Equity and Noncontrolling Interests (Tables)

12 Months Ended

Sep. 30, 2019

Equity [Abstract]

Schedule of AOCI

The following table presents changes in AOCI attributable to Adient:

	Year Ended September 30,
(in millions)	2019		2018		2017
Foreign currency translation adjustments
Balance at beginning of period	$	(523)	$	(398)	$	(260)
Aggregate adjustment for the period, net of tax	(35)		(125)		(138)
Balance at end of period	(558)		(523)		(398)
Realized and unrealized gains (losses) on derivatives
Balance at beginning of period	(7)		3		(14)
Current period changes in fair value, net of tax	(5)		(13)		6
Reclassification to income, net of tax	4		3		11
Balance at end of period	(8)		(7)		3
Pension and postretirement plans
Balance at beginning of period	(1)		(2)		(2)
Net reclassifications to AOCI	(2)		1		—
Balance at end of period	(3)		(1)		(2)
Accumulated other comprehensive income (loss), end of period	$	(569)	$	(531)	$	(397)

Schedule of Changes in Redeemable Noncontrolling Interest

The following table presents changes in the redeemable noncontrolling interests:

	Year Ended September 30,
(in millions)	2019		2018		2017
Beginning balance	$	47	$	28	$	34
Net income	30		24		25
Foreign currency translation adjustments	3		1		—
Dividends	(29)		(7)		(31)
Change in noncontrolling interest share	—		1		—
Ending balance	$	51	$	47	$	28