Revenue from Contracts with Customers - Disaggregated Revenue (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Revenue disaggregated by segment
Total revenues	$ 3,511	$ 3,420	$ 7,168	$ 6,775
Banking and deposit interest expense	(3)	(2)	(5)	(7)
Total net revenues	3,508	3,418	7,163	6,768
Management and financial advice fees
Revenue disaggregated by segment
Revenue from contracts with customers	2,277	2,251	4,736	4,353
Distribution fees
Revenue disaggregated by segment
Revenue from contracts with customers	458	452	904	910
Advice & Wealth Management
Revenue disaggregated by segment
Total net revenues	1,835	1,714	3,649	3,343
Asset Management
Revenue disaggregated by segment
Total net revenues	870	865	1,875	1,680
Retirement & Protection Solutions
Revenue disaggregated by segment
Total net revenues	655	690	1,315	1,361
Corporate & Other
Revenue disaggregated by segment
Total net revenues	119	118	235	257
Reportable segments
Revenue disaggregated by segment
Revenue from contracts with customers	2,910	2,911	5,993	5,660
Revenue from other sources	909	878	1,775	1,767
Total revenues	3,819	3,789	7,768	7,427
Banking and deposit interest expense	(3)	(3)	(5)	(8)
Total net revenues	3,816	3,786	7,763	7,419
Reportable segments | Management and financial advice fees
Revenue disaggregated by segment
Revenue from contracts with customers	2,125	2,071	4,415	3,998
Reportable segments | Asset Management: Retail
Revenue disaggregated by segment
Revenue from contracts with customers	543	567	1,187	1,098
Reportable segments | Asset Management: Institutional
Revenue disaggregated by segment
Revenue from contracts with customers	173	131	368	254
Reportable segments | Advisory fees
Revenue disaggregated by segment
Revenue from contracts with customers	1,144	1,113	2,335	2,141
Reportable segments | Financial planning fees
Revenue disaggregated by segment
Revenue from contracts with customers	99	93	196	181
Reportable segments | Transaction and other fees
Revenue disaggregated by segment
Revenue from contracts with customers	166	167	329	324
Reportable segments | Distribution fees
Revenue disaggregated by segment
Revenue from contracts with customers	730	781	1,465	1,553
Reportable segments | Mutual funds
Revenue disaggregated by segment
Revenue from contracts with customers	244	281	513	555
Reportable segments | Insurance and annuity
Revenue disaggregated by segment
Revenue from contracts with customers	346	402	708	788
Reportable segments | Other products
Revenue disaggregated by segment
Revenue from contracts with customers	140	98	244	210
Reportable segments | Other revenues
Revenue disaggregated by segment
Revenue from contracts with customers	55	59	113	109
Reportable segments | Advice & Wealth Management
Revenue disaggregated by segment
Revenue from contracts with customers	1,936	1,912	3,898	3,725
Revenue from other sources	123	70	205	141
Total revenues	2,059	1,982	4,103	3,866
Banking and deposit interest expense	(3)	(2)	(5)	(7)
Total net revenues	2,056	1,980	4,098	3,859
Reportable segments | Advice & Wealth Management | Management and financial advice fees
Revenue disaggregated by segment
Revenue from contracts with customers	1,340	1,299	2,720	2,504
Reportable segments | Advice & Wealth Management | Asset Management: Retail
Revenue disaggregated by segment
Revenue from contracts with customers	0	0	0	0
Reportable segments | Advice & Wealth Management | Asset Management: Institutional
Revenue disaggregated by segment
Revenue from contracts with customers	0	0	0	0
Reportable segments | Advice & Wealth Management | Advisory fees
Revenue disaggregated by segment
Revenue from contracts with customers	1,144	1,113	2,335	2,141
Reportable segments | Advice & Wealth Management | Financial planning fees
Revenue disaggregated by segment
Revenue from contracts with customers	99	93	196	181
Reportable segments | Advice & Wealth Management | Transaction and other fees
Revenue disaggregated by segment
Revenue from contracts with customers	97	93	189	182
