Segment Reporting (Segment Reporting Table) (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Segment Reporting Information [Line Items]
Net interest income	$ 3,585	$ 2,804
Noninterest income	2,018	1,888
Total revenue	5,603	4,692
Provision for (recapture of) credit losses	235	(208)
Depreciation and amortization	281	277
Other noninterest expense	3,040	2,895
Income (loss) before income taxes (benefit) and noncontrolling interests	2,047	1,728
Income taxes (benefit)	353	299
Net income from continuing operations	1,694	1,429
Less: Net income attributable to noncontrolling interests	17	21
Net income (loss) excluding noncontrolling interests	1,677	1,408
Average Assets	562,332	550,096
Retail Banking
Segment Reporting Information [Line Items]
Noninterest income	743	745
Retail Banking | Operating Segments
Segment Reporting Information [Line Items]
Net interest income	2,281	1,531
Noninterest income	743	745
Total revenue	3,024	2,276
Provision for (recapture of) credit losses	238	(81)
Depreciation and amortization	78	74
Other noninterest expense	1,849	1,818
Income (loss) before income taxes (benefit) and noncontrolling interests	859	465
Income taxes (benefit)	202	109
Net income from continuing operations	657	356
Less: Net income attributable to noncontrolling interests	10	16
Net income (loss) excluding noncontrolling interests	647	340
Average Assets	115,384	111,754
Corporate & Institutional Banking
Segment Reporting Information [Line Items]
Noninterest income	886	804
Corporate & Institutional Banking | Operating Segments
Segment Reporting Information [Line Items]
Net interest income	1,383	1,143
Noninterest income	886	804
Total revenue	2,269	1,947
Provision for (recapture of) credit losses	(28)	(118)
Depreciation and amortization	54	52
Other noninterest expense	885	785
Income (loss) before income taxes (benefit) and noncontrolling interests	1,358	1,228
Income taxes (benefit)	294	268
Net income from continuing operations	1,064	960
Less: Net income attributable to noncontrolling interests	5	4
Net income (loss) excluding noncontrolling interests	1,059	956
Average Assets	234,536	200,724
Asset Management Group
Segment Reporting Information [Line Items]
Noninterest income	230	248
Asset Management Group | Operating Segments
Segment Reporting Information [Line Items]
Net interest income	127	138
Noninterest income	230	248
Total revenue	357	386
Provision for (recapture of) credit losses	9	2
Depreciation and amortization	6	6
Other noninterest expense	274	245
Income (loss) before income taxes (benefit) and noncontrolling interests	68	133
Income taxes (benefit)	16	31
Net income from continuing operations	52	102
Net income (loss) excluding noncontrolling interests	52	102
Average Assets	14,997	13,801
Other
Segment Reporting Information [Line Items]
Net interest income	(206)	(8)
Noninterest income	159	91
Total revenue	(47)	83
Provision for (recapture of) credit losses	16	(11)
Depreciation and amortization	143	145
Other noninterest expense	32	47
Income (loss) before income taxes (benefit) and noncontrolling interests	(238)	(98)
Income taxes (benefit)	(159)	(109)
Net income from continuing operations	(79)	11
Less: Net income attributable to noncontrolling interests	2	1
Net income (loss) excluding noncontrolling interests	(81)	10
Average Assets	$ 197,415	$ 223,817