Significant Accounting Policies (Details) - USD ($) $ / shares in Units, $ in Millions		12 Months Ended
	Jun. 12, 2020	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020	Nov. 30, 2022
Significant Accounting Policies [Line Items]
Investment Income, Dividend		$ 5	$ 6	$ 9
Equity investments		$ 67	$ 30
Preferred Stock, Dividend Rate, Percentage	5.50%
Preferred shares, par value per share (USD per share)	$ 0.01	$ 0.01	$ 0.01
Research and Development expense		$ 1,120	$ 1,030	1,024
Accounts receivable, net		3,433	2,784
Allowance for Doubtful Accounts Receivable		52	37
Accounts Receivable, Credit Loss Expense (Reversal)		27	22	39
Reimbursable engineering costs		250	286
Property Plant & Equipment, net		3,495	3,294
Impairment of Intangible Assets (Excluding Goodwill)		0	0	0
Goodwill, Impairment Loss		0	0	0
Foreign Currency Transaction Gain (Loss), Net of Tax		(30)	0	$ (20)
Government Assistance, Amount		$ 20
Government Assistance, Statement of Income or Comprehensive Income [Extensible Enumeration]		Cost of sales
Intercable Automotive
Significant Accounting Policies [Line Items]
Business Acquisition, Percentage of Voting Interests Acquired					85.00%
Mutschlechner family | Intercable Automotive
Significant Accounting Policies [Line Items]
Noncontrolling Interest, Ownership Percentage by Noncontrolling Owners					15.00%
GM
Significant Accounting Policies [Line Items]
Accounts Receivable		$ 231	208
Stellantis
Significant Accounting Policies [Line Items]
Accounts Receivable		325	317
Ford
Significant Accounting Policies [Line Items]
Accounts Receivable		250	220
VW
Significant Accounting Policies [Line Items]
Accounts Receivable		$ 186	$ 163
Customer Concentration Risk | Total Net Sales | GM, Stellantis, Ford and VW
Significant Accounting Policies [Line Items]
Percentage of Total Net Sales		34.00%	35.00%	38.00%
Customer Concentration Risk | Total Net Sales | GM
Significant Accounting Policies [Line Items]
Percentage of Total Net Sales		9.00%	8.00%	9.00%
Customer Concentration Risk | Total Net Sales | Stellantis
Significant Accounting Policies [Line Items]
Percentage of Total Net Sales		9.00%	11.00%	12.00%
Customer Concentration Risk | Total Net Sales | Ford
Significant Accounting Policies [Line Items]
Percentage of Total Net Sales		8.00%	7.00%	7.00%
Customer Concentration Risk | Total Net Sales | VW
Significant Accounting Policies [Line Items]
Percentage of Total Net Sales		8.00%	9.00%	10.00%
Special Tools
Significant Accounting Policies [Line Items]
Property Plant & Equipment, net		$ 437	$ 405
Aptiv-Owned Special Tools
Significant Accounting Policies [Line Items]
Property Plant & Equipment, net		350	303
Customer-Owned Special Tools
Significant Accounting Policies [Line Items]
Property Plant & Equipment, net		87	102
Long-term assets
Significant Accounting Policies [Line Items]
Equity investments		67	30
Publicly traded equity securities		17	$ 66
Property, Plant and Equipment
Significant Accounting Policies [Line Items]
Government Assistance, Amount		$ 10
Weighted Average
Significant Accounting Policies [Line Items]
Government Assistance, Transaction Duration		5 years