Shareholders' Equity and Comprehensive Earnings (Details) (USD $) In Millions, except Share data, unless otherwise specified	1 Months Ended							6 Months Ended
	May 31, 2012	Feb. 29, 2012	Jan. 31, 2012	Nov. 30, 2011	Oct. 31, 2011	Sep. 30, 2011	Aug. 31, 2011	Jul. 01, 2012	Feb. 03, 2012	Nov. 02, 2011	Aug. 05, 2011
Accumulated Other Comprehensive Earnings (Loss)
Balance at the beginning of the period			$ (335.2)					$ (335.2)
Change								(17.9)
Balance at the end of the period								(353.1)
Accelerated share repurchase agreement amount		200			100		125
Advance payment under agreement									200	100	125
Shares received (in shares)	334,039	4,584,819	361,615	2,523,836		526,532	3,077,976
Percentage of treasury stock acquired of total stock									90.00%	90.00%	90.00%
Shares received (in dollars per share)	$ 40.66		$ 34.66			$ 34.68
Foreign Currency Translation
Accumulated Other Comprehensive Earnings (Loss)
Balance at the beginning of the period			84.7					84.7
Change								(29.4)
Balance at the end of the period								55.3
Pension and Other Postretirement Items (Net of Tax)
Accumulated Other Comprehensive Earnings (Loss)
Balance at the beginning of the period			(381.5)					(381.5)
Change								14.5
Balance at the end of the period								(367.0)
Effective Derivatives (Net of Tax)
Accumulated Other Comprehensive Earnings (Loss)
Balance at the beginning of the period			(38.4)					(38.4)
Change								(3.0)
Balance at the end of the period								$ (41.4)