Net Income (Loss) Per Share (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended
	Apr. 03, 2016	Mar. 29, 2015	Jun. 28, 2015	Dec. 28, 2014	Feb. 28, 2012
Net Income (Loss) Available to Common Stockholders, Diluted [Abstract]
Net income (loss) attributable to stockholders	$ (85,409)	$ (9,581)
Basic weighted-average common shares (in shares)	137,203,000	132,033,000
Basic (in dollars per share)	$ (0.62)	$ (0.07)
Net income (loss) available to common stockholders	$ (85,409)	$ (9,581)
Weighted Average Number of Shares Outstanding, Diluted [Abstract]
Diluted weighted-average common shares	(137,203,000)	(132,033,000)
Dilutive net income (loss) per share	$ (0.62)	$ (0.07)
4.00% debentures due 2023 [Member] [Member]
Weighted Average Number of Shares Outstanding, Diluted [Abstract]
Outstanding anti-dilutive potential common stock excluded from income (loss) per diluted share	13,922,000
Stock options [Member]
Weighted Average Number of Shares Outstanding, Diluted [Abstract]
Outstanding anti-dilutive potential common stock excluded from income (loss) per diluted share	149,000	190,000
Restricted stock units [Member]
Weighted Average Number of Shares Outstanding, Diluted [Abstract]
Outstanding anti-dilutive potential common stock excluded from income (loss) per diluted share	3,816,000	3,616,000
Upfront Warrants (held by Total) [Member]
Weighted Average Number of Shares Outstanding, Diluted [Abstract]
Outstanding anti-dilutive potential common stock excluded from income (loss) per diluted share	6,367,000	6,908,000
Warrants (Under the CSO2015) [Member]
Weighted Average Number of Shares Outstanding, Diluted [Abstract]
Outstanding anti-dilutive potential common stock excluded from income (loss) per diluted share		11,096,000
0.75% debentures due 2018 [Member]
Weighted Average Number of Shares Outstanding, Diluted [Abstract]
Outstanding anti-dilutive potential common stock excluded from income (loss) per diluted share	12,026,000	12,026,000
0.875% debentures due 2021 [Member]
Weighted Average Number of Shares Outstanding, Diluted [Abstract]
Outstanding anti-dilutive potential common stock excluded from income (loss) per diluted share	8,203,000	8,203,000
Warrants (Under the CSO2015) [Member]
Weighted Average Number of Shares Outstanding, Diluted [Abstract]
Debentures due		0
4.00% debentures due 2023 [Member] [Member]
Net Income (Loss) Available to Common Stockholders, Diluted [Abstract]
Interest expense incurred on debentures	$ 0
Weighted Average Number of Shares Outstanding, Diluted [Abstract]
Debentures due	0
0.75% debentures due 2018 [Member]
Net Income (Loss) Available to Common Stockholders, Diluted [Abstract]
Interest expense incurred on debentures	$ 0	$ 0
Weighted Average Number of Shares Outstanding, Diluted [Abstract]
Debentures due	0	0
0.875% debentures due 2021 [Member]
Net Income (Loss) Available to Common Stockholders, Diluted [Abstract]
Interest expense incurred on debentures	$ 0	$ 0
Weighted Average Number of Shares Outstanding, Diluted [Abstract]
Debentures due	0	0
4.75% debentures due 2014 [Member] | Maximum [Member] | Bond Hedge [Member]
Weighted Average Number of Shares Outstanding, Diluted [Abstract]
Warrant or right, number of securities called by each warrant or right (in shares)			11,100,000
Upfront Warrants (held by Total) [Member]
Weighted Average Number of Shares Outstanding, Diluted [Abstract]
Warrants	0	0
Upfront Warrants (held by Total) [Member] | Total [Member]
Weighted Average Number of Shares Outstanding, Diluted [Abstract]
Warrant or right, number of securities called by each warrant or right (in shares)					9,531,677
Class of warrant or right, exercise price of warrants or rights (in dollars per share)					$ 7.8685
Warrant (Under the CSO2014) [Member]
Weighted Average Number of Shares Outstanding, Diluted [Abstract]
Class of warrant or right, exercise price of warrants or rights (in dollars per share)				$ 24.00
Stock options [Member]
Weighted Average Number of Shares Outstanding, Diluted [Abstract]
Restricted stock units	0	0
Restricted stock units [Member]
Weighted Average Number of Shares Outstanding, Diluted [Abstract]
Restricted stock units	0	0