USD ($) $ in Millions	Dec. 31, 2018	Dec. 31, 2017
Fair Value Disclosures [Abstract]
Fair value carrying amount, total loans	$ 2,035	$ 3,534
Fair value carrying amount, nonaccrual loans	2	1
Fair value carrying amount, loans 90 days or more past due		1
Aggregate unpaid principal, total loans	1,972	3,434
Aggregate unpaid principal, nonaccrual loans	2	2
Aggregate unpaid principal, loans 90 days or more past due		1
Carrying amount over (under) unpaid principal, total loans	63	100
Carrying amount over (under) unpaid principal, nonaccrual loans		(1)
Carrying amount over (under) unpaid principal, loans 90 days or more past due	$ 0	$ 0

Fair Values of Assets and Li_13

Fair Values of Assets and Liabilities - Estimated Fair Values of Financial Instruments (Detail) - USD ($) $ in Millions	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Financial Assets
Cash and due from banks	$ 21,453	$ 19,505	$ 15,705	$ 11,147
Investment securities held-to-maturity	46,050	44,362
Loans	282,837	276,507
Financial Liabilities
Time deposits	44,554	33,356
Long-term debt	41,340	32,259
Carrying Amount [Member]
Financial Assets
Cash and due from banks	21,453	19,505
Federal funds sold and securities purchased under resale agreements	306	93
Investment securities held-to-maturity	46,050	44,362
Loans held for sale	21	20
Loans	282,837	276,507
Other	2,412	2,393
Financial Liabilities
Time deposits	44,554	33,356
Short-term borrowings	12,921	15,656
Long-term debt	41,340	32,259
Other	1,726	1,556
Fair Value [Member]
Financial Assets
Cash and due from banks	21,453	19,505
Federal funds sold and securities purchased under resale agreements	306	93
Investment securities held-to-maturity	44,964	43,723
Loans held for sale	21	20
Loans	284,790	279,391
Other	2,412	2,401
Financial Liabilities
Time deposits	44,140	33,120
Short-term borrowings	12,678	15,447
Long-term debt	41,003	32,377
Other	1,726	1,556
Fair Value [Member] | Level 1 [Member]
Financial Assets
Cash and due from banks	21,453	19,505
Investment securities held-to-maturity	4,594	4,613
Fair Value [Member] | Level 2 [Member]
Financial Assets
Federal funds sold and securities purchased under resale agreements	306	93
Investment securities held-to-maturity	40,359	39,095
Other	1,241	1,037
Financial Liabilities
Time deposits	44,140	33,120
Short-term borrowings	12,678	15,447
Long-term debt	41,003	32,377
Fair Value [Member] | Level 3 [Member]
Financial Assets
Investment securities held-to-maturity	11	15
Loans held for sale	21	20
Loans	284,790	279,391
Other	1,171	1,364
Financial Liabilities
Other	$ 1,726	$ 1,556

Guarantees and Contingent Lia_3

Guarantees and Contingent Liabilities - Additional Information (Detail) - USD ($) shares in Millions, $ in Millions	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Guarantees And Contingent Liabilities (Textual) [Abstract]
Rental expense for operating leases	$ 351	$ 338	$ 326
Securities Lending Indemnifications [Member]
Guarantees And Contingent Liabilities (Textual) [Abstract]
Maximum Potential Future Payments	3,600
Collateral Held	3,666
Tender Option Bond Program Guarantee [Member]
Guarantees And Contingent Liabilities (Textual) [Abstract]
Maximum Potential Future Payments	2,332
Collateral Held	2,399
Minimum Revenue Guarantees [Member]
Guarantees And Contingent Liabilities (Textual) [Abstract]
Maximum Potential Future Payments	4
Standby Letters of Credit [Member]
Guarantees And Contingent Liabilities (Textual) [Abstract]
Maximum Potential Future Payments	$ 11,305
Weighted-average term of standby letter of credit arrangements	20 months
Carrying Amount	$ 54
Third Party Borrowing Arrangements [Member]
Guarantees And Contingent Liabilities (Textual) [Abstract]
Maximum Potential Future Payments	7
Asset Sales [Member]
Guarantees And Contingent Liabilities (Textual) [Abstract]
Maximum Potential Future Payments	7,508
Carrying Amount	117
Merchant Processing [Member]
Guarantees And Contingent Liabilities (Textual) [Abstract]
Maximum Potential Future Payments	103,273
Carrying Amount	47
Collateral Held	647
Representation and Warranty [Member]
Guarantees And Contingent Liabilities (Textual) [Abstract]
Carrying Amount	10	13
Unresolved representation and warranty claims from GSEs	15	$ 9
Airline Processing Arrangements [Member]
Guarantees And Contingent Liabilities (Textual) [Abstract]
Value of airline tickets purchased to deliver at future date through card transactions	7,100
Tax Advantaged Investments Sales [Member]
Guarantees And Contingent Liabilities (Textual) [Abstract]
Carrying Amount	126
Unresolved Merchant Charge-backs [Member]
Guarantees And Contingent Liabilities (Textual) [Abstract]
Carrying Amount	12
Collateral Held	174
Escrow Deposits Letters of Credit Indemnities [Member] | Airline Processing Arrangements [Member]
Guarantees And Contingent Liabilities (Textual) [Abstract]
Collateral Held	473
Merchant Escrow Deposits [Member] | Airline Processing Arrangements [Member]
Guarantees And Contingent Liabilities (Textual) [Abstract]
Collateral Held	35
Wholly Owned Unconsolidated Trust [Member]
Guarantees And Contingent Liabilities (Textual) [Abstract]
Maximum Potential Future Payments	$ 681
Percentage of common equity in wholly owned USB Capital IX	100.00%
Total assets of trust consisting primarily of Series A Preferred Stock	$ 682
Subsidiaries Financial Performance [Member]
Guarantees And Contingent Liabilities (Textual) [Abstract]
Maximum Potential Future Payments	$ 687
Visa Class B Shares [Member]
Guarantees And Contingent Liabilities (Textual) [Abstract]
Number of shares sold	1.4
Remaining shares held by the Company	1.3

