Offsetting Assets and Liabilities - Assets (Details) - USD ($) $ in Millions	Mar. 31, 2023	Dec. 31, 2022
Derivatives:
Gross Amounts of Recognized Assets	$ 3,634	$ 3,020
Gross Amounts Offset in the Consolidated Balance Sheets	0	0
Amounts of Assets Presented in the Consolidated Balance Sheets	3,634	3,020
Gross Amounts Not Offset in the Consolidated Balance Sheets
Financial Instruments	(2,852)	(2,406)
Cash Collateral	(608)	(568)
Securities Collateral	(77)	(5)
Net Amount	97	41
Securities borrowed
Gross Amounts of Recognized Assets	162	199
Gross Amounts Offset in the Consolidated Balance Sheets	0	0
Amounts of Assets Presented in the Consolidated Balance Sheets	162	199
Gross Amounts Not Offset in the Consolidated Balance Sheets
Financial Instruments	(65)	(31)
Cash Collateral	0	0
Securities Collateral	(97)	(164)
Net Amount	0	4
Total
Gross Amounts of Recognized Assets	3,796	3,219
Gross Amounts Offset in the Consolidated Balance Sheets	0	0
Amounts of Assets Presented in the Consolidated Balance Sheets	3,796	3,219
Gross Amounts Not Offset in the Consolidated Balance Sheets
Financial Instruments	(2,917)	(2,437)
Cash Collateral	(608)	(568)
Securities Collateral	(174)	(169)
Net Amount	97	45
OTC
Derivatives:
Gross Amounts of Recognized Assets	3,436	2,900
Gross Amounts Offset in the Consolidated Balance Sheets	0	0
Amounts of Assets Presented in the Consolidated Balance Sheets	3,436	2,900
Gross Amounts Not Offset in the Consolidated Balance Sheets
Financial Instruments	(2,715)	(2,322)
Cash Collateral	(608)	(568)
Securities Collateral	(77)	(5)
Net Amount	36	5
OTC cleared
Derivatives:
Gross Amounts of Recognized Assets	105	23
Gross Amounts Offset in the Consolidated Balance Sheets	0	0
Amounts of Assets Presented in the Consolidated Balance Sheets	105	23
Gross Amounts Not Offset in the Consolidated Balance Sheets
Financial Instruments	(47)	(9)
Cash Collateral	0	0
Securities Collateral	0	0
Net Amount	58	14
Exchange-traded
Derivatives:
Gross Amounts of Recognized Assets	93	97
Gross Amounts Offset in the Consolidated Balance Sheets	0	0
Amounts of Assets Presented in the Consolidated Balance Sheets	93	97
Gross Amounts Not Offset in the Consolidated Balance Sheets
Financial Instruments	(90)	(75)
Cash Collateral	0	0
Securities Collateral	0	0
Net Amount	$ 3	$ 22