Leases - Cash Flow (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Leases [Abstract]
Operating cash flows for operating leases	$ 122	$ 135	$ 129
Financing cash flows for finance leases	8	7	6
Right-of-Use Asset Obtained in Exchange for Operating Lease Liability	49	174	88
Right-of-Use Asset Obtained in Exchange for Finance Lease Liability	22	7	15
Operating cash flows for finance leases	$ 1	$ 0	$ 0