Credit Quality and the Allowance for Loan and Lease Losses - Summary of the Credit Risk Profile of the Bancorp's Residential Mortgage and Consumer Portfolio Segments by Class (Details) - USD ($) $ in Millions		3 Months Ended		9 Months Ended
		Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021	Dec. 31, 2021
Financing Receivable, Modifications
Total	[1],[2]	$ 119,999		$ 119,999		$ 112,050
Residential Mortgage
Financing Receivable, Modifications
Residential mortgage loans		125	$ 156	125	$ 156	154
Residential Mortgage | Federal Housing Administration Loan
Financing Receivable, Modifications
Losses due to claim denials and curtailments		0	$ 1	2	$ 2
Residential Mortgage | 30-89 days past due | Federal Housing Administration Loan
Financing Receivable, Modifications
Total		74		74		49
Residential Mortgage | 90 days or more past due
Financing Receivable, Modifications
Residential mortgage loans						2
Residential Mortgage | 90 days or more past due | Federal Housing Administration Loan
Financing Receivable, Modifications
Total		139		139		139
Residential Mortgage | Nonperforming
Financing Receivable, Modifications
Residential mortgage loans		2		2
Residential Mortgage | Residential mortgage loans
Financing Receivable, Modifications
Year One		2,837		2,837		5,887
Year Two		5,532		5,532		3,312
Year Three		3,047		3,047		1,300
Year Four		1,084		1,084		422
Year Five		365		365		966
Prior		4,610		4,610		4,356
Revolving Loans		0		0		0
Revolving Loans Converted to Term Loans		0		0		0
Total		17,475		17,475		16,243
Residential Mortgage | Residential mortgage loans | Performing
Financing Receivable, Modifications
Year One		2,837		2,837		5,887
Year Two		5,530		5,530		3,312
Year Three		3,044		3,044		1,299
Year Four		1,080		1,080		422
Year Five		359		359		964
Prior		4,512		4,512		4,326
Revolving Loans		0		0		0
Revolving Loans Converted to Term Loans		0		0		0
Total		17,362		17,362		16,210
Residential Mortgage | Residential mortgage loans | Performing | Current
Financing Receivable, Modifications
Year One		2,836		2,836		5,886
Year Two		5,528		5,528		3,309
Year Three		3,042		3,042		1,294
Year Four		1,079		1,079		418
Year Five		358		358		954
Prior		4,495		4,495		4,261
Revolving Loans		0		0		0
Revolving Loans Converted to Term Loans		0		0		0
Total		17,338		17,338		16,122
Residential Mortgage | Residential mortgage loans | Performing | 30-89 days past due
Financing Receivable, Modifications
Year One		1		1		1
Year Two		1		1		1
Year Three		2		2		1
Year Four		1		1		1
Year Five		0		0		1
Prior		12		12		13
Revolving Loans		0		0		0
Revolving Loans Converted to Term Loans		0		0		0
Total		17		17		18
Residential Mortgage | Residential mortgage loans | Performing | 90 days or more past due
Financing Receivable, Modifications
Year One		0		0		0
Year Two		1		1		2
Year Three		0		0		4
Year Four		0		0		3
Year Five		1		1		9
Prior		5		5		52
Revolving Loans		0		0		0
Revolving Loans Converted to Term Loans		0		0		0
Total		7		7		70
Residential Mortgage | Residential mortgage loans | Nonperforming
Financing Receivable, Modifications
Year One		0		0		0
Year Two		2		2		0
Year Three		3		3		1
Year Four		4		4		0
Year Five		6		6		2
Prior		98		98		30
Revolving Loans		0		0		0
Revolving Loans Converted to Term Loans		0		0		0
Total		113		113		33
Consumer | Home equity
Financing Receivable, Modifications
Year One		12		12		2
Year Two		2		2		6
