U.S. Bancorp (USB) 10-Q 9 May 19 2019 Q1 Quarterly report Financial data

Document and Entity Information

Document and Entity Information - shares	3 Months Ended
	Mar. 31, 2019	Apr. 30, 2019
Document And Entity Information [Abstract]
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Mar. 31, 2019
Document Fiscal Year Focus	2019
Document Fiscal Period Focus	Q1
Trading Symbol	USB
Entity Registrant Name	US BANCORP \DE\
Entity Central Index Key	0000036104
Current Fiscal Year End Date	--12-31
Entity Filer Category	Large Accelerated Filer
Entity Emerging Growth Company	false
Entity Smaller Reporting Company	false
Entity Common Stock, Shares Outstanding		1,592,062,312

Consolidated Balance Sheet (Una

Consolidated Balance Sheet (Unaudited) - USD ($) $ in Millions		Mar. 31, 2019	Dec. 31, 2018
Assets
Cash and due from banks		$ 18,115	$ 21,453
Investment securities
Held-to-maturity (fair value $45,735 and $44,964, respectively)		46,285	46,050
Available-for-sale ($1,012 and $2,057 pledged as collateral, respectively)	[1]	68,113	66,115
Loans held for sale (including $2,690 and $2,035 of mortgage loans carried at fair value, respectively)		2,725	2,056
Loans
Commercial		103,069	102,444
Commercial real estate		39,421	39,539
Residential mortgages		66,243	65,034
Credit card		22,268	23,363
Other retail		56,698	56,430
Total loans		287,699	286,810
Less allowance for loan losses		(3,990)	(3,973)
Net loans		283,709	282,837
Premises and equipment		3,686	2,457
Goodwill		9,547	9,369
Other intangible assets		3,341	3,392
Other assets (including $988 and $843 of trading securities at fair value pledged as collateral, respectively)	[1]	40,254	33,645
Total assets		475,775	467,374
Deposits
Noninterest-bearing		74,587	81,811
Interest-bearing	[2]	273,500	263,664
Total deposits		348,087	345,475
Short-term borrowings		15,396	14,139
Long-term debt		40,680	41,340
Other liabilities		18,926	14,763
Total liabilities		423,089	415,717
Shareholders' equity
Preferred stock		5,984	5,984
Common stock, par value $0.01 a share - authorized: 4,000,000,000 shares; issued: 3/31/19 and 12/31/18 - 2,125,725,742 shares		21	21
Capital surplus		8,432	8,469
Retained earnings		60,092	59,065
Less cost of common stock in treasury: 3/31/19 - 526,688,641 shares; 12/31/18 - 517,391,021 shares		(20,699)	(20,188)
Accumulated other comprehensive income (loss)		(1,773)	(2,322)
Total U.S. Bancorp shareholders' equity		52,057	51,029
Noncontrolling interests		629	628
Total equity		52,686	51,657
Total liabilities and equity		$ 475,775	$ 467,374
[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 $15.6 billion and $15.3 billion at March 31, 2019 and December 31, 2018, respectively.

Consolidated Balance Sheet (U_2

Consolidated Balance Sheet (Unaudited) (Parenthetical) - USD ($) $ in Millions	Mar. 31, 2019	Dec. 31, 2018
Held-to-maturity securities, Fair Value	$ 45,735	$ 44,964
Securities, pledged as collateral	1,000	2,100
Mortgage loans, carried at fair value	$ 2,690	$ 2,035
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)	526,688,641	517,391,021
Time deposits greater than 250,000	$ 15,600	$ 15,300
Available-for-Sale Securities [Member]
Securities, pledged as collateral	1,012	2,057
Trading Assets, Excluding Debt and Equity Securities [Member]
Securities, pledged as collateral	$ 988	$ 843

Consolidated Statement of Incom

Consolidated Statement of Income (Unaudited) - USD ($) shares in Millions, $ in Millions	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Interest Income
Loans	$ 3,540	$ 3,095
Loans held for sale	25	33
Investment securities	705	613
Other interest income	81	50
Total interest income	4,351	3,791
Interest Expense
Deposits	695	345
Short-term borrowings	93	75
Long-term debt	304	203
Total interest expense	1,092	623
Net interest income	3,259	3,168
Provision for credit losses	377	341
Net interest income after provision for credit losses	2,882	2,827
Noninterest Income
Credit and debit card revenue	304	324
Corporate payment products revenue	162	154
Merchant processing services	378	363
Trust and investment management fees	399	398
Deposit service charges	217	261
Treasury management fees	146	150
Commercial products revenue	219	220
Mortgage banking revenue	169	184
Investment products fees	45	46
Realized securities gains (losses), net	5	5
Other	247	167
Total noninterest income	2,291	2,272
Noninterest Expense
Compensation	1,559	1,523
Employee benefits	333	330
Net occupancy and equipment	277	265
Professional services	95	83
Marketing and business development	89	97
Technology and communications	257	235
Postage, printing and supplies	72	80
Other intangibles	40	39
Other	365	403
Total noninterest expense	3,087	3,055
Income before income taxes	2,086	2,044
Applicable income taxes	378	362
Net income	1,708	1,682
Net (income) loss attributable to noncontrolling interests	(9)	(7)
Net income attributable to U.S. Bancorp	1,699	1,675
Net income applicable to U.S. Bancorp common shareholders	$ 1,613	$ 1,597
Earnings per common share	$ 1.01	$ 0.97
Diluted earnings per common share	$ 1	$ 0.96
Average common shares outstanding	1,602	1,652
Average diluted common shares outstanding	1,605	1,657

Consolidated Statement of Compr

Consolidated Statement of Comprehensive Income (Unaudited) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Statement of Comprehensive Income [Abstract]
Net income	$ 1,708	$ 1,682
Other Comprehensive Income (Loss)
Changes in unrealized gains and losses on investment securities available-for-sale	785	(776)
Changes in unrealized gains and losses on derivative hedges	(74)	86
Foreign currency translation	16	13
Changes in unrealized gains and losses on retirement plans		(3)
Reclassification to earnings of realized gains and losses	8	29
Income taxes related to other comprehensive income (loss)	(186)	162
Total other comprehensive income (loss)	549	(489)
Comprehensive income	2,257	1,193
Comprehensive (income) loss attributable to noncontrolling interests	(9)	(7)
Comprehensive income attributable to U.S. Bancorp	$ 2,248	$ 1,186

Consolidated Statement of Share

Consolidated Statement of Shareholders' Equity (Unaudited) - 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, 2017		$ 49,666	$ 21	$ 5,419	$ 8,464	$ 54,142	$ (17,602)	$ (1,404)	$ 49,040	$ 626
Shares, Beginning Balance at Dec. 31, 2017			1,656
Change in accounting principle at Dec. 31, 2017	[1]	(1)				299		(300)	(1)
Net income (loss)		1,682				1,675			1,675	7
Other comprehensive income (loss)		(489)						(489)	(489)
Preferred stock dividends	[2]	(70)				(70)			(70)
Common stock dividends		$ (497)				(497)			(497)
Common stock dividends, share		$ 0.30
Issuance of common and treasury stock		$ 40			(109)		149		40
Issuance of common and treasury stock, shares			4
Purchase of treasury stock		(594)					(594)		(594)
Purchase of treasury stock, shares			(11)
Distributions to noncontrolling interests		(7)								(7)
Net other changes in noncontrolling interests		(1)								(1)
Stock option and restricted stock grants		83			83				83
Ending Balance at Mar. 31, 2018		49,812	$ 21	5,419	8,438	55,549	(18,047)	(2,193)	49,187	625
Shares, Ending Balance at Mar. 31, 2018			1,649
Beginning Balance at Dec. 31, 2018		51,657	$ 21	5,984	8,469	59,065	(20,188)	(2,322)	51,029	628
Shares, Beginning Balance at Dec. 31, 2018			1,608
Change in accounting principle at Dec. 31, 2018		2				2			2
Net income (loss)		1,708				1,699			1,699	9
Other comprehensive income (loss)		549						549	549
Preferred stock dividends	[3]	(79)				(79)			(79)
Common stock dividends		$ (595)				(595)			(595)
Common stock dividends, share		$ 0.37
Issuance of common and treasury stock		$ 15			(114)		129		15
Issuance of common and treasury stock, shares			3
Purchase of treasury stock		(640)					(640)		(640)
Purchase of treasury stock, shares			(12)
Distributions to noncontrolling interests		(8)								(8)
Stock option and restricted stock grants		77			77				77
Ending Balance at Mar. 31, 2019		$ 52,686	$ 21	$ 5,984	$ 8,432	$ 60,092	$ (20,699)	$ (1,773)	$ 52,057	$ 629
Shares, Ending Balance at Mar. 31, 2019			1,599
[1]	Reflects the adoption of new accounting guidance on January 1, 2018 to reclassifiy the impact of the reduced federal statutory rate for corporations included in 2017 tax reform legislation from accumulated other comprehensive income to retained earnings.
[2]	Reflects dividends declared per share on the Company's Series A, Series B, Series F, Series H and Series J Non-Cumulative Perpetual Preferred Stock of $875.00, $218.75, $406.25, $321.88 and $662.50, respectively.
[3]	Reflects dividends declared per share on the Company's Series A, Series B, Series F, Series H, Series J and Series K Non-Cumulative Perpetual Preferred Stock of $951.828, $218.75, $406.25, $321.88, $662.50 and $343.75, respectively.

Consolidated Statement of Sha_2

Consolidated Statement of Shareholders' Equity (Unaudited) (Parenthetical) - $ / shares	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Series A [Member]
Preferred stock dividends declared per share	$ 951.828	$ 875
Series B [Member]
Preferred stock dividends declared per share	218.75	218.75
Series F [Member]
Preferred stock dividends declared per share	406.25	406.25
Series H [Member]
Preferred stock dividends declared per share	321.88	321.88
Series J [Member]
Preferred stock dividends declared per share	662.50	$ 662.50
Series K Preferred Stock [Member]
Preferred stock dividends declared per share	$ 343.75

Consolidated Statement of Cash

Consolidated Statement of Cash Flows (Unaudited) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Operating Activities
Net income attributable to U.S. Bancorp	$ 1,699	$ 1,675
Adjustments to reconcile net income to net cash provided by operating activities
Provision for credit losses	377	341
Depreciation and amortization of premises and equipment	80	74
Amortization of intangibles	40	39
(Gain) loss on sale of loans held for sale	(105)	(62)
(Gain) loss on sale of securities and other assets	(100)	(78)
Loans originated for sale in the secondary market, net of repayments	(6,028)	(7,762)
Proceeds from sales of loans held for sale	5,404	7,975
Other, net	(71)	(768)
Net cash provided by operating activities	1,296	1,434
Investing Activities
Proceeds from sales of available-for-sale investment securities	99	944
Proceeds from maturities of held-to-maturity investment securities	1,569	1,598
Proceeds from maturities of available-for-sale investment securities	1,865	2,771
Purchases of held-to-maturity investment securities	(1,817)	(3,310)
Purchases of available-for-sale investment securities	(3,194)	(2,068)
Net (increase) decrease in loans outstanding	(1,073)	1,417
Proceeds from sales of loans	550	330
Purchases of loans	(780)	(1,135)
Net increase in securities purchased under agreements to resell	(3,661)	(135)
Other, net	(102)	(330)
Net cash (used in) provided by investing activities	(6,544)	82
Financing Activities
Net increase (decrease) in deposits	2,612	(2,689)
Net increase in short-term borrowings	1,257	1,052
Proceeds from issuance of long-term debt	3,000	2,110
Principal payments or redemption of long-term debt	(3,657)	(1,137)
Proceeds from issuance of common stock	15	40
Repurchase of common stock	(648)	(588)
Cash dividends paid on preferred stock	(72)	(64)
Cash dividends paid on common stock	(597)	(499)
Net cash provided by (used in) financing activities	1,910	(1,775)
Change in cash and due from banks	(3,338)	(259)
Cash and due from banks at beginning of period	21,453	19,505
Cash and due from banks at end of period	$ 18,115	$ 19,246

Basis of Presentation

Basis of Presentation	3 Months Ended
	Mar. 31, 2019
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Basis of Presentation	Note 1 Basis of Presentation The accompanying consolidated financial statements have been prepared in accordance with the instructions to Form 10-Q Form 10-K Accounting policies for the lines of business are generally the same as those used in preparation of the consolidated financial statements with respect to activities specifically attributable to each business line. However, the preparation of business line results requires management to establish methodologies to allocate funding costs, expenses and other financial elements to each line of business. Table 11 “Line of Business Financial Performance” included in Management’s Discussion and Analysis provides details of segment results. This information is incorporated by reference into these Notes to Consolidated Financial Statements.

Accounting Changes

Accounting Changes	3 Months Ended
	Mar. 31, 2019
Accounting Changes and Error Corrections [Abstract]
Accounting Changes	Note 2 Accounting Changes Accounting for Leases Effective January 1, 2019, the Company adopted accounting guidance, issued by the Financial Accounting Standards Board (“FASB”) in February 2016, related to the accounting for leases. This guidance requires lessees to recognize all leases on the Consolidated Balance Sheet as lease assets and lease liabilities based primarily on the present value of future lease payments. The Company recognized approximately $1.3 billion of lease assets and related liabilities on its Consolidated Balance Sheet at the adoption date. In addition, lessors are now required to consider lease residual exposures of sales-type and direct financing leases when determining the allowance for credit losses. The adoption of this guidance was not material to the Company’s Consolidated Statement of Income. Financial Instruments—Credit Losses In June 2016, the FASB issued accounting guidance, effective for the Company no later than January 1, 2020, related to the impairment of financial instruments. This guidance changes existing impairment recognition to a model that is based on expected losses rather than incurred losses, which is intended to result in more timely recognition of credit losses. This guidance is also intended to reduce the complexity of current accounting guidance by decreasing the number of credit impairment models that entities use to account for debt instruments. A modified retrospective approach is required at adoption with a cumulative effect adjustment to retained earnings as of the adoption date. The guidance also requires additional credit quality disclosures for loans. The Company is currently evaluating the impact of this guidance on its financial statements, and expects its allowance for credit losses to increase upon adoption. The extent of this increase will continue to be evaluated and will depend on economic conditions and the composition of the Company’s loan portfolio at the time of adoption.

Investment Securities

Investment Securities	3 Months Ended
	Mar. 31, 2019
Investments, Debt and Equity Securities [Abstract]
Investment Securities	Note 3 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 March 31, 2019 December 31, 2018 Unrealized Losses Unrealized Losses (Dollars in Millions) Amortized Unrealized Other-than- Other (b) Fair Amortized Unrealized Other-than- Other (b) Fair Held-to-maturity U.S. Treasury and agencies $ 4,931 $ 3 $ – $ (92 ) $ 4,842 $ 5,102 $ 2 $ – $ (143 ) $ 4,961 Residential agency mortgage-backed securities 41,327 103 – (569 ) 40,861 40,920 45 – (994 ) 39,971 Asset-backed securities Collateralized debt obligations/Collateralized loan obligations – 3 – – 3 – 1 – – 1 Other 5 2 – – 7 5 2 – – 7 Obligations of state and political subdivisions 5 – – – 5 6 1 – – 7 Obligations of foreign governments 9 – – – 9 9 – – – 9 Other 8 – – – 8 8 – – – 8 Total held-to-maturity $ 46,285 $ 111 $ – $ (661 ) $ 45,735 $ 46,050 $ 51 $ – $ (1,137 ) $ 44,964 Available-for-sale U.S. Treasury and agencies $ 19,127 $ 17 $ – $ (225 ) $ 18,919 $ 19,604 $ 11 $ – $ (358 ) $ 19,257 Mortgage-backed securities Residential agency 42,267 153 – (541 ) 41,879 40,542 120 – (910 ) 39,752 Commercial agency 2 – – – 2 2 – – – 2 Other asset-backed securities 389 6 – – 395 397 6 – – 403 Obligations of state and political subdivisions 6,814 138 – (34 ) 6,918 6,836 37 – (172 ) 6,701 Total available-for-sale $ 68,599 $ 314 $ – $ (800 ) $ 68,113 $ 67,381 $ 174 $ – $ (1,440 ) $ 66,115 (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 Investment securities with a fair value of $8.7 billion at March 31, 2019, and $10.9 billion at December 31, 2018, 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 $1.0 billion at March 31, 2019, and $2.1 billion at December 31, 2018. The following table provides information about the amount of interest income from taxable and non-taxable Three Months Ended March 31 (Dollars in Millions) 2019 2018 Taxable $ 650 $ 561 Non-taxable 55 52 Total interest income from investment securities $ 705 $ 613 The following table provides information about the amount of gross gains and losses realized through the sales of available-for-sale Three Months Ended March 31 (Dollars in Millions) 2019 2018 Realized gains $ 5 $ 5 Realized losses – – Net realized gains (losses) $ 5 $ 5 Income tax (benefit) on net realized gains (losses) $ 2 $ 1 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 three months ended March 31, 2019 and 2018. At March 31, 2019, 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 March 31, 2019: Less Than 12 Months 12 Months or Greater Total (Dollars in Millions) Fair Unrealized Fair Unrealized Fair Unrealized Held-to-maturity U.S. Treasury and agencies $ – $ – $ 4,449 $ (92 ) $ 4,449 $ (92 ) Residential agency mortgage-backed securities 1,632 (6 ) 27,456 (563 ) 29,088 (569 ) Other asset-backed securities – – 1 – 1 – Obligations of foreign governments 3 – – – 3 – Total held-to-maturity $ 1,635 $ (6 ) $ 31,906 $ (655 ) $ 33,541 $ (661 ) Available-for-sale U.S. Treasury and agencies $ 21 $ – $ 17,478 $ (225 ) $ 17,499 $ (225 ) Residential agency mortgage-backed securities 4,470 (18 ) 24,097 (523 ) 28,567 (541 ) Commercial agency mortgage-backed securities – – 2 – 2 – Obligations of state and political subdivisions – – 1,686 (34 ) 1,686 (34 ) Total available-for-sale $ 4,491 $ (18 ) $ 43,263 $ (782 ) $ 47,754 $ (800 ) 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 March 31, 2019, 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	3 Months Ended
	Mar. 31, 2019
Receivables [Abstract]
Loans and Allowance for Credit Losses	Note 4 Loans and Allowance for Credit Losses The composition of the loan portfolio, disaggregated by class and underlying specific portfolio type, was as follows: March 31, 2019 December 31, 2018 (Dollars in Millions) Amount Percent Amount Percent Commercial Commercial $ 97,552 33.9 % $ 96,849 33.8 % Lease financing 5,517 1.9 5,595 2.0 Total commercial 103,069 35.8 102,444 35.7 Commercial Real Estate Commercial mortgages 28,416 9.9 28,596 10.0 Construction and development 11,005 3.8 10,943 3.8 Total commercial real estate 39,421 13.7 39,539 13.9 Residential Mortgages Residential mortgages 54,552 18.9 53,034 18.5 Home equity loans, first liens 11,691 4.1 12,000 4.2 Total residential mortgages 66,243 23.0 65,034 22.7 Credit Card 22,268 7.8 23,363 8.1 Other Retail Retail leasing 8,612 3.0 8,546 3.0 Home equity and second mortgages 15,883 5.5 16,122 5.6 Revolving credit 2,934 1.0 3,088 1.1 Installment 10,030 3.5 9,676 3.4 Automobile 18,976 6.6 18,719 6.5 Student 263 .1 279 .1 Total other retail 56,698 19.7 56,430 19.7 Total loans $ 287,699 100.0 % $ 286,810 100.0 % The Company had loans of $91.0 billion at March 31, 2019, and $88.7 billion at December 31, 2018, pledged at the Federal Home Loan Bank, and loans of $71.1 billion at March 31, 2019, and $70.1 billion at December 31, 2018, pledged at the Federal Reserve Bank. 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 $854 million at March 31, 2019 and $872 million at December 31, 2018. 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.” 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. During 2018 the majority of these loans were sold and the loss share coverage expired. Any remaining balances were reclassified to be included in their respective portfolio category. Allowance for Credit Losses The allowance for credit losses is established for probable and estimable losses incurred in the Company’s loan and lease portfolio, including unfunded credit commitments. The allowance for credit losses is increased through provisions charged to earnings and reduced by net charge-offs. Management evaluates the adequacy of the allowance for incurred losses on a quarterly basis. 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 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, 2018 $ 1,454 $ 800 $ 455 $ 1,102 $ 630 $ – $ 4,441 Add Provision for credit losses 64 12 (7 ) 238 70 – 377 Deduct Loans charged-off 111 1 8 257 96 – 473 Less recoveries of loans charged-off (38 ) (1 ) (5 ) (32 ) (30 ) – (106 ) Net loans charged-off 73 – 3 225 66 – 367 Balance at March 31, 2019 $ 1,445 $ 812 $ 445 $ 1,115 $ 634 $ – $ 4,451 Balance at December 31, 2017 $ 1,372 $ 831 $ 449 $ 1,056 $ 678 $ 31 $ 4,417 Add Provision for credit losses 74 (8 ) 1 219 60 (5 ) 341 Deduct Loans charged-off 94 3 13 248 95 – 453 Less recoveries of loans charged-off (34 ) (6 ) (6 ) (37 ) (29 ) – (112 ) Net loans charged-off 60 (3 ) 7 211 66 – 341 Balance at March 31, 2018 $ 1,386 $ 826 $ 443 $ 1,064 $ 672 $ 26 $ 4,417 Additional detail of the allowance for credit losses by portfolio class was as follows: (Dollars in Millions) Commercial Commercial Residential Credit Other Total Allowance Balance at March 31, 2019 Related to Loans individually evaluated for impairment (a) $ 31 $ 2 $ – $ – $ – $ 33 TDRs collectively evaluated for impairment 18 4 117 74 12 225 Other loans collectively evaluated for impairment 1,396 806 313 1,041 622 4,178 Loans acquired with deteriorated credit quality – – 15 – – 15 Total allowance for credit losses $ 1,445 $ 812 $ 445 $ 1,115 $ 634 $ 4,451 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 (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 Total March 31, 2019 Loans individually evaluated for impairment (a) $ 284 $ 76 $ – $ – $ – $ 360 TDRs collectively evaluated for impairment 160 143 3,158 254 190 3,905 Other loans collectively evaluated for impairment 102,625 39,171 62,785 22,014 56,508 283,103 Loans acquired with deteriorated credit quality – 31 300 – – 331 Total loans $ 103,069 $ 39,421 $ 66,243 $ 22,268 $ 56,698 $ 287,699 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 (a) Represents loans greater than $5 million classified as nonperforming or TDRs. Credit Quality The credit quality of the Company’s loan portfolios is assessed as a function of net credit losses, levels of nonperforming assets and delinquencies, and credit quality ratings as defined by the Company. 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 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 March 31, 2019 Commercial $ 102,125 $ 596 $ 77 $ 271 $ 103,069 Commercial real estate 39,248 43 3 127 39,421 Residential mortgages (a) 65,666 168 122 287 66,243 Credit card 21,690 290 288 – 22,268 Other retail 56,045 375 105 173 56,698 Total loans $ 284,774 $ 1,472 $ 595 $ 858 $ 287,699 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 (a) At March 31, 2019, $418 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 $430 million and $1.7 billion at December 31, 2018, respectively. At March 31, 2019, the amount of foreclosed residential real estate held by the Company, and included in other real estate owned (“OREO”), was $88 million, compared with $106 million at December 31, 2018. These amounts exclude $231 million and $235 million at March 31, 2019 and December 31, 2018, 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 March 31, 2019 and December 31, 2018, was $1.6 billion and $1.5 billion, respectively, of which $1.3 billion and $1.2 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 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. 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 March 31, 2019 Commercial $ 100,888 $ 969 $ 1,212 $ 2,181 $ 103,069 Commercial real estate 38,368 532 521 1,053 39,421 Residential mortgages (b) 65,779 – 464 464 66,243 Credit card 21,980 – 288 288 22,268 Other retail 56,385 6 307 313 56,698 Total loans $ 283,400 $ 1,507 $ 2,792 $ 4,299 $ 287,699 Total outstanding commitments $ 607,486 $ 2,191 $ 3,405 $ 5,596 $ 613,082 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 (a) Classified rating on consumer loans primarily based on delinquency status. (b) At March 31, 2019, $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 $1.7 billion and $1.6 billion at December 31, 2018, 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. Impaired loans include all nonaccrual and TDR loans. For all loan classes, interest income on TDR loans is recognized under the modified terms and conditions if the borrower has demonstrated repayment performance at a level commensurate with the modified terms over several payment cycles. Interest income is generally not recognized on other impaired loans until the loan is paid off. However, interest income may be recognized for interest payments if the remaining carrying amount of the loan is believed to be collectible. 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. A summary of impaired loans, which include all nonaccrual and TDR loans, by portfolio class was as follows: (Dollars in Millions) Period-end Unpaid Valuation Commitments March 31, 2019 Commercial $ 502 $ 1,096 $ 50 $ 136 Commercial real estate 266 619 7 – Residential mortgages 1,684 1,843 82 – Credit card 254 254 74 – Other retail 325 400 15 3 Total loans, excluding loans purchased from GNMA mortgage pools 3,031 4,212 228 139 Loans purchased from GNMA mortgage pools 1,578 1,578 36 – Total $ 4,609 $ 5,790 $ 264 $ 139 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 (a) Substantially all loans classified as impaired at March 31, 2019 and December 31, 2018, had an associated allowance for credit losses. Additional information on impaired loans follows: 2019 2018 Three Months Ended March 31 (Dollars in Millions) Average Interest Average Interest Commercial $ 485 $ 1 $ 545 $ 1 Commercial real estate 273 2 267 2 Residential mortgages 1,697 24 1,914 20 Credit card 249 – 232 1 Other retail 330 3 300 4 Covered Loans – – 38 – Total loans, excluding loans purchased from GNMA mortgage pools 3,034 30 3,296 28 Loans purchased from GNMA mortgage pools 1,609 17 1,624 12 Total $ 4,643 $ 47 $ 4,920 $ 40 Troubled Debt Restructurings In certain circumstances, the Company may modify the terms of a loan to maximize the collection of amounts due when a borrower is experiencing financial difficulties or is expected to experience difficulties in the near-term. Concessionary modifications are classified as TDRs unless the modification results in only an insignificant delay in payments to be received. The Company recognizes interest on TDRs if the borrower complies with the revised terms and conditions as agreed upon with the Company and has demonstrated repayment performance at a level commensurate with the modified terms over several payment cycles, which is generally six months or greater. To the extent a previous restructuring was insignificant, the Company considers the cumulative effect of past restructurings related to the receivable when determining whether a current restructuring is a TDR. Loans classified as TDRs are considered impaired loans for reporting and measurement purposes. The following table provides a summary of loans modified as TDRs during the periods presented by portfolio class: 2019 2018 Three Months Ended March 31 (Dollars in Millions) Number Pre-Modification Post-Modification Number Pre-Modification Post-Modification Commercial 913 $ 36 $ 29 623 $ 81 $ 75 Commercial real estate 20 47 46 29 16 16 Residential mortgages 96 14 13 148 17 16 Credit card 9,648 50 51 8,546 43 43 Other retail 573 11 10 559 11 10 Total loans, excluding loans purchased from GNMA mortgage pools 11,250 158 149 9,905 168 160 Loans purchased from GNMA mortgage pools 1,538 203 195 888 117 113 Total loans 12,788 $ 361 $ 344 10,793 $ 285 $ 273 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 first quarter of 2019, at March 31, 2019, 11 residential mortgages, 20 home equity and second mortgage loans and 1,125 loans purchased from GNMA mortgage pools with outstanding balances of $2 million, $2 million and $146 million, respectively, were in a trial period and have estimated post-modification balances of $2 million, $2 million and $143 million, respectively, assuming permanent modification occurs at the end of the trial period. 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. The following table provides a summary of TDR loans that defaulted (fully or partially charged-off 2019 2018 Three Months Ended March 31 (Dollars in Millions) Number Amount Number Amount Commercial 234 $ 5 239 $ 9 Commercial real estate 8 6 8 4 Residential mortgages 96 10 56 4 Credit card 2,054 9 2,036 9 Other retail 147 7 77 1 Covered loans – – 1 – Total loans, excluding loans purchased from GNMA mortgage pools 2,539 37 2,417 27 Loans purchased from GNMA mortgage pools 124 17 232 31 Total loans 2,663 $ 54 2,649 $ 58 In addition to the defaults in the table above, the Company had a total of 259 residential mortgage loans, home equity and second mortgage loans and loans purchased from GNMA mortgage pools for the three months ended March 31, 2019, 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 $33 million for the three months ended March 31, 2019.

