Earnings per Common Share (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	3 Months Ended		6 Months Ended
	Jul. 04, 2015	Jun. 28, 2014	Jul. 04, 2015	Jun. 28, 2014
Earnings Per Share [Abstract]
Net earnings from continuing operations	$ 107.6	$ 87.1	$ 164.2	$ 136.2
Net earnings from discontinued operations, net of tax	10.2	1.5	10.6	9.4
Net earnings	$ 117.8	$ 88.6	$ 174.8	$ 145.6
Weighted average outstanding shares - basic (in shares)	93.3	93.5	93.6	93.4
Dilutive effect of common stock equivalents (in shares)	1.3	1.6	1.2	1.6
Weighted average outstanding shares - diluted (in shares)	94.6	95.1	94.8	95.0
Basic earnings per common share
Continuing operations (in dollars per share)	$ 1.15	$ 0.93	$ 1.76	$ 1.46
Discontinued operations (in dollars per share)	0.11	0.02	0.11	0.10
Net earnings (in dollars per share)	1.26	0.95	1.87	1.56
Diluted earnings per common share
Continuing operations (in dollars per share)	1.14	0.92	1.73	1.43
Discontinued operations (in dollars per share)	0.11	0.01	0.11	0.10
Net earnings (in dollars per share)	$ 1.25	$ 0.93	$ 1.84	$ 1.53
Outstanding options (in shares)	2.3	3.4	2.3	3.4
Exercisable outstanding options (in shares)	2.2	2.9	2.2	2.9
Anti-dilutive securities (in shares)	0.0	0.3	0.0	0.3