Revenue - Segment Revenue (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Disaggregation of Revenue [Line Items]
Net sales and operating revenues	$ 2,372	$ 2,274	$ 7,483	$ 6,883
Substrate Sales
Disaggregation of Revenue [Line Items]
Net sales and operating revenues	596	$ 522	1,869	$ 1,610
Value-Add Revenues
Disaggregation of Revenue [Line Items]
Net sales and operating revenues	1,776		5,614
Clean Air Division | Substrate Sales
Disaggregation of Revenue [Line Items]
Net sales and operating revenues	596		1,869
Clean Air Division | Value-Add Revenues
Disaggregation of Revenue [Line Items]
Net sales and operating revenues	1,006		3,183
Ride Performance Division | Substrate Sales
Disaggregation of Revenue [Line Items]
Net sales and operating revenues	0		0
Ride Performance Division | Value-Add Revenues
Disaggregation of Revenue [Line Items]
Net sales and operating revenues	461		1,480
Aftermarket | Substrate Sales
Disaggregation of Revenue [Line Items]
Net sales and operating revenues	0		0
Aftermarket | Value-Add Revenues
Disaggregation of Revenue [Line Items]
Net sales and operating revenues	$ 309		$ 951