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UNCONSOLIDATED AFFILIATES - Narrative (Details) - USD ($)
$ in Millions
3 Months Ended 9 Months Ended
Sep. 30, 2023
Jun. 30, 2023
Sep. 30, 2022
Sep. 30, 2023
Sep. 30, 2022
Investments in and Advances to Affiliates [Line Items]          
Contributions to unconsolidated affiliates       $ 111 $ 2
Roadrunner          
Investments in and Advances to Affiliates [Line Items]          
Contributions to unconsolidated affiliates   $ 105      
Unconsolidated Affiliates          
Investments in and Advances to Affiliates [Line Items]          
Unconsolidated entities expenses in transactions $ 33   $ 26 $ 88 $ 56