Benefit Plans - Amounts Recognized in the Consolidated Balance Sheets (Details) - USD ($) $ in Millions	Dec. 31, 2022	Dec. 31, 2021
Pension Benefits
Amounts recognized in the Consolidated Balance Sheets consist of [Abstract]
Other assets	$ 149	$ 90
Other liabilities	(157)	(190)
Net amount recognized	(8)	(100)
Other Postretirement Benefits
Amounts recognized in the Consolidated Balance Sheets consist of [Abstract]
Other assets	57	62
Other liabilities	(9)	(13)
Net amount recognized	$ 48	$ 49