Goodwill and Other Intangible Assets (Tables)

6 Months Ended

Oct. 28, 2011

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule of Goodwill

	Cardiac and		Restorative
(in millions)	Vascular Group		Therapies Group		Total
Balance as of April 29, 2011	$	2,679	$	6,858	$	9,537
Goodwill as a result of acquisitions		-		398		398
Purchase accounting adjustments, net		6		23		29
Currency adjustment, net		(25)		5		(20)
Balance as of October 28, 2011	$	2,660	$	7,284	$	9,944

Schedule of Finite-Lived Intangible Assets by Major Class

	Purchased		Trademarks
	Technology and		and		Acquired
(in millions)	Patents		Tradenames		IPR&D		Other		Total
Amortizable intangible assets as of October 28, 2011:
Original cost	$	3,691	$	374	$	378	$	154	$	4,597
Accumulated amortization		(1,316)		(304)		-		(102)		(1,722)
Carrying value	$	2,375	$	70	$	378	$	52	$	2,875
Amortizable intangible assets as of April 29, 2011:
Original cost	$	3,565	$	373	$	338	$	150	$	4,426
Accumulated amortization		(1,265)		(290)		-		(94)		(1,649)
Carrying value	$	2,300	$	83	$	338	$	56	$	2,777

Schedule of Finite-Lived Intangible Assets, Future Amortization Expense

(in millions)	Estimated
Fiscal Year	Amortization Expense
Remaining 2012	$	152
2013		319
2014		308
2015		292
2016		280
Thereafter		1,146
Total estimated amortization expense	$	2,497