Reportable segments | Advice & Wealth Management | Distribution fees
Revenue disaggregated by segment
Revenue from contracts with customers	542	562	1,071	1,121
Reportable segments | Advice & Wealth Management | Mutual funds
Revenue disaggregated by segment
Revenue from contracts with customers	186	212	390	419
Reportable segments | Advice & Wealth Management | Insurance and annuity
Revenue disaggregated by segment
Revenue from contracts with customers	216	252	437	492
Reportable segments | Advice & Wealth Management | Other products
Revenue disaggregated by segment
Revenue from contracts with customers	140	98	244	210
Reportable segments | Advice & Wealth Management | Other revenues
Revenue disaggregated by segment
Revenue from contracts with customers	54	51	107	100
Reportable segments | Asset Management
Revenue disaggregated by segment
Revenue from contracts with customers	871	879	1,881	1,700
Revenue from other sources	10	0	17	7
Total revenues	881	879	1,898	1,707
Banking and deposit interest expense	0	0	0	0
Total net revenues	881	879	1,898	1,707
Reportable segments | Asset Management | Management and financial advice fees
Revenue disaggregated by segment
Revenue from contracts with customers	770	754	1,664	1,460
Reportable segments | Asset Management | Asset Management: Retail
Revenue disaggregated by segment
Revenue from contracts with customers	543	567	1,187	1,098
Reportable segments | Asset Management | Asset Management: Institutional
Revenue disaggregated by segment
Revenue from contracts with customers	173	131	368	254
Reportable segments | Asset Management | Advisory fees
Revenue disaggregated by segment
Revenue from contracts with customers	0	0	0	0
Reportable segments | Asset Management | Financial planning fees
Revenue disaggregated by segment
Revenue from contracts with customers	0	0	0	0
Reportable segments | Asset Management | Transaction and other fees
Revenue disaggregated by segment
Revenue from contracts with customers	54	56	109	108
Reportable segments | Asset Management | Distribution fees
Revenue disaggregated by segment
Revenue from contracts with customers	100	118	211	232
Reportable segments | Asset Management | Mutual funds
Revenue disaggregated by segment
Revenue from contracts with customers	58	69	123	136
Reportable segments | Asset Management | Insurance and annuity
Revenue disaggregated by segment
Revenue from contracts with customers	42	49	88	96
Reportable segments | Asset Management | Other products
Revenue disaggregated by segment
Revenue from contracts with customers	0	0	0	0
Reportable segments | Asset Management | Other revenues
Revenue disaggregated by segment
Revenue from contracts with customers	1	7	6	8
Reportable segments | Retirement & Protection Solutions
Revenue disaggregated by segment
Revenue from contracts with customers	103	119	214	234
Revenue from other sources	657	689	1,318	1,361
Total revenues	760	808	1,532	1,595
Banking and deposit interest expense	0	0	0	0
Total net revenues	760	808	1,532	1,595
Reportable segments | Retirement & Protection Solutions | Management and financial advice fees
Revenue disaggregated by segment
Revenue from contracts with customers	15	18	31	34
Reportable segments | Retirement & Protection Solutions | Asset Management: Retail
Revenue disaggregated by segment
Revenue from contracts with customers	0	0	0	0
Reportable segments | Retirement & Protection Solutions | Asset Management: Institutional
Revenue disaggregated by segment
Revenue from contracts with customers	0	0	0	0
Reportable segments | Retirement & Protection Solutions | Advisory fees
Revenue disaggregated by segment
Revenue from contracts with customers	0	0	0	0
Reportable segments | Retirement & Protection Solutions | Financial planning fees
Revenue disaggregated by segment
Revenue from contracts with customers	0	0	0	0
Reportable segments | Retirement & Protection Solutions | Transaction and other fees
Revenue disaggregated by segment
Revenue from contracts with customers	15	18	31	34
