Employee Benefit Plans - Funded Status Recognized on Balance Sheet (Details) - USD ($) $ in Millions	Dec. 31, 2022	Dec. 31, 2021
Defined Pension  Benefits
Defined Benefit Plan Disclosure [Line Items]
Other assets	$ 102	$ 121
Other liabilities	(8)	(11)
Net amount recognized as of December 31,	94	110
Other Postretirement Benefits
Defined Benefit Plan Disclosure [Line Items]
Other assets	0	0
Other liabilities	(7)	(10)
Net amount recognized as of December 31,	$ (7)	$ (10)