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Investments in Unconsolidated Entities - Schedule of Investments (Details) - USD ($)
$ in Millions
 3 Months Ended 6 Months Ended
Jun. 30, 2024
Jun. 30, 2023
Jun. 30, 2024
Jun. 30, 2023
Dec. 31, 2023
Equity Method Investments and Joint Ventures [Abstract]          
Equity method investments $ 478   $ 478   $ 477
Measurement alternative method investments 20   20   19
Investments recorded using the net asset value practical expedient 9   9   9
Total investments in unconsolidated entities 507 $ 500 507 $ 500 $ 505
Schedule of Equity Method Investments [Line Items]          
Revenues 1,238 1,267 2,500 2,570  
Operating expenses 1,199 1,234 2,394 2,508  
Operating income 39 33 106 62  
Other income (expense), net 1 0 2 1  
Net income 7 0 45 12  
Equity Method Investments          
Schedule of Equity Method Investments [Line Items]          
Revenues 1,828 1,770 3,677 3,579  
Operating expenses 1,419 1,363 2,840 2,729  
Operating income 409 407 837 850  
Other income (expense), net 8 8 (1) (8)  
Net income $ 417 $ 415 $ 836 $ 842