Leases

Leases	3 Months Ended
	Mar. 31, 2019
Text Block [Abstract]
Leases	Note 5 Leases The Company, as a lessor, originates retail and commercial leases either directly to the consumer or indirectly through dealer networks. Retail leases, primarily automobiles, have 3 to 5 year terms. Commercial leases may include high dollar assets such as aircraft or lower cost items such as office equipment. At lease inception, retail lease customers are provided with an end-of-term Residual values on leased assets are reviewed regularly for other-than-temporary impairment. Residual valuations for retail leases are based on independent assessments of expected used automobile sale prices at the end of the lease term. Impairment tests are conducted based on these valuations considering the probability of the lessee returning the asset to the Company, re-marketing The Company manages its risk to changes in the residual value of leased vehicles, office and business equipment, and other assets through disciplined residual valuation setting at the inception of a lease, diversification of its leased assets, regular residual asset valuation reviews and monitoring of residual value gains or losses upon the disposition of assets. Retail lease residual value risk is mitigated further by the purchase of residual value insurance coverage and effective end-of-term off-lease The components of the net investment in sales-type and direct financing leases were as follows: (Dollars in Millions) March 31, December 31, Lease receivables $ 12,204 $ 12,207 Unguaranteed residual values accruing to the lessor’s benefit 1,898 1,877 Total net investment in sales-type and direct financing leases $ 14,102 $ 14,084 The Company, as a lessor, recorded $239 million of revenue on its Consolidated Statement of Income for the three months ended March 31, 2019, primarily consisting of interest income on sales-type and direct financing leases. The contractual future lease payments to be received by the Company at March 31, 2019, were as follows: (Dollars in Millions) Sales-type and Operating leases One Year or Less $ 4,463 $ 181 Over One Through Two Years 3,998 145 Over Two Through Three Years 2,630 103 Over Three Through Four Years 1,286 68 Over Four Through Five Years 367 48 Thereafter 530 68 Total lease payments 13,274 $ 613 Amounts representing interest (1,070 ) Lease receivables $ 12,204 The Company, as lessee, leases certain assets for use in its operations. Leased assets primarily include retail branches, operations centers and other corporate locations, and, to a lesser extent, office and computer equipment. For each lease with an original term greater than 12 months, the Company records a lease liability and a corresponding right of use (“ROU”) asset. The lease liability is determined as the present value of the consideration to be paid attributable to the lease component(s) in the contract. The discount rate used by the Company is determined at commencement of the lease using a secured rate for a similar term as the period of the lease. The Company’s leases do not include significant variable lease payments. Certain of the Company’s real estate leases include options to extend. Lease extension options are generally exercisable at market rates. Such option periods do not provide a significant incentive, and their exercise is not reasonably certain. Accordingly, the Company does not recognize payments occurring during option periods in the calculation of its ROU assets and lease liabilities. The Company’s leases do not impose significant covenants or other restrictions on the Company. Total costs incurred by the Company, as a lessee, were $95 million for the three months ended March 31, 2019, and principally related to contractual lease payments on operating leases. The following table presents amounts relevant to the Company’s assets leased for use in its operations for the three months ended March 31, 2019: (Dollars in Millions) Cash paid for amounts included in the measurement of lease liabilities Operating cash flows from operating leases $ 75 Operating cash flows from finance leases 2 Financing cash flows from finance leases 3 Right of use assets obtained in exchange for new operating lease liabilities 36 Right of use assets obtained in exchange for new finance lease liabilities 1 Weighted-average remaining lease term of operating leases (in years) 7.8 Weighted-average remaining lease term of finance leases (in years) 10.7 Weighted-average discount rate of operating leases 3.3 % Weighted-average discount rate of finance leases 17.3 % The contractual future lease obligations of the Company at March 31, 2019, were as follows: (Dollars in Millions) Operating leases Finance leases One Year or Less $ 286 $ 17 Over One Through Two Years 260 15 Over Two Through Three Years 228 12 Over Three Through Four Years 191 10 Over Four Through Five Years 148 9 Thereafter 466 36 Total lease payments 1,579 99 Amounts representing interest (183 ) (34 ) Lease liabilities $ 1,396 $ 65

Accounting for Transfers and Se

Accounting for Transfers and Servicing of Financial Assets and Variable Interest Entities	3 Months Ended
	Mar. 31, 2019
Accounting Policies [Abstract]
Accounting for Transfers and Servicing of Financial Assets and Variable Interest Entities	Note 6 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 mortgage servicing rights (“MSRs”), refer to Note 7. 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 $7 million and $6 million of support to the funds during the three months ended March 31, 2019 and 2018, respectively. The Company is involved in various entities that are considered to be variable interest entities (“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 (Dollars in Millions) March 31, 2019 December 31, 2018 Investment carrying amount $ 5,836 $ 5,823 Unfunded capital and other commitments 2,708 2,778 Maximum exposure to loss 12,398 12,360 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 $30 million at March 31, 2019 and $27 million at December 31, 2018. The maximum exposure to loss related to these VIEs was $52 million at March 31, 2019 and December 31, 2018, 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 $81 million at March 31, 2019, compared with less than $1 million to $95 million at December 31, 2018. 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 March 31, 2019 and 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 March 31, 2019, $2.5 billion of available-for-sale available-for-sale

Mortgage Servicing Rights

Mortgage Servicing Rights	3 Months Ended
	Mar. 31, 2019
Text Block [Abstract]
Mortgage Servicing Rights	Note 7 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 $230.5 billion of residential mortgage loans for others at March 31, 2019, and $231.5 billion at December 31, 2018, 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 $11 million and $19 million for the three months ended March 31, 2019 and 2018, respectively. Loan servicing and ancillary fees, not including valuation changes, included in mortgage banking revenue were $179 million and $190 million for the three months ended March 31, 2019 and 2018, respectively. Changes in fair value of capitalized MSRs are summarized as follows: Three Months Ended (Dollars in Millions) 2019 2018 Balance at beginning of period $ 2,791 $ 2,645 Rights purchased 1 2 Rights capitalized 78 100 Changes in fair value of MSRs Due to fluctuations in market interest rates (a) (119 ) 114 Due to revised assumptions or models (b) 11 24 Other changes in fair value (c) (106 ) (105 ) Balance at end of period $ 2,656 $ 2,780 (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 was as follows: March 31, 2019 December 31, 2018 (Dollars in Millions) Down Down Down Up Up Up Down Down Down Up Up Up MSR portfolio $ (598 ) $ (271 ) $ (128 ) $ 114 $ 213 $ 372 $ (501 ) $ (223 ) $ (105 ) $ 92 $ 171 $ 295 Derivative instrument hedges 538 269 132 (123 ) (232 ) (429 ) 455 215 104 (94 ) (177 ) (321 ) Net sensitivity $ (60 ) $ (2 ) $ 4 $ (9 ) $ (19 ) $ (57 ) $ (46 ) $ (8 ) $ (1 ) $ (2 ) $ (6 ) $ (26 ) 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 was as follows: March 31, 2019 December 31, 2018 (Dollars in Millions) HFA Government Conventional (d) Total HFA Government Conventional (d) Total Servicing portfolio (a) $ 45,133 $ 35,785 $ 147,361 $ 228,279 $ 44,384 $ 35,990 $ 148,910 $ 229,284 Fair value $ 510 $ 451 $ 1,695 $ 2,656 $ 526 $ 465 $ 1,800 $ 2,791 Value (bps) (b) 113 126 115 116 119 129 121 122 Weighted-average servicing fees (bps) 34 36 27 30 34 36 27 30 Multiple (value/servicing fees) 3.30 3.49 4.28 3.91 3.45 3.63 4.52 4.11 Weighted-average note rate 4.63 % 3.99 % 4.07 % 4.17 % 4.59 % 3.97 % 4.06 % 4.15 % Weighted-average age (in years) 3.4 4.8 4.7 4.5 3.3 4.7 4.5 4.3 Weighted-average expected prepayment (constant prepayment rate) 10.8 % 12.0 % 10.3 % 10.7 % 9.8 % 11.0 % 9.1 % 9.5 % Weighted-average expected life (in years) 7.2 6.3 6.6 6.7 7.7 6.7 7.1 7.2 Weighted-average option adjusted spread (c) 8.6 % 8.2 % 7.1 % 7.6 % 8.6 % 8.3 % 7.2 % 7.6 % (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.

Preferred Stock

Preferred Stock	3 Months Ended
	Mar. 31, 2019
Equity [Abstract]
Preferred Stock	Note 8 Preferred Stock At March 31, 2019 and December 31, 2018, the Company had authority to issue 50 million shares 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: March 31, 2019 December 31, 2018 (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 23,000 575 10 565 Total preferred stock (a) 209,510 $ 6,176 $ 192 $ 5,984 209,510 $ 6,176 $ 192 $ 5,984 (a) The par value of all shares issued and outstanding at March 31, 2019 and December 31, 2018, was $1.00 per share.

Accumulated Other Comprehensive

Accumulated Other Comprehensive Income (Loss)	3 Months Ended
	Mar. 31, 2019
Equity [Abstract]
Accumulated Other Comprehensive Income (Loss)	Note 9 Accumulated Other Comprehensive Income (Loss) 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 three months ended March 31, is as follows: (Dollars in Millions) Unrealized Gains Available-For- Unrealized Gains Available-For-Sale to Held-To- Maturity Unrealized Gains Unrealized Gains Foreign Total 2019 Balance at beginning of period $ (946 ) $ 14 $ 112 $ (1,418 ) $ (84 ) $ (2,322 ) Changes in unrealized gains and losses 785 – (74 ) – – 711 Foreign currency translation adjustment (a) – – – – 16 16 Reclassification to earnings of realized gains and losses (5 ) (1 ) (8 ) 22 – 8 Applicable income taxes (197 ) – 21 (6 ) (4 ) (186 ) Balance at end of period $ (363 ) $ 13 $ 51 $ (1,402 ) $ (72 ) $ (1,773 ) 2018 Balance at beginning of period $ (357 ) $ 17 $ 71 $ (1,066 ) $ (69 ) $ (1,404 ) Revaluation of tax related balances (b) (77 ) 4 15 (229 ) (13 ) (300 ) Changes in unrealized gains and losses (776 ) – 86 (3 ) – (693 ) Foreign currency translation adjustment (a) – – – – 13 13 Reclassification to earnings of realized gains and losses (5 ) (3 ) 3 34 – 29 Applicable income taxes 198 1 (23 ) (7 ) (7 ) 162 Balance at end of period $ (1,017 ) $ 19 $ 152 $ (1,271 ) $ (76 ) $ (2,193 ) (a) Represents the impact of changes in foreign currency exchange rates on the Company’s investment in foreign operations and related hedges. (b) 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. Additional detail about the impact to net income for items reclassified out of accumulated other comprehensive income (loss) and into earnings for the three months ended March 31, is as follows: Impact to Net Income Affected Line Item in the (Dollars in Millions) 2019 2018 Unrealized gains (losses) on investment securities available-for-sale Realized gains (losses) on sale of investment securities $ 5 $ 5 Total securities gains (losses), net (2 ) (1 ) Applicable income taxes 3 4 Net-of-tax Unrealized gains (losses) on investment securities transferred from available-for-sale held-to-maturity Amortization of unrealized gains 1 3 Interest income – (1 ) Applicable income taxes 1 2 Net-of-tax Unrealized gains (losses) on derivative hedges Realized gains (losses) on derivative hedges 8 (3 ) Interest expense (2 ) 1 Applicable income taxes 6 (2 ) Net-of-tax Unrealized gains (losses) on retirement plans Actuarial gains (losses) and prior service cost (credit) amortization (22 ) (34 ) Other noninterest expense 6 8 Applicable income taxes (16 ) (26 ) Net-of-tax Total impact to net income $ (6 ) $ (22 )

Earnings Per Share

Earnings Per Share	3 Months Ended
	Mar. 31, 2019
Earnings Per Share [Abstract]
Earnings Per Share	Note 10 Earnings Per Share The components of earnings per share were: Three Months Ended (Dollars and Shares in Millions, Except Per Share Data) 2019 2018 Net income attributable to U.S. Bancorp $ 1,699 $ 1,675 Preferred dividends (79 ) (70 ) Earnings allocated to participating stock awards (7 ) (8 ) Net income applicable to U.S. Bancorp common shareholders $ 1,613 $ 1,597 Average common shares outstanding 1,602 1,652 Net effect of the exercise and assumed purchase of stock awards 3 5 Average diluted common shares outstanding 1,605 1,657 Earnings per common share $ 1.01 $ .97 Diluted earnings per common share $ 1.00 $ .96 Options outstanding at March 31, 2019 and 2018, to purchase 1 million common shares, were not included in the computation of diluted earnings per share for the three months ended March 31, 2019 and 2018, because they were antidilutive.

Employee Benefits

Employee Benefits	3 Months Ended
	Mar. 31, 2019
Retirement Benefits [Abstract]
Employee Benefits	Note 11 Employee Benefits The components of net periodic benefit cost for the Company’s retirement plans were: Three Months Ended March 31 Pension Plans Postretirement (Dollars in Millions) 2019 2018 2019 2018 Service cost $ 48 $ 52 $ – $ – Interest cost 62 56 1 1 Expected return on plan assets (95 ) (95 ) (1 ) (1 ) Prior service cost (credit) amortization – – (1 ) (1 ) Actuarial loss (gain) amortization 24 37 (1 ) (2 ) Net periodic benefit cost (a) $ 39 $ 50 $ (2 ) $ (3 ) (a) Service cost is included in employee benefits expense on the Consolidated Statement of Income. All other components are included in other noninterest expense on the Consolidated Statement of Income.

Income Taxes

Income Taxes	3 Months Ended
	Mar. 31, 2019
Income Tax Disclosure [Abstract]
Income Taxes	Note 12 Income Taxes The components of income tax expense were: Three Months Ended (Dollars in Millions) 2019 2018 Federal Current $ 220 $ 234 Deferred 116 19 Federal income tax 336 253 State Current 30 92 Deferred 12 17 State income tax 42 109 Total income tax provision $ 378 $ 362 A reconciliation of expected income tax expense at the federal statutory rate of 21 percent to the Company’s applicable income tax expense follows: Three Months Ended (Dollars in Millions) 2019 2018 Tax at statutory rate $ 438 $ 429 State income tax, at statutory rates, net of federal tax benefit 84 89 Tax effect of Tax credits and benefits, net of related expenses (103 ) (115 ) Exam resolutions (49 ) (49 ) Tax-exempt (32 ) (32 ) Noncontrolling interests (2 ) (1 ) Other items 42 41 Applicable income taxes $ 378 $ 362 The Company’s income tax returns are subject to review and examination by federal, state, local and foreign government authorities. On an ongoing basis, numerous federal, state, local and foreign examinations are in progress and cover multiple tax years. As of March 31, 2019, 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 foreign, state and local government authorities vary by jurisdiction. The Company’s net deferred tax asset was $495 million at March 31, 2019 and $809 million at December 31, 2018.

Derivative Instruments

Derivative Instruments	3 Months Ended
	Mar. 31, 2019
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Derivative Instruments	Note 13 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 These derivatives are interest rate swaps the Company uses to hedge the change in fair value related to interest rate changes of its underlying fixed-rate debt. Changes in the fair value of derivatives designated as fair value hedges, and changes in the fair value of the hedged items, are recorded in earnings. Cash Flow Hedges These derivatives are interest rate swaps the Company uses to hedge the forecasted cash flows from its underlying variable-rate debt. Changes in the fair value of derivatives designated as cash flow hedges are recorded in other comprehensive income (loss) until the cash flows of the hedged items are realized. 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). At March 31, 2019, the Company had $51 million (net-of-tax) (net-of-tax) (net-of-tax) (net-of-tax), Net Investment Hedges The Company uses forward commitments to sell specified amounts of certain foreign currencies, and non-derivative non-derivative Other Derivative Positions The Company enters into free-standing derivatives to mitigate interest rate risk and for other risk management purposes. These derivatives include forward commitments to sell 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- Notional Fair Weighted- March 31, 2019 Fair value hedges Interest rate contracts Receive fixed/pay floating swaps $ 1,300 $ – 4.77 $ – $ – – Cash flow hedges Interest rate contracts Pay fixed/receive floating swaps 3,892 10 5.48 6,450 3 1.29 Net investment hedges Foreign exchange forward contracts 447 2 .05 – – – Other economic hedges Interest rate contracts Futures and forwards Buy 5,062 34 .30 2,357 5 .04 Sell 2,936 21 .04 15,268 62 .47 Options Purchased 9,945 97 3.26 300 – 5.00 Written 1,105 30 .09 1,006 20 1.98 Receive fixed/pay floating swaps 7,101 – 10.61 2,226 – 11.27 Pay fixed/receive floating swaps 1,801 – 12.22 4,844 – 6.25 Foreign exchange forward contracts 324 1 .04 362 2 .04 Equity contracts 66 – .21 70 – .30 Credit contracts 2,377 1 3.25 5,257 3 4.00 Other (a) 210 3 .02 1,749 77 1.10 Total $ 36,566 $ 199 $ 39,889 $ 172 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 (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, $74 million and 1.25 years at March 31, 2019, respectively, compared to $1.5 billion, $84 million and 1.50 years at December 31, 2018, respectively. In addition, includes short-term underwriting purchase and sale commitments with total asset and liability notional values of $210 million at March 31, 2019, and $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- Notional Fair Weighted- March 31, 2019 Interest rate contracts Receive fixed/pay floating swaps $ 60,918 $ 1,140 6.53 $ 50,227 $ 220 3.76 Pay fixed/receive floating swaps 48,506 172 3.65 58,611 519 6.41 Other (a) 6,056 1 3.59 6,601 2 3.06 Options Purchased 44,629 34 1.36 1,296 42 9.33 Written 1,396 43 8.92 41,960 33 1.25 Futures Buy 1,085 1 1.28 – – – Sell – – – 3,634 3 .40 Foreign exchange rate contracts Forwards, spots and swaps 26,279 597 1.08 26,515 585 1.25 Options Purchased 1,763 30 .86 – – – Written – – – 1,763 30 .86 Credit contracts 30 – 5.23 756 1 5.23 Total $ 190,662 $ 2,018 $ 191,363 $ 1,435 December 31, 2018 Interest rate contracts Receive fixed/pay floating swaps $ 42,054 $ 754 6.73 $ 60,731 $ 456 4.32 Pay fixed/receive floating swaps 60,970 288 3.90 40,499 420 6.57 Other (a) 5,777 2 3.77 6.496 2 2.72 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 (a) Primarily represents floating rate interest rate swaps that pay based on differentials between specified interest rate indexes. 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) (Loss) Gains (Losses) (Dollars in Millions) 2019 2018 2019 2018 Asset and Liability Management Positions Cash flow hedges Interest rate contracts $ (55 ) $ 64 $ 6 $ (2 ) Net investment hedges Foreign exchange forward contracts 2 16 – – Non-derivative 16 (34 ) – – 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 included in interest expense on the Consolidated Statement of Income for the three months ended March 31: (Dollars in Millions) 2019 2018 Total amount of interest expense presented in the Consolidated Statement of Income $ 1,092 $ 623 Asset and Liability Management Positions Fair value hedges Interest rate contract derivatives (21 ) (43 ) Hedged items 21 43 Cash Flow hedges Interest rate contract derivatives (8 ) 3 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 three months ended March 31, 2019 and 2018. The table below shows cumulative hedging adjustments and the carrying amount of assets (liabilities) designated in fair value hedges: Carrying Amount of the Hedged Assets Cumulative Hedging Adjustment (a) (Dollars in Millions) March 31, 2019 December 31, 2018 March 31, 2019 December 31, 2018 Line Item in the Consolidated Balance Sheet Long-term Debt $ 1,318 $ – $ 3 $ (27 ) (a) The cumulative hedging adjustment related to discontinued hedging relationships at March 31, 2019 and December 31, 2018 was $(17) million and $(27) million, respectively. The table below shows the gains (losses) recognized in earnings for other economic hedges and the customer-related positions for the three months ended March 31: (Dollars in Millions) Location of Gains (Losses) 2019 2018 Asset and Liability Management Positions Other economic hedges Interest rate contracts Futures and forwards Mortgage banking revenue $ (17 ) $ 58 Purchased and written options Mortgage banking revenue 67 42 Swaps Mortgage banking revenue 111 (110 ) Foreign exchange forward contracts Other noninterest income (6 ) (12 ) Equity contracts Compensation expense (1 ) (1 ) Other Other noninterest income 1 – Customer-Related Positions Interest rate contracts Swaps Commercial products revenue 20 3 Purchased and written options Commercial products revenue 4 – Futures Commercial products revenue (1 ) 8 Foreign exchange rate contracts Forwards, spots and swaps Commercial products revenue 18 23 Credit contracts Commercial products revenue (3 ) – 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 March 31, 2019, was $353 million. At March 31, 2019, the Company had $271 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	3 Months Ended
	Mar. 31, 2019
Text Block [Abstract]
Netting Arrangements for Certain Financial Instruments and Securities Financing Activities	Note 14 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 Greater Than Total March 31, 2019 Repurchase agreements U.S. Treasury and agencies $ 295 $ – $ – $ – $ 295 Residential agency mortgage-backed securities 346 105 – 473 924 Corporate debt securities 528 – – – 528 Total repurchase agreements 1,169 105 – 473 1,747 Securities loaned Corporate debt securities 161 – – – 161 Total securities loaned 161 – – – 161 Gross amount of recognized liabilities $ 1,330 $ 105 $ – $ 473 $ 1,908 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 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: (Dollars in Millions) Gross Gross Amounts Net Amounts Gross Amounts Not Offset on the Financial Collateral Net Amount March 31, 2019 Derivative assets (d) $ 2,173 $ (872 ) $ 1,301 $ (63 ) $ (38 ) $ 1,200 Reverse repurchase agreements 3,868 – 3,868 (278 ) (3,586 ) 4 Securities borrowed 1,361 – 1,361 – (1,316 ) 45 Total $ 7,402 $ (872 ) $ 6,530 $ (341 ) $ (4,940 ) $ 1,249 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 (a) Includes $346 million and $236 million of cash collateral related payables that were netted against derivative assets at March 31, 2019 and December 31, 2018, 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 $44 million and $23 million at March 31, 2019 and December 31, 2018, respectively, of derivative assets not subject to netting arrangements. (Dollars in Millions) Gross Gross Amounts Net Amounts Gross Amounts Not Offset on the Financial Collateral Net Amount March 31, 2019 Derivative liabilities (d) $ 1,527 $ (796 ) $ 731 $ (63 ) $ – $ 668 Repurchase agreements 1,747 – 1,747 (278 ) (1,469 ) – Securities loaned 161 – 161 – (158 ) 3 Total $ 3,435 $ (796 ) $ 2,639 $ (341 ) $ (1,627 ) $ 671 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 (a) Includes $270 million and $240 million of cash collateral related receivables that were netted against derivative liabilities at March 31, 2019 and December 31, 2018, 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 $80 million and $85 million at March 31, 2019 and December 31, 2018, respectively, of derivative liabilities not subject to netting arrangements.

