Earnings per Common Share (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Oct. 01, 2016	Sep. 30, 2017	Oct. 01, 2016
Earnings Per Share [Abstract]
Net Earnings from Continuing Operations	$ 79.0	$ 85.3	$ 263.3	$ 256.6
Earnings from Discontinued Operations, Net of Tax	0.0	0.1	0.0	1.7
Net Earnings	$ 79.0	$ 85.4	$ 263.3	$ 258.3
Weighted Average Outstanding Shares - Basic (in Shares)	89.1	91.1	89.7	91.5
Dilutive Effect of Common Stock Equivalents (in Shares)	0.7	0.8	0.8	0.9
Weighted Average Outstanding Shares - Diluted (in Shares)	89.8	91.9	90.5	92.4
Basic Earnings Per Common Share
Continuing Operations (in Dollars per Share)	$ 0.89	$ 0.94	$ 2.94	$ 2.80
Discontinued Operations (in Dollars per Share)	0.00	0.00	0.00	0.02
Net Earnings (in Dollars per Share)	0.89	0.94	2.94	2.82
Diluted Earnings Per Common Share
Continuing Operations (in Dollars per Share)	0.88	0.93	2.91	2.78
Discontinued Operations (in Dollars per Share)	0.00	0.00	0.00	0.02
Net Earnings (in Dollars per Share)	$ 0.88	$ 0.93	$ 2.91	$ 2.80
Anti-Dilutive Securities (in Shares)	0.0	0.0	0.0	0.0