Summary of Segment Financial Information (Detail) (USD $) In Millions, unless otherwise specified	3 Months Ended				6 Months Ended
	Jun. 29, 2013		Jun. 30, 2012		Jun. 29, 2013		Jun. 30, 2012		Dec. 31, 2012
Segment Reporting Information [Line Items]
Revenues from external customers	$ 4,113.1		$ 3,665.0		$ 8,060.2		$ 7,309.0
Segment earnings	201.2	[1]	190.0	[1]	375.4	[1]	376.8	[1]
Depreciation and amortization	69.0		56.6		135.4		110.3
Capital expenditures	127.7		110.1		226.4		180.4
Total assets	8,166.8	[2]	7,503.6		8,166.8	[2]	7,503.6		8,194.1
Seating
Segment Reporting Information [Line Items]
Revenues from external customers	3,069.2		2,793.4		5,980.9		5,607.2
Segment earnings	166.5	[1]	183.6	[1]	307.9	[1]	369.4	[1]
Depreciation and amortization	44.1		35.7		86.7		69.2
Capital expenditures	80.1		60.3		147.6		102.7
Total assets	4,754.7		4,439.2		4,754.7		4,439.2
EPMS
Segment Reporting Information [Line Items]
Revenues from external customers	1,043.9		871.6		2,079.3		1,701.8
Segment earnings	94.9	[1]	58.6	[1]	183.9	[1]	111.2	[1]
Depreciation and amortization	23.1		18.7		45.0		36.9
Capital expenditures	43.2		47.8		73.5		73.2
Total assets	1,594.8		1,427.7		1,594.8		1,427.7
Corporate and regional headquarters and elimination of intercompany activity ("Other")
Segment Reporting Information [Line Items]
Segment earnings	(60.2)	[1]	(52.2)	[1]	(116.4)	[1]	(103.8)	[1]
Depreciation and amortization	1.8		2.2		3.7		4.2
Capital expenditures	4.4		2.0		5.3		4.5
Total assets	$ 1,817.3		$ 1,636.7		$ 1,817.3		$ 1,636.7

[1] See definition above.

[2] Unaudited.