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Investments in Unconsolidated Entities - Schedule of Investments (Details) - USD ($)
$ in Millions
 3 Months Ended 6 Months Ended
Jun. 30, 2022
Jun. 30, 2021
Jun. 30, 2022
Jun. 30, 2021
Dec. 31, 2021
Equity Method Investments and Joint Ventures [Abstract]          
Equity method investments $ 427   $ 427   $ 431
Measurement alternative method investments 4   4   8
Investments recorded using the net asset value practical expedient 10   10   0
Total investments in unconsolidated entities 441   441   $ 439
Schedule of Equity Method Investments [Line Items]          
Revenues 1,027 $ 1,014 2,037 $ 2,037  
Operating expenses 987 978 1,926 1,917  
Operating income 40 36 111 120  
Net income 22 35 74 97  
Equity method investments          
Schedule of Equity Method Investments [Line Items]          
Revenues 1,772 1,742 3,581 3,469  
Operating expenses 1,390 1,216 2,761 2,491  
Operating income 382 526 820 978  
Other income (expense), net (1) (2) (5) 10  
Net income $ 381 $ 524 $ 815 $ 988