Year Three		5		5		13
Year Four		9		9		18
Year Five		13		13		2
Prior		104		104		126
Revolving Loans		3,839		3,839		3,904
Revolving Loans Converted to Term Loans		16		16		13
Total		4,000		4,000		4,084
Consumer | Home equity | Performing
Financing Receivable, Modifications
Year One		12		12		2
Year Two		2		2		6
Year Three		5		5		13
Year Four		9		9		18
Year Five		13		13		2
Prior		96		96		117
Revolving Loans		3,780		3,780		3,837
Revolving Loans Converted to Term Loans		15		15		12
Total		3,932		3,932		4,007
Consumer | Home equity | Performing | Current
Financing Receivable, Modifications
Year One		12		12		2
Year Two		2		2		6
Year Three		5		5		13
Year Four		9		9		18
Year Five		13		13		2
Prior		93		93		113
Revolving Loans		3,760		3,760		3,815
Revolving Loans Converted to Term Loans		15		15		12
Total		3,909		3,909		3,981
Consumer | Home equity | Performing | 30-89 days past due
Financing Receivable, Modifications
Year One		0		0		0
Year Two		0		0		0
Year Three		0		0		0
Year Four		0		0		0
Year Five		0		0		0
Prior		2		2		3
Revolving Loans		20		20		22
Revolving Loans Converted to Term Loans		0		0		0
Total		22		22		25
Consumer | Home equity | Performing | 90 days or more past due
Financing Receivable, Modifications
Year One		0		0		0
Year Two		0		0		0
Year Three		0		0		0
Year Four		0		0		0
Year Five		0		0		0
Prior		1		1		1
Revolving Loans		0		0		0
Revolving Loans Converted to Term Loans		0		0		0
Total		1		1		1
Consumer | Home equity | Nonperforming
Financing Receivable, Modifications
Year One		0		0		0
Year Two		0		0		0
Year Three		0		0		0
Year Four		0		0		0
Year Five		0		0		0
Prior		8		8		9
Revolving Loans		59		59		67
Revolving Loans Converted to Term Loans		1		1		1
Total		68		68		77
Consumer | Indirect secured consumer loans
Financing Receivable, Modifications
Year One		4,963		4,963		8,760
Year Two		6,466		6,466		4,244
Year Three		2,951		2,951		2,253
Year Four		1,437		1,437		926
Year Five		523		523		401
Prior		306		306		199
Revolving Loans		0		0		0
Revolving Loans Converted to Term Loans		0		0		0
Total		16,646		16,646		16,783
Consumer | Indirect secured consumer loans | Performing
Financing Receivable, Modifications
Year One		4,963		4,963		8,760
Year Two		6,465		6,465		4,232
Year Three		2,945		2,945		2,248
Year Four		1,434		1,434		921
Year Five		520		520		398
Prior		304		304		197
Revolving Loans		0		0		0
Revolving Loans Converted to Term Loans		0		0		0
Total		16,631		16,631		16,756
Consumer | Indirect secured consumer loans | Performing | Current
Financing Receivable, Modifications
Year One		4,944		4,944		8,732
Year Two		6,430		6,430		4,206
Year Three		2,920		2,920		2,221
Year Four		1,413		1,413		902
Year Five		508		508		389
Prior		298		298		194
Revolving Loans		0		0		0
Revolving Loans Converted to Term Loans		0		0		0
Total		16,513		16,513		16,644
Consumer | Indirect secured consumer loans | Performing | 30-89 days past due
Financing Receivable, Modifications
Year One		18		18		26
Year Two		32		32		24
Year Three		23		23		25
Year Four		19		19		17
Year Five		11		11		8
Prior		5		5		3
Revolving Loans		0		0		0
Revolving Loans Converted to Term Loans		0		0		0
Total		108		108		103
Consumer | Indirect secured consumer loans | Performing | 90 days or more past due
Financing Receivable, Modifications
Year One		1		1		2
Year Two		3		3		2
Year Three		2		2		2
Year Four		2		2		2
Year Five		1		1		1
Prior		1		1		0
