Segment and Geographic Area Information - Revenue from External Customers (Details) - USD ($) $ in Millions	3 Months Ended								12 Months Ended
	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2017	Sep. 30, 2017	Jun. 30, 2017	Mar. 31, 2017	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Segment Reporting [Line Items]
Net sales and operating revenues	$ 4,278	$ 2,371	$ 2,533	$ 2,581	$ 2,389	$ 2,273	$ 2,314	$ 2,298	$ 11,763	$ 9,274	$ 8,597
OE Value-add
Segment Reporting [Line Items]
Net sales and operating revenues									2,500	2,187	2,028
OE Substrate
Segment Reporting [Line Items]
Revenue recognized									2,500	2,187	2,028
Net sales and operating revenues									7,268	5,836	5,329
Aftermarket
Segment Reporting [Line Items]
Net sales and operating revenues									1,995	1,251	1,240
Powertrain
Segment Reporting [Line Items]
Net sales and operating revenues									1,112	0	0
Powertrain | OE Value-add
Segment Reporting [Line Items]
Net sales and operating revenues									0	0	0
Powertrain | OE Substrate
Segment Reporting [Line Items]
Net sales and operating revenues									1,112	0	0
Powertrain | Aftermarket
Segment Reporting [Line Items]
Net sales and operating revenues									0	0	0
Clean Air
Segment Reporting [Line Items]
Net sales and operating revenues									6,707	6,216	5,764
Clean Air | OE Value-add
Segment Reporting [Line Items]
Net sales and operating revenues									2,500	2,187	2,028
Clean Air | OE Substrate
Segment Reporting [Line Items]
Net sales and operating revenues									4,207	4,029	3,736
Clean Air | Aftermarket
Segment Reporting [Line Items]
Net sales and operating revenues									0	0	0
Ride Performance
Segment Reporting [Line Items]
Net sales and operating revenues									1,949	1,807	1,593
Ride Performance | OE Value-add
Segment Reporting [Line Items]
Net sales and operating revenues									0	0	0
Ride Performance | OE Substrate
Segment Reporting [Line Items]
Net sales and operating revenues									1,949	1,807	1,593
Ride Performance | Aftermarket
Segment Reporting [Line Items]
Net sales and operating revenues									0	0	0
Aftermarket
Segment Reporting [Line Items]
Net sales and operating revenues									1,221	1,251	1,240
Aftermarket | OE Value-add
Segment Reporting [Line Items]
Net sales and operating revenues									0	0	0
Aftermarket | OE Substrate
Segment Reporting [Line Items]
Net sales and operating revenues									0	0	0
Aftermarket | Aftermarket
Segment Reporting [Line Items]
Net sales and operating revenues									1,221	1,251	1,240
Motorparts
Segment Reporting [Line Items]
Net sales and operating revenues									774	0	0
Motorparts | OE Value-add
Segment Reporting [Line Items]
Net sales and operating revenues									0	0	0
Motorparts | OE Substrate
Segment Reporting [Line Items]
Net sales and operating revenues									0	0	0
Motorparts | Aftermarket
Segment Reporting [Line Items]
Net sales and operating revenues									774	0	0
North America
Segment Reporting [Line Items]
Net sales and operating revenues									5,254	4,326	4,237
North America | Powertrain
Segment Reporting [Line Items]
Net sales and operating revenues									386	0	0
North America | Clean Air
Segment Reporting [Line Items]
Net sales and operating revenues									2,981	2,866	2,767
North America | Ride Performance
Segment Reporting [Line Items]
Net sales and operating revenues									721	674	652
North America | Aftermarket
Segment Reporting [Line Items]
Net sales and operating revenues									758	786	818
North America | Motorparts
Segment Reporting [Line Items]
Net sales and operating revenues									408	0	0
EMEA
Segment Reporting [Line Items]
Net sales and operating revenues									4,403	3,283	2,846
EMEA | Powertrain
Segment Reporting [Line Items]
Net sales and operating revenues									498	0	0
EMEA | Clean Air
Segment Reporting [Line Items]
Net sales and operating revenues									2,415	2,143	1,872
EMEA | Ride Performance
Segment Reporting [Line Items]
Net sales and operating revenues									801	736	604
EMEA | Aftermarket
Segment Reporting [Line Items]
Net sales and operating revenues									399	404	370
EMEA | Motorparts
Segment Reporting [Line Items]
Net sales and operating revenues									290	0	0
ROW
Segment Reporting [Line Items]
Net sales and operating revenues									2,106	1,665	1,514
ROW | Powertrain
Segment Reporting [Line Items]
Net sales and operating revenues									228	0	0
ROW | Clean Air
Segment Reporting [Line Items]
Net sales and operating revenues									1,311	1,207	1,125
ROW | Ride Performance
Segment Reporting [Line Items]
Net sales and operating revenues									427	397	337
ROW | Aftermarket
Segment Reporting [Line Items]
Net sales and operating revenues									64	61	52
ROW | Motorparts
Segment Reporting [Line Items]
Net sales and operating revenues									$ 76	$ 0	$ 0