Segment Reporting Reconciliation of Adjusted OI to Net Income (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Segment Reporting Information [Line Items]
Adjusted operating income	$ 437	$ 324
Amortization of intangible assets	59	37
Restructuring Charges	11	22
Other acquisition and portfolio project costs	14	9
Compensation expense related to acquisitions	(5)
Operating income	348	256
Interest Expense	(67)	(43)
Other expense, net	(1)	(39)
Income before income taxes and equity loss	280	174
Income tax expense	(34)	(21)
Equity loss, net of tax	(82)	(63)
Net income	164	90
Net income attributable to noncontrolling interest	3	1
Net loss attributable to redeemable noncontrolling interest	(1)	0
Net income attributable to Aptiv	162	89
Signal and Power Solutions
Segment Reporting Information [Line Items]
Restructuring Charges	7	9
Advanced Safety and User Experience
Segment Reporting Information [Line Items]
Restructuring Charges	4	13
Operating Segments | Signal and Power Solutions
Segment Reporting Information [Line Items]
Adjusted operating income	374	308
Amortization of intangible assets	36	35
Restructuring Charges	7	9
Other acquisition and portfolio project costs	12	7
Compensation expense related to acquisitions	0
Operating income	319	257
Equity loss, net of tax	3	4
Net loss attributable to redeemable noncontrolling interest	(1)
Operating Segments | Advanced Safety and User Experience
Segment Reporting Information [Line Items]
Adjusted operating income	63	16
Amortization of intangible assets	23	2
Restructuring Charges	4	13
Other acquisition and portfolio project costs	2	2
Compensation expense related to acquisitions	(5)
Operating income	29	(1)
Equity loss, net of tax	(85)	$ (67)
Net loss attributable to redeemable noncontrolling interest	$ 0