Leases - Supplemental cash flow information (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Leases [Abstract]
Operating cash flows for operating leases	$ 28	$ 33
Financing cash flows for finance leases	2	2
Right-of-Use Asset Obtained in Exchange for Operating Lease Liability	39	137
Right-of-Use Asset Obtained in Exchange for Finance Lease Liability	$ 3	$ 2