Restructuring and Other Costs - Narrative (Details) patient in Thousands	3 Months Ended			9 Months Ended
	Jan. 28, 2022 USD ($)	Jul. 30, 2021 USD ($)	Jan. 29, 2021 USD ($)	Jan. 28, 2022 USD ($)	Jan. 29, 2021 USD ($)	Jun. 03, 2021 patient
Restructuring Cost and Reserve [Line Items]
Restructuring charges, net	$ 12,000,000		$ 83,000,000	$ 32,000,000	$ 235,000,000
MCS asset impairment and inventory write-down				515,000,000	0
Definite-lived intangible asset charges	0		0		0
Cardiovascular
Restructuring Cost and Reserve [Line Items]
Restructuring write down and impairment provisions		$ 726,000,000
MCS asset impairment and inventory write-down		515,000,000
Definite-lived intangible asset charges		409,000,000		409,000,000
Inventory write-down		58,000,000
Other restructuring costs		211,000,000
Restructuring reserve, current	64,000,000			64,000,000
Restructuring reserve, noncurrent	19,000,000			19,000,000
Number of mechanical circulatory support patients (in patients) | patient						4
Cost of products sold | Cardiovascular
Restructuring Cost and Reserve [Line Items]
Restructuring write down and impairment provisions		58,000,000
Other operating (income) expense, net | Cardiovascular
Restructuring Cost and Reserve [Line Items]
Restructuring write down and impairment provisions		$ 668,000,000
Enterprise Excellence
Restructuring Cost and Reserve [Line Items]
Restructuring charges, net	65,000,000		77,000,000	201,000,000	241,000,000
Charges				206,000,000
Enterprise Excellence | Cost of products sold
Restructuring Cost and Reserve [Line Items]
Charges	26,000,000		36,000,000	90,000,000	95,000,000
Enterprise Excellence | Selling, general, and administrative expense
Restructuring Cost and Reserve [Line Items]
Charges	28,000,000		30,000,000	85,000,000	125,000,000
Enterprise Excellence | Pre-tax exit and disposal costs and other
Restructuring Cost and Reserve [Line Items]
Cost incurred to date	1,500,000,000			1,500,000,000
Enterprise Excellence | Minimum | Pre-tax exit and disposal costs and other
Restructuring Cost and Reserve [Line Items]
Expected cost	1,600,000,000			1,600,000,000
Enterprise Excellence | Maximum | Pre-tax exit and disposal costs and other
Restructuring Cost and Reserve [Line Items]
Expected cost	1,800,000,000			1,800,000,000
Simplification
Restructuring Cost and Reserve [Line Items]
Restructuring charges, net	15,000,000		84,000,000	39,000,000	229,000,000
Charges				45,000,000
Incremental expense related to acceptance of voluntary early retirement packages					97,000,000
Simplification | Selling, general, and administrative expense
Restructuring Cost and Reserve [Line Items]
Restructuring charges, net	12,000,000		$ 11,000,000	28,000,000	$ 14,000,000
Simplification | Pre-tax exit and disposal costs and other
Restructuring Cost and Reserve [Line Items]
Cost incurred to date	307,000,000			307,000,000
Simplification | Minimum | Pre-tax exit and disposal costs and other
Restructuring Cost and Reserve [Line Items]
Expected cost	400,000,000			400,000,000
Simplification | Maximum | Pre-tax exit and disposal costs and other
Restructuring Cost and Reserve [Line Items]
Expected cost	$ 450,000,000			$ 450,000,000