Financial Assets & Liabilities - Fair Value Measurements (Details) - USD ($) $ in Millions	Mar. 31, 2026	Dec. 31, 2025
Financial assets and financial liabilities measured at fair value on a recurring basis:
Cash equivalents	$ 5,000	$ 7,485
Debt securities - current	964	830
Total assets	6,724	8,916
Total liabilities	693	513
Prepaid Expenses and Other Current Assets
Financial assets and financial liabilities measured at fair value on a recurring basis:
Derivative assets	568	232
Other Noncurrent Assets
Financial assets and financial liabilities measured at fair value on a recurring basis:
Derivative assets	182	361
Other Current Liabilities
Financial assets and financial liabilities measured at fair value on a recurring basis:
Derivative liabilities	254	254
Other Noncurrent Liabilities
Financial assets and financial liabilities measured at fair value on a recurring basis:
Derivative liabilities	439	259
Level 1 | Money market funds
Financial assets and financial liabilities measured at fair value on a recurring basis:
Cash equivalents	1,934	413
Level 2
Financial assets and financial liabilities measured at fair value on a recurring basis:
Debt securities - current	964	830
Level 2 | Interest rate contracts
Financial assets and financial liabilities measured at fair value on a recurring basis:
Derivatives designated as hedging - Assets	1	2
Derivatives designated as hedging - Liabilities	195	171
Level 2 | Foreign exchange contracts
Financial assets and financial liabilities measured at fair value on a recurring basis:
Derivatives designated as hedging - Assets	738	545
Derivatives designated as hedging - Liabilities	399	325
Derivatives not designated as hedging - Assets	11	12
Derivatives not designated as hedging - Liabilities	37	14
Level 2 | Equity contracts
Financial assets and financial liabilities measured at fair value on a recurring basis:
Derivatives not designated as hedging - Assets	0	34
Derivatives not designated as hedging - Liabilities	62	3
Level 2 | Time deposits, certificates of deposit and other
Financial assets and financial liabilities measured at fair value on a recurring basis:
Cash equivalents	3,066	7,072
Level 2 And 3
Financial assets and financial liabilities measured at fair value on a recurring basis:
Debt securities - noncurrent	$ 9	$ 9