Corporate Income Tax Rate

No definition available.

Name:	aptv_CorporateIncomeTaxRate
Namespace Prefix:	aptv_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

The portion of the difference, between total income tax expense or benefit as reported in the Income Statement for the period and the expected income tax expense or benefit computed by applying the domestic federal statutory income tax rates to pretax income from continuing operations, that is attributable to total foreign income tax expense or benefit. The foreign income tax expense or benefit difference represents the income tax expense or benefit at applicable domestic statutory income tax rates applied to foreign earnings or loss for the period versus the foreign income tax expense or benefit calculated by applying the appropriate foreign tax rates for China, Turkey, and Mexico

+ References

No definition available.

Income Taxes Income Tax Rate Reconciliation (Details) - USD ($) $ / shares in Units, $ in Millions	3 Months Ended	12 Months Ended					36 Months Ended
	Dec. 31, 2016	Mar. 31, 2021	Dec. 31, 2017	Dec. 31, 2016	Mar. 31, 2016	Dec. 31, 2015	Mar. 31, 2020
Income Tax Expense (Benefit), Continuing Operations, Income Tax Reconciliation [Abstract]
Notional U.S. federal income taxes at statutory rate			$ 439	$ 350		$ 349
Income taxed at other rates			(260)	(86)		(120)
Change in valuation allowance	$ (17)		(6)	(17)		15
Other change in tax reserves			25	76		6
Witholding taxes			64	44		50
Tax credits			32	196		133
Change in tax law			(6)	(1)		11
Other adjustments			(1)	(3)		(17)
Total income tax expense			$ 223	$ 167		$ 161
Effective tax rate			18.00%	17.00%		16.00%
Income Tax Reconciliation, Other Reconciling Items [Abstract]
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate			35.00%
Income Taxed at Other Rates Foreign Income Rate Differential in China, Turkey, and Honduras			$ 45	$ 45		$ 46
Income Tax Holiday, Aggregate Dollar Amount			$ 7	$ 10		$ 14
Income Tax Holiday, Income Tax Benefits Per Share			$ 0.03	$ 0.04		$ 0.05
Foreign Tax Authority
Income Tax Expense (Benefit), Continuing Operations, Income Tax Reconciliation [Abstract]
Tax credits related to contingency accrual			$ 18
Income Tax Reconciliation, Other Reconciling Items [Abstract]
Tax contingency accrual			76
Her Majesty's Revenue and Customs (HMRC) \| Foreign Tax Authority
Income Tax Reconciliation, Other Reconciling Items [Abstract]
Corporate Income Tax Rate					20.00%
Subsequent Event \| Her Majesty's Revenue and Customs (HMRC) \| Foreign Tax Authority
Income Tax Reconciliation, Other Reconciling Items [Abstract]
Corporate Income Tax Rate		18.00%					19.00%
United States
Income Tax Expense (Benefit), Continuing Operations, Income Tax Reconciliation [Abstract]
Tax credits			16
Change in tax law			$ 50