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CONSOLIDATED INCOME STATEMENT (Parenthetical) - USD ($)
$ in Millions
3 Months Ended 6 Months Ended
Sep. 30, 2022
Sep. 30, 2021
Sep. 30, 2022
Sep. 30, 2021
CONSOLIDATED INCOME STATEMENT        
Related-party revenue $ 82 $ 144 $ 287 $ 291
Related-party cost of services $ 421 $ 966 $ 1,382 $ 1,872