Borrowings and Other Debt Obligations - Schedule of Long-term Debt (Details) - USD ($) $ in Millions	Jun. 30, 2024	Dec. 31, 2023	Oct. 27, 2021	Sep. 30, 2021
Debt Instrument [Line Items]
Current Portion of Finance Leases	$ 20	$ 17
Current Portion of Long-term Debt	20	168
Finance Leases	40	36
Long-term Debt	1,628	1,715
Senior Notes | Senior Notes 8.625 Percent Due 2030
Debt Instrument [Line Items]
Long-term debt	1,588	1,587
Interest rate			8.625%
Senior Notes | Senior Notes 6.5 Percent Due 2028
Debt Instrument [Line Items]
Long-term Debt, Current Maturities	0	151
Long-term debt	$ 0	$ 92
Interest rate				6.50%