Significant Accounting Policies (Details) (Components of Basic and Diluted Income (loss)) - USD ($) $ / shares in Units, $ in Millions |
3 Months Ended | 12 Months Ended | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
Dec. 26, 2015 |
Sep. 26, 2015 |
Jun. 27, 2015 |
Mar. 28, 2015 |
Dec. 27, 2014 |
Sep. 27, 2014 |
Jun. 28, 2014 |
Mar. 29, 2014 |
Dec. 26, 2015 |
Dec. 27, 2014 |
Dec. 28, 2013 |
|
| Numerator—Net income (loss): | |||||||||||
| Net loss | $ (102) | $ (197) | $ (181) | $ (180) | $ (364) | $ 17 | $ (36) | $ (20) | $ (660) | $ (403) | $ (83) |
| Denominator—Weighted average shares: | |||||||||||
| Basic and diluted | 783,000,000 | 768,000,000 | 754,000,000 | ||||||||
| Net loss per share | |||||||||||
| Basic | $ (0.13) | $ (0.25) | $ (0.23) | $ (0.23) | $ (0.47) | $ 0.02 | $ (0.05) | $ (0.03) | $ (0.84) | $ (0.53) | $ (0.11) |
| Diluted | $ (0.13) | $ (0.25) | $ (0.23) | $ (0.23) | $ (0.47) | $ 0.02 | $ (0.05) | $ (0.03) | $ (0.84) | $ (0.53) | $ (0.11) |
| WCH Warrant [Member] | |||||||||||
| Net loss per share | |||||||||||
| Warrant, exercise date | Mar. 07, 2014 | ||||||||||
| Warrant, common shares issued from cashless exercise | 34,906,166 | ||||||||||
| Warrant, common shares issuable from cashless exercise | 35,000,000 | ||||||||||
| Warrant, outstanding | 0 | 0 | |||||||||
| Stock Options, Restricted Stock and Restricted Stock Units | |||||||||||
| Net loss per share | |||||||||||
| Antidilutive securities excluded from computation of earnings per share | 52,000,000 | 48,000,000 | 59,000,000 | ||||||||
| X | ||||||||||
- Definition Date of warrants or rights exercised. No definition available.
|
| X | ||||||||||
- Definition Number of shares of common stock issuable from cashless exercise of warrants. No definition available.
|
| X | ||||||||||
- Definition Denominator—Weighted average shares: [Abstract] No definition available.
|
| X | ||||||||||
- Definition Numerator—Net income (loss): [Abstract] No definition available.
|
| X | ||||||||||
- Definition Number of shares issued during the period as a result of cashless warrant exercise. No definition available.
|
| X | ||||||||||
- Definition Securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) or earnings per unit (EPU) in the future that were not included in the computation of diluted EPS or EPU because to do so would increase EPS or EPU amounts or decrease loss per share or unit amounts for the period presented. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition Number of warrants or rights outstanding. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- References No definition available.
|
| X | ||||||||||
- Definition The amount of net income (loss) for the period per each share of common stock or unit outstanding during the reporting period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition The amount of net income (loss) for the period available to each share of common stock or common unit outstanding during the reporting period and to each share or unit that would have been outstanding assuming the issuance of common shares or units for all dilutive potential common shares or units outstanding during the reporting period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition The portion of profit or loss for the period, net of income taxes, which is attributable to the parent. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition Average number of shares or units issued and outstanding that are used in calculating basic and diluted earnings per share (EPS). No definition available.
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|