Credit Quality and the Allowance for Loan and Lease Losses - Summary of the Credit Risk Profile of the Bancorp's Commercial Portfolio Segment by Class (Details) - USD ($) $ in Millions		Dec. 31, 2023	Dec. 31, 2022
Financing Receivable, Modifications
Total	[1],[2]	$ 117,234	$ 121,480
Commercial
Financing Receivable, Modifications
Year One		5,105	7,198
Year Two		6,197	5,338
Year Three		3,499	2,734
Year Four		1,650	1,455
Year Five		1,099	900
Prior		1,730	1,876
Revolving Loans		53,466	56,888
Revolving Loans Converted to Term Loans		0	0
Total		72,746	76,389
Commercial | Pass
Financing Receivable, Modifications
Year One		4,649	6,795
Year Two		5,759	5,081
Year Three		3,328	2,405
Year Four		1,579	1,299
Year Five		990	830
Prior		1,494	1,625
Revolving Loans		49,710	53,282
Revolving Loans Converted to Term Loans		0	0
Total		67,509	71,317
Commercial | Special mention
Financing Receivable, Modifications
Year One		158	83
Year Two		298	127
Year Three		90	56
Year Four		38	52
Year Five		20	30
Prior		121	68
Revolving Loans		2,056	1,658
Revolving Loans Converted to Term Loans		0	0
Total		2,781	2,074
Commercial | Substandard
Financing Receivable, Modifications
Year One		298	320
Year Two		140	130
Year Three		81	273
Year Four		33	104
Year Five		89	40
Prior		115	183
Revolving Loans		1,694	1,948
Revolving Loans Converted to Term Loans		0	0
Total		2,450	2,998
Commercial | Doubtful
Financing Receivable, Modifications
Year One		0	0
Year Two		0	0
Year Three		0	0
Year Four		0	0
Year Five		0	0
Prior		0	0
Revolving Loans		6	0
Revolving Loans Converted to Term Loans		0	0
Total		6	0
Commercial | Commercial and industrial loans
Financing Receivable, Modifications
Year One		2,245	4,040
Year Two		3,637	3,199
Year Three		1,902	1,242
Year Four		631	507
Year Five		308	286
Prior		499	619
Revolving Loans		44,048	47,339
Revolving Loans Converted to Term Loans		0	0
Total		53,270	57,232
Commercial | Commercial and industrial loans | Pass
Financing Receivable, Modifications
Year One		2,124	3,825
Year Two		3,434	3,098
Year Three		1,814	994
Year Four		580	445
Year Five		263	269
Prior		321	488
Revolving Loans		40,889	44,521
Revolving Loans Converted to Term Loans		0	0
Total		49,425	53,640
Commercial | Commercial and industrial loans | Special mention
Financing Receivable, Modifications
Year One		16	65
Year Two		100	24
Year Three		60	15
Year Four		33	36
Year Five		6	10
Prior		105	24
Revolving Loans		1,756	1,221
Revolving Loans Converted to Term Loans		0	0
Total		2,076	1,395
Commercial | Commercial and industrial loans | Substandard
Financing Receivable, Modifications
Year One		105	150
Year Two		103	77
Year Three		28	233
Year Four		18	26
Year Five		39	7
Prior		73	107
Revolving Loans		1,397	1,597
Revolving Loans Converted to Term Loans		0	0
Total		1,763	2,197
Commercial | Commercial and industrial loans | Doubtful
Financing Receivable, Modifications
Year One		0	0
Year Two		0	0
Year Three		0	0
Year Four		0	0
Year Five		0	0
Prior		0	0
Revolving Loans		6	0
Revolving Loans Converted to Term Loans		0	0
Total		6	0
Commercial | Commercial mortgage owner-occupied loans
Financing Receivable, Modifications
Year One		931	1,245
Year Two		1,123	855
Year Three		775	555
Year Four		418	342
Year Five		270	184
Prior		270	291
Revolving Loans		1,413	1,786
Revolving Loans Converted to Term Loans		0	0
Total		5,200	5,258
Commercial | Commercial mortgage owner-occupied loans | Pass
Financing Receivable, Modifications
Year One		870	1,177
Year Two		1,078	826
Year Three		746	522
Year Four		408	257
Year Five		219	160
Prior		260	264
Revolving Loans		1,279	1,624
Revolving Loans Converted to Term Loans		0	0
Total		4,860	4,830
Commercial | Commercial mortgage owner-occupied loans | Special mention
Financing Receivable, Modifications
Year One		30	17
Year Two		23	15
Year Three		18	13
Year Four		0	12
Year Five		6	13
Prior		0	2
Revolving Loans		20	56
Revolving Loans Converted to Term Loans		0	0
Total		97	128
Commercial | Commercial mortgage owner-occupied loans | Substandard
Financing Receivable, Modifications
Year One		31	51
Year Two		22	14
Year Three		11	20
Year Four		10	73
Year Five		45	11
Prior		10	25
Revolving Loans		114	106
Revolving Loans Converted to Term Loans		0	0
Total		243	300
Commercial | Commercial mortgage owner-occupied loans | Doubtful
Financing Receivable, Modifications
Year One		0	0
Year Two		0	0
Year Three		0	0
Year Four		0	0
Year Five		0	0
Prior		0	0
Revolving Loans		0	0
Revolving Loans Converted to Term Loans		0	0
Total		0	0
Commercial | Commercial mortgage nonowner-occupied loans
