Goodwill and Other Intangible Assets (Tables)

12 Months Ended

Apr. 24, 2020

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule of Goodwill

The following table presents the changes in the carrying amount of goodwill by segment:

(in millions)	Cardiac and Vascular Group		Minimally Invasive Therapies Group		Restorative Therapies Group		Diabetes Group		Total
April 27, 2018	$	6,791	$	21,155	$	9,717	$	1,880	$	39,543
Goodwill as a result of acquisitions	165		83		1,238		24		1,510
Currency translation and other	(102)		(857)		(134)		(1)		(1,094)
April 26, 2019	6,854		20,381		10,821		1,903		39,959
Goodwill as a result of acquisitions	19		227		71		16		333
Purchase accounting adjustments	7		2		120		(5)		124
Currency translation and other	(49)		(434)		(92)		—		(575)
April 24, 2020	$	6,831	$	20,176	$	10,920	$	1,914	$	39,841

Schedule of Finite-Lived Intangible Assets by Major Class

The following table presents the gross carrying amount and accumulated amortization of intangible assets:

	April 24, 2020				April 26, 2019
(in millions)	Gross Carrying Amount		Accumulated Amortization		Gross Carrying Amount		Accumulated Amortization
Definite-lived:
Customer-related	$	16,963	$	(5,065)	$	16,944	$	(4,095)
Purchased technology and patents	10,742		(4,354)		11,405		(4,570)
Trademarks and tradenames	464		(232)		570		(324)
Other	75		(53)		85		(59)
Total	$	28,244	$	(9,704)	$	29,004	$	(9,048)
Indefinite-lived:
IPR&D	$	523	$	—	$	604	$	—

Schedule of Indefinite-Lived Intangible Assets by Major Class

The following table presents the gross carrying amount and accumulated amortization of intangible assets:

	April 24, 2020				April 26, 2019
(in millions)	Gross Carrying Amount		Accumulated Amortization		Gross Carrying Amount		Accumulated Amortization
Definite-lived:
Customer-related	$	16,963	$	(5,065)	$	16,944	$	(4,095)
Purchased technology and patents	10,742		(4,354)		11,405		(4,570)
Trademarks and tradenames	464		(232)		570		(324)
Other	75		(53)		85		(59)
Total	$	28,244	$	(9,704)	$	29,004	$	(9,048)
Indefinite-lived:
IPR&D	$	523	$	—	$	604	$	—

Schedule of Finite-Lived Intangible Assets, Future Amortization Expense

Estimated aggregate amortization expense by fiscal year based on the current carrying value and remaining estimated useful lives of definite-lived intangible assets at April 24, 2020, excluding any possible future amortization associated with acquired IPR&D which has not met technological feasibility, is as follows:

(in millions)	Amortization Expense
2021	$	1,748
2022	1,706
2023	1,644
2024	1,615
2025	1,588