Earnings (Loss) Per Common Share (Reconciliation Of The Numerator And Denominator Of Earnings (Loss) Per Common Share) (Details) (USD $) In Millions, except Per Share data, unless otherwise specified	3 Months Ended
	Mar. 28, 2014		Mar. 29, 2013
Earnings Per Share [Abstract]
Net income for basic EPS computation	$ (315.4)		$ (45.8)
Less: Net income allocated to participating securities	0	[1]	0	[1]
Net income (loss) for basic EPS computations	(315.4)	[2]	(45.8)	[2]
Weighted average shares outstanding for basic EPS computation	49.1		49.7
Earnings per common share - basic	$ (6.42)	[3]	$ (0.92)	[3]
Add: preferred stock dividends, if applicable	0		0
Net income for diluted EPS computation	$ (315.4)	[2]	$ (45.8)	[2]
Weighted average shares outstanding including nonvested shares	49.1		49.7
Weighted average shares outstanding for diluted EPS computation	49.1	[4]	49.7	[4]
Earnings per common share - assuming dilution	$ (6.42)		$ (0.92)

[1] Outstanding unvested share-based payment awards that contain rights to non-forfeitable dividends are considered participating securities in undistributed earnings in the calculation above; however, the effect rounded to $0.0 million in the three months ended March 28, 2014 and March 29, 2013.

[2] Numerator

[3] Under the two-class method, earnings (loss) per share – basic reflects undistributed earnings per share for both common stock and unvested share-based payment awards (restricted stock).

[4] Denominator