Income Taxes - Deferred Tax Assets and Liabilities (Details) - USD ($) $ in Millions	Dec. 31, 2023	Dec. 31, 2022
Deferred income tax assets:
Lease and rents	$ 5,059	$ 5,242
Legal charges	1,205	1,260
Inventory	94	103
Employee benefits	168	153
Bad debts and other allowances	606	480
Net operating loss and capital loss carryforwards	409	266
Deferred income	62	66
Insurance reserves	356	319
Investments	56	293
Other	372	335
Valuation allowance	(385)	(532)
Total deferred income tax assets	8,002	7,985
Deferred income tax liabilities:
Retirement benefits	112	92
Lease and rents	4,469	4,639
Depreciation and amortization	7,732	7,139
Total deferred income tax liabilities	12,313	11,870
Net deferred income tax liabilities	$ 4,311	3,885
Disposal Group, Held-for-sale, Not Discontinued Operations
Deferred income tax assets:
Total deferred income tax assets		$ 131