Employee Benefit Plans - Schedule of Amount Recognized in Balance Sheet (Details) - USD ($) $ in Millions	Dec. 31, 2021	Dec. 31, 2020
Pension Benefits
Amounts Recorded in Consolidated Balance Sheets [Abstract]
Long-term Assets	$ 255	$ 29
Current Liabilities	(17)	(16)
Long-term Liabilities	(244)	(270)
Net Amount Recognized in Consolidated Balance Sheets	(6)	(257)
Post-retirement Benefits
Amounts Recorded in Consolidated Balance Sheets [Abstract]
Long-term Assets	0	0
Current Liabilities	(12)	(17)
Long-term Liabilities	(69)	(79)
Net Amount Recognized in Consolidated Balance Sheets	$ (81)	$ (96)