Leases - Supplemental Cash Flow and Other Information Related to Leases (Details) - USD ($) $ in Millions	9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022
Leases [Abstract]
Cash paid for amounts included in the measurement of lease liabilities: Operating cash flows from operating leases	$ 153	$ 152
Cash paid for amounts included in the measurement of lease liabilities: Operating cash flows from finance leases	10	12
Cash paid for amounts included in the measurement of lease liabilities: Financing cash flows from finance leases	3	9
Right-of-use assets obtained in exchange for new finance lease liabilities		42
Right-of-use assets obtained in exchange for new operating lease liabilities	$ 64	$ 105