Fair Values of Assets and Liabi

Fair Values of Assets and Liabilities	3 Months Ended
	Mar. 31, 2019
Fair Value Disclosures [Abstract]
Fair Values of Assets and Liabilities	Note 15 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 descriptions include information about the valuation models and key inputs to those models. During the three months ended March 31, 2019 and 2018, there were no significant changes to the valuation techniques used by the Company to measure fair value. Available-For-Sale When quoted market prices for identical securities are available in an active market, these prices are used to determine fair value and these securities are classified within Level 1 of the fair value hierarchy. Level 1 investment securities include U.S. Treasury and exchange-traded securities. 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 MLHFS measured at fair value, for which an active secondary market and readily available market prices exist, are initially valued at the transaction price and are subsequently valued by comparison to instruments with similar collateral and risk profiles. MLHFS are classified within Level 2. Included in mortgage banking revenue was a net gain of $18 million and a net loss of $51 million for the three months ended March 31, 2019 and 2018, respectively, from the changes to fair value of these MLHFS under fair value option accounting guidance. Changes in fair value due to instrument specific credit risk were immaterial. Interest income for MLHFS is measured based on contractual interest rates and reported as interest income on the Consolidated Statement of Income. Electing to measure MLHFS at fair value reduces certain timing differences and better matches changes in fair value of these assets with changes in the value of the derivative instruments used to economically hedge them without the burden of complying with the requirements for hedge accounting. Mortgage Servicing Rights MSRs are valued using a discounted cash flow methodology, and are classified within Level 3. The Company determines fair value of the MSRs by projecting future cash flows for different interest rate scenarios using prepayment rates and other assumptions, and discounts these cash flows using a risk adjusted rate based on option adjusted spread levels. There is minimal observable market activity for MSRs on comparable portfolios and, therefore, the determination of fair value requires significant management judgment. Refer to Note 7 for further information on MSR valuation assumptions. Derivatives The majority of derivatives held by the Company are executed over-the-counter 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 16 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 significant unobservable inputs used in the fair value measurement of the Company’s MSRs are expected prepayments and the option adjusted spread that is added to the risk-free rate to discount projected cash flows. Significant increases in either of these inputs in isolation would have resulted in a significantly lower fair value measurement. Significant decreases in either of these inputs in isolation would have resulted in a significantly higher fair value measurement. There is no direct interrelationship between prepayments and option adjusted spread. Prepayment rates generally move in the opposite direction of market interest rates. Option adjusted spread is generally impacted by changes in market return requirements. The following table shows the significant valuation assumption ranges for MSRs at March 31, 2019: Minimum Maximum Weighted Expected prepayment 8 % 18 % 11 % Option adjusted spread 7 10 8 (a) Determined based on the relative fair value of the related mortgage loans serviced. Derivatives The Company has two distinct Level 3 derivative portfolios: (i) the Company’s commitments to purchase and originate mortgage loans that meet the requirements of a derivative and (ii) the Company’s asset/liability and customer-related derivatives that are Level 3 due to unobservable inputs related to measurement of risk of nonperformance by the counterparty. In addition, the Company’s Visa swaps are classified within Level 3. 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 March 31, 2019: Minimum Maximum Weighted Expected loan close rate 3 % 100 % 79 % Inherent MSR value (basis points per loan) 17 202 127 (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 market rates, volatility, market implied credit spreads, and loss recovery rates, as well as the Company’s assessment of the counterparty’s credit position. At March 31, 2019, the minimum, maximum and weighted average credit valuation adjustment as a percentage of the derivative contract fair value prior to adjustment was 0 percent, 113 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 March 31, 2019 Available-for-sale U.S. Treasury and agencies $ 18,266 $ 653 $ – $ – $ 18,919 Mortgage-backed securities Residential agency – 41,879 – – 41,879 Commercial agency – 2 – – 2 Other asset-backed securities – 395 – – 395 Obligations of state and political subdivisions – 6,918 – – 6,918 Total available-for-sale 18,266 49,847 – – 68,113 Mortgage loans held for sale – 2,690 – – 2,690 Mortgage servicing rights – – 2,656 – 2,656 Derivative assets – 1,405 812 (872 ) 1,345 Other assets 249 1,724 – – 1,973 Total $ 18,515 $ 55,666 $ 3,468 $ (872 ) $ 76,777 Derivative liabilities $ 8 $ 1,242 $ 357 $ (796 ) $ 811 Short-term borrowings and other liabilities (a) 189 1,283 – – 1,472 Total $ 197 $ 2,525 $ 357 $ (796 ) $ 2,283 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 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 March 31, 2019 and December 31, 2018. The Company has not recorded impairments or adjustments for observable price changes on these equity investments during the first three months of 2019 and 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 three months ended March 31: (Dollars in Millions) Beginning Net Gains Purchases Sales Issuances Settlements End Net Change in 2019 Mortgage servicing rights $ 2,791 $ (214 ) (a) $ 1 $ – $ 78 (c) $ – $ 2,656 $ (214 ) (a) Net derivative assets and liabilities 80 363 (b) 1 (7 ) – 18 455 424 (d) 2018 Mortgage servicing rights $ 2,645 $ 33 (a) $ 2 $ – $ 100 (c) $ – $ 2,780 $ 33 (a) Net derivative assets and liabilities 107 (251 ) (e) 1 (6 ) – 17 (132 ) (212 ) (f) (a) Included in mortgage banking revenue. (b) Approximately $280 million included in other noninterest income and $83 million included in mortgage banking revenue. (c) Represents MSRs capitalized during the period. (d) Approximately $388 million included in other noninterest income and $36 million included in mortgage banking revenue. (e) Approximately $(271) million included in other noninterest income and $20 million included in mortgage banking revenue. (f) Approximately $(240) million included in other noninterest income and $28 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 the reporting date: March 31, 2019 December 31, 2018 (Dollars in Millions) Level 1 Level 2 Level 3 Total Level 1 Level 2 Level 3 Total Loans (a) $ – $ – $ 247 $ 247 $ – $ – $ 40 $ 40 Other assets (b) – – 15 15 – – 57 57 (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 three months ended March 31: (Dollars in Millions) 2019 2018 Loans (a) $ 44 $ 23 Other assets (b) 3 5 (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: March 31, 2019 December 31, 2018 (Dollars in Millions) Fair Aggregate Carrying Fair Aggregate Carrying Total loans $ 2,690 $ 2,596 $ 94 $ 2,035 $ 1,972 $ 63 Nonaccrual loans 2 2 – 2 2 – Loans 90 days or more past due – – – – – – Fair Value of Financial Instruments The following section summarizes the estimated fair value for financial instruments accounted for at amortized cost as of March 31, 2019 and December 31, 2018. 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 are shown in the table below: March 31, 2019 December 31, 2018 Carrying Fair Value Carrying 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 $ 18,115 $ 18,115 $ – $ – $ 18,115 $ 21,453 $ 21,453 $ – $ – $ 21,453 Federal funds sold and securities purchased under resale agreements 3,868 – 3,868 – 3,868 306 – 306 – 306 Investment securities held-to-maturity 46,285 4,495 41,228 12 45,735 46,050 4,594 40,359 11 44,964 Loans held for sale (a) 35 – – 35 35 21 – – 21 21 Loans 283,709 – – 286,873 286,873 282,837 – – 284,790 284,790 Other 2,065 – 1,008 1,057 2,065 2,412 – 1,241 1,171 2,412 Financial Liabilities Time deposits 47,051 – 46,912 – 46,912 44,554 – 44,140 – 44,140 Short-term borrowings (b) 13,924 – 13,691 – 13,691 12,921 – 12,678 – 12,678 Long-term debt 40,680 – 40,705 – 40,705 41,340 – 41,003 – 41,003 Other 3,463 – 1,396 2,067 3,463 1,726 – – 1,726 1,726 (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	3 Months Ended
	Mar. 31, 2019
Commitments and Contingencies Disclosure [Abstract]
Guarantees and Contingent Liabilities	Note 16 Guarantees and Contingent Liabilities Visa Restructuring and Card Association Litigation The Company’s payment services business issues credit and debit cards and acquires credit and debit card transactions through the Visa U.S.A. Inc. card association or its affiliates (collectively “Visa”). In 2007, Visa completed a restructuring and issued shares of Visa Inc. common stock to its financial institution members in contemplation of its initial public offering (“IPO”) completed in the first quarter of 2008 (the “Visa Reorganization”). As a part of the Visa Reorganization, the Company received its proportionate number of shares of Visa Inc. common stock, which were subsequently converted to Class B shares of Visa Inc. (“Class B shares”). 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. During the three months ended March 31, 2019, the Company sold 0.4 million of its Class B shares. Upon final settlement of the Visa Litigation, the remaining 0.9 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 15. Other Guarantees and Contingent Liabilities The following table is a summary of other guarantees and contingent liabilities of the Company at March 31, 2019: (Dollars in Millions) Collateral Carrying Maximum Standby letters of credit $ – $ 52 $ 11,177 Third party borrowing arrangements – – 12 Securities lending indemnifications 5,444 – 5,350 Asset sales – 115 7,328 (a) Merchant processing 1,884 64 105,793 Tender option bond program guarantee 2,480 – 2,329 Minimum revenue guarantees – – 3 Other – 109 1,370 (a) 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. Merchant Processing The Company, through its subsidiaries, provides merchant processing services. Under the rules of credit card associations, a merchant processor retains a contingent liability for credit card transactions processed. This contingent liability arises in the event of a billing dispute between the merchant and a cardholder that is ultimately resolved in the cardholder’s favor. In this situation, the transaction is “charged-back” to the merchant and the disputed amount is credited or otherwise refunded to the cardholder. If the Company is unable to collect this amount from the merchant, it bears the loss for the amount of the refund paid to the cardholder. The Company currently processes card transactions in the United States, Canada, Europe and Mexico through wholly-owned subsidiaries and a network of 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 March 31, 2019, the value of airline tickets purchased to be delivered at a future date through card transactions processed by the Company was $11.9 billion. The Company held collateral of $1.1 billion 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 March 31, 2019, the liability was $50 million primarily related to these airline processing arrangements. Asset Sales 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 March 31, 2019, the Company had reserved $10 million for potential losses from representation and warranty obligations, compared with $10 million at December 31, 2018. 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 March 31, 2019 and December 31, 2018, the Company had $17 million and $15 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. 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. Residential Mortgage-Backed Securities Litigation In the last several years, the Company and other large financial institutions have been sued in their capacity as trustee for residential mortgage–backed securities trusts. In the lawsuits brought against the Company, the investors allege that the Company’s banking subsidiary, U.S. Bank National Association (“U.S. Bank”), as trustee caused them to incur substantial losses by failing to enforce loan repurchase obligations and failing to abide by appropriate standards of care after events of default allegedly occurred. The plaintiffs in these matters seek monetary damages in unspecified amounts and most also seek equitable relief. Regulatory Matters The Company is continually subject to examinations, inquiries and investigations in areas of heightened regulatory scrutiny, such as compliance, risk management, third party risk management and consumer protection. For example, the Company is currently subject to examinations, inquiries and investigations by government agencies and bank regulators concerning mortgage-related practices, including those related to lender-placed insurance, and notices and filings in bankruptcy cases. The Company is cooperating fully with all pending examinations, inquiries and investigations, any of which could lead to administrative or legal proceedings or settlements. Remedies in these proceedings or settlements may include fines, penalties, restitution or alterations in the Company’s business practices (which may increase the Company’s operating expenses and decrease its revenue). 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 Due to their complex nature, it can be years before litigation and regulatory matters are resolved. The Company may be unable to develop an estimate or range of loss where matters are in early stages, there are significant factual or legal issues to be resolved, damages are unspecified or uncertain, or there is uncertainty as to a litigation class being certified or the outcome of pending motions, appeals or proceedings. For those litigation and regulatory matters where the Company has information to develop an estimate or range of loss, the Company believes the upper end of the range of reasonably possible losses in aggregate, in excess of any reserves established for matters where a loss is considered probable, will not be material to its financial condition, results of operations or cash flows. The Company’s estimates are subject to significant judgment and uncertainties, and the matters underlying the estimates will change from time to time. Actual results may vary significantly from the current estimates.

Subsequent Events

Subsequent Events	3 Months Ended
	Mar. 31, 2019
Subsequent Events [Abstract]
Subsequent Events	Note 17 Subsequent Events The Company has evaluated the impact of events that have occurred subsequent to March 31, 2019 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.

Basis of Presentation (Policies

Basis of Presentation (Policies)	3 Months Ended
	Mar. 31, 2019
Accounting Policies [Abstract]
Basis of Presentation	The accompanying consolidated financial statements have been prepared in accordance with the instructions to Form 10-Q Form 10-K Accounting policies for the lines of business are generally the same as those used in preparation of the consolidated financial statements with respect to activities specifically attributable to each business line. However, the preparation of business line results requires management to establish methodologies to allocate funding costs, expenses and other financial elements to each line of business. Table 11 “Line of Business Financial Performance” included in Management’s Discussion and Analysis provides details of segment results. This information is incorporated by reference into these Notes to Consolidated Financial Statements.
Accounting Changes	Accounting for Leases Effective January 1, 2019, the Company adopted accounting guidance, issued by the Financial Accounting Standards Board (“FASB”) in February 2016, related to the accounting for leases. This guidance requires lessees to recognize all leases on the Consolidated Balance Sheet as lease assets and lease liabilities based primarily on the present value of future lease payments. The Company recognized approximately $1.3 billion of lease assets and related liabilities on its Consolidated Balance Sheet at the adoption date. In addition, lessors are now required to consider lease residual exposures of sales-type and direct financing leases when determining the allowance for credit losses. The adoption of this guidance was not material to the Company’s Consolidated Statement of Income. Financial Instruments—Credit Losses In June 2016, the FASB issued accounting guidance, effective for the Company no later than January 1, 2020, related to the impairment of financial instruments. This guidance changes existing impairment recognition to a model that is based on expected losses rather than incurred losses, which is intended to result in more timely recognition of credit losses. This guidance is also intended to reduce the complexity of current accounting guidance by decreasing the number of credit impairment models that entities use to account for debt instruments. A modified retrospective approach is required at adoption with a cumulative effect adjustment to retained earnings as of the adoption date. The guidance also requires additional credit quality disclosures for loans. The Company is currently evaluating the impact of this guidance on its financial statements, and expects its allowance for credit losses to increase upon adoption. The extent of this increase will continue to be evaluated and will depend on economic conditions and the composition of the Company’s loan portfolio at the time of adoption.
Loans and Allowance for Credit Losses	Allowance for Credit Losses The allowance for credit losses is established for probable and estimable losses incurred in the Company’s loan and lease portfolio, including unfunded credit commitments. The allowance for credit losses is increased through provisions charged to earnings and reduced by net charge-offs. Management evaluates the adequacy of the allowance for incurred losses on a quarterly basis. 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 The credit quality of the Company’s loan portfolios is assessed as a function of net credit losses, levels of nonperforming assets and delinquencies, and credit quality ratings as defined by the Company. 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. 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. Impaired loans include all nonaccrual and TDR loans. For all loan classes, interest income on TDR loans is recognized under the modified terms and conditions if the borrower has demonstrated repayment performance at a level commensurate with the modified terms over several payment cycles. Interest income is generally not recognized on other impaired loans until the loan is paid off. However, interest income may be recognized for interest payments if the remaining carrying amount of the loan is believed to be collectible. 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. Troubled Debt Restructurings In certain circumstances, the Company may modify the terms of a loan to maximize the collection of amounts due when a borrower is experiencing financial difficulties or is expected to experience difficulties in the near-term. Concessionary modifications are classified as TDRs unless the modification results in only an insignificant delay in payments to be received. The Company recognizes interest on TDRs if the borrower complies with the revised terms and conditions as agreed upon with the Company and has demonstrated repayment performance at a level commensurate with the modified terms over several payment cycles, which is generally six months or greater. To the extent a previous restructuring was insignificant, the Company considers the cumulative effect of past restructurings related to the receivable when determining whether a current restructuring is a TDR. Loans classified as TDRs are considered impaired loans for reporting and measurement purposes. 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.
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 contracts typically include offsetting rights (referred to as netting arrangements), and depending on expected volume, credit risk, and counterparty preference, collateral maintenance may be required. For all derivatives under collateral support arrangements, fair value is determined daily and, depending on the collateral maintenance requirements, the Company and a counterparty may receive or deliver collateral, based upon the net fair value of all derivative positions between the Company and the counterparty. Collateral is typically cash, but securities may be allowed under collateral arrangements with certain counterparties. Receivables and payables related to cash collateral are included in other assets and other liabilities on the Consolidated Balance Sheet, along with the related derivative asset and liability fair values. Any securities pledged to counterparties as collateral remain on the Consolidated Balance Sheet. Securities received from counterparties as collateral are not recognized on the Consolidated Balance Sheet, unless the counterparty defaults. In general, securities used as collateral can be sold, repledged or otherwise used by the party in possession. No restrictions exist on the use of cash collateral by either party. 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.

Basis of Presentation (Tables)

Basis of Presentation (Tables)	3 Months Ended
	Mar. 31, 2019
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Line of Business Financial Performance	Table 11 Line of Business Financial Performance Corporate and Consumer and Three Months Ended March 31 2019 2018 Percent 2019 2018 Percent Condensed Income Statement Net interest income (taxable-equivalent basis) $ 725 $ 722 .4 % $ 1,568 $ 1,512 3.7 % Noninterest income 210 207 1.4 533 571 (6.7 ) Securities gains (losses), net – – – – – – Total net revenue 935 929 .6 2,101 2,083 .9 Noninterest expense 411 396 3.8 1,286 1,296 (.8 ) Other intangibles 1 1 – 5 7 (28.6 ) Total noninterest expense 412 397 3.8 1,291 1,303 (.9 ) Income before provision and income taxes 523 532 (1.7 ) 810 780 3.8 Provision for credit losses (11 ) 14 * 70 55 27.3 Income before income taxes 534 518 3.1 740 725 2.1 Income taxes and taxable-equivalent adjustment 134 130 3.1 185 181 2.2 Net income 400 388 3.1 555 544 2.0 Net (income) loss attributable to noncontrolling interests – – – – – – Net income attributable to U.S. Bancorp $ 400 $ 388 3.1 $ 555 $ 544 2.0 Average Balance Sheet Commercial $ 77,761 $ 74,755 4.0 % $ 9,451 $ 9,651 (2.1 )% Commercial real estate 18,644 19,131 (2.5 ) 16,005 16,419 (2.5 ) Residential mortgages 6 6 – 61,906 57,049 8.5 Credit card – – – – – – Other retail – – – 54,395 54,925 (1.0 ) Total loans, excluding covered loans 96,411 93,892 2.7 141,757 138,044 2.7 Covered loans – – – – 3,048 * Total loans 96,411 93,892 2.7 141,757 141,092 .5 Goodwill 1,647 1,647 – 3,475 3,632 (4.3 ) Other intangible assets 9 12 (25.0 ) 2,882 2,871 .4 Assets 105,144 102,582 2.5 154,743 155,488 (.5 ) Noninterest-bearing deposits 29,979 34,278 (12.5 ) 26,570 27,210 (2.4 ) Interest checking 11,753 9,491 23.8 51,149 49,299 3.8 Savings products 41,145 43,926 (6.3 ) 61,395 61,292 .2 Time deposits 18,195 16,522 10.1 14,798 12,570 17.7 Total deposits 101,072 104,217 (3.0 ) 153,912 150,371 2.4 Total U.S. Bancorp shareholders’ equity 10,439 10,416 .2 11,747 11,842 (.8 ) * Not meaningful (a) Presented net of related rewards and rebate costs and certain partner payments of $529 million and $534 million for the three months ended March 31, 2019 and 2018, respectively. (b) Includes revenue generated from certain contracts with customers of $1.7 billion and $1.8 billion for the three months ended March 31, 2019 and 2018, respectively. Wealth Management and Payment Treasury and Corporate Support Consolidated Company 2019 2018 Percent 2019 2018 Percent 2019 2018 Percent 2019 2018 Percent $ 288 $ 275 4.7 % $ 622 $ 611 1.8 % $ 83 $ 77 7.8 % $ 3,286 $ 3,197 2.8 % 430 431 (.2 ) 853 (a) 848 (a) .6 260 210 23.8 2,286 (b) 2,267 (b) .8 – – – – – – 5 5 – 5 5 – 718 706 1.7 1,475 1,459 1.1 348 292 19.2 5,577 5,469 2.0 435 423 2.8 728 708 2.8 187 193 (3.1 ) 3,047 3,016 1.0 3 4 (25.0 ) 31 27 14.8 – – – 40 39 2.6 438 427 2.6 759 735 3.3 187 193 (3.1 ) 3,087 3,055 1.0 280 279 .4 716 724 (1.1 ) 161 99 62.6 2,490 2,414 3.1 (3) 1 * 286 272 5.1 35 (1 ) * 377 341 10.6 283 278 1.8 430 452 (4.9 ) 126 100 26.0 2,113 2,073 1.9 71 70 1.4 108 113 (4.4 ) (93 ) (103 ) 9.7 405 391 3.6 212 208 1.9 322 339 (5.0 ) 219 203 7.9 1,708 1,682 1.5 – – – – – – (9 ) (7 ) (28.6 ) (9 ) (7 ) (28.6 ) $ 212 $ 208 1.9 $ 322 $ 339 (5.0 ) $ 210 $ 196 7.1 $ 1,699 $ 1,675 1.4 $ 3,921 $ 3,661 7.1 % $ 9,441 $ 8,354 13.0 % $ 1,386 $ 1,044 32.8 % $ 101,960 $ 97,465 4.6 % 504 511 (1.4 ) – – – 4,317 4,305 .3 39,470 40,366 (2.2 ) 3,670 3,113 17.9 – – – – 6 * 65,582 60,174 9.0 – – – 22,597 21,284 6.2 – – – 22,597 21,284 6.2 1,730 1,699 1.8 376 424 (11.3 ) – 3 * 56,501 57,051 (1.0 ) 9,825 8,984 9.4 32,414 30,062 7.8 5,703 5,358 6.4 286,110 276,340 3.5 – – – – – – – – – – 3,048 * 9,825 8,984 9.4 32,414 30,062 7.8 5,703 5,358 6.4 286,110 279,388 2.4 1,617 1,619 (.1 ) 2,814 2,542 10.7 – – – 9,553 9,440 1.2 54 70 (22.9 ) 513 396 29.5 – – – 3,458 3,349 3.3 13,187 12,026 9.7 38,618 36,161 6.8 151,707 148,031 2.5 463,399 454,288 2.0 13,293 14,361 (7.4 ) 1,157 1,127 2.7 2,434 2,506 (2.9 ) 73,433 79,482 (7.6 ) 9,175 11,525 (20.4 ) – – – 100 43 * 72,177 70,358 2.6 41,127 41,747 (1.5 ) 109 103 5.8 872 687 26.9 144,648 147,755 (2.1 ) 3,806 3,700 2.9 2 3 (33.3 ) 8,307 4,190 98.3 45,108 36,985 22.0 67,401 71,333 (5.5 ) 1,268 1,233 2.8 11,713 7,426 57.7 335,366 334,580 .2 2,515 2,451 2.6 7,024 6,621 6.1 19,864 17,495 13.5 51,589 48,825 5.7

Investment Securities (Tables)

Investment Securities (Tables)	3 Months Ended
	Mar. 31, 2019
Investments, Debt and Equity Securities [Abstract]
Investment Securities	Table 4 Investment Securities Available-for-Sale Held-to-Maturity At March 31, 2019 Amortized Fair Value Weighted- Weighted- Amortized Fair Value Weighted- Weighted- U.S. Treasury and Agencies Maturing in one year or less $ 2,064 $ 2,056 .4 1.51 % $ 500 $ 498 .3 1.72 % Maturing after one year through five years 16,534 16,339 2.6 1.77 3,901 3,820 4.1 1.71 Maturing after five years through ten years 529 524 7.2 2.80 530 524 6.5 2.45 Maturing after ten years – – – – – – – – Total $ 19,127 $ 18,919 2.5 1.77 % $ 4,931 $ 4,842 4.0 1.79 % Mortgage-Backed Securities (a) Maturing in one year or less $ 19 $ 19 .6 3.10 % $ 158 $ 156 .8 2.08 % Maturing after one year through five years 25,789 25,578 3.9 2.66 26,001 25,672 3.8 2.49 Maturing after five years through ten years 14,104 13,923 5.9 2.70 14,860 14,726 5.9 2.79 Maturing after ten years 2,357 2,361 13.3 3.50 308 307 12.9 3.44 Total $ 42,269 $ 41,881 5.1 2.72 % $ 41,327 $ 40,861 4.6 2.61 % Asset-Backed Securities (a) Maturing in one year or less $ – $ – – – % $ – $ – – – % Maturing after one year through five years 389 395 3.4 3.77 4 8 3.3 3.20 Maturing after five years through ten years – – – – 1 1 6.1 3.30 Maturing after ten years – – – – – 1 14.8 3.19 Total $ 389 $ 395 3.4 3.77 % $ 5 $ 10 3.6 3.21 % Obligations of State and Political Maturing in one year or less $ 266 $ 268 .3 5.65 % $ – $ – .8 7.47 % Maturing after one year through five years 571 585 3.4 4.53 1 1 3.3 6.49 Maturing after five years through ten years 5,192 5,299 7.7 4.30 4 4 7.0 2.42 Maturing after ten years 785 766 20.4 4.04 – – – – Total $ 6,814 $ 6,918 8.6 4.34 % $ 5 $ 5 6.5 2.87 % Other Maturing in one year or less $ – $ – – – % $ 9 $ 9 .3 3.68 % Maturing after one year through five years – – – – 8 8 1.1 3.44 Maturing after five years through ten years – – – – – – – – Maturing after ten years – – – – – – – – Total $ – $ – – – % $ 17 $ 17 .7 3.56 % Total investment securities (d) $ 68,599 $ 68,113 4.7 2.62 % $ 46,285 $ 45,735 4.5 2.52 % (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. Yields on available-for-sale held-to-maturity available-for-sale held-to-maturity. March 31, 2019 December 31, 2018 (Dollars in Millions) Amortized Percent Amortized Percent U.S. Treasury and agencies $ 24,058 20.9 % $ 24,706 21.8 % Mortgage-backed securities 83,596 72.8 81,464 71.8 Asset-backed securities 394 .4 402 .4 Obligations of state and political subdivisions 6,819 5.9 6,842 6.0 Other 17 – 17 – Total investment securities $ 114,884 100.0 % $ 113,431 100.0 %
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 March 31, 2019 December 31, 2018 Unrealized Losses Unrealized Losses (Dollars in Millions) Amortized Unrealized Other-than- Other (b) Fair Amortized Unrealized Other-than- Other (b) Fair Held-to-maturity U.S. Treasury and agencies $ 4,931 $ 3 $ – $ (92 ) $ 4,842 $ 5,102 $ 2 $ – $ (143 ) $ 4,961 Residential agency mortgage-backed securities 41,327 103 – (569 ) 40,861 40,920 45 – (994 ) 39,971 Asset-backed securities Collateralized debt obligations/Collateralized loan obligations – 3 – – 3 – 1 – – 1 Other 5 2 – – 7 5 2 – – 7 Obligations of state and political subdivisions 5 – – – 5 6 1 – – 7 Obligations of foreign governments 9 – – – 9 9 – – – 9 Other 8 – – – 8 8 – – – 8 Total held-to-maturity $ 46,285 $ 111 $ – $ (661 ) $ 45,735 $ 46,050 $ 51 $ – $ (1,137 ) $ 44,964 (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 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 $ 19,127 $ 17 $ – $ (225 ) $ 18,919 $ 19,604 $ 11 $ – $ (358 ) $ 19,257 Mortgage-backed securities Residential agency 42,267 153 – (541 ) 41,879 40,542 120 – (910 ) 39,752 Commercial agency 2 – – – 2 2 – – – 2 Other asset-backed securities 389 6 – – 395 397 6 – – 403 Obligations of state and political subdivisions 6,814 138 – (34 ) 6,918 6,836 37 – (172 ) 6,701 Total available-for-sale $ 68,599 $ 314 $ – $ (800 ) $ 68,113 $ 67,381 $ 174 $ – $ (1,440 ) $ 66,115 (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 Three Months Ended March 31 (Dollars in Millions) 2019 2018 Taxable $ 650 $ 561 Non-taxable 55 52 Total interest income from investment securities $ 705 $ 613
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 Three Months Ended March 31 (Dollars in Millions) 2019 2018 Realized gains $ 5 $ 5 Realized losses – – Net realized gains (losses) $ 5 $ 5 Income tax (benefit) on net realized gains (losses) $ 2 $ 1
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 March 31, 2019: Less Than 12 Months 12 Months or Greater Total (Dollars in Millions) Fair Unrealized Fair Unrealized Fair Unrealized Held-to-maturity U.S. Treasury and agencies $ – $ – $ 4,449 $ (92 ) $ 4,449 $ (92 ) Residential agency mortgage-backed securities 1,632 (6 ) 27,456 (563 ) 29,088 (569 ) Other asset-backed securities – – 1 – 1 – Obligations of foreign governments 3 – – – 3 – Total held-to-maturity $ 1,635 $ (6 ) $ 31,906 $ (655 ) $ 33,541 $ (661 ) Available-for-sale U.S. Treasury and agencies $ 21 $ – $ 17,478 $ (225 ) $ 17,499 $ (225 ) Residential agency mortgage-backed securities 4,470 (18 ) 24,097 (523 ) 28,567 (541 ) Commercial agency mortgage-backed securities – – 2 – 2 – Obligations of state and political subdivisions – – 1,686 (34 ) 1,686 (34 ) Total available-for-sale $ 4,491 $ (18 ) $ 43,263 $ (782 ) $ 47,754 $ (800 )