Guarantees and Contingent Lia_4

Guarantees and Contingent Liabilities - Contract or Notional Amounts of Unfunded Commitments to Extend Credit (Detail) $ in Millions	Dec. 31, 2018USD ($)
Commercial and Commercial Real Estate Loans [Member]
Other Commitments [Line Items]
Contract or notional amounts of unfunded commitments to extend credit	$ 132,491
Corporate and Purchasing Card Loans [Member]
Other Commitments [Line Items]
Contract or notional amounts of unfunded commitments to extend credit	26,931
Residential Mortgages [Member]
Other Commitments [Line Items]
Contract or notional amounts of unfunded commitments to extend credit	214
Credit Card [Member]
Other Commitments [Line Items]
Contract or notional amounts of unfunded commitments to extend credit	110,707
Other Retail Loans [Member]
Other Commitments [Line Items]
Contract or notional amounts of unfunded commitments to extend credit	37,757
Other [Member]
Other Commitments [Line Items]
Contract or notional amounts of unfunded commitments to extend credit	6,229
Less Than One Year [Member] | Commercial and Commercial Real Estate Loans [Member]
Other Commitments [Line Items]
Contract or notional amounts of unfunded commitments to extend credit	30,516
Less Than One Year [Member] | Corporate and Purchasing Card Loans [Member]
Other Commitments [Line Items]
Contract or notional amounts of unfunded commitments to extend credit	26,391
Less Than One Year [Member] | Residential Mortgages [Member]
Other Commitments [Line Items]
Contract or notional amounts of unfunded commitments to extend credit	211
Less Than One Year [Member] | Credit Card [Member]
Other Commitments [Line Items]
Contract or notional amounts of unfunded commitments to extend credit	110,707
Less Than One Year [Member] | Other Retail Loans [Member]
Other Commitments [Line Items]
Contract or notional amounts of unfunded commitments to extend credit	13,634
Less Than One Year [Member] | Other [Member]
Other Commitments [Line Items]
Contract or notional amounts of unfunded commitments to extend credit	6,229
Greater Than One Year [Member] | Commercial and Commercial Real Estate Loans [Member]
Other Commitments [Line Items]
Contract or notional amounts of unfunded commitments to extend credit	101,975
Greater Than One Year [Member] | Residential Mortgages [Member]
Other Commitments [Line Items]
Contract or notional amounts of unfunded commitments to extend credit	3
Greater Than One Year [Member] | Other Retail Loans [Member]
Other Commitments [Line Items]
Contract or notional amounts of unfunded commitments to extend credit	$ 24,123

