Segment Information - Segment Revenue (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Disaggregation of Revenue [Line Items]
Net sales and operating revenues	$ 4,319	$ 2,371	$ 13,307	$ 7,485
Clean Air
Disaggregation of Revenue [Line Items]
Net sales and operating revenues	1,772	1,602	5,378	5,052
Powertrain
Disaggregation of Revenue [Line Items]
Net sales and operating revenues	1,082	0	3,390	0
Ride Performance
Disaggregation of Revenue [Line Items]
Net sales and operating revenues	671	461	2,113	1,480
Motorparts
Disaggregation of Revenue [Line Items]
Net sales and operating revenues	794	308	2,426	953
North America
Disaggregation of Revenue [Line Items]
Net sales and operating revenues	1,883	1,111	5,782	3,387
North America | Clean Air
Disaggregation of Revenue [Line Items]
Net sales and operating revenues	759	735	2,352	2,248
North America | Powertrain
Disaggregation of Revenue [Line Items]
Net sales and operating revenues	386	0	1,189	0
North America | Ride Performance
Disaggregation of Revenue [Line Items]
Net sales and operating revenues	225	180	685	545
North America | Motorparts
Disaggregation of Revenue [Line Items]
Net sales and operating revenues	513	196	1,556	594
Europe, Middle East and Africa
Disaggregation of Revenue [Line Items]
Net sales and operating revenues	1,623	833	5,193	2,763
Europe, Middle East and Africa | Clean Air
Disaggregation of Revenue [Line Items]
Net sales and operating revenues	581	559	1,831	1,839
Europe, Middle East and Africa | Powertrain
Disaggregation of Revenue [Line Items]
Net sales and operating revenues	502	0	1,617	0
Europe, Middle East and Africa | Ride Performance
Disaggregation of Revenue [Line Items]
Net sales and operating revenues	311	177	1,038	614
Europe, Middle East and Africa | Motorparts
Disaggregation of Revenue [Line Items]
Net sales and operating revenues	229	97	707	310
Rest of world
Disaggregation of Revenue [Line Items]
Net sales and operating revenues	813	427	2,332	1,335
Rest of world | Clean Air
Disaggregation of Revenue [Line Items]
Net sales and operating revenues	432	308	1,195	965
Rest of world | Powertrain
Disaggregation of Revenue [Line Items]
Net sales and operating revenues	194	0	584	0
Rest of world | Ride Performance
Disaggregation of Revenue [Line Items]
Net sales and operating revenues	135	104	390	321
Rest of world | Motorparts
Disaggregation of Revenue [Line Items]
Net sales and operating revenues	52	15	163	49
OE - Substrate
Disaggregation of Revenue [Line Items]
Net sales and operating revenues	775	596	2,258	1,869
OE - Substrate | Clean Air
Disaggregation of Revenue [Line Items]
Net sales and operating revenues	775	596	2,258	1,869
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	2,750	1,467	8,623	4,663
OE - Value add | Clean Air
Disaggregation of Revenue [Line Items]
Net sales and operating revenues	997	1,006	3,120	3,183
OE - Value add | Powertrain
Disaggregation of Revenue [Line Items]
Net sales and operating revenues	1,082	0	3,390	0
OE - Value add | Ride Performance
Disaggregation of Revenue [Line Items]
Net sales and operating revenues	671	461	2,113	1,480
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	794	308	2,426	953
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	$ 794	$ 308	$ 2,426	$ 953