Summary Of Significant Accounting Policies (Tables)

12 Months Ended

Dec. 25, 2011

Summary Of Significant Accounting Policies [Abstract]

Schedule Of Cash, Cash Equivalents And Other Securities

	December 25, 2011		December 26, 2010
		(In millions)
Cash and cash equivalents		423.3	$	404.6
Short-term marketable securities		0.2		0.1
Long-term securities		32.3		30.3
Total cash, cash equivalents and other securities		455.8	$	435.0

Schedule Of Computation Of Basic And Diluted Earnings Per Share

	Year Ended
	December 25, 2011		December 26, 2010		December 27, 2009
		(In millions, except per share data)
Basic:
Net income (loss)	$	145.5	$	153.2	$	(60.2	)
Weighted average shares outstanding		126.7		124.6		123.8
Net income (loss) per share	$	1.15	$	1.23	$	(0.49	)
Diluted:
Net income (loss)	$	145.5	$	153.2	$	(60.2	)
Basic weighted average shares outstanding		126.7		124.6		123.8
Assumed exercise of common stock equivalents		3.6		3.4		0.0
Diluted weighted-average common and common equivalent shares		130.3		128.0		123.8
Net income (loss) per share	$	1.12	$	1.20	$	(0.49	)
Anti-dilutive common stock equivalents, non-vested stock, DSUs, RSUs, and PUs		6.7		10.7		18.1