Equity (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	3 Months Ended		9 Months Ended
	Sep. 27, 2018	Sep. 28, 2017	Sep. 27, 2018	Sep. 28, 2017	Dec. 31, 2017
Derivatives, Fair Value [Line Items]
Common Stock, Dividends, Per Share, Declared	$ 0.12	$ 0.10	$ 0.34	$ 0.30
Accumulated Other Comprehensive Income (Loss), Net of Tax	$ (145.0)		$ (145.0)		$ (128.5)
Basic EPS
Income available to common shareholders	$ 168.7	$ 147.1	$ 439.1	$ 231.9
Income available to common shareholders, shares	105.1	115.8	109.3	117.8
Income available to common shareholders, per share amount	$ 1.61	$ 1.27	$ 4.02	$ 1.97
Income allocated to participating securities	$ 0.1	$ 0.1	$ 0.3	$ 0.2
Income allocated to participating securities, shares	0.1	0.1	0.1	0.1
Net income	$ 168.8	$ 147.2	$ 439.4	$ 232.1
Diluted potential common shares	0.9	1.1	0.9	1.1
Diluted EPS
Net income	$ 168.8	$ 147.2	$ 439.4	$ 232.1
Shares	106.1	117.0	110.3	119.0
Diluted (in dollars per share)	$ 1.59	$ 1.26	$ 3.98	$ 1.95
Equity Textuals [Abstract]
Common shares outstanding issued but unvested	1.4	1.5	1.4	1.5
Noncontrolling interest	$ 0.5		$ 0.5		0.5
Pension [Member]
Derivatives, Fair Value [Line Items]
Accumulated Other Comprehensive Income (Loss), Net of Tax	(76.0)		(76.0)		(75.9)
SERP and Retiree medical [Member]
Derivatives, Fair Value [Line Items]
Accumulated Other Comprehensive Income (Loss), Net of Tax	16.0		16.0		17.7
Foreign currency impact on long term intercompany loan [Member]
Derivatives, Fair Value [Line Items]
Accumulated Other Comprehensive Income (Loss), Net of Tax	(15.5)		(15.5)		(14.2)
Currency translation adjustment [Member]
Derivatives, Fair Value [Line Items]
Accumulated Other Comprehensive Income (Loss), Net of Tax	$ (69.5)		(69.5)		$ (56.1)
Accelerated Share Repurchase Program [Member]
Derivatives, Fair Value [Line Items]
Treasury Stock, Value, Acquired, Cost Method			$ 725.0