REVENUE (Details) - USD ($) $ in Millions	3 Months Ended								12 Months Ended
	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Disaggregation of Revenue [Line Items]
Unbilled Receivables, Not Billable at Balance Sheet Date, Description of Prerequisites for Billings	$ 2								$ 2
Net sales	$ 1,056	$ 1,033	$ 1,121	$ 1,151	$ 1,171	$ 1,159	$ 1,232	$ 1,296	4,361	$ 4,858	$ 4,849
Asia Pacific [Member]
Disaggregation of Revenue [Line Items]
Net sales									1,049	1,208	1,335
South America
Disaggregation of Revenue [Line Items]
Net sales									127	141	139
Europe [Member]
Disaggregation of Revenue [Line Items]
Net sales									1,953	2,142	2,030
North America [Member]
Disaggregation of Revenue [Line Items]
Net sales									1,232	1,367	1,345
Delphi Technologies FIS Segment [Member]
Disaggregation of Revenue [Line Items]
Net sales									1,590	1,689	1,581
Delphi Technologies PTP Segment [Member]
Disaggregation of Revenue [Line Items]
Net sales									1,135	1,246	1,279
Original Equipment Service [Member]
Disaggregation of Revenue [Line Items]
Net sales									238	236	326
Electrification & Electronics [Member]
Disaggregation of Revenue [Line Items]
Net sales									795	1,049	1,042
Independent Aftermarket [Member]
Disaggregation of Revenue [Line Items]
Net sales									$ 603	$ 638	$ 621