Revolving Loans		0		0		0
Revolving Loans Converted to Term Loans		0		0		0
Total		10		10		9
Consumer | Indirect secured consumer loans | Nonperforming
Financing Receivable, Modifications
Year One		0		0		0
Year Two		1		1		12
Year Three		6		6		5
Year Four		3		3		5
Year Five		3		3		3
Prior		2		2		2
Revolving Loans		0		0		0
Revolving Loans Converted to Term Loans		0		0		0
Total		15		15		27
Consumer | Credit card
Financing Receivable, Modifications
Year One		0		0		0
Year Two		0		0		0
Year Three		0		0		0
Year Four		0		0		0
Year Five		0		0		0
Prior		0		0		0
Revolving Loans		1,770		1,770		1,766
Revolving Loans Converted to Term Loans		0		0		0
Total		1,770		1,770		1,766
Consumer | Credit card | Performing
Financing Receivable, Modifications
Year One		0		0		0
Year Two		0		0		0
Year Three		0		0		0
Year Four		0		0		0
Year Five		0		0		0
Prior		0		0		0
Revolving Loans		1,747		1,747		1,743
Revolving Loans Converted to Term Loans		0		0		0
Total		1,747		1,747		1,743
Consumer | Credit card | Performing | Current
Financing Receivable, Modifications
Year One		0		0		0
Year Two		0		0		0
Year Three		0		0		0
Year Four		0		0		0
Year Five		0		0		0
Prior		0		0		0
Revolving Loans		1,715		1,715		1,710
Revolving Loans Converted to Term Loans		0		0		0
Total		1,715		1,715		1,710
Consumer | Credit card | Performing | 30-89 days past due
Financing Receivable, Modifications
Year One		0		0		0
Year Two		0		0		0
Year Three		0		0		0
Year Four		0		0		0
Year Five		0		0		0
Prior		0		0		0
Revolving Loans		18		18		18
Revolving Loans Converted to Term Loans		0		0		0
Total		18		18		18
Consumer | Credit card | Performing | 90 days or more past due
Financing Receivable, Modifications
Year One		0		0		0
Year Two		0		0		0
Year Three		0		0		0
Year Four		0		0		0
Year Five		0		0		0
Prior		0		0		0
Revolving Loans		14		14		15
Revolving Loans Converted to Term Loans		0		0		0
Total		14		14		15
Consumer | Credit card | Nonperforming
Financing Receivable, Modifications
Year One		0		0		0
Year Two		0		0		0
Year Three		0		0		0
Year Four		0		0		0
Year Five		0		0		0
Prior		0		0		0
Revolving Loans		23		23		23
Revolving Loans Converted to Term Loans		0		0		0
Total		23		23		23
Consumer | Other consumer loans
Financing Receivable, Modifications
Year One		1,729		1,729		695
Year Two		613		613		532
Year Three		394		394		279
Year Four		193		193		176
Year Five		127		127		106
Prior		163		163		47
Revolving Loans		962		962		916
Revolving Loans Converted to Term Loans		24		24		1
Total		4,205		4,205		2,752
Consumer | Other consumer loans | Performing
Financing Receivable, Modifications
Year One		1,728		1,728		695
Year Two		612		612		532
Year Three		394		394		279
Year Four		193		193		176
Year Five		127		127		106
Prior		162		162		47
Revolving Loans		962		962		915
Revolving Loans Converted to Term Loans		24		24		1
Total		4,202		4,202		2,751
Consumer | Other consumer loans | Performing | Current
Financing Receivable, Modifications
Year One		1,723		1,723		692
Year Two		607		607		530
Year Three		391		391		275
Year Four		191		191		174
Year Five		125		125		105
Prior		160		160		47
Revolving Loans		957		957		913
Revolving Loans Converted to Term Loans		24		24		0
Total		4,178		4,178		2,736
Consumer | Other consumer loans | Performing | 30-89 days past due
Financing Receivable, Modifications
Year One		5		5		3
Year Two		5		5		2
Year Three		3		3		3
Year Four		2		2		2
Year Five		2		2		1