Loans and Allowance for Credi_2

Loans and Allowance for Credit Losses (Tables)	3 Months Ended
	Mar. 31, 2019
Receivables [Abstract]
Composition of Loan Portfolio	The composition of the loan portfolio, disaggregated by class and underlying specific portfolio type, was as follows: March 31, 2019 December 31, 2018 (Dollars in Millions) Amount Percent Amount Percent Commercial Commercial $ 97,552 33.9 % $ 96,849 33.8 % Lease financing 5,517 1.9 5,595 2.0 Total commercial 103,069 35.8 102,444 35.7 Commercial Real Estate Commercial mortgages 28,416 9.9 28,596 10.0 Construction and development 11,005 3.8 10,943 3.8 Total commercial real estate 39,421 13.7 39,539 13.9 Residential Mortgages Residential mortgages 54,552 18.9 53,034 18.5 Home equity loans, first liens 11,691 4.1 12,000 4.2 Total residential mortgages 66,243 23.0 65,034 22.7 Credit Card 22,268 7.8 23,363 8.1 Other Retail Retail leasing 8,612 3.0 8,546 3.0 Home equity and second mortgages 15,883 5.5 16,122 5.6 Revolving credit 2,934 1.0 3,088 1.1 Installment 10,030 3.5 9,676 3.4 Automobile 18,976 6.6 18,719 6.5 Student 263 .1 279 .1 Total other retail 56,698 19.7 56,430 19.7 Total loans $ 287,699 100.0 % $ 286,810 100.0 %
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, 2018 $ 1,454 $ 800 $ 455 $ 1,102 $ 630 $ – $ 4,441 Add Provision for credit losses 64 12 (7 ) 238 70 – 377 Deduct Loans charged-off 111 1 8 257 96 – 473 Less recoveries of loans charged-off (38 ) (1 ) (5 ) (32 ) (30 ) – (106 ) Net loans charged-off 73 – 3 225 66 – 367 Balance at March 31, 2019 $ 1,445 $ 812 $ 445 $ 1,115 $ 634 $ – $ 4,451 Balance at December 31, 2017 $ 1,372 $ 831 $ 449 $ 1,056 $ 678 $ 31 $ 4,417 Add Provision for credit losses 74 (8 ) 1 219 60 (5 ) 341 Deduct Loans charged-off 94 3 13 248 95 – 453 Less recoveries of loans charged-off (34 ) (6 ) (6 ) (37 ) (29 ) – (112 ) Net loans charged-off 60 (3 ) 7 211 66 – 341 Balance at March 31, 2018 $ 1,386 $ 826 $ 443 $ 1,064 $ 672 $ 26 $ 4,417
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 Total Allowance Balance at March 31, 2019 Related to Loans individually evaluated for impairment (a) $ 31 $ 2 $ – $ – $ – $ 33 TDRs collectively evaluated for impairment 18 4 117 74 12 225 Other loans collectively evaluated for impairment 1,396 806 313 1,041 622 4,178 Loans acquired with deteriorated credit quality – – 15 – – 15 Total allowance for credit losses $ 1,445 $ 812 $ 445 $ 1,115 $ 634 $ 4,451 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 (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 Total March 31, 2019 Loans individually evaluated for impairment (a) $ 284 $ 76 $ – $ – $ – $ 360 TDRs collectively evaluated for impairment 160 143 3,158 254 190 3,905 Other loans collectively evaluated for impairment 102,625 39,171 62,785 22,014 56,508 283,103 Loans acquired with deteriorated credit quality – 31 300 – – 331 Total loans $ 103,069 $ 39,421 $ 66,243 $ 22,268 $ 56,698 $ 287,699 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 (a) Represents loans greater than $5 million classified as nonperforming or TDRs.
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 March 31, 2019 Commercial $ 102,125 $ 596 $ 77 $ 271 $ 103,069 Commercial real estate 39,248 43 3 127 39,421 Residential mortgages (a) 65,666 168 122 287 66,243 Credit card 21,690 290 288 – 22,268 Other retail 56,045 375 105 173 56,698 Total loans $ 284,774 $ 1,472 $ 595 $ 858 $ 287,699 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 (a) At March 31, 2019, $418 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 $430 million and $1.7 billion at December 31, 2018, 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 March 31, 2019 Commercial $ 100,888 $ 969 $ 1,212 $ 2,181 $ 103,069 Commercial real estate 38,368 532 521 1,053 39,421 Residential mortgages (b) 65,779 – 464 464 66,243 Credit card 21,980 – 288 288 22,268 Other retail 56,385 6 307 313 56,698 Total loans $ 283,400 $ 1,507 $ 2,792 $ 4,299 $ 287,699 Total outstanding commitments $ 607,486 $ 2,191 $ 3,405 $ 5,596 $ 613,082 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 (a) Classified rating on consumer loans primarily based on delinquency status. (b) At March 31, 2019, $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 $1.7 billion and $1.6 billion at December 31, 2018, 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 Unpaid Valuation Commitments March 31, 2019 Commercial $ 502 $ 1,096 $ 50 $ 136 Commercial real estate 266 619 7 – Residential mortgages 1,684 1,843 82 – Credit card 254 254 74 – Other retail 325 400 15 3 Total loans, excluding loans purchased from GNMA mortgage pools 3,031 4,212 228 139 Loans purchased from GNMA mortgage pools 1,578 1,578 36 – Total $ 4,609 $ 5,790 $ 264 $ 139 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 (a) Substantially all loans classified as impaired at March 31, 2019 and December 31, 2018, had an associated allowance for credit losses.
Impaired Loans Average Recorded Investment and Interest Income Recognized	Additional information on impaired loans follows: 2019 2018 Three Months Ended March 31 (Dollars in Millions) Average Interest Average Interest Commercial $ 485 $ 1 $ 545 $ 1 Commercial real estate 273 2 267 2 Residential mortgages 1,697 24 1,914 20 Credit card 249 – 232 1 Other retail 330 3 300 4 Covered Loans – – 38 – Total loans, excluding loans purchased from GNMA mortgage pools 3,034 30 3,296 28 Loans purchased from GNMA mortgage pools 1,609 17 1,624 12 Total $ 4,643 $ 47 $ 4,920 $ 40
Summary of Loans Modified as TDRs	The following table provides a summary of loans modified as TDRs during the periods presented by portfolio class: 2019 2018 Three Months Ended March 31 (Dollars in Millions) Number Pre-Modification Post-Modification Number Pre-Modification Post-Modification Commercial 913 $ 36 $ 29 623 $ 81 $ 75 Commercial real estate 20 47 46 29 16 16 Residential mortgages 96 14 13 148 17 16 Credit card 9,648 50 51 8,546 43 43 Other retail 573 11 10 559 11 10 Total loans, excluding loans purchased from GNMA mortgage pools 11,250 158 149 9,905 168 160 Loans purchased from GNMA mortgage pools 1,538 203 195 888 117 113 Total loans 12,788 $ 361 $ 344 10,793 $ 285 $ 273
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 2019 2018 Three Months Ended March 31 (Dollars in Millions) Number Amount Number Amount Commercial 234 $ 5 239 $ 9 Commercial real estate 8 6 8 4 Residential mortgages 96 10 56 4 Credit card 2,054 9 2,036 9 Other retail 147 7 77 1 Covered loans – – 1 – Total loans, excluding loans purchased from GNMA mortgage pools 2,539 37 2,417 27 Loans purchased from GNMA mortgage pools 124 17 232 31 Total loans 2,663 $ 54 2,649 $ 58

Leases (Tables)

Leases (Tables)	3 Months Ended
	Mar. 31, 2019
Text Block [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 were as follows: (Dollars in Millions) March 31, December 31, Lease receivables $ 12,204 $ 12,207 Unguaranteed residual values accruing to the lessor’s benefit 1,898 1,877 Total net investment in sales-type and direct financing leases $ 14,102 $ 14,084
Contractual Future Lease Payments to be Received	The contractual future lease payments to be received by the Company at March 31, 2019, were as follows: (Dollars in Millions) Sales-type and Operating leases One Year or Less $ 4,463 $ 181 Over One Through Two Years 3,998 145 Over Two Through Three Years 2,630 103 Over Three Through Four Years 1,286 68 Over Four Through Five Years 367 48 Thereafter 530 68 Total lease payments 13,274 $ 613 Amounts representing interest (1,070 ) Lease receivables $ 12,204
Summary of Amounts Relevant to Company's Assets Leased for Use in its Operations	The following table presents amounts relevant to the Company’s assets leased for use in its operations for the three months ended March 31, 2019: (Dollars in Millions) Cash paid for amounts included in the measurement of lease liabilities Operating cash flows from operating leases $ 75 Operating cash flows from finance leases 2 Financing cash flows from finance leases 3 Right of use assets obtained in exchange for new operating lease liabilities 36 Right of use assets obtained in exchange for new finance lease liabilities 1 Weighted-average remaining lease term of operating leases (in years) 7.8 Weighted-average remaining lease term of finance leases (in years) 10.7 Weighted-average discount rate of operating leases 3.3 % Weighted-average discount rate of finance leases 17.3 %
Schedule of Contractual Future Lease Obligations	The contractual future lease obligations of the Company at March 31, 2019, were as follows: (Dollars in Millions) Operating leases Finance leases One Year or Less $ 286 $ 17 Over One Through Two Years 260 15 Over Two Through Three Years 228 12 Over Three Through Four Years 191 10 Over Four Through Five Years 148 9 Thereafter 466 36 Total lease payments 1,579 99 Amounts representing interest (183 ) (34 ) Lease liabilities $ 1,396 $ 65

Accounting for Transfers and _2

Accounting for Transfers and Servicing of Financial Assets and Variable Interest Entities (Tables)	3 Months Ended
	Mar. 31, 2019
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 (Dollars in Millions) March 31, 2019 December 31, 2018 Investment carrying amount $ 5,836 $ 5,823 Unfunded capital and other commitments 2,708 2,778 Maximum exposure to loss 12,398 12,360

Mortgage Servicing Rights (Tabl

Mortgage Servicing Rights (Tables)	3 Months Ended
	Mar. 31, 2019
Text Block [Abstract]
Changes in Fair Value of Capitalized MSRs	Changes in fair value of capitalized MSRs are summarized as follows: Three Months Ended (Dollars in Millions) 2019 2018 Balance at beginning of period $ 2,791 $ 2,645 Rights purchased 1 2 Rights capitalized 78 100 Changes in fair value of MSRs Due to fluctuations in market interest rates (a) (119 ) 114 Due to revised assumptions or models (b) 11 24 Other changes in fair value (c) (106 ) (105 ) Balance at end of period $ 2,656 $ 2,780 (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 was as follows: March 31, 2019 December 31, 2018 (Dollars in Millions) Down Down Down Up Up Up Down Down Down Up Up Up MSR portfolio $ (598 ) $ (271 ) $ (128 ) $ 114 $ 213 $ 372 $ (501 ) $ (223 ) $ (105 ) $ 92 $ 171 $ 295 Derivative instrument hedges 538 269 132 (123 ) (232 ) (429 ) 455 215 104 (94 ) (177 ) (321 ) Net sensitivity $ (60 ) $ (2 ) $ 4 $ (9 ) $ (19 ) $ (57 ) $ (46 ) $ (8 ) $ (1 ) $ (2 ) $ (6 ) $ (26 )
MSRs and Related Characteristics by Portfolio	A summary of the Company’s MSRs and related characteristics by portfolio was as follows: March 31, 2019 December 31, 2018 (Dollars in Millions) HFA Government Conventional (d) Total HFA Government Conventional (d) Total Servicing portfolio (a) $ 45,133 $ 35,785 $ 147,361 $ 228,279 $ 44,384 $ 35,990 $ 148,910 $ 229,284 Fair value $ 510 $ 451 $ 1,695 $ 2,656 $ 526 $ 465 $ 1,800 $ 2,791 Value (bps) (b) 113 126 115 116 119 129 121 122 Weighted-average servicing fees (bps) 34 36 27 30 34 36 27 30 Multiple (value/servicing fees) 3.30 3.49 4.28 3.91 3.45 3.63 4.52 4.11 Weighted-average note rate 4.63 % 3.99 % 4.07 % 4.17 % 4.59 % 3.97 % 4.06 % 4.15 % Weighted-average age (in years) 3.4 4.8 4.7 4.5 3.3 4.7 4.5 4.3 Weighted-average expected prepayment (constant prepayment rate) 10.8 % 12.0 % 10.3 % 10.7 % 9.8 % 11.0 % 9.1 % 9.5 % Weighted-average expected life (in years) 7.2 6.3 6.6 6.7 7.7 6.7 7.1 7.2 Weighted-average option adjusted spread (c) 8.6 % 8.2 % 7.1 % 7.6 % 8.6 % 8.3 % 7.2 % 7.6 % (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.

Preferred Stock (Tables)

Preferred Stock (Tables)	3 Months Ended
	Mar. 31, 2019
Equity [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: March 31, 2019 December 31, 2018 (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 23,000 575 10 565 Total preferred stock (a) 209,510 $ 6,176 $ 192 $ 5,984 209,510 $ 6,176 $ 192 $ 5,984 (a) The par value of all shares issued and outstanding at March 31, 2019 and December 31, 2018, was $1.00 per share.

Accumulated Other Comprehensi_2

Accumulated Other Comprehensive Income (Loss) (Tables)	3 Months Ended
	Mar. 31, 2019
Equity [Abstract]
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 three months ended March 31, is as follows: (Dollars in Millions) Unrealized Gains Available-For- Unrealized Gains Available-For-Sale to Held-To- Maturity Unrealized Gains Unrealized Gains Foreign Total 2019 Balance at beginning of period $ (946 ) $ 14 $ 112 $ (1,418 ) $ (84 ) $ (2,322 ) Changes in unrealized gains and losses 785 – (74 ) – – 711 Foreign currency translation adjustment (a) – – – – 16 16 Reclassification to earnings of realized gains and losses (5 ) (1 ) (8 ) 22 – 8 Applicable income taxes (197 ) – 21 (6 ) (4 ) (186 ) Balance at end of period $ (363 ) $ 13 $ 51 $ (1,402 ) $ (72 ) $ (1,773 ) 2018 Balance at beginning of period $ (357 ) $ 17 $ 71 $ (1,066 ) $ (69 ) $ (1,404 ) Revaluation of tax related balances (b) (77 ) 4 15 (229 ) (13 ) (300 ) Changes in unrealized gains and losses (776 ) – 86 (3 ) – (693 ) Foreign currency translation adjustment (a) – – – – 13 13 Reclassification to earnings of realized gains and losses (5 ) (3 ) 3 34 – 29 Applicable income taxes 198 1 (23 ) (7 ) (7 ) 162 Balance at end of period $ (1,017 ) $ 19 $ 152 $ (1,271 ) $ (76 ) $ (2,193 ) (a) Represents the impact of changes in foreign currency exchange rates on the Company’s investment in foreign operations and related hedges. (b) 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.
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 three months ended March 31, is as follows: Impact to Net Income Affected Line Item in the (Dollars in Millions) 2019 2018 Unrealized gains (losses) on investment securities available-for-sale Realized gains (losses) on sale of investment securities $ 5 $ 5 Total securities gains (losses), net (2 ) (1 ) Applicable income taxes 3 4 Net-of-tax Unrealized gains (losses) on investment securities transferred from available-for-sale held-to-maturity Amortization of unrealized gains 1 3 Interest income – (1 ) Applicable income taxes 1 2 Net-of-tax Unrealized gains (losses) on derivative hedges Realized gains (losses) on derivative hedges 8 (3 ) Interest expense (2 ) 1 Applicable income taxes 6 (2 ) Net-of-tax Unrealized gains (losses) on retirement plans Actuarial gains (losses) and prior service cost (credit) amortization (22 ) (34 ) Other noninterest expense 6 8 Applicable income taxes (16 ) (26 ) Net-of-tax Total impact to net income $ (6 ) $ (22 )

Earnings Per Share (Tables)

Earnings Per Share (Tables)	3 Months Ended
	Mar. 31, 2019
Earnings Per Share [Abstract]
Components of Earnings Per Share	The components of earnings per share were: Three Months Ended (Dollars and Shares in Millions, Except Per Share Data) 2019 2018 Net income attributable to U.S. Bancorp $ 1,699 $ 1,675 Preferred dividends (79 ) (70 ) Earnings allocated to participating stock awards (7 ) (8 ) Net income applicable to U.S. Bancorp common shareholders $ 1,613 $ 1,597 Average common shares outstanding 1,602 1,652 Net effect of the exercise and assumed purchase of stock awards 3 5 Average diluted common shares outstanding 1,605 1,657 Earnings per common share $ 1.01 $ .97 Diluted earnings per common share $ 1.00 $ .96

Employee Benefits (Tables)

Employee Benefits (Tables)	3 Months Ended
	Mar. 31, 2019
Retirement Benefits [Abstract]
Components of Net Periodic Benefit Cost	The components of net periodic benefit cost for the Company’s retirement plans were: Three Months Ended March 31 Pension Plans Postretirement (Dollars in Millions) 2019 2018 2019 2018 Service cost $ 48 $ 52 $ – $ – Interest cost 62 56 1 1 Expected return on plan assets (95 ) (95 ) (1 ) (1 ) Prior service cost (credit) amortization – – (1 ) (1 ) Actuarial loss (gain) amortization 24 37 (1 ) (2 ) Net periodic benefit cost (a) $ 39 $ 50 $ (2 ) $ (3 ) (a) Service cost is included in employee benefits expense on the Consolidated Statement of Income. All other components are included in other noninterest expense on the Consolidated Statement of Income.

Income Taxes (Tables)

Income Taxes (Tables)	3 Months Ended
	Mar. 31, 2019
Income Tax Disclosure [Abstract]
Components of Income Tax Expense	The components of income tax expense were: Three Months Ended (Dollars in Millions) 2019 2018 Federal Current $ 220 $ 234 Deferred 116 19 Federal income tax 336 253 State Current 30 92 Deferred 12 17 State income tax 42 109 Total income tax provision $ 378 $ 362
Reconciliation of Expected Income Tax Expense at Federal Statutory Rate of 21 Percent to Company's Applicable Income Tax Expense	A reconciliation of expected income tax expense at the federal statutory rate of 21 percent to the Company’s applicable income tax expense follows: Three Months Ended (Dollars in Millions) 2019 2018 Tax at statutory rate $ 438 $ 429 State income tax, at statutory rates, net of federal tax benefit 84 89 Tax effect of Tax credits and benefits, net of related expenses (103 ) (115 ) Exam resolutions (49 ) (49 ) Tax-exempt (32 ) (32 ) Noncontrolling interests (2 ) (1 ) Other items 42 41 Applicable income taxes $ 378 $ 362

Derivative Instruments (Tables)

Derivative Instruments (Tables)	3 Months Ended
	Mar. 31, 2019
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- Notional Fair Weighted- March 31, 2019 Fair value hedges Interest rate contracts Receive fixed/pay floating swaps $ 1,300 $ – 4.77 $ – $ – – Cash flow hedges Interest rate contracts Pay fixed/receive floating swaps 3,892 10 5.48 6,450 3 1.29 Net investment hedges Foreign exchange forward contracts 447 2 .05 – – – Other economic hedges Interest rate contracts Futures and forwards Buy 5,062 34 .30 2,357 5 .04 Sell 2,936 21 .04 15,268 62 .47 Options Purchased 9,945 97 3.26 300 – 5.00 Written 1,105 30 .09 1,006 20 1.98 Receive fixed/pay floating swaps 7,101 – 10.61 2,226 – 11.27 Pay fixed/receive floating swaps 1,801 – 12.22 4,844 – 6.25 Foreign exchange forward contracts 324 1 .04 362 2 .04 Equity contracts 66 – .21 70 – .30 Credit contracts 2,377 1 3.25 5,257 3 4.00 Other (a) 210 3 .02 1,749 77 1.10 Total $ 36,566 $ 199 $ 39,889 $ 172 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 (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, $74 million and 1.25 years at March 31, 2019, respectively, compared to $1.5 billion, $84 million and 1.50 years at December 31, 2018, respectively. In addition, includes short-term underwriting purchase and sale commitments with total asset and liability notional values of $210 million at March 31, 2019, and $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- Notional Fair Weighted- March 31, 2019 Interest rate contracts Receive fixed/pay floating swaps $ 60,918 $ 1,140 6.53 $ 50,227 $ 220 3.76 Pay fixed/receive floating swaps 48,506 172 3.65 58,611 519 6.41 Other (a) 6,056 1 3.59 6,601 2 3.06 Options Purchased 44,629 34 1.36 1,296 42 9.33 Written 1,396 43 8.92 41,960 33 1.25 Futures Buy 1,085 1 1.28 – – – Sell – – – 3,634 3 .40 Foreign exchange rate contracts Forwards, spots and swaps 26,279 597 1.08 26,515 585 1.25 Options Purchased 1,763 30 .86 – – – Written – – – 1,763 30 .86 Credit contracts 30 – 5.23 756 1 5.23 Total $ 190,662 $ 2,018 $ 191,363 $ 1,435 December 31, 2018 Interest rate contracts Receive fixed/pay floating swaps $ 42,054 $ 754 6.73 $ 60,731 $ 456 4.32 Pay fixed/receive floating swaps 60,970 288 3.90 40,499 420 6.57 Other (a) 5,777 2 3.77 6.496 2 2.72 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 (a) Primarily represents floating rate interest rate swaps that pay based on differentials between specified interest rate indexes.
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) (Loss) Gains (Losses) (Dollars in Millions) 2019 2018 2019 2018 Asset and Liability Management Positions Cash flow hedges Interest rate contracts $ (55 ) $ 64 $ 6 $ (2 ) Net investment hedges Foreign exchange forward contracts 2 16 – – Non-derivative 16 (34 ) – – 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 Included in Interest Expense on Consolidated Statement of Income	The table below shows the effect of fair value and cash flow hedge accounting included in interest expense on the Consolidated Statement of Income for the three months ended March 31: (Dollars in Millions) 2019 2018 Total amount of interest expense presented in the Consolidated Statement of Income $ 1,092 $ 623 Asset and Liability Management Positions Fair value hedges Interest rate contract derivatives (21 ) (43 ) Hedged items 21 43 Cash Flow hedges Interest rate contract derivatives (8 ) 3 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 three months ended March 31, 2019 and 2018.
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 Hedged Assets Cumulative Hedging Adjustment (a) (Dollars in Millions) March 31, 2019 December 31, 2018 March 31, 2019 December 31, 2018 Line Item in the Consolidated Balance Sheet Long-term Debt $ 1,318 $ – $ 3 $ (27 ) (a) The cumulative hedging adjustment related to discontinued hedging relationships at March 31, 2019 and December 31, 2018 was $(17) million and $(27) million, respectively.
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 three months ended March 31: (Dollars in Millions) Location of Gains (Losses) 2019 2018 Asset and Liability Management Positions Other economic hedges Interest rate contracts Futures and forwards Mortgage banking revenue $ (17 ) $ 58 Purchased and written options Mortgage banking revenue 67 42 Swaps Mortgage banking revenue 111 (110 ) Foreign exchange forward contracts Other noninterest income (6 ) (12 ) Equity contracts Compensation expense (1 ) (1 ) Other Other noninterest income 1 – Customer-Related Positions Interest rate contracts Swaps Commercial products revenue 20 3 Purchased and written options Commercial products revenue 4 – Futures Commercial products revenue (1 ) 8 Foreign exchange rate contracts Forwards, spots and swaps Commercial products revenue 18 23 Credit contracts Commercial products revenue (3 ) –

Netting Arrangements for Cert_2

Netting Arrangements for Certain Financial Instruments and Securities Financing Activities (Tables)	3 Months Ended
	Mar. 31, 2019
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 Greater Than Total March 31, 2019 Repurchase agreements U.S. Treasury and agencies $ 295 $ – $ – $ – $ 295 Residential agency mortgage-backed securities 346 105 – 473 924 Corporate debt securities 528 – – – 528 Total repurchase agreements 1,169 105 – 473 1,747 Securities loaned Corporate debt securities 161 – – – 161 Total securities loaned 161 – – – 161 Gross amount of recognized liabilities $ 1,330 $ 105 $ – $ 473 $ 1,908 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
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: (Dollars in Millions) Gross Gross Amounts Net Amounts Gross Amounts Not Offset on the Financial Collateral Net Amount March 31, 2019 Derivative assets (d) $ 2,173 $ (872 ) $ 1,301 $ (63 ) $ (38 ) $ 1,200 Reverse repurchase agreements 3,868 – 3,868 (278 ) (3,586 ) 4 Securities borrowed 1,361 – 1,361 – (1,316 ) 45 Total $ 7,402 $ (872 ) $ 6,530 $ (341 ) $ (4,940 ) $ 1,249 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 (a) Includes $346 million and $236 million of cash collateral related payables that were netted against derivative assets at March 31, 2019 and December 31, 2018, 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 $44 million and $23 million at March 31, 2019 and December 31, 2018, 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	(Dollars in Millions) Gross Gross Amounts Net Amounts Gross Amounts Not Offset on the Financial Collateral Net Amount March 31, 2019 Derivative liabilities (d) $ 1,527 $ (796 ) $ 731 $ (63 ) $ – $ 668 Repurchase agreements 1,747 – 1,747 (278 ) (1,469 ) – Securities loaned 161 – 161 – (158 ) 3 Total $ 3,435 $ (796 ) $ 2,639 $ (341 ) $ (1,627 ) $ 671 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 (a) Includes $270 million and $240 million of cash collateral related receivables that were netted against derivative liabilities at March 31, 2019 and December 31, 2018, 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 $80 million and $85 million at March 31, 2019 and December 31, 2018, respectively, of derivative liabilities not subject to netting arrangements.

