Goodwill and Other Intangible Assets (Tables)

9 Months Ended

Jan. 28, 2022

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)	Cardiovascular		Medical Surgical		Neuroscience		Diabetes		Total
April 30, 2021	$	7,209	$	21,195	$	11,300	$	2,257	$	41,961
Goodwill as a result of acquisitions	55		—		26		—		80
Purchase accounting adjustments	26		3		3		(2)		30
Currency translation and other	(58)		(575)		(92)		(1)		(726)
January 28, 2022	$	7,232	$	20,623	$	11,237	$	2,254	$	41,346

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:

	January 28, 2022				April 30, 2021
(in millions)	Gross Carrying Amount		Accumulated Amortization		Gross Carrying Amount		Accumulated Amortization
Definite-lived:
Customer-related	$	16,990	$	(6,775)	$	17,036	$	(6,058)
Purchased technology and patents	10,834		(5,506)		11,286		(5,156)
Trademarks and tradenames	474		(262)		475		(251)
Other	78		(66)		82		(68)
Total	$	28,376	$	(12,609)	$	28,879	$	(11,533)
Indefinite-lived:
IPR&D	$	311	$	—	$	394	$	—

Gross Carrying Amount of Indefinite-Lived Intangible Assets

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

	January 28, 2022				April 30, 2021
(in millions)	Gross Carrying Amount		Accumulated Amortization		Gross Carrying Amount		Accumulated Amortization
Definite-lived:
Customer-related	$	16,990	$	(6,775)	$	17,036	$	(6,058)
Purchased technology and patents	10,834		(5,506)		11,286		(5,156)
Trademarks and tradenames	474		(262)		475		(251)
Other	78		(66)		82		(68)
Total	$	28,376	$	(12,609)	$	28,879	$	(11,533)
Indefinite-lived:
IPR&D	$	311	$	—	$	394	$	—

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 January 28, 2022, 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 2022	$	430
2023	1,663
2024	1,629
2025	1,606
2026	1,592
2027	1,568