Derivative Financial Instruments - Balance Sheet Offsetting, Assets (Details) - USD ($) $ in Millions	Sep. 30, 2022	Dec. 31, 2021
Derivative Assets
Gross Amounts of Recognized Assets	$ 597	$ 165
Gross Amounts Offset in the Statement of Financial Position, Financial Instruments	(229)	(87)
Gross Amounts Offset in the Statement of Financial Position, Cash Collateral Received	(266)	(50)
Net Amounts of Assets Presented in the Statement of Financial Position	102	28
Net Amount	102	28
Reverse repurchase, securities borrowing, and similar arrangements
Gross Amounts of Recognized Assets	397	607
Gross Amounts Offset in the Statement of Financial Position, Financial Instruments	0	0
Net Amounts of Assets Presented in the Statement of Financial Position	397	607
Gross Amounts Not Offset in the Statement of Financial Position	(397)	(607)
Net Amount	0	0
Total
Gross Amounts of Recognized Assets	994	772
Gross Amounts Offset in the Statement of Financial Position, Financial Instruments	(229)	(87)
Net Amounts of Assets Presented in the Statement of Financial Position	499	635
Cash Collateral Received	(397)	(607)
Net Amount	$ 102	$ 28