Master Netting and Similar Agreements - Repurchase, Reverse Repurchase, and Securities Borrowing Transactions - Securities Sold Under Agreements To Repurchase And Collateral Pledged By Company (Details) - USD ($) $ in Millions	Dec. 31, 2022	Dec. 31, 2021
Securities Sold under Agreements to Repurchase [Abstract]
Gross amounts of recognized liabilities	$ 1,013	$ 1,247
Gross amounts offset in the Balance Sheets	0	0
Net amounts of liabilities presented in the Balance Sheets	1,013	1,247
Offsetting securities purchased under agreements to resell	(10)	(10)
Securities/ government guaranteed loans collateral	(1,003)	(1,237)
Net amount	$ 0	$ 0