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		6 Months Ended
		Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021	Dec. 31, 2021
Financing Receivable, Modifications
Total	[1],[2]	$ 118,823		$ 118,823		$ 112,050
Residential Mortgage
Financing Receivable, Modifications
Residential mortgage loans		133	$ 151	133	$ 151	154
Residential Mortgage | Federal Housing Administration Loan
Financing Receivable, Modifications
Losses due to claim denials and curtailments		1	$ 0	1	$ 1
Residential Mortgage | 30-89 days past due | Federal Housing Administration Loan
Financing Receivable, Modifications
Total		71		71		49
Residential Mortgage | 90 days or more past due | Federal Housing Administration Loan
Financing Receivable, Modifications
Total		150		150		139
Residential Mortgage | Residential mortgage loans
Financing Receivable, Modifications
Year One		2,264		2,264		5,887
Year Two		5,649		5,649		3,312
Year Three		3,138		3,138		1,300
Year Four		1,128		1,128		422
Year Five		387		387		966
Prior		4,867		4,867		4,356
Revolving Loans		0		0		0
Revolving Loans Converted to Term Loans		0		0		0
Total		17,433		17,433		16,243
Residential Mortgage | Residential mortgage loans | Performing
Financing Receivable, Modifications
Year One		2,264		2,264		5,887
Year Two		5,648		5,648		3,312
Year Three		3,135		3,135		1,299
Year Four		1,125		1,125		422
Year Five		382		382		964
Prior		4,776		4,776		4,326
Revolving Loans		0		0		0
Revolving Loans Converted to Term Loans		0		0		0
Total		17,330		17,330		16,210
Residential Mortgage | Residential mortgage loans | Performing | Current
Financing Receivable, Modifications
Year One		2,264		2,264		5,886
Year Two		5,648		5,648		3,309
Year Three		3,134		3,134		1,294
Year Four		1,123		1,123		418
Year Five		380		380		954
Prior		4,757		4,757		4,261
Revolving Loans		0		0		0
Revolving Loans Converted to Term Loans		0		0		0
Total		17,306		17,306		16,122
Residential Mortgage | Residential mortgage loans | Performing | 30-89 days past due
Financing Receivable, Modifications
Year One		0		0		1
Year Two		0		0		1
Year Three		1		1		1
Year Four		1		1		1
Year Five		2		2		1
Prior		12		12		13
Revolving Loans		0		0		0
Revolving Loans Converted to Term Loans		0		0		0
Total		16		16		18
Residential Mortgage | Residential mortgage loans | Performing | 90 days or more past due
Financing Receivable, Modifications
Year One		0		0		0
Year Two		0		0		2
Year Three		0		0		4
Year Four		1		1		3
Year Five		0		0		9
Prior		7		7		52
Revolving Loans		0		0		0
Revolving Loans Converted to Term Loans		0		0		0
Total		8		8		70
Residential Mortgage | Residential mortgage loans | Nonperforming
Financing Receivable, Modifications
Year One		0		0		0
Year Two		1		1		0
Year Three		3		3		1
Year Four		3		3		0
Year Five		5		5		2
Prior		91		91		30
Revolving Loans		0		0		0
Revolving Loans Converted to Term Loans		0		0		0
Total		103		103		33
Consumer | Home equity
Financing Receivable, Modifications
Year One		4		4		2
Year Two		2		2		6
Year Three		5		5		13
Year Four		10		10		18
Year Five		14		14		2
Prior		110		110		126
Revolving Loans		3,746		3,746		3,904
Revolving Loans Converted to Term Loans		15		15		13
Total		3,906		3,906		4,084
Consumer | Home equity | Performing
Financing Receivable, Modifications
Year One		4		4		2
Year Two		2		2		6
Year Three		5		5		13
Year Four		10		10		18
Year Five		14		14		2
Prior		102		102		117
Revolving Loans		3,683		3,683		3,837
Revolving Loans Converted to Term Loans		14		14		12
Total		3,834		3,834		4,007
Consumer | Home equity | Performing | Current
Financing Receivable, Modifications
Year One		4		4		2
Year Two		2		2		6
Year Three		5		5		13
Year Four		10		10		18
Year Five		14		14		2
