Leases Other supplemental information (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2022		Dec. 31, 2021	Dec. 31, 2020
Leases [Abstract]
Operating cash flows from operating leases	$ 332		$ 307	$ 299
Operating cash flows from finance leases	38		38	32
Financing cash flows from finance leases	26		24	21
Right-of-Use Assets Obtained in Exchange for Operating Lease Liability	249	[1]	433	447
Right-of-Use Asset Obtained in Exchange for Finance Lease Liability	$ 62		$ 6	$ 39
Operating Lease, Weighted Average Remaining Lease Term	9 years 6 months		9 years 9 months 18 days	8 years 7 months 6 days
Operating Lease, Weighted Average Discount Rate, Percent	5.20%		4.90%	4.10%
Finance Lease, Weighted Average Remaining Lease Term	5 years 10 months 24 days		6 years 3 months 18 days	6 years 4 months 24 days

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