Stockholders' Equity (Details) (USD $)	12 Months Ended		0 Months Ended		1 Months Ended		12 Months Ended	0 Months Ended
	Sep. 29, 2012	Sep. 24, 2011	Jul. 30, 2012 Common stock	May 11, 2011 Common stock	May 30, 2010 Common stock	Apr. 30, 2010 Common stock	Sep. 29, 2012 Common stock	May 11, 2011 Common stock Underwriters	May 11, 2011 Common stock Lavazza	Sep. 28, 2010 Common stock Lavazza
Stockholders' equity
Issuance of common stock for public equity offering (in shares)				9,479,544				1,290,000	608,342	8,566,649
Common stock, par value (in dollars per share)	$ 0.10	$ 0.10		$ 0.10						$ 0.10
Common stock issue price (in dollars per share)				$ 71					$ 68.34
Proceeds from issuance of common stock for private placement		$ 291,096,000								$ 250,000,000
Financing costs in connection with public equity offering		25,685,000								500,000
Standstill period										5 years 6 months
Period after which standstill is subject to additional exceptions										1 year
Amount authorized for stock repurchase program			500,000,000
Period of stock repurchase program			2 years
Number of shares acquired							3,120,700
Average price per share of acquired shares (in dollars per share)							$ 24.50
Total cost of acquired shares	76,470,000		500,000,000				76,470,000
Additional shares to purchase as a percent of outstanding shares										15.00%
Proceeds from issuance of common stock for public equity offering		$ 673,048,000		$ 688,900,000
Stock split ratio						3
Additional shares distributed for stock split per one share issued					2