Changes in Accumulated Other Comprehensive Income (Loss) (Details) - USD ($) $ in Millions		12 Months Ended
		Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Accumulated other comprehensive income (loss), beginning of period		$ (1,215)	$ (1,033)
Accumulated other comprehensive income (loss), end of period		(471)	(1,215)	$ (1,033)
Spin-Off of Delphi Technologies		(1,561)
Mechatronics Business
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Reclassification Adjustment from AOCI, Realized upon Sale or Liquidation, net of tax		(29)
Designated as Hedging Instrument | Net Investment Hedging
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Gain (loss) on Net Investment Hedge, net of tax		(177)	67	(5)
Foreign currency translation adjustments
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Accumulated other comprehensive income (loss), beginning of period		(799)	(661)	(333)
Aggregate adjustment for the year	[1]	305	(138)	(328)
Accumulated other comprehensive income (loss), end of period		(369)	(799)	(661)
Spin-Off of Delphi Technologies		125
Unrealized gains (losses) on derivatives
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Accumulated other comprehensive income (loss), beginning of period		(11)	(106)	(78)
Other comprehensive income before reclassifications (net of tax effect)		14	(1)	(118)
Reclassification to income (net of tax effect)		1	96	90
Accumulated other comprehensive income (loss), end of period		4	(11)	(106)
Net tax effect of Other comprehensive income before reclassifications		23	23	30
Net tax effect of Reclassification Adjustment from AOCI on Derivatives		30	30	28
Pension and postretirement plans
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Accumulated other comprehensive income (loss), beginning of period		(405)	(266)	(330)
Other comprehensive income before reclassifications (net of tax effect)		(19)	(150)	41
Reclassification to income (net of tax effect)		30	11	23
Accumulated other comprehensive income (loss), end of period		(106)	(405)	(266)
Net tax effect of Other comprehensive income before reclassifications		32	32	5
Net tax effect of Reclassification Adjustment from AOCI, Pension and Other Postretirement Plans		1	$ 1	$ 3
Spin-Off of Delphi Technologies		$ 288

[1] Includes (losses) gains of $(177) million, $67 million and $(5) million for the years ended December 31, 2017, 2016 and 2015, respectively, related to non-derivative net investment hedges, principally offset by the foreign currency impact of intra-entity loans that are of a long-term investment nature in each period. Refer to Note 17. Derivatives and Hedging Activities for further description of the Company's net investment hedges. The year ended December 31, 2016 also includes $29 million of accumulated currency translation adjustment losses reclassified to net income as a result of the sale of the Company's Mechatronics business, as further described in Note 20. Acquisitions and Divestitures.