Summary of Revenues from External Customers and Other Financial Information (Detail) (USD $) In Millions	3 Months Ended				9 Months Ended
	Oct. 01, 2011		Oct. 02, 2010		Oct. 01, 2011		Oct. 02, 2010		Dec. 31, 2010
Segment Reporting Information [Line Items]
Revenues from external customers	$ 3,460.0		$ 2,820.3		$ 10,648.0		$ 8,798.1
Segment earnings	158.5	[1]	118.8	[1]	577.8	[1]	412.4	[1]
Depreciation and amortization	63.5		58.7		189.3		174.3
Capital expenditures	91.5		38.9		247.7		115.3
Total assets	7,215.9	[2]	6,636.3		7,215.9	[2]	6,636.3		6,621.1
Seating
Segment Reporting Information [Line Items]
Revenues from external customers	2,687.8		2,208.7		8,272.7		6,929.7
Segment earnings	169.9	[1]	139.8	[1]	601.8	[1]	496.7	[1]
Depreciation and amortization	36.6		36.2		111.7		107.6
Capital expenditures	56.1		24.1		135.5		71.1
Total assets	3,919.4		3,633.3		3,919.4		3,633.3
EPMS
Segment Reporting Information [Line Items]
Revenues from external customers	772.2		611.6		2,375.3		1,868.4
Segment earnings	40.6	[1]	24.3	[1]	133.2	[1]	73.4	[1]
Depreciation and amortization	25.0		20.9		72.1		62.1
Capital expenditures	33.7		13.4		107.9		40.0
Total assets	1,313.5		1,098.1		1,313.5		1,098.1
Other
Segment Reporting Information [Line Items]
Segment earnings	(52.0)	[1]	(45.3)	[1]	(157.2)	[1]	(157.7)	[1]
Depreciation and amortization	1.9		1.6		5.5		4.6
Capital expenditures	1.7		1.4		4.3		4.2
Total assets	$ 1,983.0		$ 1,904.9		$ 1,983.0		$ 1,904.9

[1] See definition above.

[2] Unaudited.