Guarantees and Contingent Lia_5

Guarantees and Contingent Liabilities - Future Minimum Payments Under Capital Leases and Noncancelable Operating Leases (Detail) $ in Millions	Dec. 31, 2018USD ($)
Capital Leases
Capital Leases, 2019	$ 17
Capital Leases, 2020	15
Capital Leases, 2021	13
Capital Leases, 2022	10
Capital Leases, 2023	9
Capital Leases, Thereafter	37
Total minimum capital lease payments	101
Less amount representing interest	35
Present value of net minimum capital lease payments	66
Operating Leases
Operating Leases, 2019	291
Operating Leases, 2020	259
Operating Leases, 2021	232
Operating Leases, 2022	195
Operating Leases, 2023	153
Operating Leases, Thereafter	482
Total minimum operating lease payments	$ 1,612

Guarantees and Contingent Lia_6

Guarantees and Contingent Liabilities - Summary of Other Guarantees and Contingent Liabilities (Detail) $ in Millions	Dec. 31, 2018USD ($)
Standby Letters of Credit [Member]
Guarantor Obligations [Line Items]
Carrying Amount	$ 54
Maximum Potential Future Payments	11,305
Third Party Borrowing Arrangements [Member]
Guarantor Obligations [Line Items]
Maximum Potential Future Payments	7
Securities Lending Indemnifications [Member]
Guarantor Obligations [Line Items]
Collateral Held	3,666
Maximum Potential Future Payments	3,600
Asset Sales [Member]
Guarantor Obligations [Line Items]
Carrying Amount	117
Maximum Potential Future Payments	7,508
Merchant Processing [Member]
Guarantor Obligations [Line Items]
Collateral Held	647
Carrying Amount	47
Maximum Potential Future Payments	103,273
Tender Option Bond Program Guarantee [Member]
Guarantor Obligations [Line Items]
Collateral Held	2,399
Maximum Potential Future Payments	2,332
Minimum Revenue Guarantees [Member]
Guarantor Obligations [Line Items]
Maximum Potential Future Payments	4
Other Guarantees [Member]
Guarantor Obligations [Line Items]
Carrying Amount	99
Maximum Potential Future Payments	$ 1,368

Guarantees and Contingent Lia_7

Guarantees and Contingent Liabilities - Contract or Notional Amount of Letters of Credit (Detail) $ in Millions	Dec. 31, 2018USD ($)
Standby Letters of Credit [Member]
Letters Of Credit [Line Items]
Contract or notional amount of letters of credit	$ 11,306
Commercial [Member]
Letters Of Credit [Line Items]
Contract or notional amount of letters of credit	440
Less Than One Year [Member] | Standby Letters of Credit [Member]
Letters Of Credit [Line Items]
Contract or notional amount of letters of credit	5,501
Less Than One Year [Member] | Commercial [Member]
Letters Of Credit [Line Items]
Contract or notional amount of letters of credit	412
Greater Than One Year [Member] | Standby Letters of Credit [Member]
Letters Of Credit [Line Items]
Contract or notional amount of letters of credit	5,805
Greater Than One Year [Member] | Commercial [Member]
Letters Of Credit [Line Items]
Contract or notional amount of letters of credit	$ 28

U.S. Bancorp (Parent Company) -

U.S. Bancorp (Parent Company) - Condensed Statement of Financial Position of Parent Company Only (Detail) - USD ($) $ in Millions		Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Assets
Available-for-sale securities	[1]	$ 66,115	$ 68,137
Other assets	[1]	33,645	34,881
Total assets		467,374	462,040
Liabilities and Shareholders' Equity
Short-term funds borrowed		14,139	16,651	$ 13,963
Long-term debt		41,340	32,259
Other liabilities		14,763	16,249
Shareholders' equity		51,029	49,040
Total liabilities and equity		467,374	462,040
Parent Company [Member]
Assets
Due from banks, principally interest-bearing		9,969	9,157
Available-for-sale securities		921	963
Other assets		813	1,079
Total assets		68,163	65,529
Liabilities and Shareholders' Equity
Short-term funds borrowed			1
Long-term debt		16,291	15,769
Other liabilities		843	719
Shareholders' equity		51,029	49,040
Total liabilities and equity		68,163	65,529
Bank Subsidiaries [Member] | Parent Company [Member]
Assets
Investments in subsidiaries		47,549	46,435
Advances to subsidiaries		3,800	3,300
Nonbank Subsidiaries [Member] | Parent Company [Member]
Assets
Investments in subsidiaries		2,568	2,540
Advances to subsidiaries		$ 2,543	$ 2,055
[1]	Includes only collateral pledged by the Company where counterparties have the right to sell or pledge the collateral.

