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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 $ 431   $ 431   $ 440
Measurement alternative method investments 5   5   5
Investments recorded using the net asset value practical expedient 8   8   9
Total investments in unconsolidated entities 444 $ 461 444 $ 461 $ 454
Schedule of Equity Method Investments [Line Items]          
Revenues 916 927 1,807 1,877  
Operating expenses 881 891 1,731 1,789  
Operating income 35 36 76 88  
Net income 32 18 52 42  
Equity method investments          
Schedule of Equity Method Investments [Line Items]          
Revenues 1,933 1,821 3,841 3,663  
Operating expenses 1,511 1,413 3,028 2,828  
Operating income 422 408 813 835  
Other income (expense), net (3) 8 (15) (1)  
Net income $ 419 $ 416 $ 798 $ 834