Special Charges (Summary Of Activity Related To Special Charge Restructuring Accrual) (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended		12 Months Ended
	Jun. 29, 2013	Mar. 30, 2013	Dec. 29, 2012	Dec. 31, 2011
2011 Restructuring Plan [Member]
Restructuring Cost and Reserve [Line Items]
Balance at beginning	$ 32	$ 42	$ 72
Special charges	4	9	102	162
Non-cash charges used	(1)		(17)
Cash payments	(12)	(19)	(115)
Foreign exchange rate impact			0
Balance at ending	23	32	42	72
2011 Restructuring Plan [Member] | Employee Termination Costs [Member]
Restructuring Cost and Reserve [Line Items]
Balance at beginning	14	25	54
Special charges, severance and benefit costs		2	38
Non-cash charges used	0		0
Cash payments	(5)	(13)	(68)
Foreign exchange rate impact			1
Balance at ending	9	14	25
2011 Restructuring Plan [Member] | Inventory Charges [Member]
Restructuring Cost and Reserve [Line Items]
Balance at beginning	0	0	0
Non-cash charges used	0		(13)
Cash payments	0	0	0
Foreign exchange rate impact			0
Balance at ending	0	0	0
2011 Restructuring Plan [Member] | Fixed Asset Charges [Member]
Restructuring Cost and Reserve [Line Items]
Balance at beginning	0		0
Special charges, fixed asset impairment charges	1
Non-cash charges used	(1)		0
Cash payments	0		0
Foreign exchange rate impact			0
Balance at ending	0		0
2011 Restructuring Plan [Member] | Other Restructuring [Member]
Restructuring Cost and Reserve [Line Items]
Balance at beginning	18	17	18
Restructuring reserve period expense			51
Non-cash charges used	0		(4)
Cash payments	(7)	(6)	(47)
Foreign exchange rate impact			(1)
Balance at ending	14	18	17
2011 Restructuring Plan [Member] | Cost of Sales [Member]
Restructuring Cost and Reserve [Line Items]
Special charges			44
2011 Restructuring Plan [Member] | Cost of Sales [Member] | Employee Termination Costs [Member]
Restructuring Cost and Reserve [Line Items]
Special charges, severance and benefit costs			11
2011 Restructuring Plan [Member] | Cost of Sales [Member] | Inventory Charges [Member]
Restructuring Cost and Reserve [Line Items]
Special charges, inventory obsolescence charges			13
2011 Restructuring Plan [Member] | Cost of Sales [Member] | Fixed Asset Charges [Member]
Restructuring Cost and Reserve [Line Items]
Special charges, fixed asset impairment charges			0
2011 Restructuring Plan [Member] | Cost of Sales [Member] | Other Restructuring [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring reserve period expense			20
2011 Restructuring Plan [Member] | Operating Expense [Member]
Restructuring Cost and Reserve [Line Items]
Special charges	4	9	58
2011 Restructuring Plan [Member] | Operating Expense [Member] | Employee Termination Costs [Member]
Restructuring Cost and Reserve [Line Items]
Special charges, severance and benefit costs	0	2	27
2011 Restructuring Plan [Member] | Operating Expense [Member] | Inventory Charges [Member]
Restructuring Cost and Reserve [Line Items]
Special charges, inventory obsolescence charges	0	0	0
2011 Restructuring Plan [Member] | Operating Expense [Member] | Fixed Asset Charges [Member]
Restructuring Cost and Reserve [Line Items]
Special charges, fixed asset impairment charges	1	0	0
2011 Restructuring Plan [Member] | Operating Expense [Member] | Other Restructuring [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring reserve period expense	3	7	31
2012 Business Realignment Restructuring Plan [Member]
Restructuring Cost and Reserve [Line Items]
Balance at beginning	44	66	0
Special charges	39	34	185
Non-cash charges used	(7)	(20)	(61)
Cash payments	(26)	(35)	(59)
Foreign exchange rate impact	1	(1)	1
Balance at ending	51	44	66
2012 Business Realignment Restructuring Plan [Member] | Employee Termination Costs [Member]
Restructuring Cost and Reserve [Line Items]
Balance at beginning	35	58	0
Special charges, severance and benefit costs	19	10	109
Non-cash charges used	0	0	0
Cash payments	(17)	(32)	(52)
Foreign exchange rate impact	1	(1)	1
Balance at ending	38	35	58
2012 Business Realignment Restructuring Plan [Member] | Inventory Charges [Member]
Restructuring Cost and Reserve [Line Items]
Balance at beginning	0	0	0
Non-cash charges used	(1)	(18)	(17)
Cash payments	0	0	0
Foreign exchange rate impact	0	0	0
Balance at ending	0	0	0
2012 Business Realignment Restructuring Plan [Member] | Fixed Asset Charges [Member]
Restructuring Cost and Reserve [Line Items]
Balance at beginning	0	0	0
Non-cash charges used	(2)	(2)	(41)
Cash payments	0	0	0
Foreign exchange rate impact	0	0	0
Balance at ending	0	0	0
2012 Business Realignment Restructuring Plan [Member] | Other Restructuring [Member]
Restructuring Cost and Reserve [Line Items]
Balance at beginning	9	8	0
Restructuring reserve period expense	17	4	18
Non-cash charges used	(4)	0	(3)
Cash payments	(9)	(3)	(7)
Foreign exchange rate impact	0	0	0
Balance at ending	13	9	8
2012 Business Realignment Restructuring Plan [Member] | Cost of Sales [Member]
Restructuring Cost and Reserve [Line Items]
Special charges	1	18	24
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	0	0	5
2012 Business Realignment Restructuring Plan [Member] | Cost of Sales [Member] | Inventory Charges [Member]
Restructuring Cost and Reserve [Line Items]
Special charges, inventory obsolescence charges	1	18	17
2012 Business Realignment Restructuring Plan [Member] | Cost of Sales [Member] | Fixed Asset Charges [Member]
Restructuring Cost and Reserve [Line Items]
Special charges, fixed asset impairment charges	0	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	2
2012 Business Realignment Restructuring Plan [Member] | Operating Expense [Member]
Restructuring Cost and Reserve [Line Items]
Special charges	38	16	161
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	19	10	104
2012 Business Realignment Restructuring Plan [Member] | Operating Expense [Member] | Inventory Charges [Member]
Restructuring Cost and Reserve [Line Items]
Special charges, inventory obsolescence charges	0	0	0
2012 Business Realignment Restructuring Plan [Member] | Operating Expense [Member] | Fixed Asset Charges [Member]
Restructuring Cost and Reserve [Line Items]
Special charges, fixed asset impairment charges	2	2	41
2012 Business Realignment Restructuring Plan [Member] | Operating Expense [Member] | Other Restructuring [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring reserve period expense	$ 17	$ 4	$ 16