Goodwill and Other Intangible Assets, Net (Tables)

9 Months Ended

Jan. 25, 2013

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule of Goodwill

The changes in the carrying amount of goodwill for the nine months ended January 25, 2013 are as follows:

(in millions)	Cardiac and Vascular Group			Restorative Therapies Group			Total
Balance as of April 27, 2012	$	2,636		$	7,298		$	9,934
Goodwill as a result of acquisitions	—			413			413
Purchase accounting adjustments, net	—			1			1
Currency adjustment, net	(2		)	(5		)	(7		)
Balance as of January 25, 2013	$	2,634		$	7,707		$	10,341

Schedule of Finite-Lived Intangible Assets by Major Class

Balances of intangible assets, net, excluding goodwill, as of January 25, 2013 and April 27, 2012 are as follows:

(in millions)	Purchased Technology and Patents			Trademarks and Tradenames			Acquired IPR&D		Other			Total
Amortizable intangible assets as of January 25, 2013:
Original cost	$	3,898		$	408		$	366	$	121		$	4,793
Accumulated amortization	(1,626		)	(317		)	—		(92		)	(2,035		)
Carrying value	$	2,272		$	91		$	366	$	29		$	2,758
Amortizible intangible assets as of April 27, 2012:
Original cost	$	3,604		$	373		$	370	$	148		$	4,495
Accumulated amortization	(1,440		)	(307		)	—		(101		)	(1,848		)
Carrying value	$	2,164		$	66		$	370	$	47		$	2,647

Schedule of Finite-Lived Intangible Assets, Future Amortization Expense

Estimated aggregate amortization expense based on the current carrying value of amortizable intangible assets, excluding any possible future amortization associated with acquired IPR&D, which has not met technological feasibility, is as follows:

(in millions) Fiscal Year	Estimated Amortization Expense
Remaining 2013	$	86
2014	337
2015	320
2016	307
2017	286
2018	270
Thereafter	786
Total estimated amortization expense	$	2,392