Goodwill and Other Intangible Assets (Tables)

6 Months Ended

Oct. 30, 2020

Goodwill and Intangible Assets Disclosure [Abstract]

Changes in the Carrying Amount 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 24, 2020	$	6,831	$	20,176	$	10,920	$	1,914	$	39,841
Goodwill as a result of acquisitions	—		—		35		346		381
Purchase accounting adjustments	—		—		3		—		3
Currency translation and other	95		772		119		1		987
October 30, 2020	$	6,926	$	20,948	$	11,077	$	2,261	$	41,212

Gross Carrying Amount and Accumulated Amortization of Definite-Lived Intangible Assets

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

	October 30, 2020				April 24, 2020
(in millions)	Gross Carrying Amount		Accumulated Amortization		Gross Carrying Amount		Accumulated Amortization
Definite-lived:
Customer-related	$	17,017	$	(5,567)	$	16,963	$	(5,065)
Purchased technology and patents	11,041		(4,767)		10,742		(4,354)
Trademarks and tradenames	469		(241)		464		(232)
Other	78		(58)		75		(53)
Total	$	28,605	$	(10,633)	$	28,244	$	(9,704)
Indefinite-lived:
IPR&D	$	440	$	—	$	523	$	—

Gross Carrying Amount of Indefinite-Lived Intangible Assets

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

	October 30, 2020				April 24, 2020
(in millions)	Gross Carrying Amount		Accumulated Amortization		Gross Carrying Amount		Accumulated Amortization
Definite-lived:
Customer-related	$	17,017	$	(5,567)	$	16,963	$	(5,065)
Purchased technology and patents	11,041		(4,767)		10,742		(4,354)
Trademarks and tradenames	469		(241)		464		(232)
Other	78		(58)		75		(53)
Total	$	28,605	$	(10,633)	$	28,244	$	(9,704)
Indefinite-lived:
IPR&D	$	440	$	—	$	523	$	—

Estimated Future Aggregate Amortization Expense, Definite-Lived Intangible Assets

Estimated aggregate amortization expense by fiscal year based on the carrying value of definite-lived intangible assets at October 30, 2020, excluding any possible future amortization associated with acquired IPR&D which has not yet met technological feasibility, is as follows:

(in millions)	Amortization Expense
Remaining 2021	$	888
2022	1,738
2023	1,674
2024	1,643
2025	1,617
2026	1,604