Restructuring, Separation, And Transition (Details) (USD $) In Millions, unless otherwise specified	0 Months Ended
	Oct. 09, 2014 company	Jan. 02, 2015
Fiscal 2015 Plan | Minimum
Restructuring Cost and Reserve [Line Items]
Expected cost		$ 180
Fiscal 2015 Plan | Minimum | Severance costs
Restructuring Cost and Reserve [Line Items]
Expected cost		100
Fiscal 2015 Plan | Minimum | Separation costs
Restructuring Cost and Reserve [Line Items]
Expected cost		80
Fiscal 2015 Plan | Maximum
Restructuring Cost and Reserve [Line Items]
Expected cost		220
Fiscal 2015 Plan | Maximum | Severance costs
Restructuring Cost and Reserve [Line Items]
Expected cost		120
Fiscal 2015 Plan | Maximum | Separation costs
Restructuring Cost and Reserve [Line Items]
Expected cost		$ 100
Information Management | Tax-free Distribution
Restructuring Cost and Reserve [Line Items]
Planned number of independent companies	2