Consolidated Statements Of Operations - USD ($) shares in Thousands, $ in Millions	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Income Statement [Abstract]
Net sales	$ 945	$ 1,151
Operating expenses:
Cost of sales	824	983
Selling, general and administrative	95	104
Amortization	3	6
Restructuring	43	3
Total operating expenses	965	1,096
Operating (Loss) income	(20)	55
Interest expense	(16)	(18)
Other income (expense), net	2	(12)
(Loss) income before income taxes and equity income	(34)	25
Income tax expense	(20)	(8)
(Loss) income before equity income	(54)	17
Equity income, net of tax	0	2
Net (loss) income	(54)	19
Net income attributable to noncontrolling interest	3	3
Net (loss) income attributable to Delphi Technologies	$ (57)	$ 16
Net income per share attributable to Delphi Technologies:
Basic (in dollars per share)	$ (0.66)	$ 0.18
Diluted (in dollars per share)	$ (0.66)	$ 0.18
Weighted Average Number of Shares Outstanding [Abstract]
Basic (in shares)	86,170	88,450
Diluted (in shares)	86,280	88,550
Cash dividends declared per share	$ 0	$ 0