Annual report pursuant to Section 13 and 15(d)

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

v3.8.0.1
Income Taxes (Details) (Summary of Tax Attribute Carryforwards)
$ in Millions
Dec. 30, 2017
USD ($)
US-net operating loss carryovers | Federal  
Tax Attribute Carryforwards [Line Items]  
Operating loss carryforwards, amount $ 7,254
US-net operating loss carryovers | State/Provincial  
Tax Attribute Carryforwards [Line Items]  
Operating loss carryforwards, amount 309
US-credit carryovers | Federal  
Tax Attribute Carryforwards [Line Items]  
Tax credit carryforward, amount 394
US-credit carryovers | State/Provincial  
Tax Attribute Carryforwards [Line Items]  
Tax credit carryforward, amount 213
Canada-credit carryovers | Federal  
Tax Attribute Carryforwards [Line Items]  
Tax credit carryforward, amount 369
Canada-credit carryovers | State/Provincial  
Tax Attribute Carryforwards [Line Items]  
Tax credit carryforward, amount 42
Other foreign net operating loss carryovers | Federal  
Tax Attribute Carryforwards [Line Items]  
Operating loss carryforwards, amount $ 37