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. 30, 2012	Mar. 31, 2012	Dec. 31, 2011
Restructuring Cost and Reserve [Line Items]
Balance at beginning	$ 103	$ 77	$ 0
Special charges	38	70	219
Non-cash charges used	(12)	(9)	(99)
Cash payments	(35)	(35)	(42)
Foreign exchange rate impact	(3)		(1)
Balance at ending	91	103	77
Employee Termination Costs [Member]
Restructuring Cost and Reserve [Line Items]
Balance at beginning	50	54	0
Special charges, severance and benefit costs	13	16	82
Non-cash charges used	0	0	0
Cash payments	(14)	(20)	(27)
Foreign exchange rate impact	(2)		(1)
Balance at ending	47	50	54
Inventory Charges [Member]
Restructuring Cost and Reserve [Line Items]
Balance at beginning	0	0	0
Special charges, inventory obsolescence charges	3	9	20
Non-cash charges used	(3)	(9)	(20)
Cash payments	0	0	0
Foreign exchange rate impact	0		0
Balance at ending	0	0	0
Fixed Asset Charges [Member]
Restructuring Cost and Reserve [Line Items]
Balance at beginning	0	0	0
Special charges, fixed asset impairment charges	0	0	26
Non-cash charges used	0	0	(26)
Cash payments	0	0	0
Foreign exchange rate impact	0		0
Balance at ending	0	0	0
Intangible Asset Charges [Member]
Restructuring Cost and Reserve [Line Items]
Balance at beginning	0	0	0
Special charges, intangible asset impairment charges	5	0	52
Non-cash charges used	(5)	0	(52)
Cash payments	0	0	0
Foreign exchange rate impact	0		0
Balance at ending	0	0	0
Other [Member]
Restructuring Cost and Reserve [Line Items]
Balance at beginning	53	23	0
Special charges, other	17	45	39
Non-cash charges used	(4)	0	(1)
Cash payments	(21)	(15)	(15)
Foreign exchange rate impact	(1)		0
Balance at ending	44	53	23
Cost of Sales [Member] | Employee Termination Costs [Member]
Restructuring Cost and Reserve [Line Items]
Special charges, severance and benefit costs	5	5	9
Cost of Sales [Member] | Fixed Asset Charges [Member]
Restructuring Cost and Reserve [Line Items]
Special charges, fixed asset impairment charges			9
Cost of Sales [Member] | Other [Member]
Restructuring Cost and Reserve [Line Items]
Special charges, other	7	9	10
Cardiac Rhythm Management [Member]
Restructuring Cost and Reserve [Line Items]
Special charges	30	42
Cardiac Rhythm Management [Member] | Fixed Asset Charges [Member]
Restructuring Cost and Reserve [Line Items]
Special charges, fixed asset impairment charges			12
Cardiac Rhythm Management [Member] | Other [Member]
Restructuring Cost and Reserve [Line Items]
Special charges, other	13	9	21
CV/AF [Member] | Fixed Asset Charges [Member]
Restructuring Cost and Reserve [Line Items]
Special charges, fixed asset impairment charges	$ 5