Restructuring, Separation, And Transition (Total Restructuring Liabilities) (Details) (USD $) In Millions, unless otherwise specified	Jan. 02, 2015	Mar. 28, 2014
Restructuring Cost and Reserve [Line Items]
Restructuring liabilities	$ 47	$ 38
Other current liabilities
Restructuring Cost and Reserve [Line Items]
Restructuring liabilities	47	37
Other long-term obligations
Restructuring Cost and Reserve [Line Items]
Restructuring liabilities	$ 0	$ 1