Reportable segments | Retirement & Protection Solutions | Distribution fees
Revenue disaggregated by segment
Revenue from contracts with customers	88	101	183	200
Reportable segments | Retirement & Protection Solutions | Mutual funds
Revenue disaggregated by segment
Revenue from contracts with customers	0	0	0	0
Reportable segments | Retirement & Protection Solutions | Insurance and annuity
Revenue disaggregated by segment
Revenue from contracts with customers	88	101	183	200
Reportable segments | Retirement & Protection Solutions | Other products
Revenue disaggregated by segment
Revenue from contracts with customers	0	0	0	0
Reportable segments | Retirement & Protection Solutions | Other revenues
Revenue disaggregated by segment
Revenue from contracts with customers	0	0	0	0
Reportable segments | Corporate & Other
Revenue disaggregated by segment
Revenue from contracts with customers	0	1	0	1
Revenue from other sources	119	119	235	258
Total revenues	119	120	235	259
Banking and deposit interest expense	0	(1)	0	(1)
Total net revenues	119	119	235	258
Reportable segments | Corporate & Other | Management and financial advice fees
Revenue disaggregated by segment
Revenue from contracts with customers	0	0	0	0
Reportable segments | Corporate & Other | Asset Management: Retail
Revenue disaggregated by segment
Revenue from contracts with customers	0	0	0	0
Reportable segments | Corporate & Other | Asset Management: Institutional
Revenue disaggregated by segment
Revenue from contracts with customers	0	0	0	0
Reportable segments | Corporate & Other | Advisory fees
Revenue disaggregated by segment
Revenue from contracts with customers	0	0	0	0
Reportable segments | Corporate & Other | Financial planning fees
Revenue disaggregated by segment
Revenue from contracts with customers	0	0	0	0
Reportable segments | Corporate & Other | Transaction and other fees
Revenue disaggregated by segment
Revenue from contracts with customers	0	0	0	0
Reportable segments | Corporate & Other | Distribution fees
Revenue disaggregated by segment
Revenue from contracts with customers	0	0	0	0
Reportable segments | Corporate & Other | Mutual funds
Revenue disaggregated by segment
Revenue from contracts with customers	0	0	0	0
Reportable segments | Corporate & Other | Insurance and annuity
Revenue disaggregated by segment
Revenue from contracts with customers	0	0	0	0
Reportable segments | Corporate & Other | Other products
Revenue disaggregated by segment
Revenue from contracts with customers	0	0	0	0
Reportable segments | Corporate & Other | Other revenues
Revenue disaggregated by segment
Revenue from contracts with customers	0	1	0	1
Intersegment eliminations
Revenue disaggregated by segment
Total net revenues	(337)	(399)	(689)	(778)
Intersegment eliminations | Advice & Wealth Management
Revenue disaggregated by segment
Total net revenues	(221)	(266)	(449)	(516)
Intersegment eliminations | Asset Management
Revenue disaggregated by segment
Total net revenues	(11)	(14)	(23)	(27)
Intersegment eliminations | Retirement & Protection Solutions
Revenue disaggregated by segment
Total net revenues	(105)	(118)	(217)	(234)
Intersegment eliminations | Corporate & Other
Revenue disaggregated by segment
Total net revenues	0	(1)	0	(1)
Segment reconciling items
Revenue disaggregated by segment
Total net revenues	29	31	89	127
Non-operating
Revenue disaggregated by segment
Revenue from other sources	31	34	94	133
Total revenues	31	34	94	133
Total net revenues	31	34	94	133
Total
Revenue disaggregated by segment
Revenue from other sources	940	912	1,869	1,900
Total revenues	3,850	3,823	7,862	7,560
Banking and deposit interest expense	(3)	(3)	(5)	(8)
Total net revenues	3,847	3,820	7,857	7,552
Eliminations
Revenue disaggregated by segment
Total net revenues	(339)	(402)	(694)	(784)
Total Segments after intersegment eliminations | Reportable segments
Revenue disaggregated by segment
Total net revenues	3,479	3,387	7,074	6,641
Non-operating | Eliminations
Revenue disaggregated by segment
Total net revenues	$ (2)	$ (3)	$ (5)	$ (6)