v3.26.1
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
Mar. 31, 2026
Mar. 31, 2025
Numerator, diluted:    
Net income attributable to Aptiv $ 189 $ (11)
Denominator:    
Weighted average number of basic shares outstanding 212,910 230,160
Dilutive shares related to restricted stock units (“RSUs”) 890 0
Weighted average ordinary shares outstanding, including dilutive shares 213,800 230,160
Basic net income per share:    
Basic net income per share attributable to ordinary shareholders $ 0.89 $ (0.05)
Diluted net income per share (Note 12):    
Diluted net income per share attributable to ordinary shareholders $ 0.88 $ (0.05)