Acquisitions - Purchase Price Allocation (Details) - USD ($) $ in Millions							1 Months Ended	3 Months Ended	12 Months Ended
	Jun. 06, 2019	Feb. 28, 2019	Jan. 11, 2019	Jun. 22, 2018	Mar. 01, 2017	Feb. 01, 2017	Dec. 31, 2017	Sep. 30, 2017	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Business Acquisition [Line Items]
Purchase consideration paid at closing									$ 668	$ 153	$ 185
Goodwill							$ 127		$ 493	$ 264	$ 127
Prestolite E-Propulsion Systems Limited (PEPS) [Member]
Business Acquisition [Line Items]
Purchase consideration paid at closing	$ 50
Business Combination, Consideration Transferred, Other	45
Total purchase consideration	95
Business Combination, Cash and cash equivalents	2
Business Combination, Accounts receivable - Trade	17
Business Combination, Inventories	9
Goodwill	63
Business Combination, Intangibles	10
Business Combination, Property, plant and equipment	2
Business Combination, Accounts payable	(4)
Business Combination, Other accrued liabilities	(3)
Business Combination, Other noncurrent liabilities	(1)
Business Combination, Total purchase consideration allocation	$ 95
ODS [Member]
Business Acquisition [Line Items]
Purchase consideration paid at closing		$ 626
Business Combination, Purchase Price Adjustments		(11)
Total purchase consideration		615
Business Combination, Cash and cash equivalents		76
Business Combination, Accounts receivable - Trade		150
Business Combination, Accounts receivable - Other		15
Business Combination, Inventories		190
Business Combination, Other current assets		16
Goodwill		92
Business Combination, Intangibles		58
Business Combination, Deferred tax assets		27
Business Combination, Other noncurrent assets		1
Business Combination, Investment In affiliates		7
Business Combination, Operating lease assets		4
Business Combination, Property, plant and equipment		333
Business Combination, Notes payable including current portion of long-term debt		(2)
Business Combination, Accounts payable		(151)
Business Combination, Accrued payroll and employee benefits		(37)
Business Combination, Current portion of operating lease liabilities		(1)
Business Combination, Taxes on income		(5)
Business Combination, Other accrued liabilities		(61)
Business Combination, Long-term debt		(8)
Business Combination, Pension and postretirement obligations		(49)
Business Combination, Noncurrent operating lease liabilities		(2)
Business Combination, Other noncurrent liabilities		(30)
Business Combination, Noncontrolling interests		(8)
Business Combination, Total purchase consideration allocation		$ 615
SME [Member]
Business Acquisition [Line Items]
Purchase consideration paid at closing			$ 62
Total purchase consideration			88
Business Combination, Accounts receivable - Trade			4
Business Combination, Accounts receivable - Other			1
Business Combination, Inventories			8
Goodwill			68
Business Combination, Intangibles			24
Business Combination, Property, plant and equipment			5
Business Combination, Notes payable including current portion of long-term debt			(8)
Business Combination, Accounts payable			(6)
Business Combination, Accrued payroll and employee benefits			(1)
Business Combination, Other accrued liabilities			(1)
Business Combination, Other noncurrent liabilities			(6)
Business Combination, Total purchase consideration allocation			$ 88
TM4 [Member]
Business Acquisition [Line Items]
Purchase consideration paid at closing				$ 125
Total purchase consideration				125
Business Combination, Cash and cash equivalents				3
Business Combination, Accounts receivable - Trade				3
Business Combination, Accounts receivable - Other				1
Business Combination, Inventories				4
Goodwill				148
Business Combination, Intangibles				24
Business Combination, Investment In affiliates				49
Business Combination, Property, plant and equipment				5
Business Combination, Accounts payable				(2)
Business Combination, Accrued payroll and employee benefits				(1)
Business Combination, Other accrued liabilities				(7)
Business Combination, Redeemable noncontrolling interest				(102)
Business Combination, Total purchase consideration allocation				$ 125
USM - Warren [Member]
Business Acquisition [Line Items]
Business Combination, Purchase Price Adjustments								$ 1
Total purchase consideration					$ 78
Business Combination, Accounts receivable - Trade					17
Business Combination, Accounts receivable - Other					3
Business Combination, Inventories					9
Goodwill					3
Business Combination, Intangibles					33
Business Combination, Property, plant and equipment					50
Business Combination, Accounts payable					(34)
Business Combination, Accrued payroll and employee benefits					(2)
Business Combination, Other accrued liabilities					(1)
Business Combination, Total purchase consideration allocation					$ 78
BFP and BPT [Member]
Business Acquisition [Line Items]
Purchase consideration paid at closing						$ 181
Business Combination, Purchase Price Adjustments							$ 9
Total purchase consideration						201
Business Combination, Cash and cash equivalents						75
Business Combination, Accounts receivable - Trade						78
Business Combination, Accounts receivable - Other						18
Business Combination, Inventories						134
Business Combination, Other current assets						9
Goodwill						20
Business Combination, Intangibles						41
Business Combination, Deferred tax assets						3
Business Combination, Other noncurrent assets						4
Business Combination, Property, plant and equipment						174
Business Combination, Notes payable including current portion of long-term debt						(130)
Business Combination, Accounts payable						(51)
Business Combination, Accrued payroll and employee benefits						(14)
Business Combination, Taxes on income						(1)
Business Combination, Other accrued liabilities						(19)
Business Combination, Long-term debt						(51)
Business Combination, Pension and postretirement obligations						(11)
Business Combination, Other noncurrent liabilities						(22)
Business Combination, Redeemable noncontrolling interest						(44)
Business Combination, Noncontrolling interests						(12)
Business Combination, Total purchase consideration allocation						$ 201