v3.26.3
Fair Value Measurements - Measured on Recurring Basis (Details) - USD ($)
$ in Millions
Sep. 30, 2026
Dec. 31, 2025
Assets    
Equity Securities $ 406 $ 457
Total assets 4,030 3,688
Interest rate derivatives (see Note 3) (66) (16)
Cash equivalents    
Assets    
Cash equivalents 3,424 2,831
Time deposits    
Assets    
Cash equivalents 200 400
Quoted prices in active markets for identical assets (Level 1)    
Assets    
Equity Securities 406 457
Total assets 3,830 3,288
Interest rate derivatives (see Note 3) 0 0
Quoted prices in active markets for identical assets (Level 1) | Cash equivalents    
Assets    
Cash equivalents 3,424 2,831
Quoted prices in active markets for identical assets (Level 1) | Time deposits    
Assets    
Cash equivalents 0 0
Significant other observable inputs (Level 2)    
Assets    
Equity Securities 0 0
Total assets 200 400
Interest rate derivatives (see Note 3) (66) (16)
Significant other observable inputs (Level 2) | Cash equivalents    
Assets    
Cash equivalents 0 0
Significant other observable inputs (Level 2) | Time deposits    
Assets    
Cash equivalents $ 200 $ 400