Segment and Geographic Area Information (Details 1) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2009
Revenues from External Customers by Products [Abstract]
Revenues from external customers	$ 7,205	$ 5,937	$ 4,649
Emission Control Systems and Products [Member]
Revenues from External Customers by Products [Abstract]
Revenues from external customers	4,761	3,825	2,919
Ride Control Systems and Products [Member]
Revenues from External Customers by Products [Abstract]
Revenues from external customers	2,444	2,112	1,730
Aftermarket [Member] | Emission Control Systems and Products [Member]
Revenues from External Customers by Products [Abstract]
Revenues from external customers	351	318	315
Aftermarket [Member] | Ride Control Systems and Products [Member]
Revenues from External Customers by Products [Abstract]
Revenues from external customers	944	851	721
Original Equipment [Member] | Emission Control Systems and Products [Member]
Revenues from External Customers by Products [Abstract]
Revenues from external customers	4,410	3,507	2,604
Original Equipment [Member] | Ride Control Systems and Products [Member]
Revenues from External Customers by Products [Abstract]
Revenues from external customers	1,500	1,261	1,009
Original Equipment [Member] | OE Substrate [Member] | Emission Control Systems and Products [Member]
Revenues from External Customers by Products [Abstract]
Revenues from external customers	1,678	1,284	966
Original Equipment [Member] | OE Value-add [Member] | Emission Control Systems and Products [Member]
Revenues from External Customers by Products [Abstract]
Revenues from external customers	$ 2,732	$ 2,223	$ 1,638