U.S. Bancorp (Parent Company)_2

U.S. Bancorp (Parent Company) - Condensed Income Statement of Parent Company Only (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Income
Other income	$ 910	$ 774	$ 911
Total net revenue	22,637	21,902
Expense
Interest expense	3,254	1,966	1,468
Other expense	1,709	2,529	2,015
Income before income taxes and equity in undistributed income of subsidiaries	8,678	7,517	8,105
Applicable income taxes	1,554	1,264	2,161
Net income attributable to U.S. Bancorp	7,096	6,218	5,888
Parent Company [Member]
Income
Interest from subsidiaries	220	159	140
Other income	33	41	57
Total net revenue	5,559	5,005	2,301
Expense
Interest expense	471	402	327
Other expense	133	124	123
Total expense	604	526	450
Income before income taxes and equity in undistributed income of subsidiaries	4,955	4,479	1,851
Applicable income taxes	(91)	(176)	(97)
Income of parent company	5,046	4,655	1,948
Equity in undistributed income of subsidiaries	2,050	1,563	3,940
Net income attributable to U.S. Bancorp	7,096	6,218	5,888
Bank Subsidiaries [Member] | Parent Company [Member]
Income
Dividends from subsidiaries	5,300	4,800	2,100
Nonbank Subsidiaries [Member] | Parent Company [Member]
Income
Dividends from subsidiaries	$ 6	$ 5	$ 4

U.S. Bancorp (Parent Company)_3

U.S. Bancorp (Parent Company) - Condensed Statement of Cash Flows of Parent Company Only (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Operating Activities
Net income attributable to U.S. Bancorp	$ 7,096	$ 6,218	$ 5,888
Adjustments to reconcile net income to net cash provided by operating activities
Other, net	1,010	(2,049)	487
Net cash provided by operating activities	10,564	6,472	5,336
Investing Activities
Other, net	(471)	(350)	322
Net cash used in investing activities	(8,977)	(12,126)	(17,958)
Financing Activities
Net decrease in short-term borrowings	(2,512)	2,688	(13,914)
Proceeds from issuance of long-term debt	12,078	9,434	10,715
Principal payments or redemption of long-term debt	(2,928)	(10,517)	(9,495)
Proceeds from issuance of preferred stock	565	993
Proceeds from issuance of common stock	86	159	355
Repurchase of preferred stock		(1,085)
Repurchase of common stock	(2,822)	(2,631)	(2,556)
Cash dividends paid on preferred stock	(274)	(284)	(267)
Cash dividends paid on common stock	(2,092)	(1,928)	(1,810)
Net cash provided by financing activities	361	9,454	17,180
Change in cash and due from banks	1,948	3,800	4,558
Cash and due from banks at beginning of period	19,505	15,705	11,147
Cash and due from banks at end of period	21,453	19,505	15,705
Parent Company [Member]
Operating Activities
Net income attributable to U.S. Bancorp	7,096	6,218	5,888
Adjustments to reconcile net income to net cash provided by operating activities
Equity in undistributed income of subsidiaries	(2,050)	(1,563)	(3,940)
Other, net	359	(125)	75
Net cash provided by operating activities	5,405	4,530	2,023
Investing Activities
Proceeds from sales and maturities of investment securities	39	100	232
Purchases of investment securities	(10)	(844)	(120)
Net increase in short-term advances to subsidiaries	(488)	(790)	(442)
Long-term advances to subsidiaries	(500)		(750)
Principal collected on long-term advances to subsidiaries		500	100
Other, net	304	(12)	(12)
Net cash used in investing activities	(655)	(1,046)	(992)
Financing Activities
Net decrease in short-term borrowings	(1)	(21)	(3)
Proceeds from issuance of long-term debt	2,100	3,920	3,550
Principal payments or redemption of long-term debt	(1,500)	(1,250)	(1,926)
Proceeds from issuance of preferred stock	565	993
Proceeds from issuance of common stock	86	159	355
Repurchase of preferred stock		(1,085)
Repurchase of common stock	(2,822)	(2,631)	(2,556)
Cash dividends paid on preferred stock	(274)	(284)	(267)
Cash dividends paid on common stock	(2,092)	(1,928)	(1,810)
Net cash provided by financing activities	(3,938)	(2,127)	(2,657)
Change in cash and due from banks	812	1,357	(1,626)
Cash and due from banks at beginning of period	9,157	7,800	9,426
Cash and due from banks at end of period	$ 9,969	$ 9,157	$ 7,800

U.S. Bancorp (Parent Company)_4

U.S. Bancorp (Parent Company) - Additional Information (Detail)	Dec. 31, 2018
Receivables
Loan Limits to the company or individual affiliate	10.00%
Maximum limit of loans to the Company and all affiliates	20.00%