Segment Information - Segment Revenue (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Disaggregation of Revenue [Line Items]
Net sales and operating revenues	$ 4,504	$ 2,533	$ 8,988	$ 5,114
Clean Air
Disaggregation of Revenue [Line Items]
Net sales and operating revenues	1,827	1,694	3,606	3,450
Powertrain
Disaggregation of Revenue [Line Items]
Net sales and operating revenues	1,133	0	2,308	0
Ride Performance
Disaggregation of Revenue [Line Items]
Net sales and operating revenues	709	506	1,442	1,019
Motorparts
Disaggregation of Revenue [Line Items]
Net sales and operating revenues	835	333	1,632	645
North America
Disaggregation of Revenue [Line Items]
Net sales and operating revenues	1,962	1,140	3,899	2,276
North America | Clean Air
Disaggregation of Revenue [Line Items]
Net sales and operating revenues	800	745	1,593	1,513
North America | Powertrain
Disaggregation of Revenue [Line Items]
Net sales and operating revenues	398	0	803	0
North America | Ride Performance
Disaggregation of Revenue [Line Items]
Net sales and operating revenues	228	185	460	365
North America | Motorparts
Disaggregation of Revenue [Line Items]
Net sales and operating revenues	536	210	1,043	398
Europe, Middle East and Africa
Disaggregation of Revenue [Line Items]
Net sales and operating revenues	1,739	940	3,570	1,930
Europe, Middle East and Africa | Clean Air
Disaggregation of Revenue [Line Items]
Net sales and operating revenues	609	623	1,250	1,280
Europe, Middle East and Africa | Powertrain
Disaggregation of Revenue [Line Items]
Net sales and operating revenues	540	0	1,115	0
Europe, Middle East and Africa | Ride Performance
Disaggregation of Revenue [Line Items]
Net sales and operating revenues	349	212	727	437
Europe, Middle East and Africa | Motorparts
Disaggregation of Revenue [Line Items]
Net sales and operating revenues	241	105	478	213
Rest of world
Disaggregation of Revenue [Line Items]
Net sales and operating revenues	803	453	1,519	908
Rest of world | Clean Air
Disaggregation of Revenue [Line Items]
Net sales and operating revenues	418	326	763	657
Rest of world | Powertrain
Disaggregation of Revenue [Line Items]
Net sales and operating revenues	195	0	390	0
Rest of world | Ride Performance
Disaggregation of Revenue [Line Items]
Net sales and operating revenues	132	109	255	217
Rest of world | Motorparts
Disaggregation of Revenue [Line Items]
Net sales and operating revenues	58	18	111	34
OE - Substrate
Disaggregation of Revenue [Line Items]
Net sales and operating revenues	777	621	1,483	1,273
OE - Substrate | Clean Air
Disaggregation of Revenue [Line Items]
Net sales and operating revenues	777	621	1,483	1,273
OE - Substrate | Powertrain
Disaggregation of Revenue [Line Items]
Net sales and operating revenues	0	0	0	0
OE - Substrate | Ride Performance
Disaggregation of Revenue [Line Items]
Net sales and operating revenues	0	0	0	0
OE - Substrate | Motorparts
Disaggregation of Revenue [Line Items]
Net sales and operating revenues	0	0	0	0
OE - Value add
Disaggregation of Revenue [Line Items]
Net sales and operating revenues	2,892	1,579	5,873	3,196
OE - Value add | Clean Air
Disaggregation of Revenue [Line Items]
Net sales and operating revenues	1,050	1,073	2,123	2,177
OE - Value add | Powertrain
Disaggregation of Revenue [Line Items]
Net sales and operating revenues	1,133	0	2,308	0
OE - Value add | Ride Performance
Disaggregation of Revenue [Line Items]
Net sales and operating revenues	709	506	1,442	1,019
OE - Value add | Motorparts
Disaggregation of Revenue [Line Items]
Net sales and operating revenues	0	0	0	0
Aftermarket
Disaggregation of Revenue [Line Items]
Net sales and operating revenues	835	333	1,632	645
Aftermarket | Clean Air
Disaggregation of Revenue [Line Items]
Net sales and operating revenues	0	0	0	0
Aftermarket | Powertrain
Disaggregation of Revenue [Line Items]
Net sales and operating revenues	0	0	0	0
Aftermarket | Ride Performance
Disaggregation of Revenue [Line Items]
Net sales and operating revenues	0	0	0	0
Aftermarket | Motorparts
Disaggregation of Revenue [Line Items]
Net sales and operating revenues	$ 835	$ 333	$ 1,632	$ 645