Special Charges (Summary Of Activity Related To Special Charge Restructuring Accrual) (Details) (2012 Business Realignment Restructuring Plan [Member], USD $) In Millions, unless otherwise specified	3 Months Ended		12 Months Ended
	Jun. 28, 2014	Mar. 29, 2014	Dec. 28, 2013	Dec. 29, 2012
Restructuring Cost and Reserve [Line Items]
Balance at beginning	$ 68	$ 87	$ 66
Special charges, fixed asset impairment charges	14
Special charges	60	34	220	185
Non-cash charges used	(21)	(2)	(47)
Cash payments	(26)	(51)	(152)
Balance at ending	81	68	87	66
Employee Termination Costs [Member]
Restructuring Cost and Reserve [Line Items]
Balance at beginning	44	54	58
Non-cash charges used	0	0	0
Cash payments	(14)	(22)	(79)
Balance at ending	60	44	54
Inventory Charges [Member]
Restructuring Cost and Reserve [Line Items]
Balance at beginning	0	0	0
Non-cash charges used	(7)	(1)	(30)
Cash payments	0	0	0
Balance at ending	0	0	0
Fixed Asset Charges [Member]
Restructuring Cost and Reserve [Line Items]
Balance at beginning	0	0	0
Non-cash charges used	(14)	(1)	(13)
Cash payments	0	0	0
Balance at ending	0	0	0
Other Restructuring [Member]
Restructuring Cost and Reserve [Line Items]
Balance at beginning	24	33	8
Non-cash charges used	0	0	(4)
Cash payments	(12)	(29)	(73)
Balance at ending	21	24	33
Cost of Sales [Member]
Restructuring Cost and Reserve [Line Items]
Special charges	26	1	35
Cost of Sales [Member] | Employee Termination Costs [Member]
Restructuring Cost and Reserve [Line Items]
Special charges, severance and benefit costs	7	0	0
Cost of Sales [Member] | Inventory Charges [Member]
Restructuring Cost and Reserve [Line Items]
Special charges, inventory obsolescence charges	7	1	30
Cost of Sales [Member] | Fixed Asset Charges [Member]
Restructuring Cost and Reserve [Line Items]
Special charges, fixed asset impairment charges	12	0	0
Cost of Sales [Member] | Other Restructuring [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring reserve period expense	0	0	5
Operating Expense [Member]
Restructuring Cost and Reserve [Line Items]
Special charges	34	33	185
Operating Expense [Member] | Employee Termination Costs [Member]
Restructuring Cost and Reserve [Line Items]
Special charges, severance and benefit costs	23	12	75
Operating Expense [Member] | Inventory Charges [Member]
Restructuring Cost and Reserve [Line Items]
Special charges, inventory obsolescence charges	0	0	0
Operating Expense [Member] | Fixed Asset Charges [Member]
Restructuring Cost and Reserve [Line Items]
Special charges, fixed asset impairment charges	2	1	13
Operating Expense [Member] | Other Restructuring [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring reserve period expense	$ 9	$ 20	$ 97