Consolidated Statements of Income - Segments [Domain] - Products and Services [Domain] - USD ($) shares in Millions, $ in Millions	3 Months Ended		6 Months Ended
	Jun. 27, 2015	Jun. 28, 2014	Jun. 27, 2015		Jun. 28, 2014
Net sales	$ 588.9	$ 674.3	$ 1,170.7		$ 1,337.5
Cost of products sold	189.1	225.7	380.7		447.3
Gross margin	399.8	448.6	790.0		890.2
Delivery, sales and administrative expense	310.1	348.6	623.5		693.1
Re-engineering and impairment charges	1.5	3.4	17.7	[1]	5.7	[1]
Gains on disposal of assets	10.8	0.5	11.4		2.3
Operating income	99.0	97.1	160.2		193.7
Interest income	0.5	0.5	1.0		1.2
Interest expense	12.0	11.6	25.3		24.0
Other expense	1.1	16.0	8.3		30.1
Income before income taxes	86.4	70.0	127.6		140.8
Provision for income taxes	24.4	22.4	36.1		41.0
Net income	$ 62.0	$ 47.6	$ 91.5		$ 99.8
Earnings per share:
Basic	$ 1.24	$ 0.95	$ 1.84		$ 1.99
Diluted	$ 1.23	$ 0.93	$ 1.82		$ 1.95
Weighted-average shares outstanding:
Basic	49.8	50.2	49.8		50.2
Diluted	50.4	51.1	50.3		51.1
Dividends declared per common share	$ 0.68	$ 0.68	$ 1.36		$ 1.36

[1] (a)See Note 7 to the unaudited Consolidated Financial Statements for a discussion of re-engineering and impairment charges.