Special Charges (Summary Of Activity Related To Special Charge Restructuring Accrual) (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended			12 Months Ended
	Sep. 27, 2014	Jun. 28, 2014	Mar. 29, 2014	Dec. 28, 2013	Dec. 29, 2012
Fixed Asset Write-offs [Member]
Restructuring Cost and Reserve [Line Items]
Special charges, fixed asset impairment charges	$ 5
2012 Business Realignment Restructuring Plan [Member]
Restructuring Cost and Reserve [Line Items]
Balance at beginning	81	68	87	66
Special charges	9	60	34	220	185
Non-cash charges used	(4)	(21)	(2)	(47)
Cash payments	(28)	(26)	(51)	(152)
Restructuring Reserve, Translation Adjustment	(2)
Balance at ending	56	81	68	87	66
2012 Business Realignment Restructuring Plan [Member] | Employee Termination Costs [Member]
Restructuring Cost and Reserve [Line Items]
Balance at beginning	60	44	54	58
Non-cash charges used	0	0	0	0
Cash payments	(22)	(14)	(22)	(79)
Restructuring Reserve, Translation Adjustment	(1)
Balance at ending	38	60	44	54
2012 Business Realignment Restructuring Plan [Member] | Inventory Write-offs [Member]
Restructuring Cost and Reserve [Line Items]
Balance at beginning	0	0	0	0
Non-cash charges used	0	(7)	(1)	(30)
Cash payments	0	0	0	0
Restructuring Reserve, Translation Adjustment	0
Balance at ending	0	0	0	0
2012 Business Realignment Restructuring Plan [Member] | Fixed Asset Write-offs [Member]
Restructuring Cost and Reserve [Line Items]
Balance at beginning	0	0	0	0
Special charges, fixed asset impairment charges		14
Non-cash charges used	(4)	(14)	(1)	(13)
Cash payments	0	0	0	0
Restructuring Reserve, Translation Adjustment	0
Balance at ending	0	0	0	0
2012 Business Realignment Restructuring Plan [Member] | Other Restructuring [Member]
Restructuring Cost and Reserve [Line Items]
Balance at beginning	21	24	33	8
Non-cash charges used	0	0	0	(4)
Cash payments	(6)	(12)	(29)	(73)
Restructuring Reserve, Translation Adjustment	(1)
Balance at ending	18	21	24	33
2012 Business Realignment Restructuring Plan [Member] | Cost of Sales [Member]
Restructuring Cost and Reserve [Line Items]
Special charges		26	1	35
2012 Business Realignment Restructuring Plan [Member] | Cost of Sales [Member] | Employee Termination Costs [Member]
Restructuring Cost and Reserve [Line Items]
Special charges, severance and benefit costs		7	0	0
2012 Business Realignment Restructuring Plan [Member] | Cost of Sales [Member] | Inventory Write-offs [Member]
Restructuring Cost and Reserve [Line Items]
Special charges, inventory obsolescence charges		7	1	30
2012 Business Realignment Restructuring Plan [Member] | Cost of Sales [Member] | Fixed Asset Write-offs [Member]
Restructuring Cost and Reserve [Line Items]
Special charges, fixed asset impairment charges		12	0	0
2012 Business Realignment Restructuring Plan [Member] | Cost of Sales [Member] | Other Restructuring [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring reserve period expense		0	0	5
2012 Business Realignment Restructuring Plan [Member] | Operating Expense [Member]
Restructuring Cost and Reserve [Line Items]
Special charges	9	34	33	185
2012 Business Realignment Restructuring Plan [Member] | Operating Expense [Member] | Employee Termination Costs [Member]
Restructuring Cost and Reserve [Line Items]
Special charges, severance and benefit costs	1	23	12	75
2012 Business Realignment Restructuring Plan [Member] | Operating Expense [Member] | Inventory Write-offs [Member]
Restructuring Cost and Reserve [Line Items]
Special charges, inventory obsolescence charges	0	0	0	0
2012 Business Realignment Restructuring Plan [Member] | Operating Expense [Member] | Fixed Asset Write-offs [Member]
Restructuring Cost and Reserve [Line Items]
Special charges, fixed asset impairment charges	4	2	1	13
2012 Business Realignment Restructuring Plan [Member] | Operating Expense [Member] | Other Restructuring [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring reserve period expense	4	9	20	97
Manuf and Supply Optimization Plan [Member]
Restructuring Cost and Reserve [Line Items]
Balance at beginning	0
Special charges	7
Non-cash charges used	(1)
Cash payments	(2)
Balance at ending	4
Manuf and Supply Optimization Plan [Member] | Employee Termination Costs [Member]
Restructuring Cost and Reserve [Line Items]
Balance at beginning	0
Non-cash charges used	0
Cash payments	(2)
Balance at ending	4
Manuf and Supply Optimization Plan [Member] | Inventory Write-offs [Member]
Restructuring Cost and Reserve [Line Items]
Balance at beginning	0
Non-cash charges used	0
Cash payments	0
Balance at ending	0
Manuf and Supply Optimization Plan [Member] | Fixed Asset Write-offs [Member]
Restructuring Cost and Reserve [Line Items]
Balance at beginning	0
Non-cash charges used	(1)
Cash payments	0
Balance at ending	0
Manuf and Supply Optimization Plan [Member] | Other Restructuring [Member]
Restructuring Cost and Reserve [Line Items]
Balance at beginning	0
Non-cash charges used	0
Cash payments	0
Balance at ending	0
Manuf and Supply Optimization Plan [Member] | Cost of Sales [Member]
Restructuring Cost and Reserve [Line Items]
Special charges	1
Manuf and Supply Optimization Plan [Member] | Cost of Sales [Member] | Employee Termination Costs [Member]
Restructuring Cost and Reserve [Line Items]
Special charges, severance and benefit costs	1
Manuf and Supply Optimization Plan [Member] | Cost of Sales [Member] | Inventory Write-offs [Member]
Restructuring Cost and Reserve [Line Items]
Special charges, inventory obsolescence charges	0
Manuf and Supply Optimization Plan [Member] | Cost of Sales [Member] | Fixed Asset Write-offs [Member]
Restructuring Cost and Reserve [Line Items]
Special charges, fixed asset impairment charges	0
Manuf and Supply Optimization Plan [Member] | Cost of Sales [Member] | Other Restructuring [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring reserve period expense	0
Manuf and Supply Optimization Plan [Member] | Operating Expense [Member]
Restructuring Cost and Reserve [Line Items]
Special charges	6
Manuf and Supply Optimization Plan [Member] | Operating Expense [Member] | Employee Termination Costs [Member]
Restructuring Cost and Reserve [Line Items]
Special charges, severance and benefit costs	5
Manuf and Supply Optimization Plan [Member] | Operating Expense [Member] | Inventory Write-offs [Member]
Restructuring Cost and Reserve [Line Items]
Special charges, inventory obsolescence charges	0
Manuf and Supply Optimization Plan [Member] | Operating Expense [Member] | Fixed Asset Write-offs [Member]
Restructuring Cost and Reserve [Line Items]
Special charges, fixed asset impairment charges	1
Manuf and Supply Optimization Plan [Member] | Operating Expense [Member] | Other Restructuring [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring reserve period expense	$ 0