Offsetting Assets and Liabilities - Liabilities (Details) - USD ($) $ in Millions	Mar. 31, 2023	Dec. 31, 2022
Derivatives:
Gross Amounts of Recognized Liabilities	$ 3,092	$ 2,748
Gross Amounts Offset in the Consolidated Balance Sheets	0	0
Amounts of Liabilities Presented in the Consolidated Balance Sheets	3,092	2,748
Gross Amounts Not Offset in the Consolidated Balance Sheets
Financial Instruments	(2,852)	(2,406)
Cash Collateral	(54)	(43)
Securities Collateral	(137)	(294)
Net Amount	49	5
Securities loaned
Gross Amounts of Recognized Liabilities	208	235
Gross Amounts Offset in the Consolidated Balance Sheets	0	0
Amounts of Liabilities Presented in the Consolidated Balance Sheets	208	235
Gross Amounts Not Offset in the Consolidated Balance Sheets
Financial Instruments	(65)	(31)
Cash Collateral	0	0
Securities Collateral	(140)	(197)
Net Amount	3	7
Total
Gross Amounts of Recognized Liabilities	3,300	2,983
Gross Amounts Offset in the Consolidated Balance Sheets	0	0
Amounts of Liabilities Presented in the Consolidated Balance Sheets	3,300	2,983
Gross Amounts Not Offset in the Consolidated Balance Sheets
Financial Instruments	(2,917)	(2,437)
Cash Collateral	(54)	(43)
Securities Collateral	(277)	(491)
Net Amount	52	12
OTC
Derivatives:
Gross Amounts of Recognized Liabilities	2,909	2,646
Gross Amounts Offset in the Consolidated Balance Sheets	0	0
Amounts of Liabilities Presented in the Consolidated Balance Sheets	2,909	2,646
Gross Amounts Not Offset in the Consolidated Balance Sheets
Financial Instruments	(2,715)	(2,322)
Cash Collateral	(54)	(43)
Securities Collateral	(133)	(277)
Net Amount	7	4
OTC cleared
Derivatives:
Gross Amounts of Recognized Liabilities	47	9
Gross Amounts Offset in the Consolidated Balance Sheets	0	0
Amounts of Liabilities Presented in the Consolidated Balance Sheets	47	9
Gross Amounts Not Offset in the Consolidated Balance Sheets
Financial Instruments	(47)	(9)
Cash Collateral	0	0
Securities Collateral	0	0
Net Amount	0	0
Exchange-traded
Derivatives:
Gross Amounts of Recognized Liabilities	136	93
Gross Amounts Offset in the Consolidated Balance Sheets	0	0
Amounts of Liabilities Presented in the Consolidated Balance Sheets	136	93
Gross Amounts Not Offset in the Consolidated Balance Sheets
Financial Instruments	(90)	(75)
Cash Collateral	0	0
Securities Collateral	(4)	(17)
Net Amount	$ 42	$ 1