Segment Reporting Geographical Data (Details) - USD ($) $ in Millions		3 Months Ended		12 Months Ended
		Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Segment Reporting Information [Line Items]
Operating lease right-of-use asset (Note 25)		$ 383	$ 380	$ 383	$ 380
Property, net	[1]	3,677	3,681	3,677	3,681	$ 3,722
Revenues		4,134	4,212	15,618	13,066	14,357
United States
Segment Reporting Information [Line Items]
Property, net	[1],[2]	1,010	985	1,010	985	1,029
Revenues	[2]			5,196	4,382	5,308
Other North America
Segment Reporting Information [Line Items]
Property, net	[1]	248	253	248	253	264
Revenues				136	112	136
EMEA
Segment Reporting Information [Line Items]
Property, net	[1],[3]	1,390	1,440	1,390	1,440	1,398
Revenues	[3]			5,179	4,483	4,791
Asia Pacific [Member]
Segment Reporting Information [Line Items]
Property, net	[1],[4]	978	953	978	953	970
Revenues	[4]			4,829	3,898	3,876
South America [Member]
Segment Reporting Information [Line Items]
Property, net	[1]	$ 51	$ 50	51	50	61
Revenues				278	191	246
Germany
Segment Reporting Information [Line Items]
Revenues				1,436	1,248	1,340
JERSEY
Segment Reporting Information [Line Items]
Revenues				$ 0	$ 0	$ 0

[1] Includes property, plant and equipment, net of accumulated depreciation and operating lease right-of-use assets.

[2] Includes net sales and machinery, equipment and tooling that relate to the Company’s maquiladora operations located in Mexico. These assets are utilized to produce products sold to customers located in the U.S.

[3] Includes Aptiv’s country of domicile, Jersey. The Company had no sales or long-lived assets in Jersey in any period. The largest portion of net sales in the Europe, Middle East & Africa region was $1,436 million, $1,248 million and $1,340 million in Germany for the years ended December 31, 2021, 2020 and 2019, respectively.

[4] Net sales and long-lived assets in Asia Pacific are primarily attributable to China.