Assets and Liabilities (Details) - USD ($) $ in Millions	Dec. 31, 2025	Dec. 31, 2024
Leases [Abstract]
Operating lease right-of-use assets	$ 1,207	$ 1,194
Accounts payable and other current liabilities	221	299
Operating lease liabilities	903	727
Total operating lease liabilities	1,124	1,026
Property and equipment	329	336
Accumulated depreciation	(219)	(215)
Property and equipment, net	110	121
Long-term debt due within one year	23	22
Long-term debt	35	50
Total finance lease liabilities	$ 58	$ 72