Net Income Per Share (Details) (USD $) In Millions, except Share data, unless otherwise specified	3 Months Ended		6 Months Ended
	Dec. 30, 2011	Dec. 31, 2010	Dec. 30, 2011	Dec. 31, 2010
Net Income Per Share
Net income	$ 133.1	$ 151.1	$ 254.7	$ 315.0
Adjustments for participating securities outstanding	(1.9)	(1.9)	(3.3)	(3.9)
Net income used in basic and diluted common share calculations (A)	$ 131.2	$ 149.2	$ 251.4	$ 311.1
Basic weighted average common shares outstanding (B)	112,400,000	125,900,000	116,100,000	126,300,000
Impact of dilutive stock options	400,000	900,000	400,000	1,000,000
Diluted weighted average common shares outstanding (C)	112,800,000	126,800,000	116,500,000	127,300,000
Net income per basic share (A)/(B)	$ 1.17	$ 1.19	$ 2.17	$ 2.46
Net income per diluted share (A)/(C)	$ 1.16	$ 1.18	$ 2.16	$ 2.44
Net Income Per Share (Textuals)
Outstanding antidilutive employee stock options			5,227,907	3,160,928