Goodwill and Other Intangible Assets - Narrative (Details) - USD ($)	12 Months Ended
	Apr. 28, 2023	Apr. 29, 2022	Apr. 30, 2021	Jul. 29, 2022
Goodwill [Line Items]
Goodwill impairment		$ 0	$ 0
Impairment of finite-lived intangible assets	$ 0
Impairment, Intangible Asset, Indefinite-Lived (Excluding Goodwill), Statement of Income or Comprehensive Income [Extensible Enumeration]			Other Operating Income (Expense), Net
Amortization of intangible assets	1,698,000,000	$ 1,733,000,000	$ 1,783,000,000
Impairment, Intangible Asset, Finite-Lived, Statement of Income or Comprehensive Income [Extensible Enumeration]		Other Operating Income (Expense), Net
Cardiovascular
Goodwill [Line Items]
Impairment of finite-lived intangible assets		$ 409,000,000
Neuroscience
Goodwill [Line Items]
Impairment of finite-lived intangible assets			30,000,000
Impairment of indefinite-lived intangible assets	0	$ 0	$ 45,000,000
Renal Care Business (RCS) | Medical Surgical
Goodwill [Line Items]
Transfer to held for sale				$ 208,000,000
Goodwill impairment	$ 61,000,000