Lease Commitments Lease Commitments - Costs (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Leases [Abstract]
Operating Lease, Expense	$ 463	$ 444	$ 463
Variable Lease, Cost	62	49	57
Sublease Income	(15)	(16)	(14)
Finance Lease, Right-of-Use Asset, Amortization	60	34	27
Finance Lease, Interest Expense	22	14	15
Lease, Cost	$ 592	$ 525	$ 548