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Condensed Consolidated Statements of Operations (Parenthetical) - USD ($)
$ in Millions
3 Months Ended 6 Months Ended
Mar. 31, 2025
Mar. 31, 2024
Mar. 31, 2025
Mar. 31, 2024
Income Statement [Abstract]        
Depreciation expense $ (28) $ (26) $ (57) $ (52)