Prior		98		98		113
Revolving Loans		3,663		3,663		3,815
Revolving Loans Converted to Term Loans		14		14		12
Total		3,810		3,810		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		2		2		1
Revolving Loans		0		0		0
Revolving Loans Converted to Term Loans		0		0		0
Total		2		2		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		63		63		67
Revolving Loans Converted to Term Loans		1		1		1
Total		72		72		77
Consumer | Indirect secured consumer loans
Financing Receivable, Modifications
Year One		3,879		3,879		8,760
Year Two		7,127		7,127		4,244
Year Three		3,325		3,325		2,253
Year Four		1,666		1,666		926
Year Five		633		633		401
Prior		387		387		199
Revolving Loans		0		0		0
Revolving Loans Converted to Term Loans		0		0		0
Total		17,017		17,017		16,783
Consumer | Indirect secured consumer loans | Performing
Financing Receivable, Modifications
Year One		3,879		3,879		8,760
Year Two		7,126		7,126		4,232
Year Three		3,318		3,318		2,248
Year Four		1,662		1,662		921
Year Five		630		630		398
Prior		384		384		197
Revolving Loans		0		0		0
Revolving Loans Converted to Term Loans		0		0		0
Total		16,999		16,999		16,756
Consumer | Indirect secured consumer loans | Performing | Current
Financing Receivable, Modifications
Year One		3,868		3,868		8,732
Year Two		7,092		7,092		4,206
Year Three		3,295		3,295		2,221
Year Four		1,641		1,641		902
Year Five		617		617		389
Prior		377		377		194
Revolving Loans		0		0		0
Revolving Loans Converted to Term Loans		0		0		0
Total		16,890		16,890		16,644
Consumer | Indirect secured consumer loans | Performing | 30-89 days past due
Financing Receivable, Modifications
Year One		10		10		26
Year Two		32		32		24
Year Three		21		21		25
Year Four		20		20		17
Year Five		12		12		8
Prior		6		6		3
Revolving Loans		0		0		0
Revolving Loans Converted to Term Loans		0		0		0
Total		101		101		103
Consumer | Indirect secured consumer loans | Performing | 90 days or more past due
Financing Receivable, Modifications
Year One		1		1		2
Year Two		2		2		2
Year Three		2		2		2
Year Four		1		1		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		8		8		9
Consumer | Indirect secured consumer loans | Nonperforming
Financing Receivable, Modifications
Year One		0		0		0
Year Two		1		1		12
Year Three		7		7		5
Year Four		4		4		5
Year Five		3		3		3
Prior		3		3		2
Revolving Loans		0		0		0
Revolving Loans Converted to Term Loans		0		0		0
Total		18		18		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		1,763		1,763		1,766
Revolving Loans Converted to Term Loans		0		0		0
Total		1,763		1,763		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		1,740		1,740		1,743
Revolving Loans Converted to Term Loans		0		0		0
Total		1,740		1,740		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		1,710		1,710		1,710
Revolving Loans Converted to Term Loans		0		0		0
Total		1,710		1,710		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		17		17		18
Revolving Loans Converted to Term Loans		0		0		0
Total		17		17		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		13		13		15
Revolving Loans Converted to Term Loans		0		0		0
Total		13		13		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		848		848		695
Year Two		695		695		532
Year Three		437		437		279
Year Four		221		221		176
Year Five		144		144		106
Prior		177		177		47
Revolving Loans		979		979		916
Revolving Loans Converted to Term Loans		20		20		1
Total		3,521		3,521		2,752
Consumer | Other consumer loans | Performing
Financing Receivable, Modifications
Year One		848		848		695
Year Two		695		695		532
Year Three		437		437		279
Year Four		221		221		176
Year Five		144		144		106
Prior		176		176		47
Revolving Loans		978		978		915
