Shareholders' Equity And Net Income Per Share Weighted Average Shares Outstanding and Net Income Per Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Millions	3 Months Ended		12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Numerator:
Net income attributable to ordinary shareholders	$ 233	$ 15	$ 531	$ 527	$ 1,769
Net income attributable to Aptiv			594	590	1,804
MCPS dividends			$ (63)	$ (63)	$ (35)
Denominator:
Weighted average ordinary shares outstanding, basic	270,950	270,520	270,900	270,460	263,430
Dilutive shares related to RSUs			280	760	440
Weighted average MCPS converted shares			0	0	6,830
Weighted average ordinary shares outstanding, including dilutive shares	271,400	271,470	271,180	271,220	270,700
Basic net income per share:
Basic net income per share attributable to ordinary shareholders	$ 0.86	$ 0.06	$ 1.96	$ 1.95	$ 6.72
Diluted net income per share:
Diluted	$ 0.86	$ 0.06	$ 1.96	$ 1.94	$ 6.66
Preferred Shares
Numerator:
MCPS dividends					$ 0