Quarterly Financial Data (unaudited) (Tables)

12 Months Ended

Dec. 31, 2016

Quarterly Financial Information Disclosure [Abstract]

Quarterly Financial Data

(In millions, except per share data)

	Thirteen Weeks Ended
	April 2, 2016		July 2, 2016		October 1, 2016		December 31, 2016
Net sales	$	4,662.9	$	4,724.8	$	4,526.4	$	4,643.5
Gross profit	535.7		540.4		513.9		512.1
Consolidated net income	262.5		294.5		235.0		248.5
Net income attributable to Lear	248.4		282.4		214.4		229.9
Basic net income per share attributable to Lear	3.33		3.85		3.01		3.28
Diluted net income per share attributable to Lear	3.29		3.82		2.98		3.24

	Thirteen Weeks Ended
	March 28, 2015		June 27, 2015		September 26, 2015		December 31, 2015
Net sales	$	4,521.4	$	4,635.1	$	4,330.3	$	4,724.6
Gross profit	425.7		450.2		453.2		490.7
Consolidated net income	156.7		192.9		193.3		252.9
Net income attributable to Lear	147.3		181.9		181.0		235.3
Basic net income per share attributable to Lear	1.88		2.35		2.37		3.13
Diluted net income per share attributable to Lear	1.86		2.33		2.34		3.07