Segment Reporting (Segment Reporting Table) (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Segment Reporting Information [Line Items]
Net interest income	$ 3,475	$ 2,856	$ 9,330	$ 7,785
Noninterest income	2,074	2,341	6,027	6,299
Total revenue	5,549	5,197	15,357	14,084
Provision for (recapture of) credit losses	241	(203)	69	(452)
Depreciation and amortization	277	277	843	767
Other noninterest expense	3,003	3,310	8,853	8,444
Income (loss) before income taxes (benefit) and noncontrolling interests	2,028	1,813	5,592	5,325
Income taxes (benefit)	388	323	1,027	906
Net income	1,640	1,490	4,565	4,419
Less: Net income (loss) attributable to noncontrolling interests	16	16	52	38
Net income excluding noncontrolling interests	1,624	1,474	4,513	4,381
Average Assets	547,097	559,242	548,443	510,964
Retail Banking
Segment Reporting Information [Line Items]
Noninterest income	725	662	2,218	2,022
Retail Banking | Operating Segments
Segment Reporting Information [Line Items]
Net interest income	2,017	1,713	5,210	4,572
Noninterest income	725	662	2,218	2,022
Total revenue	2,742	2,375	7,428	6,594
Provision for (recapture of) credit losses	92	(113)	66	(156)
Depreciation and amortization	76	78	233	214
Other noninterest expense	1,825	1,811	5,473	4,828
Income (loss) before income taxes (benefit) and noncontrolling interests	749	599	1,656	1,708
Income taxes (benefit)	175	140	389	396
Net income	574	459	1,267	1,312
Less: Net income (loss) attributable to noncontrolling interests	14	12	45	26
Net income excluding noncontrolling interests	560	447	1,222	1,286
Average Assets	114,619	117,394	113,157	103,820
Corporate & Institutional Banking
Segment Reporting Information [Line Items]
Noninterest income	887	1,056	2,659	2,730
Corporate & Institutional Banking | Operating Segments
Segment Reporting Information [Line Items]
Net interest income	1,345	1,241	3,720	3,315
Noninterest income	887	1,056	2,659	2,730
Total revenue	2,232	2,297	6,379	6,045
Provision for (recapture of) credit losses	150	(99)	15	(277)
Depreciation and amortization	50	54	153	152
Other noninterest expense	840	926	2,508	2,352
Income (loss) before income taxes (benefit) and noncontrolling interests	1,192	1,416	3,703	3,818
Income taxes (benefit)	258	290	803	818
Net income	934	1,126	2,900	3,000
Less: Net income (loss) attributable to noncontrolling interests	5	3	12	10
Net income excluding noncontrolling interests	929	1,123	2,888	2,990
Average Assets	224,984	202,268	215,163	184,964
Asset Management Group
Segment Reporting Information [Line Items]
Noninterest income	231	256	713	729
Asset Management Group | Operating Segments
Segment Reporting Information [Line Items]
Net interest income	165	141	456	346
Noninterest income	231	256	713	729
Total revenue	396	397	1,169	1,075
Provision for (recapture of) credit losses	4	(6)	11	8
Depreciation and amortization	6	7	20	16
Other noninterest expense	268	248	775	660
Income (loss) before income taxes (benefit) and noncontrolling interests	118	148	363	391
Income taxes (benefit)	28	34	85	91
Net income	90	114	278	300
Net income excluding noncontrolling interests	90	114	278	300
Average Assets	14,820	13,805	14,360	11,124
Other
Segment Reporting Information [Line Items]
Net interest income	(52)	(239)	(56)	(448)
Noninterest income	231	367	437	818
Total revenue	179	128	381	370
Provision for (recapture of) credit losses	(5)	15	(23)	(27)
Depreciation and amortization	145	138	437	385
Other noninterest expense	70	325	97	604
Income (loss) before income taxes (benefit) and noncontrolling interests	(31)	(350)	(130)	(592)
Income taxes (benefit)	(73)	(141)	(250)	(399)
Net income	42	(209)	120	(193)
Less: Net income (loss) attributable to noncontrolling interests	(3)	1	(5)	2
Net income excluding noncontrolling interests	45	(210)	125	(195)
Average Assets	$ 192,674	$ 225,775	$ 205,763	$ 211,056