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Investments in Unconsolidated Entities - Schedule of Investments (Details) - USD ($)
$ in Millions
 3 Months Ended 6 Months Ended
Jun. 30, 2025
Jun. 30, 2024
Jun. 30, 2025
Jun. 30, 2024
Dec. 31, 2024
Equity Method Investments and Joint Ventures [Abstract]          
Equity method investments $ 464   $ 464   $ 472
Measurement alternative method investments 21   21   19
Investments recorded using the net asset value practical expedient 8   8   9
Total investments in unconsolidated entities 493 $ 507 493 $ 507 $ 500
Schedule of Equity Method Investments [Line Items]          
Revenues 1,186 1,238 2,341 2,500  
Operating expenses 1,146 1,199 2,267 2,394  
Operating income 40 39 74 106  
Other income (expense), net 2 1 5 2  
Net income 18 7 30 45  
Equity Method Investments          
Schedule of Equity Method Investments [Line Items]          
Revenues 1,939 1,828 3,855 3,677  
Operating expenses 1,516 1,419 3,040 2,840  
Operating income 423 409 815 837  
Other income (expense), net (3) 8 (15) (1)  
Net income $ 420 $ 417 $ 800 $ 836