Fair Values of Assets and Lia_2

Fair Values of Assets and Liabilities (Tables)	3 Months Ended
	Mar. 31, 2019
Fair Value Disclosures [Abstract]
Valuation Assumption Ranges for MSRs	The following table shows the significant valuation assumption ranges for MSRs at March 31, 2019: Minimum Maximum Weighted Expected prepayment 8 % 18 % 11 % 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 March 31, 2019: Minimum Maximum Weighted Expected loan close rate 3 % 100 % 79 % Inherent MSR value (basis points per loan) 17 202 127 (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 March 31, 2019 Available-for-sale U.S. Treasury and agencies $ 18,266 $ 653 $ – $ – $ 18,919 Mortgage-backed securities Residential agency – 41,879 – – 41,879 Commercial agency – 2 – – 2 Other asset-backed securities – 395 – – 395 Obligations of state and political subdivisions – 6,918 – – 6,918 Total available-for-sale 18,266 49,847 – – 68,113 Mortgage loans held for sale – 2,690 – – 2,690 Mortgage servicing rights – – 2,656 – 2,656 Derivative assets – 1,405 812 (872 ) 1,345 Other assets 249 1,724 – – 1,973 Total $ 18,515 $ 55,666 $ 3,468 $ (872 ) $ 76,777 Derivative liabilities $ 8 $ 1,242 $ 357 $ (796 ) $ 811 Short-term borrowings and other liabilities (a) 189 1,283 – – 1,472 Total $ 197 $ 2,525 $ 357 $ (796 ) $ 2,283 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 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 March 31, 2019 and December 31, 2018. The Company has not recorded impairments or adjustments for observable price changes on these equity investments during the first three months of 2019 and 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 three months ended March 31: (Dollars in Millions) Beginning Net Gains Purchases Sales Issuances Settlements End Net Change in 2019 Mortgage servicing rights $ 2,791 $ (214 ) (a) $ 1 $ – $ 78 (c) $ – $ 2,656 $ (214 ) (a) Net derivative assets and liabilities 80 363 (b) 1 (7 ) – 18 455 424 (d) 2018 Mortgage servicing rights $ 2,645 $ 33 (a) $ 2 $ – $ 100 (c) $ – $ 2,780 $ 33 (a) Net derivative assets and liabilities 107 (251 ) (e) 1 (6 ) – 17 (132 ) (212 ) (f) (a) Included in mortgage banking revenue. (b) Approximately $280 million included in other noninterest income and $83 million included in mortgage banking revenue. (c) Represents MSRs capitalized during the period. (d) Approximately $388 million included in other noninterest income and $36 million included in mortgage banking revenue. (e) Approximately $(271) million included in other noninterest income and $20 million included in mortgage banking revenue. (f) Approximately $(240) million included in other noninterest income and $28 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 the reporting date: March 31, 2019 December 31, 2018 (Dollars in Millions) Level 1 Level 2 Level 3 Total Level 1 Level 2 Level 3 Total Loans (a) $ – $ – $ 247 $ 247 $ – $ – $ 40 $ 40 Other assets (b) – – 15 15 – – 57 57 (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 three months ended March 31: (Dollars in Millions) 2019 2018 Loans (a) $ 44 $ 23 Other assets (b) 3 5 (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: March 31, 2019 December 31, 2018 (Dollars in Millions) Fair Aggregate Carrying Fair Aggregate Carrying Total loans $ 2,690 $ 2,596 $ 94 $ 2,035 $ 1,972 $ 63 Nonaccrual loans 2 2 – 2 2 – Loans 90 days or more past due – – – – – –
Estimated Fair Values of Financial Instruments	The estimated fair values of the Company’s financial instruments are shown in the table below: March 31, 2019 December 31, 2018 Carrying Fair Value Carrying 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 $ 18,115 $ 18,115 $ – $ – $ 18,115 $ 21,453 $ 21,453 $ – $ – $ 21,453 Federal funds sold and securities purchased under resale agreements 3,868 – 3,868 – 3,868 306 – 306 – 306 Investment securities held-to-maturity 46,285 4,495 41,228 12 45,735 46,050 4,594 40,359 11 44,964 Loans held for sale (a) 35 – – 35 35 21 – – 21 21 Loans 283,709 – – 286,873 286,873 282,837 – – 284,790 284,790 Other 2,065 – 1,008 1,057 2,065 2,412 – 1,241 1,171 2,412 Financial Liabilities Time deposits 47,051 – 46,912 – 46,912 44,554 – 44,140 – 44,140 Short-term borrowings (b) 13,924 – 13,691 – 13,691 12,921 – 12,678 – 12,678 Long-term debt 40,680 – 40,705 – 40,705 41,340 – 41,003 – 41,003 Other 3,463 – 1,396 2,067 3,463 1,726 – – 1,726 1,726 (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)	3 Months Ended
	Mar. 31, 2019
Commitments and Contingencies Disclosure [Abstract]
Summary of Other Guarantees and Contingent Liabilities	The following table is a summary of other guarantees and contingent liabilities of the Company at March 31, 2019: (Dollars in Millions) Collateral Carrying Maximum Standby letters of credit $ – $ 52 $ 11,177 Third party borrowing arrangements – – 12 Securities lending indemnifications 5,444 – 5,350 Asset sales – 115 7,328 (a) Merchant processing 1,884 64 105,793 Tender option bond program guarantee 2,480 – 2,329 Minimum revenue guarantees – – 3 Other – 109 1,370 (a) 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.

Investment Securities - Investm

Investment Securities - Investment Securities (Detail) - USD ($) $ in Millions		3 Months Ended	12 Months Ended
		Mar. 31, 2019	Dec. 31, 2018
Contractual Maturities of Investment Securities [Line Items]
Available-for-sale securities, Amortized Cost		$ 68,599	$ 67,381
Amortized Cost of Investment Securities		$ 114,884	$ 113,431
Amortized Cost of Investment Securities, Percentage		100.00%	100.00%
Available-for-sale securities, total, fair value	[1]	$ 68,113	$ 66,115
Available-for-sale securities, total, weighted-average maturity in years		4 years 8 months 12 days	5 years 4 months 24 days
Available-for-sale securities, total, weighted-average yield		2.62%	2.57%
Held-to-maturity securities, Amortized Cost		$ 46,285	$ 46,050
Held-to-maturity securities, total, fair value		$ 45,735	$ 44,964
Held-to-maturity securities, total, weighted-average maturity in years		4 years 6 months	5 years 2 months 12 days
Held-to-maturity securities, total, weighted-average yield		2.52%	2.46%
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		$ 2,064
Available-for-sale securities, maturing after one year through five years, amortized cost		16,534
Available-for-sale securities, maturing after five years through ten years, amortized cost		529
Available-for-sale securities, Amortized Cost		19,127	$ 19,604
Available-for-sale securities, maturing in one year or less, fair value		2,056
Amortized Cost of Investment Securities		24,058	$ 24,706
Available-for-sale securities, maturing after one year through five years, fair value		$ 16,339
Amortized Cost of Investment Securities, Percentage		20.90%	21.80%
Available-for-sale securities, maturing after five years through ten years, fair value		$ 524
Available-for-sale securities, total, fair value		$ 18,919	$ 19,257
Available-for-sale securities, maturing in one year or less, weighted-average maturity in years		4 months 24 days
Available-for-sale securities, maturing after one year through five years, weighted-average maturity in years		2 years 7 months 6 days
Available-for-sale securities, maturing after five years through ten years, weighted-average maturity in years		7 years 2 months 12 days
Available-for-sale securities, maturing after ten years, weighted- average maturity in years		0 years
Available-for-sale securities, total, weighted-average maturity in years		2 years 6 months
Available-for-sale securities, maturing in one year or less, weighted-average yield		1.51%
Available-for-sale securities, maturing after one year through five years, weighted-average yield		1.77%
Available-for-sale securities, maturing after five years through ten years, weighted-average yield		2.80%
Available-for-sale securities, total, weighted-average yield		1.77%
Held-to-maturity securities, maturing in one year or less, amortized cost		$ 500
Held-to-maturity securities, maturing after one year through five years, amortized cost		3,901
Held-to-maturity securities, maturing after five years through ten years, amortized cost		530
Held-to-maturity securities, Amortized Cost		4,931	5,102
Held-to-maturity securities, maturing in one year or less, fair value		498
Held-to-maturity securities, maturing after one year through five years, fair value		3,820
Held-to-maturity securities, maturing after five years through ten years, fair value		524
Held-to-maturity securities, total, fair value		$ 4,842	4,961
Held-to-maturity securities, maturing in one year or less, weighted-average maturity in years		3 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 6 months
Held-to-maturity securities, maturing after ten years, weighted-average maturity in years		0 years
Held-to-maturity securities, total, weighted-average maturity in years		4 years
Held-to-maturity securities, maturing in one year or less, weighted-average yield		1.72%
Held-to-maturity securities, maturing after one year through five years, weighted-average yield		1.71%
Held-to-maturity securities, maturing after five years through ten years, weighted-average yield		2.45%
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		$ 19
Available-for-sale securities, maturing after one year through five years, amortized cost		25,789
Available-for-sale securities, maturing after five years through ten years, amortized cost		14,104
Available-for-sale securities, maturing after ten years, amortized cost		2,357
Available-for-sale securities, Amortized Cost		42,269
Available-for-sale securities, maturing in one year or less, fair value		19
Amortized Cost of Investment Securities		83,596	$ 81,464
Available-for-sale securities, maturing after one year through five years, fair value		$ 25,578
Amortized Cost of Investment Securities, Percentage		72.80%	71.80%
Available-for-sale securities, maturing after five years through ten years, fair value		$ 13,923
Available-for-sale securities, maturing after ten years, fair value		2,361
Available-for-sale securities, total, fair value		$ 41,881
Available-for-sale securities, maturing in one year or less, weighted-average maturity in years		7 months 6 days
Available-for-sale securities, maturing after one year through five years, weighted-average maturity in years		3 years 10 months 24 days
Available-for-sale securities, maturing after five years through ten years, weighted-average maturity in years		5 years 10 months 24 days
Available-for-sale securities, maturing after ten years, weighted- average maturity in years		13 years 3 months 18 days
Available-for-sale securities, total, weighted-average maturity in years		5 years 1 month 6 days
Available-for-sale securities, maturing in one year or less, weighted-average yield		3.10%
Available-for-sale securities, maturing after one year through five years, weighted-average yield		2.66%
Available-for-sale securities, maturing after five years through ten years, weighted-average yield		2.70%
Available-for-sale securities, maturing after ten years, weighted-average yield		3.50%
Available-for-sale securities, total, weighted-average yield		2.72%
Held-to-maturity securities, maturing in one year or less, amortized cost		$ 158
Held-to-maturity securities, maturing after one year through five years, amortized cost		26,001
Held-to-maturity securities, maturing after five years through ten years, amortized cost		14,860
Held-to-maturity securities, maturing after ten years, amortized cost		308
Held-to-maturity securities, Amortized Cost		41,327
Held-to-maturity securities, maturing in one year or less, fair value		156
Held-to-maturity securities, maturing after one year through five years, fair value		25,672
Held-to-maturity securities, maturing after five years through ten years, fair value		14,726
Held-to-maturity securities, maturing after ten years, fair value		307
Held-to-maturity securities, total, fair value		$ 40,861
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		3 years 9 months 18 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, maturing after ten years, weighted-average maturity in years		12 years 10 months 24 days
Held-to-maturity securities, total, weighted-average maturity in years		4 years 7 months 6 days
Held-to-maturity securities, maturing in one year or less, weighted-average yield		2.08%
Held-to-maturity securities, maturing after one year through five years, weighted-average yield		2.49%
Held-to-maturity securities, maturing after five years through ten years, weighted-average yield		2.79%
Held-to-maturity securities, maturing after ten years, weighted-average yield		3.44%
Held-to-maturity securities, total, weighted-average yield		2.61%
Asset-Backed Securities [Member]
Contractual Maturities of Investment Securities [Line Items]
Available-for-sale securities, maturing after one year through five years, amortized cost		$ 389
Available-for-sale securities, Amortized Cost		389
Amortized Cost of Investment Securities		394	$ 402
Available-for-sale securities, maturing after one year through five years, fair value		$ 395
Amortized Cost of Investment Securities, Percentage		0.40%	0.40%
Available-for-sale securities, total, fair value		$ 395
Available-for-sale securities, maturing in one year or less, weighted-average maturity in years		0 years
Available-for-sale securities, maturing after one year through five years, weighted-average maturity in years		3 years 4 months 24 days
Available-for-sale securities, maturing after five years through ten years, weighted-average maturity in years		0 years
Available-for-sale securities, maturing after ten years, weighted- average maturity in years		0 years
Available-for-sale securities, total, weighted-average maturity in years		3 years 4 months 24 days
Available-for-sale securities, maturing after one year through five years, weighted-average yield		3.77%
Available-for-sale securities, total, weighted-average yield		3.77%
Held-to-maturity securities, maturing after one year through five years, amortized cost		$ 4
Held-to-maturity securities, maturing after five years through ten years, amortized cost		1
Held-to-maturity securities, Amortized Cost		5
Held-to-maturity securities, maturing after one year through five years, fair value		8
Held-to-maturity securities, maturing after five years through ten years, fair value		1
Held-to-maturity securities, maturing after ten years, fair value		1
Held-to-maturity securities, total, fair value		$ 10
Held-to-maturity securities, maturing in one year or less, weighted-average maturity in years		0 years
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		6 years 1 month 6 days
Held-to-maturity securities, maturing after ten years, weighted-average maturity in years		14 years 9 months 18 days
Held-to-maturity securities, total, weighted-average maturity in years		3 years 7 months 6 days
Held-to-maturity securities, maturing after one year through five years, weighted-average yield		3.20%
Held-to-maturity securities, maturing after five years through ten years, weighted-average yield		3.30%
Held-to-maturity securities, maturing after ten years, weighted-average yield		3.19%
Held-to-maturity securities, total, weighted-average yield		3.21%
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		$ 266
Available-for-sale securities, maturing after one year through five years, amortized cost		571
Available-for-sale securities, maturing after five years through ten years, amortized cost		5,192
Available-for-sale securities, maturing after ten years, amortized cost		785
Available-for-sale securities, Amortized Cost		6,814	$ 6,836
Available-for-sale securities, maturing in one year or less, fair value		268
Amortized Cost of Investment Securities		6,819	$ 6,842
Available-for-sale securities, maturing after one year through five years, fair value		$ 585
Amortized Cost of Investment Securities, Percentage		5.90%	6.00%
Available-for-sale securities, maturing after five years through ten years, fair value		$ 5,299
Available-for-sale securities, maturing after ten years, fair value		766
Available-for-sale securities, total, fair value		$ 6,918	$ 6,701
Available-for-sale securities, maturing in one year or less, weighted-average maturity in years		3 months 18 days
Available-for-sale securities, maturing after one year through five years, weighted-average maturity in years		3 years 4 months 24 days
Available-for-sale securities, maturing after five years through ten years, weighted-average maturity in years		7 years 8 months 12 days
Available-for-sale securities, maturing after ten years, weighted- average maturity in years		20 years 4 months 24 days
Available-for-sale securities, total, weighted-average maturity in years		8 years 7 months 6 days
Available-for-sale securities, maturing in one year or less, weighted-average yield		5.65%
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		4.30%
Available-for-sale securities, maturing after ten years, weighted-average yield		4.04%
Available-for-sale securities, total, weighted-average yield		4.34%
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		4
Held-to-maturity securities, Amortized Cost		5	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		4
Held-to-maturity securities, total, fair value		$ 5	7
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		3 years 3 months 18 days
Held-to-maturity securities, maturing after five years through ten years, weighted-average maturity in years		7 years
Held-to-maturity securities, maturing after ten years, weighted-average maturity in years		0 years
Held-to-maturity securities, total, weighted-average maturity in years		6 years 6 months
Held-to-maturity securities, maturing in one year or less, weighted-average yield		7.47%
Held-to-maturity securities, maturing after one year through five years, weighted-average yield		6.49%
Held-to-maturity securities, maturing after five years through ten years, weighted-average yield		2.42%
Held-to-maturity securities, total, weighted-average yield		2.87%
Other Debt Securities and Obligations of Foreign Governments [Member]
Contractual Maturities of Investment Securities [Line Items]
Amortized Cost of Investment Securities		$ 17	$ 17
Available-for-sale securities, maturing in one year or less, weighted-average maturity in years		0 years
Available-for-sale securities, maturing after one year through five years, weighted-average maturity in years		0 years
Available-for-sale securities, maturing after five years through ten years, weighted-average maturity in years		0 years
Available-for-sale securities, maturing after ten years, weighted- average maturity in years		0 years
Available-for-sale securities, total, weighted-average maturity in years		0 years
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		3 months 18 days
Held-to-maturity securities, maturing after one year through five years, weighted-average maturity in years		1 year 1 month 6 days
Held-to-maturity securities, maturing after five years through ten years, weighted-average maturity in years		0 years
Held-to-maturity securities, maturing after ten years, weighted-average maturity in years		0 years
Held-to-maturity securities, total, weighted-average maturity in years		8 months 12 days
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		3.44%
Held-to-maturity securities, total, weighted-average yield		3.56%
[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)	3 Months Ended		12 Months Ended
	Mar. 31, 2019	Mar. 31, 2018	Dec. 31, 2018
Contractual Maturities of Investment Securities [Abstract]
Federal statutory rate	21.00%	21.00%	21.00%
Weighted-average maturity of available-for-sale investment securities	4 years 8 months 12 days		5 years 4 months 24 days
Weighted-average yield of available-for-sale investment securities	2.62%		2.57%
Weighted-average maturity of held-to-maturity investment securities	4 years 6 months		5 years 2 months 12 days
Weighted-average yield of held-to-maturity investment securities	2.52%		2.46%

Basis of Presentation - Line of

Basis of Presentation - Line of Business Financial Performance (Detail) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Condensed Income Statement
Net interest income (taxable-equivalent basis)	$ 3,286	$ 3,197
Net interest income (taxable-equivalent basis), Percent change	2.80%
Noninterest income	$ 2,286	2,267
Noninterest income, Percent change	0.80%
Securities gains (losses), net	$ 5	5
Securities gains (losses), net, Percent change	0.00%
Total net revenue	$ 5,577	5,469
Total net revenue, Percent change	2.00%
Noninterest expense, Percent change	1.00%
Other intangibles, Percent change	2.60%
Total noninterest expense, Percent change	1.00%
Income before provision and income taxes, Percent change	3.10%
Provision for credit losses, Percent change	10.60%
Income before income taxes, Percent change	1.90%
Income taxes and taxable-equivalent adjustment, Percent change	3.60%
Net income, Percent change	1.50%
Net (income) loss attributable to noncontrolling interests, Percent change	(28.60%)
Net income attributable to U.S. Bancorp, Percent change	1.40%
Noninterest expense	$ 3,047	3,016
Other intangibles	40	39
Total noninterest expense	3,087	3,055
Income before provision and income taxes	2,490	2,414
Provision for credit losses	377	341
Income before income taxes	2,113	2,073
Income taxes and taxable-equivalent adjustment	405	391
Net income	1,708	1,682
Net (income) loss attributable to noncontrolling interests	(9)	(7)
Net income attributable to U.S. Bancorp	1,699	1,675
Average Balance Sheet
Commercial	$ 101,960	97,465
Commercial, Percent change	4.60%
Commercial real estate	$ 39,470	40,366
Commercial real estate, Percent change	(2.20%)
Residential mortgages	$ 65,582	60,174
Residential mortgages, Percent change	9.00%
Credit card	$ 22,597	21,284
Credit card, Percent change	6.20%
Other retail	$ 56,501	57,051
Other retail, Percent change	(1.00%)
Total loans, excluding covered loans	$ 286,110	276,340
Total loans, excluding covered loans, Percent change	3.50%
Covered loans		3,048
Covered loans, Percent change	0.00%
Total loans	$ 286,110	279,388
Total loans, Percent change	2.40%
Goodwill, Percent change	1.20%
Other intangible assets, Percent change	3.30%
Assets, Percent change	2.00%
Noninterest-bearing deposits, Percent change	(7.60%)
Interest checking, Percent change	2.60%
Savings products, Percent change	(2.10%)
Time deposits, Percent change	22.00%
Total deposits, Percent change	0.20%
Total U.S. Bancorp shareholders' equity, Percent change	5.70%
Goodwill	$ 9,553	9,440
Other intangible assets	3,458	3,349
Assets	463,399	454,288
Noninterest-bearing deposits	73,433	79,482
Interest checking	72,177	70,358
Savings products	144,648	147,755
Time deposits	45,108	36,985
Total deposits	335,366	334,580
Total U.S. Bancorp shareholders' equity	51,589	48,825
Corporate and Commercial Banking [Member]
Condensed Income Statement
Net interest income (taxable-equivalent basis)	$ 725	722
Net interest income (taxable-equivalent basis), Percent change	0.40%
Noninterest income	$ 210	207
Noninterest income, Percent change	1.40%
Securities gains (losses), net, Percent change	0.00%
Total net revenue	$ 935	929
Total net revenue, Percent change	0.60%
Noninterest expense, Percent change	3.80%
Total noninterest expense, Percent change	3.80%
Income before provision and income taxes, Percent change	(1.70%)
Income before income taxes, Percent change	3.10%
Income taxes and taxable-equivalent adjustment, Percent change	3.10%
Net income, Percent change	3.10%
Net income attributable to U.S. Bancorp, Percent change	3.10%
Noninterest expense	$ 411	396
Other intangibles	1	1
Total noninterest expense	412	397
Income before provision and income taxes	523	532
Provision for credit losses	(11)	14
Income before income taxes	534	518
Income taxes and taxable-equivalent adjustment	134	130
Net income	400	388
Net income attributable to U.S. Bancorp	400	388
Average Balance Sheet
Commercial	$ 77,761	74,755
Commercial, Percent change	4.00%
Commercial real estate	$ 18,644	19,131
Commercial real estate, Percent change	(2.50%)
Residential mortgages	$ 6	6
Total loans, excluding covered loans	$ 96,411	93,892
Total loans, excluding covered loans, Percent change	2.70%
Covered loans, Percent change	0.00%
Total loans	$ 96,411	93,892
Total loans, Percent change	2.70%
Other intangible assets, Percent change	(25.00%)
Assets, Percent change	2.50%
Noninterest-bearing deposits, Percent change	(12.50%)
Interest checking, Percent change	23.80%
Savings products, Percent change	(6.30%)
Time deposits, Percent change	10.10%
Total deposits, Percent change	(3.00%)
Total U.S. Bancorp shareholders' equity, Percent change	0.20%
Goodwill	$ 1,647	1,647
Other intangible assets	9	12
Assets	105,144	102,582
Noninterest-bearing deposits	29,979	34,278
Interest checking	11,753	9,491
Savings products	41,145	43,926
Time deposits	18,195	16,522
Total deposits	101,072	104,217
Total U.S. Bancorp shareholders' equity	10,439	10,416
Consumer and Business Banking [Member]
Condensed Income Statement
Net interest income (taxable-equivalent basis)	$ 1,568	1,512
Net interest income (taxable-equivalent basis), Percent change	3.70%
Noninterest income	$ 533	571
Noninterest income, Percent change	(6.70%)
Securities gains (losses), net, Percent change	0.00%
Total net revenue	$ 2,101	2,083
Total net revenue, Percent change	0.90%
Noninterest expense, Percent change	(0.80%)
Other intangibles, Percent change	(28.60%)
Total noninterest expense, Percent change	(0.90%)
Income before provision and income taxes, Percent change	3.80%
Provision for credit losses, Percent change	27.30%
Income before income taxes, Percent change	2.10%
Income taxes and taxable-equivalent adjustment, Percent change	2.20%
Net income, Percent change	2.00%
Net income attributable to U.S. Bancorp, Percent change	2.00%
Noninterest expense	$ 1,286	1,296
Other intangibles	5	7
Total noninterest expense	1,291	1,303
Income before provision and income taxes	810	780
Provision for credit losses	70	55
Income before income taxes	740	725
Income taxes and taxable-equivalent adjustment	185	181
Net income	555	544
Net income attributable to U.S. Bancorp	555	544
Average Balance Sheet
Commercial	$ 9,451	9,651
Commercial, Percent change	(2.10%)
Commercial real estate	$ 16,005	16,419
Commercial real estate, Percent change	(2.50%)
Residential mortgages	$ 61,906	57,049
Residential mortgages, Percent change	8.50%
Other retail	$ 54,395	54,925
Other retail, Percent change	(1.00%)
Total loans, excluding covered loans	$ 141,757	138,044
Total loans, excluding covered loans, Percent change	2.70%
Covered loans		3,048
Covered loans, Percent change	0.00%
Total loans	$ 141,757	141,092
Total loans, Percent change	0.50%
Goodwill, Percent change	(4.30%)
Other intangible assets, Percent change	0.40%
Assets, Percent change	(0.50%)
Noninterest-bearing deposits, Percent change	(2.40%)
Interest checking, Percent change	3.80%
Savings products, Percent change	0.20%
Time deposits, Percent change	17.70%
Total deposits, Percent change	2.40%
Total U.S. Bancorp shareholders' equity, Percent change	(0.80%)
Goodwill	$ 3,475	3,632
Other intangible assets	2,882	2,871
Assets	154,743	155,488
Noninterest-bearing deposits	26,570	27,210
Interest checking	51,149	49,299
Savings products	61,395	61,292
Time deposits	14,798	12,570
Total deposits	153,912	150,371
Total U.S. Bancorp shareholders' equity	11,747	11,842
Wealth Management and Investment Services [Member]
Condensed Income Statement
Net interest income (taxable-equivalent basis)	$ 288	275
Net interest income (taxable-equivalent basis), Percent change	4.70%
Noninterest income	$ 430	431
Noninterest income, Percent change	(0.20%)
Securities gains (losses), net, Percent change	0.00%
Total net revenue	$ 718	706
Total net revenue, Percent change	1.70%
Noninterest expense, Percent change	2.80%
Other intangibles, Percent change	(25.00%)
Total noninterest expense, Percent change	2.60%
Income before provision and income taxes, Percent change	0.40%
Income before income taxes, Percent change	1.80%
Income taxes and taxable-equivalent adjustment, Percent change	1.40%
Net income, Percent change	1.90%
Net income attributable to U.S. Bancorp, Percent change	1.90%
Noninterest expense	$ 435	423
Other intangibles	3	4
Total noninterest expense	438	427
Income before provision and income taxes	280	279
Provision for credit losses	(3)	1
Income before income taxes	283	278
Income taxes and taxable-equivalent adjustment	71	70
Net income	212	208
Net income attributable to U.S. Bancorp	212	208
Average Balance Sheet
Commercial	$ 3,921	3,661
Commercial, Percent change	7.10%
Commercial real estate	$ 504	511
Commercial real estate, Percent change	(1.40%)
Residential mortgages	$ 3,670	3,113
Residential mortgages, Percent change	17.90%
Other retail	$ 1,730	1,699
Other retail, Percent change	1.80%
Total loans, excluding covered loans	$ 9,825	8,984
Total loans, excluding covered loans, Percent change	9.40%
Covered loans, Percent change	0.00%
Total loans	$ 9,825	8,984
Total loans, Percent change	9.40%
Goodwill, Percent change	(0.10%)
Other intangible assets, Percent change	(22.90%)
Assets, Percent change	9.70%
Noninterest-bearing deposits, Percent change	(7.40%)
Interest checking, Percent change	(20.40%)
Savings products, Percent change	(1.50%)
Time deposits, Percent change	2.90%
Total deposits, Percent change	(5.50%)
Total U.S. Bancorp shareholders' equity, Percent change	2.60%
Goodwill	$ 1,617	1,619
Other intangible assets	54	70
Assets	13,187	12,026
Noninterest-bearing deposits	13,293	14,361
Interest checking	9,175	11,525
Savings products	41,127	41,747
Time deposits	3,806	3,700
Total deposits	67,401	71,333
Total U.S. Bancorp shareholders' equity	2,515	2,451
Payment Services [Member]
Condensed Income Statement
Net interest income (taxable-equivalent basis)	$ 622	611
Net interest income (taxable-equivalent basis), Percent change	1.80%
Noninterest income	$ 853	848
Noninterest income, Percent change	0.60%
Securities gains (losses), net, Percent change	0.00%
Total net revenue	$ 1,475	1,459
Total net revenue, Percent change	1.10%
Noninterest expense, Percent change	2.80%
Other intangibles, Percent change	14.80%
Total noninterest expense, Percent change	3.30%
Income before provision and income taxes, Percent change	(1.10%)
Provision for credit losses, Percent change	5.10%
Income before income taxes, Percent change	(4.90%)
Income taxes and taxable-equivalent adjustment, Percent change	(4.40%)
Net income, Percent change	(5.00%)
Net income attributable to U.S. Bancorp, Percent change	(5.00%)
Noninterest expense	$ 728	708
Other intangibles	31	27
Total noninterest expense	759	735
Income before provision and income taxes	716	724
Provision for credit losses	286	272
Income before income taxes	430	452
Income taxes and taxable-equivalent adjustment	108	113
Net income	322	339
Net income attributable to U.S. Bancorp	322	339
Average Balance Sheet
Commercial	$ 9,441	8,354
Commercial, Percent change	13.00%
Credit card	$ 22,597	21,284
Credit card, Percent change	6.20%
Other retail	$ 376	424
Other retail, Percent change	(11.30%)
Total loans, excluding covered loans	$ 32,414	30,062
Total loans, excluding covered loans, Percent change	7.80%
Covered loans, Percent change	0.00%
Total loans	$ 32,414	30,062
Total loans, Percent change	7.80%
Goodwill, Percent change	10.70%
Other intangible assets, Percent change	29.50%
Assets, Percent change	6.80%
Noninterest-bearing deposits, Percent change	2.70%
Savings products, Percent change	5.80%
Time deposits, Percent change	(33.30%)
Total deposits, Percent change	2.80%
Total U.S. Bancorp shareholders' equity, Percent change	6.10%
Goodwill	$ 2,814	2,542
Other intangible assets	513	396
Assets	38,618	36,161
Noninterest-bearing deposits	1,157	1,127
Savings products	109	103
Time deposits	2	3
Total deposits	1,268	1,233
Total U.S. Bancorp shareholders' equity	7,024	6,621
Treasury and Corporate Support [Member]
Condensed Income Statement
Net interest income (taxable-equivalent basis)	$ 83	77
Net interest income (taxable-equivalent basis), Percent change	7.80%
Noninterest income	$ 260	210
Noninterest income, Percent change	23.80%
Securities gains (losses), net	$ 5	5
Securities gains (losses), net, Percent change	0.00%
Total net revenue	$ 348	292
Total net revenue, Percent change	19.20%
Noninterest expense, Percent change	(3.10%)
Total noninterest expense, Percent change	(3.10%)
Income before provision and income taxes, Percent change	62.60%
Income before income taxes, Percent change	26.00%
Income taxes and taxable-equivalent adjustment, Percent change	9.70%
Net income, Percent change	7.90%
Net (income) loss attributable to noncontrolling interests, Percent change	(28.60%)
Net income attributable to U.S. Bancorp, Percent change	7.10%
Noninterest expense	$ 187	193
Total noninterest expense	187	193
Income before provision and income taxes	161	99
Provision for credit losses	35	(1)
Income before income taxes	126	100
Income taxes and taxable-equivalent adjustment	(93)	(103)
Net income	219	203
Net (income) loss attributable to noncontrolling interests	(9)	(7)
Net income attributable to U.S. Bancorp	210	196
Average Balance Sheet
Commercial	$ 1,386	1,044
Commercial, Percent change	32.80%
Commercial real estate	$ 4,317	4,305
Commercial real estate, Percent change	0.30%
Residential mortgages		6
Other retail		3
Total loans, excluding covered loans	$ 5,703	5,358
Total loans, excluding covered loans, Percent change	6.40%
Covered loans, Percent change	0.00%
Total loans	$ 5,703	5,358
Total loans, Percent change	6.40%
Assets, Percent change	2.50%
Noninterest-bearing deposits, Percent change	(2.90%)
Savings products, Percent change	26.90%
Time deposits, Percent change	98.30%
Total deposits, Percent change	57.70%
Total U.S. Bancorp shareholders' equity, Percent change	13.50%
Assets	$ 151,707	148,031
Noninterest-bearing deposits	2,434	2,506
Interest checking	100	43
Savings products	872	687
Time deposits	8,307	4,190
Total deposits	11,713	7,426
Total U.S. Bancorp shareholders' equity	$ 19,864	$ 17,495

