Offsetting Assets and Liabilities - Liabilities (Details) - USD ($) $ in Millions	Jun. 30, 2022	Dec. 31, 2021
Derivatives:
Gross Amounts of Recognized Liabilities	$ 3,207	$ 4,223
Gross Amounts Offset in the Consolidated Balance Sheets	0	0
Amounts of Liabilities Presented in the Consolidated Balance Sheets	3,207	4,223
Gross Amounts Not Offset in the Consolidated Balance Sheets
Financial Instruments	(2,643)	(3,745)
Cash Collateral	(136)	(183)
Securities Collateral	(410)	(292)
Net Amount	18	3
Securities loaned
Gross Amounts of Recognized Liabilities	308	207
Gross Amounts Offset in the Consolidated Balance Sheets	0	0
Amounts of Liabilities Presented in the Consolidated Balance Sheets	308	207
Gross Amounts Not Offset in the Consolidated Balance Sheets
Financial Instruments	(33)	(41)
Cash Collateral	0	0
Securities Collateral	(265)	(160)
Net Amount	10	6
Total
Gross Amounts of Recognized Liabilities	3,515	4,430
Gross Amounts Offset in the Consolidated Balance Sheets	0	0
Amounts of Liabilities Presented in the Consolidated Balance Sheets	3,515	4,430
Gross Amounts Not Offset in the Consolidated Balance Sheets
Financial Instruments	(2,676)	(3,786)
Cash Collateral	(136)	(183)
Securities Collateral	(675)	(452)
Net Amount	28	9
OTC
Derivatives:
Gross Amounts of Recognized Liabilities	2,876	4,091
Gross Amounts Offset in the Consolidated Balance Sheets	0	0
Amounts of Liabilities Presented in the Consolidated Balance Sheets	2,876	4,091
Gross Amounts Not Offset in the Consolidated Balance Sheets
Financial Instruments	(2,336)	(3,613)
Cash Collateral	(114)	(183)
Securities Collateral	(410)	(292)
Net Amount	16	3
OTC cleared
Derivatives:
Gross Amounts of Recognized Liabilities	207	41
Gross Amounts Offset in the Consolidated Balance Sheets	0	0
Amounts of Liabilities Presented in the Consolidated Balance Sheets	207	41
Gross Amounts Not Offset in the Consolidated Balance Sheets
Financial Instruments	(207)	(41)
Cash Collateral	0	0
Securities Collateral	0	0
Net Amount	0	0
Exchange-traded
Derivatives:
Gross Amounts of Recognized Liabilities	124	91
Gross Amounts Offset in the Consolidated Balance Sheets	0	0
Amounts of Liabilities Presented in the Consolidated Balance Sheets	124	91
Gross Amounts Not Offset in the Consolidated Balance Sheets
Financial Instruments	(100)	(91)
Cash Collateral	(22)	0
Securities Collateral	0	0
Net Amount	$ 2	$ 0