Annual report pursuant to Section 13 and 15(d)

Income Taxes (Details) (Summary of Tax Attribute Carryforwards)

v2.4.0.6
Income Taxes (Details) (Summary of Tax Attribute Carryforwards) (USD $)
In Millions, unless otherwise specified
 12 Months Ended
Dec. 29, 2012
US-net operating loss carryovers
  
Tax Attribute Carryforwards [Line Items]  
Operating Loss Carryforwards, Expiration Dates 2013 to 2032
US-net operating loss carryovers | Federal
  
Tax Attribute Carryforwards [Line Items]  
Operating Loss Carryforwards 3,907
US-net operating loss carryovers | State/Provincial
  
Tax Attribute Carryforwards [Line Items]  
Operating Loss Carryforwards 251
US-credit carryovers
  
Tax Attribute Carryforwards [Line Items]  
Tax Credit Carryforwards, Expiration Date 2018 to 2031
US-credit carryovers | Federal
  
Tax Attribute Carryforwards [Line Items]  
Tax Credit Carryforward, Amount 478
US-credit carryovers | State/Provincial
  
Tax Attribute Carryforwards [Line Items]  
Tax Credit Carryforward, Amount 177
Canada-net operating loss carryovers
  
Tax Attribute Carryforwards [Line Items]  
Operating Loss Carryforwards, Expiration Dates 2025 to 2028
Canada-net operating loss carryovers | Federal
  
Tax Attribute Carryforwards [Line Items]  
Operating Loss Carryforwards 347
Canada-net operating loss carryovers | State/Provincial
  
Tax Attribute Carryforwards [Line Items]  
Operating Loss Carryforwards 347
Canada-credit carryovers
  
Tax Attribute Carryforwards [Line Items]  
Tax Credit Carryforwards, Expiration Date 2012 to 2032
Canada-credit carryovers | Federal
  
Tax Attribute Carryforwards [Line Items]  
Tax Credit Carryforward, Amount 404
Canada-credit carryovers | State/Provincial
  
Tax Attribute Carryforwards [Line Items]  
Tax Credit Carryforward, Amount 24
Canada-R&D pools
  
Tax Attribute Carryforwards [Line Items]  
Tax Credit Carryforwards, Expiration Date no expiration
Canada-R&D pools | Federal
  
Tax Attribute Carryforwards [Line Items]  
Tax Credit Carryforward, Amount 135
Canada-R&D pools | State/Provincial
  
Tax Attribute Carryforwards [Line Items]  
Tax Credit Carryforward, Amount 135
Barbados-net operating loss carryovers
  
Tax Attribute Carryforwards [Line Items]  
Operating Loss Carryforwards, Expiration Dates 2013 to 2017
Barbados-net operating loss carryovers | Federal
  
Tax Attribute Carryforwards [Line Items]  
Operating Loss Carryforwards 299
Other foreign net operating loss carryovers
  
Tax Attribute Carryforwards [Line Items]  
Operating Loss Carryforwards, Expiration Dates various
Other foreign net operating loss carryovers | Federal
  
Tax Attribute Carryforwards [Line Items]  
Operating Loss Carryforwards 12