Financing Receivable, Modifications
Year One		1,078	1,193
Year Two		992	565
Year Three		269	534
Year Four		350	398
Year Five		293	221
Prior		247	210
Revolving Loans		2,847	2,641
Revolving Loans Converted to Term Loans		0	0
Total		6,076	5,762
Commercial | Commercial mortgage nonowner-occupied loans | Pass
Financing Receivable, Modifications
Year One		886	1,127
Year Two		825	462
Year Three		261	490
Year Four		348	397
Year Five		293	220
Prior		243	170
Revolving Loans		2,724	2,453
Revolving Loans Converted to Term Loans		0	0
Total		5,580	5,319
Commercial | Commercial mortgage nonowner-occupied loans | Special mention
Financing Receivable, Modifications
Year One		111	1
Year Two		166	84
Year Three		0	26
Year Four		2	0
Year Five		0	0
Prior		2	23
Revolving Loans		81	88
Revolving Loans Converted to Term Loans		0	0
Total		362	222
Commercial | Commercial mortgage nonowner-occupied loans | Substandard
Financing Receivable, Modifications
Year One		81	65
Year Two		1	19
Year Three		8	18
Year Four		0	1
Year Five		0	1
Prior		2	17
Revolving Loans		42	100
Revolving Loans Converted to Term Loans		0	0
Total		134	221
Commercial | Commercial mortgage nonowner-occupied loans | Doubtful
Financing Receivable, Modifications
Year One		0	0
Year Two		0	0
Year Three		0	0
Year Four		0	0
Year Five		0	0
Prior		0	0
Revolving Loans		0	0
Revolving Loans Converted to Term Loans		0	0
Total		0	0
Commercial | Commercial construction loans
Financing Receivable, Modifications
Year One		232	135
Year Two		36	31
Year Three		78	93
Year Four		41	8
Year Five		70	35
Prior		6	9
Revolving Loans		5,158	5,122
Revolving Loans Converted to Term Loans		0	0
Total		5,621	5,433
Commercial | Commercial construction loans | Pass
Financing Receivable, Modifications
Year One		171	82
Year Two		36	31
Year Three		45	93
Year Four		41	8
Year Five		70	35
Prior		6	7
Revolving Loans		4,818	4,684
Revolving Loans Converted to Term Loans		0	0
Total		5,187	4,940
Commercial | Commercial construction loans | Special mention
Financing Receivable, Modifications
Year One		0	0
Year Two		0	0
Year Three		0	0
Year Four		0	0
Year Five		0	0
Prior		0	0
Revolving Loans		199	293
Revolving Loans Converted to Term Loans		0	0
Total		199	293
Commercial | Commercial construction loans | Substandard
Financing Receivable, Modifications
Year One		61	53
Year Two		0	0
Year Three		33	0
Year Four		0	0
Year Five		0	0
Prior		0	2
Revolving Loans		141	145
Revolving Loans Converted to Term Loans		0	0
Total		235	200
Commercial | Commercial construction loans | Doubtful
Financing Receivable, Modifications
Year One		0	0
Year Two		0	0
Year Three		0	0
Year Four		0	0
Year Five		0	0
Prior		0	0
Revolving Loans		0	0
Revolving Loans Converted to Term Loans		0	0
Total		0	0
Commercial | Commercial leases
Financing Receivable, Modifications
Year One		619	585
Year Two		409	688
Year Three		475	310
Year Four		210	200
Year Five		158	174
Prior		708	747
Revolving Loans		0	0
Revolving Loans Converted to Term Loans		0	0
Total		2,579	2,704
Commercial | Commercial leases | Pass
Financing Receivable, Modifications
Year One		598	584
Year Two		386	664
Year Three		462	306
Year Four		202	192
Year Five		145	146
Prior		664	696
Revolving Loans		0	0
Revolving Loans Converted to Term Loans		0	0
Total		2,457	2,588
Commercial | Commercial leases | Special mention
Financing Receivable, Modifications
Year One		1	0
Year Two		9	4
Year Three		12	2
Year Four		3	4
Year Five		8	7
Prior		14	19
Revolving Loans		0	0
Revolving Loans Converted to Term Loans		0	0
Total		47	36
Commercial | Commercial leases | Substandard
Financing Receivable, Modifications
Year One		20	1
Year Two		14	20
Year Three		1	2
Year Four		5	4
Year Five		5	21
Prior		30	32
Revolving Loans		0	0
Revolving Loans Converted to Term Loans		0	0
Total		75	80
Commercial | Commercial leases | Doubtful
Financing Receivable, Modifications
Year One		0	0
Year Two		0	0
Year Three		0	0
Year Four		0	0
Year Five		0	0
Prior		0	0
Revolving Loans		0	0
Revolving Loans Converted to Term Loans		0	0
Total		$ 0	$ 0

[1] Includes $55 and $17 of other short-term investments, $1,573 and $185 of portfolio loans and leases, $(28) and $(2) of ALLL, $10 and $2 of other assets, $14 and $9 of other liabilities and $1,409 and $118 of long-term debt from consolidated VIEs that are included in their respective captions above at December 31, 2023 and 2022, respectively. For further information, refer to Note 12.

[2] Includes $116 and $123 of residential mortgage loans measured at fair value at December 31, 2023 and 2022, respectively.