Debt and Other Obligations (Details) (Summary of Debt and Other Obligations) (USD $) In Millions, unless otherwise specified	Dec. 28, 2013	Dec. 29, 2012
Debt Instrument [Line Items]
Secured revolving line of credit, outstanding balance		$ 0
Capital lease obligations	16	23
Long-term debt and capital lease obligation including current portion	2,058	2,042
Current portion of long-term debt and capital lease obligations	60	5
Long-term debt and capital lease obligations, less current portion	1,998	2,037
6.00% Convertible Senior Notes Due 2015
Debt Instrument [Line Items]
Long-term debt, net of discount	517	555
8.125% Senior Notes Due 2017
Debt Instrument [Line Items]
Long-term debt, net of discount	470	464
7.75% Senior Notes Due 2020
Debt Instrument [Line Items]
Long-term debt, net of discount	500	500
7.50% Senior Notes due 2022
Debt Instrument [Line Items]
Long-term debt, net of discount	500	500
Secured Revolving Line of Credit
Debt Instrument [Line Items]
Secured revolving line of credit, outstanding balance	$ 55