Derivatives - Derivative Liabilities and Collateral Pledged (Details) - USD ($) $ in Millions	Dec. 31, 2022	Dec. 31, 2021
Derivative [Line Items]
Gross amounts of recognized liabilities	$ 929	$ 103
Gross  amounts offset in the Balance Sheets	0	0
Net amounts of liabilities presented in the Statements of Condition	929	103
Derivative assets available for offset	(64)	(36)
Collateral pledged	(176)	(39)
Net amount	689	28
Derivative liabilities not subject to master netting agreements	$ 29	$ 24
Derivative Liability, Statement of Financial Position [Extensible Enumeration]	Other liabilities	Other liabilities
Derivatives, interest rate contracts
Derivative [Line Items]
Gross amounts of recognized liabilities	$ 921	$ 93
Gross  amounts offset in the Balance Sheets	0	0
Net amounts of liabilities presented in the Statements of Condition	921	93
Derivative assets available for offset	(58)	(32)
Collateral pledged	(175)	(38)
Net amount	688	23
Forward contracts
Derivative [Line Items]
Gross amounts of recognized liabilities	8	10
Gross  amounts offset in the Balance Sheets	0	0
Net amounts of liabilities presented in the Statements of Condition	8	10
Derivative assets available for offset	(6)	(4)
Collateral pledged	(1)	(1)
Net amount	$ 1	$ 5