Basis of Presentation - Line _2

Basis of Presentation - Line of Business Financial Performance (Parenthetical) (Detail) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Line Of Business Financial Performance [Line Items]
Revenue generated from certain contracts with customers included in non-interest income	$ 1,700	$ 1,800
Payment Services [Member]
Line Of Business Financial Performance [Line Items]
Rewards and rebate costs and certain partner payments included in noninterest income	$ 529	$ 534

Accounting Changes - Additional

Accounting Changes - Additional Information (Detail) $ in Billions	Mar. 31, 2019USD ($)
New Accounting Pronouncements and Changes in Accounting Principles [Abstract]
Increase in lease assets related to adoption of accounting guidance	$ 1.3
Increase in lease related liabilities related to adoption of accounting guidance	$ 1.3

Investment Securities - Inves_3

Investment Securities - Investment Securities Held-to-Maturity (Detail) - USD ($) $ in Millions	Mar. 31, 2019	Dec. 31, 2018
Schedule of Held-to-maturity Securities [Line Items]
Held-to-maturity securities, Amortized Cost	$ 46,285	$ 46,050
Held-to-maturity securities, Unrealized Gains	111	51
Held-to-maturity securities, Unrealized Losses Other-than-Temporary	0	0
Held-to-maturity securities, Unrealized Losses Other	(661)	(1,137)
Held-to-maturity securities, Fair Value	45,735	44,964
U.S. Treasury and Agencies [Member]
Schedule of Held-to-maturity Securities [Line Items]
Held-to-maturity securities, Amortized Cost	4,931	5,102
Held-to-maturity securities, Unrealized Gains	3	2
Held-to-maturity securities, Unrealized Losses Other-than-Temporary	0	0
Held-to-maturity securities, Unrealized Losses Other	(92)	(143)
Held-to-maturity securities, Fair Value	4,842	4,961
Residential Mortgage-Backed Securities [Member] | Agency [Member]
Schedule of Held-to-maturity Securities [Line Items]
Held-to-maturity securities, Amortized Cost	41,327	40,920
Held-to-maturity securities, Unrealized Gains	103	45
Held-to-maturity securities, Unrealized Losses Other-than-Temporary	0	0
Held-to-maturity securities, Unrealized Losses Other	(569)	(994)
Held-to-maturity securities, Fair Value	40,861	39,971
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	10
Asset-Backed Securities [Member] | Collateralized Loan Obligations [Member]
Schedule of Held-to-maturity Securities [Line Items]
Held-to-maturity securities, Unrealized Gains	3	1
Held-to-maturity securities, Unrealized Losses Other-than-Temporary	0	0
Held-to-maturity securities, Fair Value	3	1
Asset-Backed Securities [Member] | Other Asset-Backed Securities [Member]
Schedule of Held-to-maturity Securities [Line Items]
Held-to-maturity securities, Amortized Cost	5	5
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	7
Obligations of State and Political Subdivisions [Member]
Schedule of Held-to-maturity Securities [Line Items]
Held-to-maturity securities, Amortized Cost	5	6
Held-to-maturity securities, Unrealized Gains		1
Held-to-maturity securities, Unrealized Losses Other-than-Temporary	0	0
Held-to-maturity securities, Fair Value	5	7
Obligations of Foreign Governments [Member]
Schedule of Held-to-maturity Securities [Line Items]
Held-to-maturity securities, Amortized Cost	9	9
Held-to-maturity securities, Unrealized Losses Other-than-Temporary	0	0
Held-to-maturity securities, Fair Value	9	9
Other [Member]
Schedule of Held-to-maturity Securities [Line Items]
Held-to-maturity securities, Amortized Cost	8	8
Held-to-maturity securities, Unrealized Losses Other-than-Temporary	0	0
Held-to-maturity securities, Fair Value	$ 8	$ 8

Investment Securities - Inves_4

Investment Securities - Investment Securities Available-for-Sale (Detail) - USD ($) $ in Millions		Mar. 31, 2019	Dec. 31, 2018
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale securities, Amortized Cost		$ 68,599	$ 67,381
Available-for-sale securities, Unrealized Gains		314	174
Available-for-sale securities, Unrealized Losses Other-than-Temporary		0	0
Available-for-sale securities, Unrealized Losses Other		(800)	(1,440)
Available-for-sale securities, Fair Value	[1]	68,113	66,115
U.S. Treasury and Agencies [Member]
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale securities, Amortized Cost		19,127	19,604
Available-for-sale securities, Unrealized Gains		17	11
Available-for-sale securities, Unrealized Losses Other-than-Temporary		0	0
Available-for-sale securities, Unrealized Losses Other		(225)	(358)
Available-for-sale securities, Fair Value		18,919	19,257
Residential Mortgage-Backed Securities [Member] | Agency [Member]
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale securities, Amortized Cost		42,267	40,542
Available-for-sale securities, Unrealized Gains		153	120
Available-for-sale securities, Unrealized Losses Other-than-Temporary		0	0
Available-for-sale securities, Unrealized Losses Other		(541)	(910)
Available-for-sale securities, Fair Value		41,879	39,752
Commercial [Member] | Agency [Member]
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale securities, Amortized Cost		2	2
Available-for-sale securities, Unrealized Losses Other-than-Temporary		0	0
Available-for-sale securities, Fair Value		2	2
Asset-Backed Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale securities, Amortized Cost		389
Available-for-sale securities, Fair Value		395
Asset-Backed Securities [Member] | Other Asset-Backed Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale securities, Amortized Cost		389	397
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		395	403
Obligations of State and Political Subdivisions [Member]
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale securities, Amortized Cost		6,814	6,836
Available-for-sale securities, Unrealized Gains		138	37
Available-for-sale securities, Unrealized Losses Other-than-Temporary		0	0
Available-for-sale securities, Unrealized Losses Other		(34)	(172)
Available-for-sale securities, Fair Value		$ 6,918	$ 6,701
[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 Billions	3 Months Ended	12 Months Ended
	Mar. 31, 2019	Dec. 31, 2018
Investments, Debt and Equity Securities [Abstract]
Weighted-average maturity of available-for-sale investment securities	4 years 8 months 12 days	5 years 4 months 24 days
Weighted-average yields of available-for-sale investment securities	2.62%	2.57%
Weighted-average maturity of held-to-maturity investment securities	4 years 6 months	5 years 2 months 12 days
Weighted-average yields of held-to-maturity investment securities	2.52%	2.46%
Fair value of securities pledged	$ 8.7	$ 10.9
Fair value of securities pledged as collateral where counterparty has right to repledge or resell	$ 1	$ 2.1

Investment Securities - Amount

Investment Securities - Amount of Interest Income from Taxable and Non-Taxable Investment Securities (Detail) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Interest Income, Securities, Operating, by Taxable Status [Abstract]
Taxable	$ 650	$ 561
Non-taxable	55	52
Total interest income from investment securities	$ 705	$ 613

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	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Debt Securities, Available-for-sale, Realized Gain (Loss), Excluding Other-than-temporary Impairment [Abstract]
Realized gains	$ 5	$ 5
Realized losses	0	0
Net realized gains (losses)	5	5
Income tax (benefit) on net realized gains (losses)	$ 2	$ 1

Investment Securities - Gross U

Investment Securities - Gross Unrealized Losses and Fair Value of Company's Investment Securities (Detail) $ in Millions	Mar. 31, 2019USD ($)
Continuous Gross Unrealized Losses And Fair Value [Abstract]
Fair Value Less Than 12 Months	$ 1,635
Unrealized Losses Less Than 12 Months	(6)
Fair Value 12 Months or Greater	31,906
Unrealized Losses 12 Months or Greater	(655)
Fair Value Total	33,541
Unrealized Losses Total	(661)
Fair Value Less Than 12 Months	4,491
Unrealized Losses Less Than 12 Months	(18)
Fair Value 12 Months or Greater	43,263
Unrealized Losses 12 Months or Greater	(782)
Fair Value Total	47,754
Unrealized Losses Total	(800)
U.S. Treasury and Agencies [Member]
Continuous Gross Unrealized Losses And Fair Value [Abstract]
Fair Value 12 Months or Greater	4,449
Unrealized Losses 12 Months or Greater	(92)
Fair Value Total	4,449
Unrealized Losses Total	(92)
Fair Value Less Than 12 Months	21
Fair Value 12 Months or Greater	17,478
Unrealized Losses 12 Months or Greater	(225)
Fair Value Total	17,499
Unrealized Losses Total	(225)
Residential Mortgage-Backed Securities [Member] | Agency [Member]
Continuous Gross Unrealized Losses And Fair Value [Abstract]
Fair Value Less Than 12 Months	1,632
Unrealized Losses Less Than 12 Months	(6)
Fair Value 12 Months or Greater	27,456
Unrealized Losses 12 Months or Greater	(563)
Fair Value Total	29,088
Unrealized Losses Total	(569)
Fair Value Less Than 12 Months	4,470
Unrealized Losses Less Than 12 Months	(18)
Fair Value 12 Months or Greater	24,097
Unrealized Losses 12 Months or Greater	(523)
Fair Value Total	28,567
Unrealized Losses Total	(541)
Commercial [Member] | Agency [Member]
Continuous Gross Unrealized Losses And Fair Value [Abstract]
Fair Value 12 Months or Greater	2
Fair Value Total	2
Obligations of State and Political Subdivisions [Member]
Continuous Gross Unrealized Losses And Fair Value [Abstract]
Fair Value 12 Months or Greater	1,686
Unrealized Losses 12 Months or Greater	(34)
Fair Value Total	1,686
Unrealized Losses Total	(34)
Asset-Backed Securities [Member] | Other Asset-Backed Securities [Member]
Continuous Gross Unrealized Losses And Fair Value [Abstract]
Fair Value 12 Months or Greater	1
Fair Value Total	1
Obligations of Foreign Governments [Member]
Continuous Gross Unrealized Losses And Fair Value [Abstract]
Fair Value Less Than 12 Months	3
Fair Value Total	$ 3

Loans and Allowance for Credi_3

Loans and Allowance for Credit Losses - Composition of Loan Portfolio (Detail) - USD ($) $ in Millions	3 Months Ended	12 Months Ended
	Mar. 31, 2019	Dec. 31, 2018
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	$ 287,699	$ 286,810
Loans, percentage	100.00%	100.00%
Commercial [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	$ 97,552	$ 96,849
Loans, percentage	33.90%	33.80%
Commercial [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	$ 103,069	$ 102,444
Loans, percentage	35.80%	35.70%
Commercial Real Estate [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	$ 39,421	$ 39,539
Loans, percentage	13.70%	13.90%
Residential Mortgages [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	$ 66,243	$ 65,034
Loans, percentage	23.00%	22.70%
Other Retail [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	$ 56,698	$ 56,430
Loans, percentage	19.70%	19.70%
Lease Financing [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	$ 5,517	$ 5,595
Loans, percentage	1.90%	2.00%
Commercial Mortgages [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	$ 28,416	$ 28,596
Loans, percentage	9.90%	10.00%
Construction and Development [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	$ 11,005	$ 10,943
Loans, percentage	3.80%	3.80%
Residential Mortgages [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	$ 54,552	$ 53,034
Loans, percentage	18.90%	18.50%
Home Equity Loans, First Liens [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	$ 11,691	$ 12,000
Loans, percentage	4.10%	4.20%
Credit Card [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	$ 22,268	$ 23,363
Loans, percentage	7.80%	8.10%
Retail Leasing [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	$ 8,612	$ 8,546
Loans, percentage	3.00%	3.00%
Home Equity and Second Mortgages [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	$ 15,883	$ 16,122
Loans, percentage	5.50%	5.60%
Revolving Credit [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	$ 2,934	$ 3,088
Loans, percentage	1.00%	1.10%
Installment [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	$ 10,030	$ 9,676
Loans, percentage	3.50%	3.40%
Automobile [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	$ 18,976	$ 18,719
Loans, percentage	6.60%	6.50%
Student [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	$ 263	$ 279
Loans, percentage	0.10%	0.10%

Loans and Allowance for Credi_4

Loans and Allowance for Credit Losses - Additional Information (Detail) $ in Millions	3 Months Ended
	Mar. 31, 2019USD ($)SecurityLoanMortgageLoan	Dec. 31, 2018USD ($)
Loans and Allowance for Credit Losses [Line Items]
Loans pledged at the Federal Home Loan Bank	$ 91,000	$ 88,700
Loans pledged at the Federal Reserve Bank	71,100	70,100
Unearned interest and deferred fees and costs on originated loans	854	872
Foreclosed residential real estate property included in other real estate owned	88	106
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	231	235
Residential mortgage loans secured by residential real estate in process of foreclosure	$ 1,600	1,500
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	259
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	$ 33
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	$ 1,300	$ 1,200
Home Equity and Second Mortgages [Member]
Loans and Allowance for Credit Losses [Line Items]
Number of loans in trial period | SecurityLoan	20
Outstanding balance of loans in trial period	$ 2
Estimated post-modification balance of loans in trial period	$ 2
Residential Mortgages [Member]
Loans and Allowance for Credit Losses [Line Items]
Number of loans in trial period | SecurityLoan	11
Outstanding balance of loans in trial period	$ 2
Estimated post-modification balance of loans in trial period	$ 2
Government National Mortgage Association [Member]
Loans and Allowance for Credit Losses [Line Items]
Number of loans in trial period | SecurityLoan	1,125
Outstanding balance of loans in trial period	$ 146
Estimated post-modification balance of loans in trial period	$ 143

Loans and Allowance for Credi_5

Loans and Allowance for Credit Losses - Activity in Allowance for Credit Losses by Portfolio Class (Detail) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Financing Receivable, Allowance for Credit Losses [Line Items]
Balance at beginning of period	$ 4,441	$ 4,417
Provision for credit losses	377	341
Loans charged-off	473	453
Less recoveries of loans charged-off	(106)	(112)
Net loans charged-off	367	341
Balance at end of period	4,451	4,417
Commercial [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Balance at beginning of period	1,454	1,372
Provision for credit losses	64	74
Loans charged-off	111	94
Less recoveries of loans charged-off	(38)	(34)
Net loans charged-off	73	60
Balance at end of period	1,445	1,386
Commercial Real Estate [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Balance at beginning of period	800	831
Provision for credit losses	12	(8)
Loans charged-off	1	3
Less recoveries of loans charged-off	(1)	(6)
Net loans charged-off		(3)
Balance at end of period	812	826
Residential Mortgages [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Balance at beginning of period	455	449
Provision for credit losses	(7)	1
Loans charged-off	8	13
Less recoveries of loans charged-off	(5)	(6)
Net loans charged-off	3	7
Balance at end of period	445	443
Other Retail [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Balance at beginning of period	630	678
Provision for credit losses	70	60
Loans charged-off	96	95
Less recoveries of loans charged-off	(30)	(29)
Net loans charged-off	66	66
Balance at end of period	634	672
Credit Card [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Balance at beginning of period	1,102	1,056
Provision for credit losses	238	219
Loans charged-off	257	248
Less recoveries of loans charged-off	(32)	(37)
Net loans charged-off	225	211
Balance at end of period	$ 1,115	1,064
Covered Loans [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Balance at beginning of period		31
Provision for credit losses		(5)
Balance at end of period		$ 26

Loans and Allowance for Credi_6

Loans and Allowance for Credit Losses - Additional Detail of Allowance for Credit Losses and Related Loan Balances by Portfolio Class (Detail) - USD ($) $ in Millions	Mar. 31, 2019	Dec. 31, 2018	Mar. 31, 2018	Dec. 31, 2017
Allowance Balance at End of Period
Loans individually evaluated for impairment	$ 33	$ 24
TDRs collectively evaluated for impairment	225	225
Other loans collectively evaluated for impairment	4,178	4,176
Loans acquired with deteriorated credit quality	15	16
Total allowance for credit losses	4,451	4,441	$ 4,417	$ 4,417
Loan Balance at End of Period
Loans individually evaluated for impairment	360	348
TDRs collectively evaluated for impairment	3,905	3,960
Other loans collectively evaluated for impairment	283,103	282,158
Loans acquired with deteriorated credit quality	331	344
Total loans	287,699	286,810
Commercial [Member]
Allowance Balance at End of Period
Loans individually evaluated for impairment	31	16
TDRs collectively evaluated for impairment	18	15
Other loans collectively evaluated for impairment	1,396	1,423
Total allowance for credit losses	1,445	1,454	1,386	1,372
Loan Balance at End of Period
Loans individually evaluated for impairment	284	262
TDRs collectively evaluated for impairment	160	151
Other loans collectively evaluated for impairment	102,625	102,031
Total loans	103,069	102,444
Commercial Real Estate [Member]
Allowance Balance at End of Period
Loans individually evaluated for impairment	2	8
TDRs collectively evaluated for impairment	4	3
Other loans collectively evaluated for impairment	806	788
Loans acquired with deteriorated credit quality		1
Total allowance for credit losses	812	800	826	831
Loan Balance at End of Period
Loans individually evaluated for impairment	76	86
TDRs collectively evaluated for impairment	143	129
Other loans collectively evaluated for impairment	39,171	39,297
Loans acquired with deteriorated credit quality	31	27
Total loans	39,421	39,539
Residential Mortgages [Member]
Allowance Balance at End of Period
TDRs collectively evaluated for impairment	117	126
Other loans collectively evaluated for impairment	313	314
Loans acquired with deteriorated credit quality	15	15
Total allowance for credit losses	445	455	443	449
Loan Balance at End of Period
TDRs collectively evaluated for impairment	3,158	3,252
Other loans collectively evaluated for impairment	62,785	61,465
Loans acquired with deteriorated credit quality	300	317
Total loans	66,243	65,034
Other Retail [Member]
Allowance Balance at End of Period
TDRs collectively evaluated for impairment	12	12
Other loans collectively evaluated for impairment	622	618
Total allowance for credit losses	634	630	672	678
Loan Balance at End of Period
TDRs collectively evaluated for impairment	190	183
Other loans collectively evaluated for impairment	56,508	56,247
Total loans	56,698	56,430
Credit Card [Member]
Allowance Balance at End of Period
TDRs collectively evaluated for impairment	74	69
Other loans collectively evaluated for impairment	1,041	1,033
Total allowance for credit losses	1,115	1,102	$ 1,064	$ 1,056
Loan Balance at End of Period
TDRs collectively evaluated for impairment	254	245
Other loans collectively evaluated for impairment	22,014	23,118
Total loans	$ 22,268	$ 23,363

Loans and Allowance for Credi_7

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	Mar. 31, 2019	Dec. 31, 2018
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current	$ 284,774	$ 284,109
Accruing 30-89 Days Past Due	1,472	1,300
Accruing 90 Days or More Past Due	595	584
Nonperforming	858	817
Total loans	287,699	286,810
Commercial [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current	102,125	101,844
Accruing 30-89 Days Past Due	596	322
Accruing 90 Days or More Past Due	77	69
Nonperforming	271	209
Total loans	103,069	102,444
Commercial Real Estate [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current	39,248	39,354
Accruing 30-89 Days Past Due	43	70
Accruing 90 Days or More Past Due	3
Nonperforming	127	115
Total loans	39,421	39,539
Residential Mortgages [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current	65,666	64,443
Accruing 30-89 Days Past Due	168	181
Accruing 90 Days or More Past Due	122	114
Nonperforming	287	296
Total loans	66,243	65,034
Other Retail [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current	56,045	55,722
Accruing 30-89 Days Past Due	375	403
Accruing 90 Days or More Past Due	105	108
Nonperforming	173	197
Total loans	56,698	56,430
Credit Card [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current	21,690	22,746
Accruing 30-89 Days Past Due	290	324
Accruing 90 Days or More Past Due	288	293
Total loans	$ 22,268	$ 23,363

Loans and Allowance for Credi_8

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	Mar. 31, 2019	Dec. 31, 2018
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	$ 418	$ 430
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	$ 1,700

Loans and Allowance for Credi_9

Loans and Allowance for Credit Losses - Summary of Loans by Portfolio Class and Company's Internal Credit Quality Rating (Detail) - USD ($) $ in Millions	Mar. 31, 2019	Dec. 31, 2018
Financing Receivable, Recorded Investment [Line Items]
Total loans	$ 287,699	$ 286,810
Total outstanding commitments	613,082	606,656
Pass [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	283,400	282,228
Total outstanding commitments	607,486	600,407
Special Mention Criticized [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	1,507	1,740
Total outstanding commitments	2,191	2,801
Classified Criticized [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	2,792	2,842
Total outstanding commitments	3,405	3,448
Total Criticized [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	4,299	4,582
Total outstanding commitments	5,596	6,249
Commercial [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	103,069	102,444
Commercial [Member] | Pass [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	100,888	100,014
Commercial [Member] | Special Mention Criticized [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	969	1,149
Commercial [Member] | Classified Criticized [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	1,212	1,281
Commercial [Member] | Total Criticized [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	2,181	2,430
Commercial Real Estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	39,421	39,539
Commercial Real Estate [Member] | Pass [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	38,368	38,473
Commercial Real Estate [Member] | Special Mention Criticized [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	532	584
Commercial Real Estate [Member] | Classified Criticized [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	521	482
Commercial Real Estate [Member] | Total Criticized [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	1,053	1,066
Residential Mortgages [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	66,243	65,034
Residential Mortgages [Member] | Pass [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	65,779	64,570
Residential Mortgages [Member] | Special Mention Criticized [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans		1
Residential Mortgages [Member] | Classified Criticized [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	464	463
Residential Mortgages [Member] | Total Criticized [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	464	464
Other Retail [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	56,698	56,430
Other Retail [Member] | Pass [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	56,385	56,101
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	307	323
Other Retail [Member] | Total Criticized [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	313	329
Credit Card [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	22,268	23,363
Credit Card [Member] | Pass [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	21,980	23,070
Credit Card [Member] | Classified Criticized [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	288	293
Credit Card [Member] | Total Criticized [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	$ 288	$ 293

Loans and Allowance for Cred_10

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	Mar. 31, 2019	Dec. 31, 2018
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	$ 1.7
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	$ 1.6

Loans and Allowance for Cred_11

Loans and Allowance for Credit Losses - Summary of Impaired Loans, which Include Nonaccrual and TDR Loans, by Portfolio Class (Detail) - USD ($) $ in Millions	Mar. 31, 2019	Dec. 31, 2018
Financing Receivable, Impaired [Line Items]
Period-end Recorded Investment	$ 4,609	$ 4,674
Unpaid Principal Balance	5,790	5,698
Valuation Allowance	264	254
Commitments to Lend Additional Funds	139	113
Commercial [Member]
Financing Receivable, Impaired [Line Items]
Period-end Recorded Investment	502	467
Unpaid Principal Balance	1,096	1,006
Valuation Allowance	50	32
Commitments to Lend Additional Funds	136	106
Commercial Real Estate [Member]
Financing Receivable, Impaired [Line Items]
Period-end Recorded Investment	266	279
Unpaid Principal Balance	619	511
Valuation Allowance	7	12
Commitments to Lend Additional Funds		2
Residential Mortgages [Member]
Financing Receivable, Impaired [Line Items]
Period-end Recorded Investment	1,684	1,709
Unpaid Principal Balance	1,843	1,879
Valuation Allowance	82	86
Other Retail [Member]
Financing Receivable, Impaired [Line Items]
Period-end Recorded Investment	325	335
Unpaid Principal Balance	400	418
Valuation Allowance	15	14
Commitments to Lend Additional Funds	3	5
Credit Card [Member]
Financing Receivable, Impaired [Line Items]
Period-end Recorded Investment	254	245
Unpaid Principal Balance	254	245
Valuation Allowance	74	69
Total Loans, Excluding Loans Purchased from GNMA Mortgage Pools [Member]
Financing Receivable, Impaired [Line Items]
Period-end Recorded Investment	3,031	3,035
Unpaid Principal Balance	4,212	4,059
Valuation Allowance	228	213
Commitments to Lend Additional Funds	139	113
Government National Mortgage Association [Member]
Financing Receivable, Impaired [Line Items]
Period-end Recorded Investment	1,578	1,639
Unpaid Principal Balance	1,578	1,639
Valuation Allowance	$ 36	$ 41

