Property and Equipment - Narrative (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Property, Plant and Equipment [Abstract]
Depreciation expense	$ 94	$ 105	$ 107
Amortization expense on computer software and leasehold improvements	885	809	765
Computer software amortization	803	734	685
Capitalized costs related to the internal development of software	6,694	6,363
Impairment of property and equipment	$ 129	$ 72	$ 446