XML 15 R5.htm IDEA: XBRL DOCUMENT v3.22.1
Consolidated Statements of Operations (Unaudited) (Parenthetical) - USD ($)
$ in Millions
3 Months Ended 6 Months Ended
Mar. 31, 2022
Mar. 31, 2021
Mar. 31, 2022
Mar. 31, 2021
Income Statement [Abstract]        
Depreciation expense $ (20) $ (19) $ (41) $ (38)