v3.25.4
Financial Instruments - Debt Securities (Details) - USD ($)
$ in Millions
Dec. 31, 2025
Dec. 31, 2024
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Cash Equivalents $ 1,545 $ 1,498
Marketable Securities 4,233 3,981
Long-term investments 975 709
Equity and Other Investments 4,582 4,647
Levels 1, 2 and 3    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Cash Equivalents 1 159
Marketable Securities 4,233 3,981
Long-term investments 975 709
Equity and Other Investments 558 543
Fair Value 5,782 5,403
Level 1    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Cash Equivalents 1 159
Marketable Securities 2,443 2,166
Long-term investments 527 537
Equity and Other Investments 0 0
Fair Value 2,984 2,872
Level 1 | U.S. term deposits    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Cash Equivalents 0 0
Marketable Securities 520 470
Long-term investments 0 0
Equity and Other Investments 0 0
Fair Value 531 481
Level 1 | U.S. federal bonds and agency securities    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Cash Equivalents 1 20
Marketable Securities 1,923 1,696
Long-term investments 527 537
Equity and Other Investments 0 0
Fair Value 2,453 2,252
Level 1 | Corporate bonds and commercial paper    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Cash Equivalents   139
Marketable Securities   0
Long-term investments   0
Equity and Other Investments   0
Fair Value   139
Level 2 | Corporate bonds and commercial paper    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Cash Equivalents 0 0
Marketable Securities 1,790 1,815
Long-term investments 448 172
Equity and Other Investments 0 0
Fair Value 2,240 1,988
Level 3 | Convertible notes in private companies    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Cash Equivalents 0 0
Marketable Securities 0 0
Long-term investments 0 0
Equity and Other Investments 558 543
Fair Value $ 558 $ 543