Loans and Allowance for Cred_12

Loans and Allowance for Credit Losses - Impaired Loans Average Recorded Investment and Interest Income Recognized (Detail) - USD ($) $ in Millions	3 Months Ended	12 Months Ended
	Mar. 31, 2019	Dec. 31, 2018
Financing Receivable, Impaired [Line Items]
Average Recorded Investment	$ 4,643	$ 4,920
Interest Income Recognized	47	40
Commercial [Member]
Financing Receivable, Impaired [Line Items]
Average Recorded Investment	485	545
Interest Income Recognized	1	1
Commercial Real Estate [Member]
Financing Receivable, Impaired [Line Items]
Average Recorded Investment	273	267
Interest Income Recognized	2	2
Residential Mortgages [Member]
Financing Receivable, Impaired [Line Items]
Average Recorded Investment	1,697	1,914
Interest Income Recognized	24	20
Other Retail [Member]
Financing Receivable, Impaired [Line Items]
Average Recorded Investment	330	300
Interest Income Recognized	3	4
Credit Card [Member]
Financing Receivable, Impaired [Line Items]
Average Recorded Investment	249	232
Interest Income Recognized		1
Covered Loans [Member]
Financing Receivable, Impaired [Line Items]
Average Recorded Investment		38
Total Loans, Excluding Loans Purchased from GNMA Mortgage Pools [Member]
Financing Receivable, Impaired [Line Items]
Average Recorded Investment	3,034	3,296
Interest Income Recognized	30	28
Government National Mortgage Association [Member]
Financing Receivable, Impaired [Line Items]
Average Recorded Investment	1,609	1,624
Interest Income Recognized	$ 17	$ 12

Loans and Allowance for Cred_13

Loans and Allowance for Credit Losses - Summary of Loans Modified as TDRs (Detail) $ in Millions	3 Months Ended	12 Months Ended
	Mar. 31, 2019USD ($)SecurityLoan	Dec. 31, 2018USD ($)SecurityLoan
Financing Receivable, Modifications [Line Items]
Number of Loans | SecurityLoan	12,788	10,793
Pre-Modification Outstanding Loan Balance	$ 361	$ 285
Post-Modification Outstanding Loan Balance	$ 344	$ 273
Commercial [Member]
Financing Receivable, Modifications [Line Items]
Number of Loans | SecurityLoan	913	623
Pre-Modification Outstanding Loan Balance	$ 36	$ 81
Post-Modification Outstanding Loan Balance	$ 29	$ 75
Commercial Real Estate [Member]
Financing Receivable, Modifications [Line Items]
Number of Loans | SecurityLoan	20	29
Pre-Modification Outstanding Loan Balance	$ 47	$ 16
Post-Modification Outstanding Loan Balance	$ 46	$ 16
Residential Mortgages [Member]
Financing Receivable, Modifications [Line Items]
Number of Loans | SecurityLoan	96	148
Pre-Modification Outstanding Loan Balance	$ 14	$ 17
Post-Modification Outstanding Loan Balance	$ 13	$ 16
Other Retail [Member]
Financing Receivable, Modifications [Line Items]
Number of Loans | SecurityLoan	573	559
Pre-Modification Outstanding Loan Balance	$ 11	$ 11
Post-Modification Outstanding Loan Balance	$ 10	$ 10
Credit Card [Member]
Financing Receivable, Modifications [Line Items]
Number of Loans | SecurityLoan	9,648	8,546
Pre-Modification Outstanding Loan Balance	$ 50	$ 43
Post-Modification Outstanding Loan Balance	$ 51	$ 43
Total Loans, Excluding Loans Purchased from GNMA Mortgage Pools [Member]
Financing Receivable, Modifications [Line Items]
Number of Loans | SecurityLoan	11,250	9,905
Pre-Modification Outstanding Loan Balance	$ 158	$ 168
Post-Modification Outstanding Loan Balance	$ 149	$ 160
Government National Mortgage Association [Member]
Financing Receivable, Modifications [Line Items]
Number of Loans | SecurityLoan	1,538	888
Pre-Modification Outstanding Loan Balance	$ 203	$ 117
Post-Modification Outstanding Loan Balance	$ 195	$ 113

Loans and Allowance for Cred_14

Loans and Allowance for Credit Losses - Summary of Loans Modified as TDRs in the Past Twelve Months that have Subsequently Defaulted (Detail) $ in Millions	3 Months Ended
	Mar. 31, 2019USD ($)SecurityLoan	Mar. 31, 2018USD ($)SecurityLoan
Financing Receivable, Modifications [Line Items]
Number of Loans	2,663	2,649
Amount Defaulted | $	$ 54	$ 58
Commercial [Member]
Financing Receivable, Modifications [Line Items]
Number of Loans	234	239
Amount Defaulted | $	$ 5	$ 9
Commercial Real Estate [Member]
Financing Receivable, Modifications [Line Items]
Number of Loans	8	8
Amount Defaulted | $	$ 6	$ 4
Residential Mortgages [Member]
Financing Receivable, Modifications [Line Items]
Number of Loans	96	56
Amount Defaulted | $	$ 10	$ 4
Other Retail [Member]
Financing Receivable, Modifications [Line Items]
Number of Loans	147	77
Amount Defaulted | $	$ 7	$ 1
Credit Card [Member]
Financing Receivable, Modifications [Line Items]
Number of Loans	2,054	2,036
Amount Defaulted | $	$ 9	$ 9
Covered Loans [Member]
Financing Receivable, Modifications [Line Items]
Number of Loans		1
Total Loans, Excluding Loans Purchased from GNMA Mortgage Pools [Member]
Financing Receivable, Modifications [Line Items]
Number of Loans	2,539	2,417
Amount Defaulted | $	$ 37	$ 27
Government National Mortgage Association [Member]
Financing Receivable, Modifications [Line Items]
Number of Loans	124	232
Amount Defaulted | $	$ 17	$ 31

Leases - Additional Information

Leases - Additional Information (Detail) $ in Millions	3 Months Ended
	Mar. 31, 2019USD ($)
Operating Leased Assets [Line Items]
Lease revenue	$ 239
Lease cost	$ 95
Minimum [Member] | Retail Leasing [Member]
Operating Leased Assets [Line Items]
Lease term	3 years
Maximum [Member] | Retail Leasing [Member]
Operating Leased Assets [Line Items]
Lease term	5 years

Leases - Components of Net Inve

Leases - Components of Net Investment in Sales - Type and Direct Financing Leases (Detail) - USD ($) $ in Millions	Mar. 31, 2019	Dec. 31, 2018
Net Investment in Leases [Abstract]
Lease receivables	$ 12,204	$ 12,207
Unguaranteed residual values accruing to the lessor's benefit	1,898	1,877
Total net investment in sales-type and direct financing leases	$ 14,102	$ 14,084

Leases - Contractual Future Lea

Leases - Contractual Future Lease Payments to be Received (Detail) - USD ($) $ in Millions	Mar. 31, 2019	Dec. 31, 2018
Leases [Abstract]
Sales-type and direct finance leases, One Year or Less	$ 4,463
Sales-type and direct finance leases, Over One Through Two Years	3,998
Sales-type and direct finance leases, Over Two Through Three Years	2,630
Sales-type and direct finance leases, Over Three Through Four Years	1,286
Sales-type and direct finance leases, Over Four Through Five Years	367
Sales-type and direct finance leases, thereafter	530
Sales-type and direct finance leases, lease payments	13,274
Sales-type and direct finance leases, amounts representing interest	(1,070)
Sales-type and direct finance leases, lease receivables	12,204	$ 12,207
Operating leases, One Year or Less	181
Operating leases, Over One Through Two Years	145
Operating leases, Over Two Through Three Years	103
Operating leases, Over Three Through Four Years	68
Operating leases, Over Four Through Five Years	48
Operating leases, thereafter	68
Operating leases, lease payments	$ 613

Leases - Summary of Amounts Rel

Leases - Summary of Amounts Relevant to Company's Assets Leased for Use in its Operations (Detail) $ in Millions	3 Months Ended
	Mar. 31, 2019USD ($)
Cash paid for amounts included in the measurement of lease liabilities
Operating cash flows from operating leases	$ 75
Operating cash flows from finance leases	2
Financing cash flows from finance leases	3
Right of use assets obtained in exchange for new operating lease liabilities	36
Right of use assets obtained in exchange for new finance lease liabilities	$ 1
Weighted-average remaining lease term of operating leases (in years)	7 years 9 months 18 days
Weighted-average remaining lease term of finance leases (in years)	10 years 8 months 12 days
Weighted-average discount rate of operating leases	3.30%
Weighted-average discount rate of finance leases	17.30%

Leases - Schedule of Contractua

Leases - Schedule of Contractual Future Lease Obligations (Detail) $ in Millions	Mar. 31, 2019USD ($)
Contractual Obligation, Fiscal Year Maturity Schedule [Abstract]
Operating leases, One year or Less	$ 286
Operating leases, Over One Through Two Years	260
Operating leases, Over Two Through Three Years	228
Operating leases, Over Three Through Four Years	191
Operating leases, Over Four Through Five Years	148
Operating leases, Thereafter	466
Operating leases	1,579
Operating leases	1,579
Operating leases, amounts representing interest	(183)
Operating leases, lease liabilities	1,396
Finance leases, One Year or Less	17
Finance leases, Over One Through Two Years	15
Finance leases, Over Two Through Three Years	12
Finance leases, Over Three Through Four Years	10
Finance leases, Over Four Through Five Years	9
Finance leases, thereafter	36
Finance leases	99
Finance leases, Amounts representing interest	(34)
Finance leases, lease liabilities	$ 65

Accounting for Transfers and _3

Accounting for Transfers and Servicing of Financial Assets and Variable Interest Entities - Additional Information (Detail) - USD ($)	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018	Dec. 31, 2018
Minimum [Member]
Variable Interest Entity [Line Items]
Aggregate amount of investments in unconsolidated VIEs	$ 1,000,000		$ 81,000,000
Maximum [Member]
Variable Interest Entity [Line Items]
Aggregate amount of investments in unconsolidated VIEs	1,000,000		95,000,000
Financial Support Waived Fees [Member]
Variable Interest Entity [Line Items]
Financial or other support to money market funds	7,000,000	$ 6,000,000
Private Investment Funds and Partnerships [Member]
Variable Interest Entity [Line Items]
Investment carrying amount	30,000,000		27,000,000
Maximum exposure to loss	52,000,000		52,000,000
Community Development and Tax Advantaged Investments [Member]
Variable Interest Entity [Line Items]
Federal and state income tax credits recognized in tax expense	145,000,000	166,000,000
Expense related to investments	132,000,000	146,000,000
Investment tax credits	84,000,000	137,000,000
Expenses related to investments recognized in tax expense	81,000,000	$ 67,000,000
Investment carrying amount	5,836,000,000		5,823,000,000
Maximum exposure to loss	12,398,000,000		12,360,000,000
Assets related to consolidated VIEs	3,700,000,000		3,900,000,000
Liabilities related to consolidated VIEs	2,900,000,000		2,700,000,000
Conduit [Member]
Variable Interest Entity [Line Items]
Assets related to consolidated VIEs	14,000,000		14,000,000
Tender Option Bond Program [Member]
Variable Interest Entity [Line Items]
Assets related to consolidated VIEs	2,500,000,000		2,400,000,000
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	Mar. 31, 2019	Dec. 31, 2018
Variable Interest Entity [Line Items]
Investment carrying amount	$ 5,836	$ 5,823
Unfunded capital and other commitments	2,708	2,778
Maximum exposure to loss	$ 12,398	$ 12,360

Mortgage Servicing Rights - Add

Mortgage Servicing Rights - Additional Information (Detail) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018	Dec. 31, 2018
Transfers and Servicing of Financial Assets [Abstract]
Residential mortgage loans serviced for others including subserviced mortgages with no corresponding MSRs asset	$ 230,500		$ 231,500
Gain (Loss) on fair value changes of MSRs due to changes in valuation assumptions and derivatives used to economically hedge MSRs	11	$ 19
Loan servicing and ancillary fees	$ 179	$ 190

Mortgage Servicing Rights - Cha

Mortgage Servicing Rights - Changes in Fair Value of Capitalized MSRs (Detail) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Transfers and Servicing of Financial Assets [Abstract]
Balance at beginning of period	$ 2,791	$ 2,645
Rights purchased	1	2
Rights capitalized	78	100
Changes in fair value of MSRs
Due to fluctuations in market interest rates	(119)	114
Due to revised assumptions or models	11	24
Other changes in fair value	(106)	(105)
Balance at end of period	$ 2,656	$ 2,780

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	Mar. 31, 2019	Dec. 31, 2018
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	$ (598)	$ (501)
Net fair value 50 basis points	(271)	(223)
Net fair value 25 basis points	(128)	(105)
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	538	455
Net fair value 50 basis points	269	215
Net fair value 25 basis points	132	104
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	(60)	(46)
Net fair value 50 basis points	(2)	(8)
Net fair value 25 basis points	4	(1)
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	372	295
Net fair value 50 basis points	213	171
Net fair value 25 basis points	114	92
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	(429)	(321)
Net fair value 50 basis points	(232)	(177)
Net fair value 25 basis points	(123)	(94)
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	(57)	(26)
Net fair value 50 basis points	(19)	(6)
Net fair value 25 basis points	$ (9)	$ (2)

Mortgage Servicing Rights - MSR

Mortgage Servicing Rights - MSRs and Related Characteristics by Portfolio (Detail) $ in Millions	3 Months Ended	12 Months Ended
	Mar. 31, 2019USD ($)BasisPointMultiple	Dec. 31, 2018USD ($)BasisPointMultiple	Mar. 31, 2018USD ($)	Dec. 31, 2017USD ($)
Servicing Assets at Fair Value [Line Items]
Fair value	$ 2,656	$ 2,791	$ 2,780	$ 2,645
Mortgage Servicing Rights [Member]
Servicing Assets at Fair Value [Line Items]
Servicing portfolio	228,279	229,284
Fair value	$ 2,656	$ 2,791
Value (bps) | BasisPoint	116	122
Weighted-average servicing fees (bps) | BasisPoint	30	30
Multiple (value/servicing fees) | Multiple	3.91	4.11
Weighted-average note rate	4.17%	4.15%
Weighted-average age (in years)	4 years 6 months	4 years 3 months 18 days
Weighted-average expected prepayment (constant prepayment rate)	10.70%	9.50%
Weighted-average expected life (in years)	6 years 8 months 12 days	7 years 2 months 12 days
Weighted-average option adjusted spread	7.60%	7.60%
HFA [Member] | Mortgage Servicing Rights [Member]
Servicing Assets at Fair Value [Line Items]
Servicing portfolio	$ 45,133	$ 44,384
Fair value	$ 510	$ 526
Value (bps) | BasisPoint	113	119
Weighted-average servicing fees (bps) | BasisPoint	34	34
Multiple (value/servicing fees) | Multiple	3.30	3.45
Weighted-average note rate	4.63%	4.59%
Weighted-average age (in years)	3 years 4 months 24 days	3 years 3 months 18 days
Weighted-average expected prepayment (constant prepayment rate)	10.80%	9.80%
Weighted-average expected life (in years)	7 years 2 months 12 days	7 years 8 months 12 days
Weighted-average option adjusted spread	8.60%	8.60%
Government Insured [Member] | Mortgage Servicing Rights [Member]
Servicing Assets at Fair Value [Line Items]
Servicing portfolio	$ 35,785	$ 35,990
Fair value	$ 451	$ 465
Value (bps) | BasisPoint	126	129
Weighted-average servicing fees (bps) | BasisPoint	36	36
Multiple (value/servicing fees) | Multiple	3.49	3.63
Weighted-average note rate	3.99%	3.97%
Weighted-average age (in years)	4 years 9 months 18 days	4 years 8 months 12 days
Weighted-average expected prepayment (constant prepayment rate)	12.00%	11.00%
Weighted-average expected life (in years)	6 years 3 months 18 days	6 years 8 months 12 days
Weighted-average option adjusted spread	8.20%	8.30%
Conventional [Member] | Mortgage Servicing Rights [Member]
Servicing Assets at Fair Value [Line Items]
Servicing portfolio	$ 147,361	$ 148,910
Fair value	$ 1,695	$ 1,800
Value (bps) | BasisPoint	115	121
Weighted-average servicing fees (bps) | BasisPoint	27	27
Multiple (value/servicing fees) | Multiple	4.28	4.52
Weighted-average note rate	4.07%	4.06%
Weighted-average age (in years)	4 years 8 months 12 days	4 years 6 months
Weighted-average expected prepayment (constant prepayment rate)	10.30%	9.10%
Weighted-average expected life (in years)	6 years 7 months 6 days	7 years 1 month 6 days
Weighted-average option adjusted spread	7.10%	7.20%

Preferred Stock - Additional In

Preferred Stock - Additional Information (Detail) - shares	Mar. 31, 2019	Dec. 31, 2018
Equity [Abstract]
Number of preferred stock shares authorized	50,000,000	50,000,000

Preferred Stock - Number of Sha

Preferred Stock - Number of Shares Issued and Outstanding and Carrying Amount of Preferred Stock (Detail) - USD ($) $ in Millions	Mar. 31, 2019	Dec. 31, 2018
Class of Stock [Line Items]
Shares Issued and Outstanding	209,510	209,510
Liquidation Preference	$ 6,176	$ 6,176
Discount	192	192
Carrying Amount	$ 5,984	$ 5,984
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	23,000
Liquidation Preference	$ 575	$ 575
Discount	10	10
Carrying Amount	$ 565	$ 565

Preferred Stock - Number of S_2

Preferred Stock - Number of Shares Issued and Outstanding and Carrying Amount of Preferred Stock (Parenthetical) (Detail) - $ / shares	Mar. 31, 2019	Dec. 31, 2018
Equity [Abstract]
Preferred stock, par value	$ 1	$ 1

Accumulated Other Comprehensi_3

Accumulated Other Comprehensive Income (Loss) - Reconciliation of Transactions Affecting Accumulated Other Comprehensive Income (Loss) Included in Shareholders' Equity (Detail) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Accumulated Other Comprehensive Income (Loss) [Line Items]
Balance at beginning of period	$ (2,322)	$ (1,404)
Revaluation of tax related balances		(300)
Changes in unrealized gains and losses	785	(776)
Changes in unrealized gains and losses	(74)	86
Changes in unrealized gains and losses		(3)
Changes in unrealized gains and losses	711	(693)
Foreign currency translation adjustment	16	13
Reclassification to earnings of realized gains and losses	8	29
Applicable income taxes	(186)	162
Balance at end of period	(1,773)	(2,193)
Foreign Currency Translation [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Balance at beginning of period	(84)	(69)
Revaluation of tax related balances		(13)
Foreign currency translation adjustment	16	13
Applicable income taxes	(4)	(7)
Balance at end of period	(72)	(76)
Unrealized Gains (Losses) on Retirement Plans [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Balance at beginning of period	(1,418)	(1,066)
Revaluation of tax related balances		(229)
Changes in unrealized gains and losses		(3)
Reclassification to earnings of realized gains and losses	22	34
Applicable income taxes	(6)	(7)
Balance at end of period	(1,402)	(1,271)
Unrealized Gains (Losses) on Derivative Hedges [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Balance at beginning of period	112	71
Revaluation of tax related balances		15
Changes in unrealized gains and losses	(74)	86
Reclassification to earnings of realized gains and losses	(8)	3
Applicable income taxes	21	(23)
Balance at end of period	51	152
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	14	17
Revaluation of tax related balances		4
Reclassification to earnings of realized gains and losses	(1)	(3)
Applicable income taxes		1
Balance at end of period	13	19
Unrealized Gains (Losses) on Investment Securities Available-For-Sale [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Balance at beginning of period	(946)	(357)
Revaluation of tax related balances		(77)
Changes in unrealized gains and losses	785	(776)
Reclassification to earnings of realized gains and losses	(5)	(5)
Applicable income taxes	(197)	198
Balance at end of period	$ (363)	$ (1,017)

Accumulated Other Comprehensi_4

Accumulated Other Comprehensive Income (Loss) - Impact to Net Income for Items Reclassified out of Accumulated Other Comprehensive Income and into Earnings (Detail) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Realized gains (losses) on sale of investment securities	$ 5	$ 5
Amortization of unrealized gains on securities transferred from available-for-sale to held-to-maturity, Interest income	4,351	3,791
Realized gains (losses) on derivative hedges	(1,092)	(623)
Actuarial gains (losses) and prior service cost (credit) amortization	(333)	(330)
Applicable income taxes	(378)	(362)
Net income	1,708	1,682
Reclassification Out of Accumulated Other Comprehensive Income [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Net income	(6)	(22)
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	5	5
Applicable income taxes	(2)	(1)
Net income	3	4
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	1	3
Applicable income taxes		(1)
Net income	1	2
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	8	(3)
Applicable income taxes	(2)	1
Net income	6	(2)
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	(22)	(34)
Applicable income taxes	6	8
Net income	$ (16)	$ (26)

Earnings Per Share - Components

Earnings Per Share - Components of Earnings Per Share (Detail) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	3 Months Ended
	Mar. 31, 2019		Mar. 31, 2018
Earnings Per Share [Abstract]
Net income attributable to U.S. Bancorp	$ 1,699		$ 1,675
Preferred dividends	(79)	[1]	(70)	[2]
Earnings allocated to participating stock awards	(7)		(8)
Net income applicable to U.S. Bancorp common shareholders	$ 1,613		$ 1,597
Average common shares outstanding	1,602		1,652
Net effect of the exercise and assumed purchase of stock awards	3		5
Average diluted common shares outstanding	1,605		1,657
Earnings per common share	$ 1.01		$ 0.97
Diluted earnings per common share	$ 1		$ 0.96
[1]	Reflects dividends declared per share on the Company's Series A, Series B, Series F, Series H, Series J and Series K Non-Cumulative Perpetual Preferred Stock of $951.828, $218.75, $406.25, $321.88, $662.50 and $343.75, respectively.
[2]	Reflects dividends declared per share on the Company's Series A, Series B, Series F, Series H and Series J Non-Cumulative Perpetual Preferred Stock of $875.00, $218.75, $406.25, $321.88 and $662.50, respectively.

Earnings Per Share - Additional

Earnings Per Share - Additional Information (Detail) - shares shares in Millions	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Stock Option [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Options outstanding of common shares	1	1

Employee Benefits - Components

Employee Benefits - Components of Net Periodic Benefit Cost (Detail) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Pension Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Service cost	$ 48	$ 52
Interest cost	62	56
Expected return on plan assets	(95)	(95)
Actuarial loss (gain) amortization	24	37
Net periodic benefit cost	39	50
Postretirement Welfare Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Interest cost	1	1
Expected return on plan assets	(1)	(1)
Prior service cost (credit) amortization	(1)	(1)
Actuarial loss (gain) amortization	(1)	(2)
Net periodic benefit cost	$ (2)	$ (3)

Income Taxes - Components of In

Income Taxes - Components of Income Tax Expense (Detail) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Federal
Current	$ 220	$ 234
Deferred	116	19
Federal income tax	336	253
State
Current	30	92
Deferred	12	17
State income tax	42	109
Applicable income taxes	$ 378	$ 362

Income Taxes - Additional Infor

Income Taxes - Additional Information (Detail) - USD ($) $ in Millions	3 Months Ended		12 Months Ended
	Mar. 31, 2019	Mar. 31, 2018	Dec. 31, 2018
Income Taxes Additional Information [Abstract]
Federal statutory rate	21.00%	21.00%	21.00%
Net deferred tax asset	$ 495		$ 809

Income Taxes - Reconciliation o

Income Taxes - Reconciliation of Expected Income Tax Expense at Federal Statutory Rate of 21 Percent to Company's Applicable Income Tax Expense (Detail) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Effective Income Tax Rate Reconciliation, Amount [Abstract]
Tax at statutory rate	$ 438	$ 429
State income tax, at statutory rates, net of federal tax benefit	84	89
Tax credits and benefits, net of related expenses	(103)	(115)
Exam resolutions	(49)	(49)
Tax-exempt income	(32)	(32)
Noncontrolling interests	(2)	(1)
Other items	42	41
Applicable income taxes	$ 378	$ 362

Derivative Instruments - Additi

Derivative Instruments - Additional Information (Detail) - USD ($) $ in Millions	9 Months Ended	12 Months Ended
	Dec. 31, 2019	Mar. 31, 2020	Mar. 31, 2019	Dec. 31, 2018
Derivative [Line Items]
Realized and unrealized gains (losses) on derivatives classified as cash flow hedges recorded in other comprehensive income (loss)			$ 51	$ 112
Non-derivative debt instruments designated as net investment hedges			1,100	$ 1,100
Fair value of derivatives under collateral agreements in a net liability position			353
Collateral posted by company netted against net liability position			271
Forward commitments to sell mortgage loans			4,000
Hedged mortgage loans held for sale			2,100
Unfunded mortgage loan commitments			$ 2,600
Scenario, Forecast [Member]
Derivative [Line Items]
Estimated gain to be reclassified from other comprehensive income (loss) into earnings	$ 10	$ 11

