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Fair Value Measurements - Schedule of Assets and Liabilities Measured at Fair Value on a Recurring Basis (Details) - USD ($)
$ in Millions
Mar. 31, 2026
Dec. 31, 2025
Disclosure Of Fair Value Measurement Of Assets And Liabilities [Line Items]    
Total financial assets $ 16,897 $ 17,141
Total financial liabilities 5,149 5,158
Derivatives    
Disclosure Of Fair Value Measurement Of Assets And Liabilities [Line Items]    
Total financial liabilities 31 37
(Level 1) | Derivatives    
Disclosure Of Fair Value Measurement Of Assets And Liabilities [Line Items]    
Total financial liabilities 0 0
(Level 2) | Derivatives    
Disclosure Of Fair Value Measurement Of Assets And Liabilities [Line Items]    
Total financial liabilities 31 37
(Level 3) | Derivatives    
Disclosure Of Fair Value Measurement Of Assets And Liabilities [Line Items]    
Total financial liabilities 0 0
Cash equivalents    
Disclosure Of Fair Value Measurement Of Assets And Liabilities [Line Items]    
Total financial assets 1,414 1,331
Cash equivalents | (Level 1)    
Disclosure Of Fair Value Measurement Of Assets And Liabilities [Line Items]    
Total financial assets 1,414 1,331
Cash equivalents | (Level 2)    
Disclosure Of Fair Value Measurement Of Assets And Liabilities [Line Items]    
Total financial assets 0 0
Cash equivalents | (Level 3)    
Disclosure Of Fair Value Measurement Of Assets And Liabilities [Line Items]    
Total financial assets 0 0
Investments in marketable securities    
Disclosure Of Fair Value Measurement Of Assets And Liabilities [Line Items]    
Total financial assets 1,924 2,181
Investments in marketable securities | (Level 1)    
Disclosure Of Fair Value Measurement Of Assets And Liabilities [Line Items]    
Total financial assets 515 565
Investments in marketable securities | (Level 2)    
Disclosure Of Fair Value Measurement Of Assets And Liabilities [Line Items]    
Total financial assets 1,409 1,616
Investments in marketable securities | (Level 3)    
Disclosure Of Fair Value Measurement Of Assets And Liabilities [Line Items]    
Total financial assets 0 0
Derivatives    
Disclosure Of Fair Value Measurement Of Assets And Liabilities [Line Items]    
Total financial assets 189 161
Derivatives | (Level 1)    
Disclosure Of Fair Value Measurement Of Assets And Liabilities [Line Items]    
Total financial assets 0 0
Derivatives | (Level 2)    
Disclosure Of Fair Value Measurement Of Assets And Liabilities [Line Items]    
Total financial assets 189 161
Derivatives | (Level 3)    
Disclosure Of Fair Value Measurement Of Assets And Liabilities [Line Items]    
Total financial assets 0 0
Investments in equity securities    
Disclosure Of Fair Value Measurement Of Assets And Liabilities [Line Items]    
Total financial assets 105 101
Investments in equity securities | (Level 1)    
Disclosure Of Fair Value Measurement Of Assets And Liabilities [Line Items]    
Total financial assets 0 0
Investments in equity securities | (Level 2)    
Disclosure Of Fair Value Measurement Of Assets And Liabilities [Line Items]    
Total financial assets 0 0
Investments in equity securities | (Level 3)    
Disclosure Of Fair Value Measurement Of Assets And Liabilities [Line Items]    
Total financial assets $ 105 $ 101