Consolidated Statement Of Shareholders' Equity - USD ($) $ in Millions	Total	Ordinary Shares	Additional Paid-In Capital	Retained Earnings	Accumulated Other Comprehensive Income (Loss)	Total Delphi Shareholders' Equity	Noncontrolling Interest
Balance at Dec. 31, 2014	$ 3,013	$ 3	$ 1,700	$ 1,548	$ (741)	$ 2,510	$ 503
Balance, shares at Dec. 31, 2014		291,000,000
Net income	1,535			1,450		1,450	85
Other comprehensive loss	(308)				(292)	(292)	(16)
Dividends on ordinary shares	(286)		4	(290)		(286)
Dividend payments of consolidated affiliates to minority shareholders	(89)						(89)
Taxes withheld on employees' restricted share award vestings	$ (59)		(59)			(59)
Repurchase of ordinary shares, shares	(14,581,705)	(15,000,000)
Repurchase of ordinary shares	$ (1,159)		(78)	(1,081)		(1,159)
Dividend received from spin-off of Delphi Technologies	0
Cash transferred from Delphi Technologies related to spin-off	0
Share-based compensation, in shares		2,000,000
Share-based compensation	75		75			75
Excess tax benefits on share-based compensation	11		11			11
Balance at Dec. 31, 2015	2,733	$ 3	1,653	1,627	(1,033)	2,250	483
Balance, shares at Dec. 31, 2015		278,000,000
Net income	1,326			1,257		1,257	69
Other comprehensive loss	(191)				(182)	(182)	(9)
Dividends on ordinary shares	(317)		3	(320)		(317)
Dividend payments of consolidated affiliates to minority shareholders	(80)						(80)
Taxes withheld on employees' restricted share award vestings	$ (40)		(40)			(40)
Repurchase of ordinary shares, shares	(9,481,946)	(10,000,000)
Repurchase of ordinary shares	$ (635)		(51)	(584)		(635)
Dividend received from spin-off of Delphi Technologies	0
Cash transferred from Delphi Technologies related to spin-off	0
Share-based compensation, in shares		2,000,000
Divestiture of business	(101)						(101)
Share-based compensation	68		68			68
Balance at Dec. 31, 2016	2,763	$ 3	1,633	1,980	(1,215)	2,401	362
Balance, shares at Dec. 31, 2016		270,000,000
Net income	1,428			1,355		1,355	73
Other comprehensive loss	341				331	331	10
Dividends on ordinary shares	(369)		4	(373)		(369)
Dividend payments of consolidated affiliates to minority shareholders	(67)						(67)
Taxes withheld on employees' restricted share award vestings	$ (33)		(33)			(33)
Repurchase of ordinary shares, shares	(4,667,193)	(5,000,000)
Repurchase of ordinary shares	$ (383)		(25)	(358)		(383)
Distribution of Delphi Technologies	(1,561)			(1,814)	413	(1,401)	(160)
Dividend received from spin-off of Delphi Technologies	1,148			1,148		1,148
Cash transferred from Delphi Technologies related to spin-off	180			180		180
Share-based compensation, in shares		1,000,000
Share-based compensation	70		70			70
Balance at Dec. 31, 2017	$ 3,517	$ 3	$ 1,649	$ 2,118	$ (471)	$ 3,299	$ 218
Balance, shares at Dec. 31, 2017		266,000,000