Derivative Instruments - Asset

Derivative Instruments - Asset and Liability Management Derivative Positions of Company (Detail) - Asset and Liability Management Positions [Member] - USD ($) $ in Millions	3 Months Ended	12 Months Ended
	Mar. 31, 2019	Dec. 31, 2018
Derivative [Line Items]
Notional Value, Assets	$ 36,566	$ 27,953
Fair Value, Assets	$ 199	155
Derivative Asset Average Remaining Maturity Period	0 years
Notional Value, Liabilities	$ 39,889	31,679
Fair Value, Liabilities	172	125
Other Derivatives [Member]
Derivative [Line Items]
Notional Value, Assets	210	$ 1
Fair Value, Assets	$ 3
Derivative Asset Average Remaining Maturity Period	7 days	3 days
Notional Value, Liabilities	$ 1,749	$ 1,458
Fair Value, Liabilities	$ 77	$ 84
Derivative Liability Average Remaining Maturity Period	1 year 1 month 6 days	1 year 6 months
Other Economic Hedges [Member] | Interest Rate Contracts [Member] | Receive Fixed/Pay Floating Swaps [Member]
Derivative [Line Items]
Notional Value, Assets	$ 7,101	$ 3,605
Derivative Asset Average Remaining Maturity Period	10 years 7 months 9 days	14 years 9 months 18 days
Notional Value, Liabilities	$ 2,226	$ 4,333
Derivative Liability Average Remaining Maturity Period	11 years 3 months 7 days	6 years 11 months 19 days
Other Economic Hedges [Member] | Interest Rate Contracts [Member] | Pay Fixed/Receive Floating Swaps [Member]
Derivative [Line Items]
Notional Value, Assets	$ 1,801	$ 4,333
Derivative Asset Average Remaining Maturity Period	12 years 2 months 19 days	6 years 11 months 19 days
Notional Value, Liabilities	$ 4,844	$ 1,132
Derivative Liability Average Remaining Maturity Period	6 years 3 months	7 years 7 months 20 days
Other Economic Hedges [Member] | Interest Rate Contracts [Member] | Futures and Forwards [Member] | Purchased [Member]
Derivative [Line Items]
Notional Value, Assets	$ 5,062	$ 2,839
Fair Value, Assets	$ 34	$ 27
Derivative Asset Average Remaining Maturity Period	3 months 18 days	25 days
Notional Value, Liabilities	$ 2,357	$ 1,140
Fair Value, Liabilities	$ 5	$ 5
Derivative Liability Average Remaining Maturity Period	14 days	18 days
Other Economic Hedges [Member] | Interest Rate Contracts [Member] | Futures and Forwards [Member] | Written [Member]
Derivative [Line Items]
Notional Value, Assets	$ 2,936	$ 994
Fair Value, Assets	$ 21	$ 3
Derivative Asset Average Remaining Maturity Period	14 days	21 days
Notional Value, Liabilities	$ 15,268	$ 13,968
Fair Value, Liabilities	$ 62	$ 30
Derivative Liability Average Remaining Maturity Period	5 months 19 days	8 months 19 days
Other Economic Hedges [Member] | Interest Rate Contracts [Member] | Options [Member] | Purchased [Member]
Derivative [Line Items]
Notional Value, Assets	$ 9,945	$ 5,080
Fair Value, Assets	$ 97	$ 88
Derivative Asset Average Remaining Maturity Period	3 years 3 months 3 days	10 years 9 months 7 days
Notional Value, Liabilities	$ 300
Derivative Liability Average Remaining Maturity Period	5 years
Other Economic Hedges [Member] | Interest Rate Contracts [Member] | Options [Member] | Written [Member]
Derivative [Line Items]
Notional Value, Assets	$ 1,105	$ 584
Fair Value, Assets	$ 30	$ 16
Derivative Asset Average Remaining Maturity Period	1 month 2 days	1 month 2 days
Notional Value, Liabilities	$ 1,006	$ 3
Fair Value, Liabilities	$ 20
Derivative Liability Average Remaining Maturity Period	1 year 11 months 23 days	1 month 2 days
Other Economic Hedges [Member] | Foreign Exchange Forward Contracts [Member]
Derivative [Line Items]
Notional Value, Assets	$ 324	$ 549
Fair Value, Assets	$ 1	$ 7
Derivative Asset Average Remaining Maturity Period	14 days	10 days
Notional Value, Liabilities	$ 362	$ 75
Fair Value, Liabilities	$ 2	$ 1
Derivative Liability Average Remaining Maturity Period	14 days	18 days
Other Economic Hedges [Member] | Equity Contracts [Member]
Derivative [Line Items]
Notional Value, Assets	$ 66	$ 19
Fair Value, Assets		$ 1
Derivative Asset Average Remaining Maturity Period	2 months 15 days	9 months 25 days
Notional Value, Liabilities	$ 70	$ 104
Fair Value, Liabilities		$ 2
Derivative Liability Average Remaining Maturity Period	3 months 18 days	5 months 12 days
Other Economic Hedges [Member] | Credit Contracts [Member]
Derivative [Line Items]
Notional Value, Assets	$ 2,377	$ 2,318
Fair Value, Assets	$ 1
Derivative Asset Average Remaining Maturity Period	3 years 3 months	3 years 6 months
Notional Value, Liabilities	$ 5,257	$ 4,923
Fair Value, Liabilities	$ 3	$ 2
Derivative Liability Average Remaining Maturity Period	4 years	4 years 14 days
Fair Value Hedges [Member] | Interest Rate Contracts [Member] | Receive Fixed/Pay Floating Swaps [Member]
Derivative [Line Items]
Notional Value, Assets	$ 1,300
Derivative Asset Average Remaining Maturity Period	4 years 9 months 7 days
Derivative Liability Average Remaining Maturity Period	0 years
Cash Flow Hedges [Member] | Interest Rate Contracts [Member] | Pay Fixed/Receive Floating Swaps [Member]
Derivative [Line Items]
Notional Value, Assets	$ 3,892	$ 7,422
Fair Value, Assets	$ 10	$ 8
Derivative Asset Average Remaining Maturity Period	5 years 5 months 23 days	3 years 1 month 9 days
Notional Value, Liabilities	$ 6,450	$ 4,320
Fair Value, Liabilities	$ 3
Derivative Liability Average Remaining Maturity Period	1 year 3 months 14 days	1 year 9 months 7 days
Net Investment Hedges [Member] | Foreign Exchange Forward Contracts [Member]
Derivative [Line Items]
Notional Value, Assets	$ 447	$ 209
Fair Value, Assets	$ 2	$ 5
Derivative Asset Average Remaining Maturity Period	18 days	18 days
Notional Value, Liabilities		$ 223
Fair Value, Liabilities		$ 1
Derivative Liability Average Remaining Maturity Period	0 years	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	3 Months Ended	12 Months Ended
	Mar. 31, 2019	Dec. 31, 2018
Derivative [Line Items]
Notional Value, Assets	$ 36,566	$ 27,953
Notional Value, Liabilities	39,889	31,679
Fair Value, Liabilities	172	125
Swap [Member] | Visa Class B Shares [Member]
Derivative [Line Items]
Notional Value, Liabilities	1,500	1,500
Fair Value, Liabilities	$ 74	$ 84
Derivative Liability Average Remaining Maturity Period	1 year 3 months	1 year 6 months
Underwriting Purchase and Sale Commitments [Member]
Derivative [Line Items]
Notional Value, Assets	$ 210	$ 1
Notional Value, Liabilities	$ 210	$ 1

Derivative Instruments - Custom

Derivative Instruments - Customer-Related Derivative Positions of Company (Detail) - Customer-Related Positions [Member] - USD ($) $ in Millions	3 Months Ended	12 Months Ended
	Mar. 31, 2019	Dec. 31, 2018
Derivative [Line Items]
Notional Value, Assets	$ 190,662	$ 182,021
Fair Value, Assets	2,018	1,855
Notional Value, Liabilities	191,363	183,744
Fair Value, Liabilities	1,435	1,670
Interest Rate Contracts [Member] | Receive Fixed/Pay Floating Swaps [Member]
Derivative [Line Items]
Notional Value, Assets	60,918	42,054
Fair Value, Assets	$ 1,140	$ 754
Derivative Asset Average Remaining Maturity Period	6 years 6 months 10 days	6 years 8 months 23 days
Notional Value, Liabilities	$ 50,227	$ 60,731
Fair Value, Liabilities	$ 220	$ 456
Derivative Liability Average Remaining Maturity Period	3 years 9 months 3 days	4 years 3 months 26 days
Interest Rate Contracts [Member] | Pay Fixed/Receive Floating Swaps [Member]
Derivative [Line Items]
Notional Value, Assets	$ 48,506	$ 60,970
Fair Value, Assets	$ 172	$ 288
Derivative Asset Average Remaining Maturity Period	3 years 7 months 24 days	3 years 10 months 24 days
Notional Value, Liabilities	$ 58,611	$ 40,499
Fair Value, Liabilities	$ 519	$ 420
Derivative Liability Average Remaining Maturity Period	6 years 4 months 28 days	6 years 6 months 26 days
Interest Rate Contracts [Member] | Other Derivatives [Member]
Derivative [Line Items]
Notional Value, Assets	$ 6,056	$ 5,777
Fair Value, Assets	$ 1	$ 2
Derivative Asset Average Remaining Maturity Period	3 years 7 months 2 days	3 years 9 months 7 days
Notional Value, Liabilities	$ 6,601	$ 6,496
Fair Value, Liabilities	$ 2	$ 2
Derivative Liability Average Remaining Maturity Period	3 years 21 days	2 years 8 months 19 days
Interest Rate Contracts [Member] | Options [Member] | Purchased [Member]
Derivative [Line Items]
Notional Value, Assets	$ 44,629	$ 41,711
Fair Value, Assets	$ 34	$ 51
Derivative Asset Average Remaining Maturity Period	1 year 4 months 9 days	1 year 6 months 14 days
Notional Value, Liabilities	$ 1,296	$ 1,940
Fair Value, Liabilities	$ 42	$ 30
Derivative Liability Average Remaining Maturity Period	9 years 3 months 29 days	1 year 11 months 23 days
Interest Rate Contracts [Member] | Options [Member] | Written [Member]
Derivative [Line Items]
Notional Value, Assets	$ 1,396	$ 2,060
Fair Value, Assets	$ 43	$ 32
Derivative Asset Average Remaining Maturity Period	8 years 11 months 1 day	2 years 25 days
Notional Value, Liabilities	$ 41,960	$ 39,538
Fair Value, Liabilities	$ 33	$ 51
Derivative Liability Average Remaining Maturity Period	1 year 3 months	1 year 5 months 8 days
Interest Rate Contracts [Member] | Futures [Member] | Purchased [Member]
Derivative [Line Items]
Notional Value, Assets	$ 1,085	$ 460
Fair Value, Assets	$ 1
Derivative Asset Average Remaining Maturity Period	1 year 3 months 10 days	1 year 6 months 29 days
Interest Rate Contracts [Member] | Futures [Member] | Written [Member]
Derivative [Line Items]
Notional Value, Liabilities	$ 3,634	$ 6,190
Fair Value, Liabilities	$ 3	$ 1
Derivative Liability Average Remaining Maturity Period	4 months 24 days	7 months 2 days
Foreign Exchange Rate Contracts [Member] | Forwards, Spots and Swaps [Member]
Derivative [Line Items]
Notional Value, Assets	$ 26,279	$ 26,210
Fair Value, Assets	$ 597	$ 681
Derivative Asset Average Remaining Maturity Period	1 year 29 days	10 months 28 days
Notional Value, Liabilities	$ 26,515	$ 25,571
Fair Value, Liabilities	$ 585	$ 663
Derivative Liability Average Remaining Maturity Period	1 year 3 months	10 months 17 days
Foreign Exchange Option [Member] | Purchased [Member]
Derivative [Line Items]
Notional Value, Assets	$ 1,763	$ 2,779
Fair Value, Assets	$ 30	$ 47
Derivative Asset Average Remaining Maturity Period	10 months 9 days	9 months
Foreign Exchange Option [Member] | Written [Member]
Derivative [Line Items]
Notional Value, Liabilities	$ 1,763	$ 2,779
Fair Value, Liabilities	$ 30	$ 47
Derivative Liability Average Remaining Maturity Period	10 months 9 days	9 months
Credit Contracts [Member]
Derivative [Line Items]
Notional Value, Assets	$ 30
Derivative Asset Average Remaining Maturity Period	5 years 2 months 23 days
Notional Value, Liabilities	$ 756
Fair Value, Liabilities	$ 1
Derivative Liability Average Remaining Maturity Period	5 years 2 months 23 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	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
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	$ (55)	$ 64
Derivative Instruments, Gains (Losses) Reclassified from Other Comprehensive Income (Loss) into Earnings	6	(2)
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	2	16
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	$ 16	$ (34)

Derivative Instruments - Effect

Derivative Instruments - Effect of Fair Value and Cash Flow Hedge Accounting Included in Interest Expense on Consolidated Statement of Income (Detail) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Derivative Instruments, Gain (Loss) [Line Items]
Total amount of interest expense presented in the Consolidated Statement of Income	$ 1,092	$ 623
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	21	43
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	(21)	(43)
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	$ (8)	$ 3

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	Mar. 31, 2019	Dec. 31, 2018
Derivative Instruments, Gain (Loss) [Line Items]
Carrying amount of the hedged assets (liabilities), Long-term debt	$ 1,318
Cumulative hedging Adjustment included in the carrying amount of the hedged assets (liabilities)	$ 3	$ (27)

Derivative Instruments - Summ_3

Derivative Instruments - Summary of Cumulative Hedging Adjustments and the Carrying Amount of Assets (Liabilities) Designated in Fair Value Hedges (Parenthetical) (Detail) - USD ($) $ in Millions	Mar. 31, 2019	Dec. 31, 2018
Fair Value Hedges [Member] | Long-term Debt Securities [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Cumulative hedging adjustment related to discontinued hedging relationships	$ (17)	$ (27)

Derivative Instruments - Summ_4

Derivative Instruments - Summary of Gains (Losses) Recognized in Earnings for Other Economic Hedges and Customer-Related Positions (Detail) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
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	$ 4
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	(1)	$ 8
Customer-Related Positions [Member] | Swaps [Member] | Commercial Products Revenue [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Gains (losses) recognized in earnings	20	3
Customer-Related Positions [Member] | Credit Contracts [Member] | Commercial Products Revenue [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Gains (losses) recognized in earnings	(3)
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	18	23
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	(17)	58
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	67	42
Asset and Liability Management Positions [Member] | Other Economic Hedges [Member] | Swaps [Member] | Mortgage Banking Revenue [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Gains (losses) recognized in earnings	111	(110)
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	(6)	(12)
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	(1)	$ (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	$ 1

Netting Arrangements for Cert_3

Netting Arrangements for Certain Financial Instruments and Securities Financing Activities - Additional Information (Detail) $ in Billions	Mar. 31, 2019USD ($)
Derivative [Line Items]
Notional amount of derivative	$ 458.5
Over the Counter Trades [Member]
Derivative [Line Items]
Notional amount of derivative	240
Exchange Cleared [Member]
Derivative [Line Items]
Notional amount of derivative	202.8
Exchange Traded [Member]
Derivative [Line Items]
Notional amount of derivative	$ 15.7

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	Mar. 31, 2019	Dec. 31, 2018
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items]
Repurchase agreements	$ 1,747	$ 2,594
Securities loaned	161	227
Gross amount of recognized liabilities for repurchase agreements and securities loaned	1,908	2,821
Overnight and Continuous [Member]
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items]
Repurchase agreements	1,169	1,179
Securities loaned	161	227
Gross amount of recognized liabilities for repurchase agreements and securities loaned	1,330	1,406
Less Than 30 Days [Member]
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items]
Repurchase agreements	105
Gross amount of recognized liabilities for repurchase agreements and securities loaned	105
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	473	470
Gross amount of recognized liabilities for repurchase agreements and securities loaned	473	470
U.S. Treasury and Agencies [Member]
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items]
Repurchase agreements	295	134
U.S. Treasury and Agencies [Member] | Overnight and Continuous [Member]
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items]
Repurchase agreements	295	134
Residential Mortgage-Backed Securities [Member] | Agency [Member]
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items]
Repurchase agreements	924	1,980
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	346	565
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	105
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	473	470
Corporate Debt Securities [Member]
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items]
Repurchase agreements	528	480
Securities loaned	161	227
Corporate Debt Securities [Member] | Overnight and Continuous [Member]
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items]
Repurchase agreements	528	480
Securities loaned	$ 161	$ 227

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	Mar. 31, 2019	Dec. 31, 2018
Offsetting [Abstract]
Derivative assets Gross Recognized Assets	$ 2,173	$ 1,987
Reverse repurchase agreements Gross Recognized Assets	3,868	205
Securities borrowed Gross Recognized Assets	1,361	1,069
Total Gross Recognized Assets	7,402	3,261
Derivative assets Gross amounts assets offset in consolidated balance sheet	(872)	(942)
Total Gross amounts assets offset in consolidated balance sheet	(872)	(942)
Derivative assets Net Amounts Presented in the Consolidated Balance Sheet	1,301	1,045
Reverse repurchase agreements Net Amounts Presented in the Consolidated Balance Sheet	3,868	205
Securities borrowed Net Amounts Presented in the Consolidated Balance Sheet	1,361	1,069
Total Net Amounts Presented in the Consolidated Balance Sheet	6,530	2,319
Derivative assets Gross financial instrument asset amounts not offset in consolidated balance sheet	(63)	(106)
Reverse repurchase agreements Gross financial instrument asset amounts not offset in consolidated balance sheet	(278)	(114)
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	(341)	(220)
Derivative assets Gross collateral received amounts not offset in consolidated balance sheet	(38)	(16)
Reverse repurchase agreements Gross collateral received amounts not offset in consolidated balance sheet	(3,586)	(91)
Securities borrowed Gross collateral received amounts not offset in consolidated balance sheet	(1,316)	(1,039)
Total Gross collateral received amounts not offset in consolidated balance sheet	(4,940)	(1,146)
Derivative assets Net Amount	1,200	923
Reverse repurchase agreements Net Amount	4
Securities borrowed Net Amount	45	30
Total Net Amount Assets	$ 1,249	$ 953

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	Mar. 31, 2019	Dec. 31, 2018
Offsetting [Abstract]
Cash collateral netted against derivative assets	$ 346	$ 236
Derivative assets not subject to netting arrangements	$ 44	$ 23

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	Mar. 31, 2019	Dec. 31, 2018
Offsetting [Abstract]
Derivative liabilities Gross recognized liabilities	$ 1,527	$ 1,710
Repurchase agreements Gross recognized liabilities	1,747	2,594
Securities loaned Gross recognized liabilities	161	227
Total Gross recognized liabilities	3,435	4,531
Derivative liabilities Gross amounts liabilities offset in consolidated balance sheet	(796)	(946)
Total Gross amounts liabilities offset in consolidated balance sheet	(796)	(946)
Derivative liabilities Net amounts liabilities presented in consolidated balance sheet	731	764
Repurchase agreements Net amounts liabilities presented in consolidated balance sheet	1,747	2,594
Securities loaned Net amounts liabilities presented in consolidated balance sheet	161	227
Total Net amounts liabilities presented in consolidated balance sheet	2,639	3,585
Derivative liabilities Gross financial instrument liability amounts not offset in consolidated balance sheet	(63)	(106)
Repurchase agreements Gross financial instrument liability amounts not offset in consolidated balance sheet	(278)	(114)
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	(341)	(220)
Repurchase agreements Gross collateral pledged amounts not offset in consolidated balance sheet	(1,469)	(2,480)
Securities loaned Gross collateral pledged amounts not offset in consolidated balance sheet	(158)	(224)
Total Gross collateral pledged amounts not offset in consolidated balance sheet	(1,627)	(2,704)
Derivative liabilities Net Amount	668	658
Repurchase agreements Net Amount	0	0
Securities loaned Net Amount	3	3
Total Net Amount Liabilities	$ 671	$ 661

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	Mar. 31, 2019	Dec. 31, 2018
Offsetting [Abstract]
Cash collateral netted against derivative liabilities	$ 270	$ 240
Derivative liabilities not subject to netting arrangements	$ 80	$ 85

Fair Values of Assets and Lia_3

Fair Values of Assets and Liabilities - Additional Information (Detail) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018	Dec. 31, 2018
Fair Value Disclosures [Abstract]
Mortgage loans held for sale measured at fair value, net gain (loss)	$ 18	$ 51
Carrying value of unfunded commitments, deferred non-yield related loan fees and standby letters of credit	526		$ 532
Other guarantees carrying value	$ 288		$ 263
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	113.00%
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]	3 Months Ended	12 Months Ended
	Mar. 31, 2019	Dec. 31, 2018
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Expected prepayment	10.70%	9.50%
Minimum [Member]
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Expected prepayment	8.00%
Option adjusted spread	7.00%
Maximum [Member]
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Expected prepayment	18.00%
Option adjusted spread	10.00%
Weighted Average [Member]
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Expected prepayment	11.00%
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]	Mar. 31, 2019
Minimum [Member]
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Expected loan close rate	3.00%
Inherent MSR value (basis points per loan)	17.00%
Maximum [Member]
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Expected loan close rate	100.00%
Inherent MSR value (basis points per loan)	202.00%
Weighted Average [Member]
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Expected loan close rate	79.00%
Inherent MSR value (basis points per loan)	127.00%

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		Mar. 31, 2019	Dec. 31, 2018	Mar. 31, 2018	Dec. 31, 2017
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative liabilities netting		$ (796)	$ (946)
Derivative assets netting		(872)	(942)
Available-for-sale securities	[1]	68,113	66,115
Mortgage loans held for sale		2,690	2,035
Mortgage servicing rights		2,656	2,791	$ 2,780	$ 2,645
Residential Mortgage-Backed Securities [Member] | Agency [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities		41,879	39,752
Commercial [Member] | Agency [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities		2	2
Asset-Backed Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities		395
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		395	403
Fair Value, Measurements, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative liabilities total		811	849
Derivative assets total		1,345	1,068
Available-for-sale securities		68,113	66,115
Mortgage loans held for sale		2,690	2,035
Mortgage servicing rights		2,656	2,791
Other assets		1,973	1,665
Total		76,777	73,674
Short-term borrowings and other liabilities		1,472	1,218
Total		2,283	2,067
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		(796)	(946)
Derivative assets netting		(872)	(942)
Total		(872)	(942)
Total		(796)	(946)
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		18,919	19,257
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		6,918	6,701
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		41,879	39,752
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	2
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		395	403
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		8	1
Available-for-sale securities		18,266	18,585
Other assets		249	392
Total		18,515	18,977
Short-term borrowings and other liabilities		189	199
Total		197	200
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		18,266	18,585
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		1,242	1,291
Derivative assets before netting		1,405	1,427
Available-for-sale securities		49,847	47,530
Mortgage loans held for sale		2,690	2,035
Other assets		1,724	1,273
Total		55,666	52,265
Short-term borrowings and other liabilities		1,283	1,019
Total		2,525	2,310
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		653	672
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		6,918	6,701
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		41,879	39,752
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	2
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		395	403
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		357	503
Derivative assets before netting		812	583
Mortgage servicing rights		2,656	2,791
Total		3,468	3,374
Total		$ 357	$ 503
[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) - USD ($) $ in Millions	Mar. 31, 2019	Dec. 31, 2018
Fair Value Disclosures [Abstract]
Equity investments without readily determinable fair values	$ 86	$ 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	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Mortgage Servicing Rights [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Beginning of Period Balance	$ 2,791	$ 2,645
Net Gains (Losses) Included in Net Income	(214)	33
Purchases	1	2
Sales	0	0
Issuances	78	100
Settlements	0	0
End of Period Balance	2,656	2,780
Net Change in Unrealized Gains (Losses) Relating to Assets and Liabilities Held at End of Period	(214)	33
Derivative [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Beginning of Period Balance	80	107
Net Gains (Losses) Included in Net Income	363	(251)
Purchases	1	1
Sales	(7)	(6)
Issuances	0	0
Settlements	18	17
End of Period Balance	455	(132)
Net Change in Unrealized Gains (Losses) Relating to Assets and Liabilities Held at End of Period	$ 424	$ (212)

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	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
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	$ 280	$ (271)
Net Change in net derivative asset and liability unrealized gains (losses) relating to assets still held at end of period	388	(240)
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	83	20
Net Change in net derivative asset and liability unrealized gains (losses) relating to assets still held at end of period	$ 36	$ 28

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	Mar. 31, 2019	Dec. 31, 2018
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans	$ 247	$ 40
Other assets	15	57
Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans	247	40
Other assets	$ 15	$ 57

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	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Loans Receivable [Member]
Fair Value Assets Measured On Nonrecurring Basis Losses Recognized [Line Items]
Losses recognized related to nonrecurring fair value measurements	$ 44	$ 23
Other Assets [Member]
Fair Value Assets Measured On Nonrecurring Basis Losses Recognized [Line Items]
Losses recognized related to nonrecurring fair value measurements	$ 3	$ 5

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	Mar. 31, 2019	Dec. 31, 2018
Fair Value Disclosures [Abstract]
Fair value carrying amount, total loans	$ 2,690	$ 2,035
Fair value carrying amount, nonaccrual loans	2	2
Fair value carrying amount, loans 90 days or more past due	0	0
Aggregate unpaid principal, total loans	2,596	1,972
Aggregate unpaid principal, nonaccrual loans	2	2
Aggregate unpaid principal, loans 90 days or more past due	0	0
Carrying amount over (under) unpaid principal, total loans	94	63
Carrying amount over (under) unpaid principal, nonaccrual loans	0	0
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	Mar. 31, 2019	Dec. 31, 2018	Mar. 31, 2018	Dec. 31, 2017
Financial Assets
Cash and due from banks	$ 18,115	$ 21,453	$ 19,246	$ 19,505
Investment securities held-to-maturity	46,285	46,050
Loans	283,709	282,837
Financial Liabilities
Long-term debt	40,680	41,340
Carrying Amount [Member]
Financial Assets
Cash and due from banks	18,115	21,453
Federal funds sold and securities purchased under resale agreements	3,868	306
Investment securities held-to-maturity	46,285	46,050
Loans held for sale	35	21
Loans	283,709	282,837
Other	2,065	2,412
Financial Liabilities
Time deposits	47,051	44,554
Short-term borrowings	13,924	12,921
Long-term debt	40,680	41,340
Other	3,463	1,726
Fair Value [Member]
Financial Assets
Cash and due from banks	18,115	21,453
Federal funds sold and securities purchased under resale agreements	3,868	306
Investment securities held-to-maturity	45,735	44,964
Loans held for sale	35	21
Loans	286,873	284,790
Other	2,065	2,412
Financial Liabilities
Time deposits	46,912	44,140
Short-term borrowings	13,691	12,678
Long-term debt	40,705	41,003
Other	3,463	1,726
Fair Value [Member] | Level 1 [Member]
Financial Assets
Cash and due from banks	18,115	21,453
Investment securities held-to-maturity	4,495	4,594
Fair Value [Member] | Level 2 [Member]
Financial Assets
Federal funds sold and securities purchased under resale agreements	3,868	306
Investment securities held-to-maturity	41,228	40,359
Other	1,008	1,241
Financial Liabilities
Time deposits	46,912	44,140
Short-term borrowings	13,691	12,678
Long-term debt	40,705	41,003
Other	1,396
Fair Value [Member] | Level 3 [Member]
Financial Assets
Investment securities held-to-maturity	12	11
Loans held for sale	35	21
Loans	286,873	284,790
Other	1,057	1,171
Financial Liabilities
Other	$ 2,067	$ 1,726

Guarantees and Contingent Lia_3

Guarantees and Contingent Liabilities - Additional Information (Detail) - USD ($) shares in Millions, $ in Millions	3 Months Ended
	Mar. 31, 2019	Dec. 31, 2018
Airline Processing Arrangements [Member]
Guarantees And Contingent Liabilities (Textual) [Abstract]
Value of airline tickets purchased to deliver at future date through card transactions	$ 11,900
Representation and Warranty [Member]
Guarantees And Contingent Liabilities (Textual) [Abstract]
Representation and warranty reserve	10	$ 10
Unresolved representation and warranty claims from GSEs	17	$ 15
Escrow Deposits Letters of Credit Indemnities [Member] | Airline Processing Arrangements [Member]
Guarantees And Contingent Liabilities (Textual) [Abstract]
Company held collateral in escrow deposits, letters of credit and indemnities from financial institutions and liens on various assets	1.1
Merchant Escrow Deposits [Member] | Airline Processing Arrangements [Member]
Guarantees And Contingent Liabilities (Textual) [Abstract]
Company held collateral in escrow deposits, letters of credit and indemnities from financial institutions and liens on various assets	$ 50
Visa Class B Shares [Member]
Guarantees And Contingent Liabilities (Textual) [Abstract]
Number of shares sold	0.4
Remaining shares held by the Company	0.9

Guarantees and Contingent Lia_4

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	$ 52
Maximum Potential Future Payments	11,177
Third Party Borrowing Arrangements [Member]
Guarantor Obligations [Line Items]
Maximum Potential Future Payments	12
Securities Lending Indemnifications [Member]
Guarantor Obligations [Line Items]
Collateral Held	5,444
Maximum Potential Future Payments	5,350
Asset Sales [Member]
Guarantor Obligations [Line Items]
Carrying Amount	115
Maximum Potential Future Payments	7,328
Merchant Processing [Member]
Guarantor Obligations [Line Items]
Collateral Held	1,884
Carrying Amount	64
Maximum Potential Future Payments	105,793
Tender Option Bond Program Guarantee [Member]
Guarantor Obligations [Line Items]
Collateral Held	2,480
Maximum Potential Future Payments	2,329
Minimum Revenue Guarantees [Member]
Guarantor Obligations [Line Items]
Maximum Potential Future Payments	3
Other Guarantees [Member]
Guarantor Obligations [Line Items]
Carrying Amount	109
Maximum Potential Future Payments	$ 1,370