Fair Value Measurements (Tables)

3 Months Ended

Dec. 31, 2021

Fair Value Disclosures [Abstract]

Schedule of the Fair Value Hierarchy for Assets and Liabilities

The following tables present Adient's fair value hierarchy for those assets and liabilities measured at fair value:

	Fair Value Measurements Using:
(in millions)	Total as of December 31, 2021		Quoted Prices in Active Markets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
Other current assets
Foreign currency exchange derivatives	$	11	$	—	$	11	$	—
Other noncurrent assets
Foreign currency exchange derivatives	1		—		1		—
Total assets	$	12	$	—	$	12	$	—
Other current liabilities
Foreign currency exchange derivatives	$	13	$	—	$	13	$	—
Other noncurrent liabilities
Foreign currency exchange derivatives	3		—		3		—
Total liabilities	$	16	$	—	$	16	$	—

	Fair Value Measurements Using:
(in millions)	Total as of September 30, 2021		Quoted Prices in Active Markets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
Other current assets
Foreign currency exchange derivatives	$	8	$	—	$	8	$	—
Other noncurrent assets
Interest rate cap	1		—		1		—
Total assets	$	9	$	—	$	9	$	—
Other current liabilities
Foreign currency exchange derivatives	$	24	$	—	$	24	$	—
Cross-currency interest rate swaps	—		—		—		—
Other noncurrent liabilities
Foreign currency exchange derivatives	4		—		4		—
Total liabilities	$	28	$	—	$	28	$	—