XML 68 R52.htm IDEA: XBRL DOCUMENT v3.20.2
Basis of Presentation and Summary of Significant Accounting Policies - Earnings Per Share (Details) - USD ($)
$ / shares in Units, $ in Millions
 12 Months Ended
Sep. 30, 2020
Sep. 30, 2019
Sep. 30, 2018
Numerator:      
Net income (loss) attributable to Adient $ (547) $ (491) $ (1,685)
Denominator:      
Basic (in shares) 93,800,000 93,600,000 93,300,000
Effect of dilutive securities (in shares) 0 0 0
Diluted (in shares) 93,800,000 93,600,000 93,300,000
Earnings per share:      
Basic (in dollars per share) $ (5.83) $ (5.25) $ (18.06)
Diluted (in dollars per share) $ (5.83) $ (5.25) $ (18.06)