Project-to-Date and Estimated Future Restructuring Costs (Detail) (USD $) In Millions, unless otherwise specified	12 Months Ended				27 Months Ended	39 Months Ended	12 Months Ended	27 Months Ended	39 Months Ended	12 Months Ended	27 Months Ended	39 Months Ended	12 Months Ended	27 Months Ended	39 Months Ended	12 Months Ended	27 Months Ended	39 Months Ended	12 Months Ended	27 Months Ended	39 Months Ended	12 Months Ended	27 Months Ended	39 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2012 LVD	Dec. 31, 2011 LVD	Dec. 31, 2012 LVD	Dec. 31, 2012 Power Technologies	Dec. 31, 2011 Power Technologies	Dec. 31, 2012 Power Technologies	Dec. 31, 2012 Commercial Vehicle	Dec. 31, 2011 Commercial Vehicle	Dec. 31, 2012 Commercial Vehicle	Dec. 31, 2012 Off-Highway	Dec. 31, 2011 Off-Highway	Dec. 31, 2012 Off-Highway	Dec. 31, 2012 Corporate and Other	Dec. 31, 2011 Corporate and Other	Dec. 31, 2012 Corporate and Other	Dec. 31, 2012 Segment, Discontinued Operations	Dec. 31, 2011 Segment, Discontinued Operations	Dec. 31, 2012 Segment, Discontinued Operations	Dec. 31, 2012 Total Restructuring Costs including Cost Associated with Discontinued Operations	Dec. 31, 2011 Total Restructuring Costs including Cost Associated with Discontinued Operations	Dec. 31, 2012 Total Restructuring Costs including Cost Associated with Discontinued Operations
Restructuring Cost and Reserve [Line Items]
Restructuring charges	$ 47	$ 82	$ 74	$ 10			$ 4			$ 25			$ 5			$ 3			$ 3			$ 50
Expense Recognized					23	33		12	16		22	47		8	13		6	9		2	5		73	123
Future Cost to Complete				$ 10			$ 2			$ 8			$ 1						$ 4			$ 25