Document And Entity Information - USD ($)	12 Months Ended
	Dec. 31, 2021	Jan. 28, 2022	Jun. 30, 2021
Cover [Abstract]
Document Type	10-K
Entity Central Index Key	0001521332
Current Fiscal Year End Date	--12-31
Document Fiscal Period Focus	FY
Document Fiscal Year Focus	2021
Amendment Flag	false
Document Period End Date	Dec. 31, 2021
Document Annual Report	true
Document Transition Report	false
Entity File Number	001-35346
Entity Registrant Name	APTIV PLC
Entity Incorporation, State or Country Code	Y9
Entity Tax Identification Number	98-1029562
Entity Address, Address Line One	5 Hanover Quay
Entity Address, Address Line Two	Grand Canal Dock
Entity Address, City or Town	Dublin
Entity Address, Postal Zip Code	D02 VY79
Entity Address, Country	IE
City Area Code	353
Country Region	1
Local Phone Number	259-7013
Entity Well-known Seasoned Issuer	Yes
Entity Voluntary Filers	No
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Large Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
ICFR Auditor Attestation Flag	true
Entity Shell Company	false
Entity Public Float			$ 42,398,905,595
Entity Common Stock, Shares Outstanding		270,514,140
Euro-Denominated Senior Notes, 1.500% Due 2025
Cover [Abstract]
Title of 12(b) Security	1.500% Senior Notes due 2025
Trading Symbol	APTV
Security Exchange Name	NYSE
Title of 12(b) Security	1.500% Senior Notes due 2025
Trading Symbol	APTV
Security Exchange Name	NYSE
Euro-denominated Senior Notes, 1.600% Due 2028
Cover [Abstract]
Title of 12(b) Security	1.600% Senior Notes due 2028
Trading Symbol	APTV
Security Exchange Name	NYSE
Title of 12(b) Security	1.600% Senior Notes due 2028
Trading Symbol	APTV
Security Exchange Name	NYSE
Senior Notes, 4.35% Due 2029 [Member]
Cover [Abstract]
Title of 12(b) Security	4.350% Senior Notes due 2029
Trading Symbol	APTV
Security Exchange Name	NYSE
Title of 12(b) Security	4.350% Senior Notes due 2029
Trading Symbol	APTV
Security Exchange Name	NYSE
Senior Notes, 4.400% Due 2046
Cover [Abstract]
Title of 12(b) Security	4.400% Senior Notes due 2046
Trading Symbol	APTV
Security Exchange Name	NYSE
Title of 12(b) Security	4.400% Senior Notes due 2046
Trading Symbol	APTV
Security Exchange Name	NYSE
Senior Notes, 5.40% Due 2049
Cover [Abstract]
Title of 12(b) Security	5.400% Senior Notes due 2049
Trading Symbol	APTV
Security Exchange Name	NYSE
Title of 12(b) Security	5.400% Senior Notes due 2049
Trading Symbol	APTV
Security Exchange Name	NYSE
Senior Notes, 3.10% Due 2051
Cover [Abstract]
Title of 12(b) Security	3.100% Senior Notes due 2051
Trading Symbol	APTV
Security Exchange Name	NYSE
Title of 12(b) Security	3.100% Senior Notes due 2051
Trading Symbol	APTV
Security Exchange Name	NYSE
Preferred Shares
Cover [Abstract]
Title of 12(b) Security	5.50% Mandatory Convertible Preferred Shares, Series A, $0.01 par value per share
Trading Symbol	APTV PRA
Security Exchange Name	NYSE
Title of 12(b) Security	5.50% Mandatory Convertible Preferred Shares, Series A, $0.01 par value per share
Trading Symbol	APTV PRA
Security Exchange Name	NYSE
Ordinary Shares
Cover [Abstract]
Title of 12(b) Security	Ordinary Shares. $0.01 par value per share
Trading Symbol	APTV
Security Exchange Name	NYSE
Title of 12(b) Security	Ordinary Shares. $0.01 par value per share
Trading Symbol	APTV
Security Exchange Name	NYSE