Consolidated Statements of Comprehensive Income (Loss) - USD ($) $ in Millions	3 Months Ended
Dec. 31, 2019	Dec. 31, 2018
Statement of Comprehensive Income [Abstract]
Net income (loss)	$ (142)	$ 11
Other comprehensive income (loss), net of tax:
Foreign currency translation adjustments	59	16
Realized and unrealized gains (losses) on derivatives		(3)
Realized and unrealized gains (losses) on derivatives	15
Other comprehensive income (loss)	74	13
Total comprehensive income (loss)	(68)	24
Comprehensive income (loss) attributable to noncontrolling interests	34	28
Comprehensive income (loss) attributable to Adient	$ (102)	$ (4)

Amount after tax of increase (decrease) in equity from transactions and other events and circumstances from net income and other comprehensive income, attributable to parent entity. Excludes changes in equity resulting from investments by owners and distributions to owners.

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