v3.26.1
Financial Instruments - Debt Securities (Details) - USD ($)
$ in Millions
Jun. 30, 2026
Dec. 31, 2025
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Cash Equivalents $ 1,656 $ 1,545
Marketable securities 3,291 4,233
Long-term investments 525 975
Equity and Other Investments 4,854 4,582
Levels 1, 2 and 3    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Cash Equivalents 25 1
Marketable securities 3,291 4,233
Long-term investments 525 975
Equity and Other Investments 587 558
Fair Value 4,433 5,782
Level 1    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Cash Equivalents 25 1
Marketable securities 1,895 2,443
Long-term investments 407 527
Equity and Other Investments 0 0
Fair Value 2,333 2,984
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 375 520
Long-term investments 0 0
Equity and Other Investments 0 0
Fair Value 384 531
Level 1 | U.S. federal bonds and agency securities    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Cash Equivalents 0 1
Marketable securities 1,520 1,923
Long-term investments 407 527
Equity and Other Investments 0 0
Fair Value 1,924 2,453
Level 1 | Corporate bonds and commercial paper    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Cash Equivalents 25  
Marketable securities 0  
Long-term investments 0  
Equity and Other Investments 0  
Fair Value 25  
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 1,396 1,790
Long-term investments 118 448
Equity and Other Investments 0 0
Fair Value 1,513 2,240
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 587 558
Fair Value $ 587 $ 558