Condensed Consolidated Statements of Comprehensive Income (Unaudited) (USD $) In Millions, except Per Share data, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 29, 2013	Jun. 30, 2012	Jun. 29, 2013	Jun. 30, 2012
Net sales	$ 4,113.1	$ 3,665.0	$ 8,060.2	$ 7,309.0
Cost of sales	3,775.4	3,350.4	7,410.1	6,684.6
Selling, general and administrative expenses	127.9	117.3	257.5	233.4
Amortization of intangible assets	8.6	7.3	17.2	14.2
Interest expense	17.4	14.0	34.1	26.5
Other expense, net	10.3	10.2	21.0	10.5
Consolidated income before provision for income taxes and equity in net income of affiliates	173.5	165.8	320.3	339.8
Provision for income taxes	41.1	31.8	79.0	71.1
Equity in net income of affiliates	(9.9)	(20.6)	(17.9)	(30.3)
Consolidated net income	142.3	154.6	259.2	299.0
Less: Net income attributable to noncontrolling interests	5.0	9.2	13.4	19.5
Net income attributable to Lear	137.3	145.4	245.8	279.5
Basic net income per share attributable to Lear	$ 1.62	$ 1.47	$ 2.74	$ 2.80
Diluted net income per share attributable to Lear	$ 1.60	$ 1.45	$ 2.71	$ 2.76
Consolidated comprehensive income (Note 12)	113.7	75.0	208.4	286.8
Less: Comprehensive income attributable to noncontrolling interests	5.3	7.8	14.1	18.6
Comprehensive income attributable to Lear	$ 108.4	$ 67.2	$ 194.3	$ 268.2