Leases - Lease Cost and Other Information (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Lease cost:
Operating lease cost	$ 430	$ 410	$ 390
Short-term lease cost	105	135	126
Total lease cost	535	545	516
Other information:
Operating lease liability principal payments	415	397	374
Right-of-use assets obtained in exchange for new operating lease liabilities	$ 278	$ 437	$ 327
Weighted-average remaining lease term - operating leases (in years)	7 years	7 years
Weighted average discount rate - operating leases	4.80%	4.50%