Revolving Loans Converted to Term Loans		20		20		1
Total		3,519		3,519		2,751
Consumer | Other consumer loans | Performing | Current
Financing Receivable, Modifications
Year One		847		847		692
Year Two		691		691		530
Year Three		435		435		275
Year Four		218		218		174
Year Five		142		142		105
Prior		174		174		47
Revolving Loans		974		974		913
Revolving Loans Converted to Term Loans		19		19		0
Total		3,500		3,500		2,736
Consumer | Other consumer loans | Performing | 30-89 days past due
Financing Receivable, Modifications
Year One		1		1		3
Year Two		4		4		2
Year Three		2		2		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		1		1		1
Total		18		18		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		1		1		0
Year Five		0		0		0
Prior		0		0		0
Revolving Loans		0		0		0
Revolving Loans Converted to Term Loans		0		0		0
Total		1		1		1
Consumer | Other consumer loans | 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		1		1		0
Revolving Loans		1		1		1
Revolving Loans Converted to Term Loans		0		0		0
Total		2		2		1
Residential Mortgage and Consumer
Financing Receivable, Modifications
Year One		6,995		6,995		15,344
Year Two		13,473		13,473		8,094
Year Three		6,905		6,905		3,845
Year Four		3,025		3,025		1,542
Year Five		1,178		1,178		1,475
Prior		5,541		5,541		4,728
Revolving Loans		6,488		6,488		6,586
Revolving Loans Converted to Term Loans		35		35		14
Total		43,640		43,640		41,628
Residential Mortgage and Consumer | Performing
Financing Receivable, Modifications
Year One		6,995		6,995		15,344
Year Two		13,471		13,471		8,082
Year Three		6,895		6,895		3,839
Year Four		3,018		3,018		1,537
Year Five		1,170		1,170		1,470
Prior		5,438		5,438		4,687
Revolving Loans		6,401		6,401		6,495
Revolving Loans Converted to Term Loans		34		34		13
Total		43,422		43,422		41,467
Residential Mortgage and Consumer | Performing | Current
Financing Receivable, Modifications
Year One		6,983		6,983		15,312
Year Two		13,433		13,433		8,051
Year Three		6,869		6,869		3,803
Year Four		2,992		2,992		1,512
Year Five		1,153		1,153		1,450
Prior		5,406		5,406		4,615
Revolving Loans		6,347		6,347		6,438
Revolving Loans Converted to Term Loans		33		33		12
Total		43,216		43,216		41,193
Residential Mortgage and Consumer | Performing | 30-89 days past due
Financing Receivable, Modifications
Year One		11		11		30
Year Two		36		36		27
Year Three		24		24		29
Year Four		23		23		20
Year Five		16		16		10
Prior		22		22		19
Revolving Loans		41		41		42
Revolving Loans Converted to Term Loans		1		1		1
Total		174		174		178
Residential Mortgage and Consumer | Performing | 90 days or more past due
Financing Receivable, Modifications
Year One		1		1		2
Year Two		2		2		4
Year Three		2		2		7
Year Four		3		3		5
Year Five		1		1		10
Prior		10		10		53
Revolving Loans		13		13		15
Revolving Loans Converted to Term Loans		0		0		0
Total		32		32		96
Residential Mortgage and Consumer | Nonperforming
Financing Receivable, Modifications
Year One		0		0		0
Year Two		2		2		12
Year Three		10		10		6
Year Four		7		7		5
Year Five		8		8		5
Prior		103		103		41
Revolving Loans		87		87		91
Revolving Loans Converted to Term Loans		1		1		1
Total		$ 218		$ 218		$ 161

[1] Includes $133 and $154 of residential mortgage loans measured at fair value at June 30, 2022 and December 31, 2021, respectively.

[2] Includes $21 and $24 of other short-term investments, $267 and $322 of portfolio loans and leases, $(3) and $(2) of ALLL, $2 and $2 of other assets, $10 and $1 of other liabilities, and $200 and $263 of long-term debt from consolidated VIEs that are included in their respective captions above at June 30, 2022 and December 31, 2021, respectively. For further information, refer to Note 12.