SEGMENT REPORTING Segment Assets (Details) - USD ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018
Segment Reporting Information [Line Items]
Investments in affiliates	$ 42	$ 44
Goodwill	7	7
Assets	3,747	3,893
Operating segments \| Delphi Technologies FIS Segment [Member]
Segment Reporting Information [Line Items]
Investments in affiliates	42	44
Goodwill	0	0
Assets	3,596	3,745
Operating segments \| Delphi Technologies PTP Segment [Member]
Segment Reporting Information [Line Items]
Investments in affiliates	0	0
Goodwill	0	0
Assets	1,092	1,032
Operating segments \| Delphi Technologies E&E Segment [Member]
Segment Reporting Information [Line Items]
Investments in affiliates	0	0
Goodwill	0	0
Assets	743	934
Operating segments \| Delphi Technologies Aftermarket Segment [Member]
Segment Reporting Information [Line Items]
Investments in affiliates	0	0
Goodwill	7	7
Assets	1,161	1,025
Eliminations and other
Segment Reporting Information [Line Items]
Investments in affiliates	0	0
Goodwill	0	0
Assets	$ (2,845)	$ (2,843)

Long-Term advances receivable from a party that is affiliated with the reporting entity by means of direct or indirect ownership. This does not include advances to clients.

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