v3.26.1
Fair Value Measurements and Disclosures - Assets Measured on Recurring Basis or Disclosed at Fair Value (Details) - Recurring Fair Value Measurements [Member] - USD ($)
$ in Millions
Jun. 30, 2026
Dec. 31, 2025
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]    
Cash equivalents, Fair Value Measurement or Disclosure $ 233 $ 278
Investments, Fair Value Measurement or Disclosure 901 878
Long-term bank deposits and notes 688 678
Total equity investments 53 72
Total assets, Fair Value Measurement or Disclosure 1,875 1,906
Level 1 [Member]    
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]    
Cash equivalents, Fair Value Measurement or Disclosure 46 136
Investments, Fair Value Measurement or Disclosure 483 162
Total equity investments 38 57
Total assets, Fair Value Measurement or Disclosure 567 355
Level 2 [Member]    
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]    
Cash equivalents, Fair Value Measurement or Disclosure 187 142
Investments, Fair Value Measurement or Disclosure 418 716
Long-term bank deposits and notes 688 678
Total assets, Fair Value Measurement or Disclosure 1,293 1,536
Level 3 [Member]    
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]    
Total equity investments 15 15
Total assets, Fair Value Measurement or Disclosure 15 15
Fixed Income Debt Securities [Member]    
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]    
Cash equivalents, Fair Value Measurement or Disclosure [1] 149 185
Investments, Fair Value Measurement or Disclosure [1] 170 200
Long-term bank deposits and notes 150 [1] 150
Fixed Income Debt Securities [Member] | Level 1 [Member]    
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]    
Cash equivalents, Fair Value Measurement or Disclosure [1]   43
Fixed Income Debt Securities [Member] | Level 2 [Member]    
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]    
Cash equivalents, Fair Value Measurement or Disclosure [1] 149 142
Investments, Fair Value Measurement or Disclosure [1] 170 200
Long-term bank deposits and notes 150 [1] 150
Time Deposits [Member]    
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]    
Cash equivalents, Fair Value Measurement or Disclosure 38  
Investments, Fair Value Measurement or Disclosure 154 420
Long-term bank deposits and notes 359 352
Time Deposits [Member] | Level 2 [Member]    
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]    
Cash equivalents, Fair Value Measurement or Disclosure 38  
Investments, Fair Value Measurement or Disclosure 154 420
Long-term bank deposits and notes 359 352
Money Market Funds [Member]    
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]    
Cash equivalents, Fair Value Measurement or Disclosure 46 93
Money Market Funds [Member] | Level 1 [Member]    
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]    
Cash equivalents, Fair Value Measurement or Disclosure 46 93
Variable Return Investments [Member]    
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]    
Investments, Fair Value Measurement or Disclosure 483 162
Long-term bank deposits and notes 154 151
Variable Return Investments [Member] | Level 1 [Member]    
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]    
Investments, Fair Value Measurement or Disclosure 483 162
Variable Return Investments [Member] | Level 2 [Member]    
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]    
Long-term bank deposits and notes 154 151
Structured Deposits [Member]    
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]    
Investments, Fair Value Measurement or Disclosure 94 96
Long-term bank deposits and notes 25 25
Structured Deposits [Member] | Level 2 [Member]    
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]    
Investments, Fair Value Measurement or Disclosure 94 96
Long-term bank deposits and notes 25 25
Investment in Equity Securities [Member]    
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]    
Total equity investments 38 57
Investment in Equity Securities [Member] | Level 1 [Member]    
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]    
Total equity investments 38 57
Investment in Available-For-Sale Debt Securities [Member]    
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]    
Total equity investments 15 15
Investment in Available-For-Sale Debt Securities [Member] | Level 3 [Member]    
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]    
Total equity investments $ 15 $ 15
[1] Classified as held-to-maturity investments and measured at amortized cost.