v3.25.2
Investments and Fair Value Measurement - Investments (Details) - USD ($)
$ in Millions
Jun. 30, 2025
Dec. 31, 2024
Schedule of Investments [Line Items]    
Short-term investments $ 932 $ 1,084
Restricted investments 7,864 7,019
Investments 8,660 8,460
Related Party    
Schedule of Investments [Line Items]    
Note receivable from a related party $ 146 144
Aurora    
Schedule of Investments [Line Items]    
Equity securities restricted (as a percent) 25.00%  
Equity securities pledged as collateral (as a percent) 48.00%  
U.S. government and agency securities    
Schedule of Investments [Line Items]    
Short-term investments $ 201 167
Restricted investments 6,112 5,552
Commercial paper    
Schedule of Investments [Line Items]    
Short-term investments 306 220
Restricted investments 60 179
Corporate bonds    
Schedule of Investments [Line Items]    
Short-term investments 384 659
Restricted investments 1,678 1,288
Certificates of deposit    
Schedule of Investments [Line Items]    
Short-term investments 41 38
Asset-backed securities    
Schedule of Investments [Line Items]    
Restricted investments 14 0
Non-marketable equity securities | Didi    
Schedule of Investments [Line Items]    
Non-marketable equity securities 2,792 2,602
Non-marketable equity securities | Other    
Schedule of Investments [Line Items]    
Non-marketable equity securities 778 608
Marketable equity securities | Grab    
Schedule of Investments [Line Items]    
Marketable equity securities 2,696 2,529
Marketable equity securities | Aurora    
Schedule of Investments [Line Items]    
Marketable equity securities 1,708 2,054
Marketable equity securities | Other    
Schedule of Investments [Line Items]    
Marketable equity securities $ 540 $ 523