Leases - Schedule of Supplemental Balance Sheet Information (Details) - USD ($) $ in Millions	Mar. 31, 2026	Dec. 31, 2025
Property leases
Operating lease right-of-use assets	$ 3,182	$ 3,239
Short-term operating lease liabilities	643	680
Long-term operating lease liabilities	2,594	2,614
Operating lease liabilities	$ 3,237	$ 3,294
Weighted average remaining lease term	7 years 7 months 6 days	7 years 7 months 6 days
Weighted average discount rate	5.37%	5.35%
Operating lease, liability, current, statement of financial position [extensible enumeration]	Accounts Payable and Accrued Liabilities, Current	Accounts Payable and Accrued Liabilities, Current