Consolidated Statement Of Redeemable Noncontrolling Interest and Shareholders' Equity - USD ($) $ in Millions	Total	Ordinary Shares	Preferred Shares	Additional Paid in Capital	Retained Earnings	Accumulated Other Comprehensive Loss	Parent	Noncontrolling Interest	Redeemable Noncontrolling Interest
Redeemable noncontrolling interest (Note 2)									$ 0
Balance at Dec. 31, 2021	$ 8,561	$ 3	$ 0	$ 3,939	$ 5,077	$ (672)	$ 8,347	$ 214
Balance, in shares at Dec. 31, 2021		271,000,000	12,000,000
Net income attributable to Aptiv	345				345		345
Other comprehensive income	(479)					(479)	(479)
Net income (loss) attributable to noncontrolling interest	(21)							(21)
Other comprehensive loss attributable to noncontrolling interest	1							1
Dividend payments of consolidated affiliates to minority shareholders	(8)							(8)
Mandatory convertible preferred share cumulative dividends	(47)				(47)		(47)
Taxes witheld on employees' restricted share award vestings	$ (36)			(36)			(36)
Repurchase of ordinary shares, in shares	0
Share based compensation	$ 65			65			65
Balance at Sep. 30, 2022	8,381	$ 3	$ 0	3,968	5,375	(1,151)	8,195	186
Balance, in shares at Sep. 30, 2022		271,000,000	12,000,000
Redeemable noncontrolling interest (Note 2)									0
Balance at Jun. 30, 2022	8,282	$ 3	$ 0	3,949	5,089	(942)	8,099	183
Balance, in shares at Jun. 30, 2022		271,000,000	12,000,000
Net income attributable to Aptiv	301				301		301
Other comprehensive income	(209)					(209)	(209)
Net income (loss) attributable to noncontrolling interest	5							5
Other comprehensive loss attributable to noncontrolling interest	(2)							(2)
Mandatory convertible preferred share cumulative dividends	$ (15)				(15)		(15)
Repurchase of ordinary shares, in shares	0
Share based compensation	$ 19			19			19
Balance at Sep. 30, 2022	8,381	$ 3	$ 0	3,968	5,375	(1,151)	8,195	186
Balance, in shares at Sep. 30, 2022		271,000,000	12,000,000
Redeemable noncontrolling interest (Note 2)									0
Redeemable noncontrolling interest (Note 2)	96								96
Balance at Dec. 31, 2022	8,998	$ 3	$ 0	3,989	5,608	(791)	8,809	189
Balance, in shares at Dec. 31, 2022		271,000,000	12,000,000
Net income attributable to Aptiv	2,033				2,033		2,033
Other comprehensive income	10					12	12	(2)	(2)
Net income (loss) attributable to noncontrolling interest	15							15	(1)
Mandatory convertible preferred share cumulative dividends	(29)				(29)		(29)
Conversion of MCPS to ordinary shares		12,000,000
Taxes witheld on employees' restricted share award vestings	(31)			(31)			(31)
Conversion of MCPS to ordinary shares			(12,000,000)
Repurchases of ordinary shares	$ (98)			(8)	(90)		(98)
Repurchase of ordinary shares, in shares	(872,774)	(1,000,000)
Share based compensation	$ 82			82			82
Share-based compensation, in shares		1,000,000
Balance at Sep. 30, 2023	10,980	$ 3	$ 0	4,032	7,522	(779)	10,778	202
Balance, in shares at Sep. 30, 2023		283,000,000	0
Redeemable noncontrolling interest (Note 2)									97
Balance at Jun. 30, 2023	9,425	$ 3	$ 0	4,001	5,893	(665)	9,232	193
Balance, in shares at Jun. 30, 2023		283,000,000	0
Net income attributable to Aptiv	1,629				1,629		1,629
Other comprehensive income	(113)					(114)	(114)	1	(4)
Net income (loss) attributable to noncontrolling interest	$ 8							8
Repurchase of ordinary shares, in shares	0
Share based compensation	$ 31			31			31
Balance at Sep. 30, 2023	10,980	$ 3	$ 0	$ 4,032	$ 7,522	$ (779)	$ 10,778	$ 202
Balance, in shares at Sep. 30, 2023		283,000,000	0
Redeemable noncontrolling interest (Note 2)	$ 93								$ 93