Prior		2		2		0
Revolving Loans		4		4		2
Revolving Loans Converted to Term Loans		0		0		1
Total		23		23		14
Consumer | Other consumer loans | Performing | 90 days or more past due
Financing Receivable, Modifications
Year One		0		0		0
Year Two		0		0		0
Year Three		0		0		1
Year Four		0		0		0
Year Five		0		0		0
Prior		0		0		0
Revolving Loans		1		1		0
Revolving Loans Converted to Term Loans		0		0		0
Total		1		1		1
Consumer | Other consumer loans | Nonperforming
Financing Receivable, Modifications
Year One		1		1		0
Year Two		1		1		0
Year Three		0		0		0
Year Four		0		0		0
Year Five		0		0		0
Prior		1		1		0
Revolving Loans		0		0		1
Revolving Loans Converted to Term Loans		0		0		0
Total		3		3		1
Residential Mortgage and Consumer
Financing Receivable, Modifications
Year One		9,541		9,541		15,344
Year Two		12,613		12,613		8,094
Year Three		6,397		6,397		3,845
Year Four		2,723		2,723		1,542
Year Five		1,028		1,028		1,475
Prior		5,183		5,183		4,728
Revolving Loans		6,571		6,571		6,586
Revolving Loans Converted to Term Loans		40		40		14
Total		44,096		44,096		41,628
Residential Mortgage and Consumer | Performing
Financing Receivable, Modifications
Year One		9,540		9,540		15,344
Year Two		12,609		12,609		8,082
Year Three		6,388		6,388		3,839
Year Four		2,716		2,716		1,537
Year Five		1,019		1,019		1,470
Prior		5,074		5,074		4,687
Revolving Loans		6,489		6,489		6,495
Revolving Loans Converted to Term Loans		39		39		13
Total		43,874		43,874		41,467
Residential Mortgage and Consumer | Performing | Current
Financing Receivable, Modifications
Year One		9,515		9,515		15,312
Year Two		12,567		12,567		8,051
Year Three		6,358		6,358		3,803
Year Four		2,692		2,692		1,512
Year Five		1,004		1,004		1,450
Prior		5,046		5,046		4,615
Revolving Loans		6,432		6,432		6,438
Revolving Loans Converted to Term Loans		39		39		12
Total		43,653		43,653		41,193
Residential Mortgage and Consumer | Performing | 30-89 days past due
Financing Receivable, Modifications
Year One		24		24		30
Year Two		38		38		27
Year Three		28		28		29
Year Four		22		22		20
Year Five		13		13		10
Prior		21		21		19
Revolving Loans		42		42		42
Revolving Loans Converted to Term Loans		0		0		1
Total		188		188		178
Residential Mortgage and Consumer | Performing | 90 days or more past due
Financing Receivable, Modifications
Year One		1		1		2
Year Two		4		4		4
Year Three		2		2		7
Year Four		2		2		5
Year Five		2		2		10
Prior		7		7		53
Revolving Loans		15		15		15
Revolving Loans Converted to Term Loans		0		0		0
Total		33		33		96
Residential Mortgage and Consumer | Nonperforming
Financing Receivable, Modifications
Year One		1		1		0
Year Two		4		4		12
Year Three		9		9		6
Year Four		7		7		5
Year Five		9		9		5
Prior		109		109		41
Revolving Loans		82		82		91
Revolving Loans Converted to Term Loans		1		1		1
Total		$ 222		$ 222		$ 161

[1] Includes $125 and $154 of residential mortgage loans measured at fair value at September 30, 2022 and December 31, 2021, respectively.

[2] Includes $19 and $24 of other short-term investments, $223 and $322 of portfolio loans and leases, $(3) and $(2) of ALLL, $2 and $2 of other assets, $9 and $1 of other liabilities, and $156 and $263 of long-term debt from consolidated VIEs that are included in their respective captions above at September 30, 2022 and December 31, 2021, respectively. For further information, refer to Note 12.