Property, Plant, and Equipment (Details) - USD ($) $ in Millions	12 Months Ended
	Apr. 24, 2020	Apr. 26, 2019	Apr. 27, 2018
Property, Plant and Equipment [Line Items]
Property, plant, and equipment	$ 11,644	$ 10,920
Less: Accumulated depreciation	(6,816)	(6,245)
Property, plant, and equipment, net	4,828	4,675
Depreciation expense	907	895	$ 821
Equipment
Property, Plant and Equipment [Line Items]
Property, plant, and equipment	$ 5,859	5,519
Property, plant, and equipment, useful life	15 years
Equipment | Minimum
Property, Plant and Equipment [Line Items]
Property, plant, and equipment, useful life	2 years
Equipment | Maximum
Property, Plant and Equipment [Line Items]
Property, plant, and equipment, useful life	7 years
Computer software
Property, Plant and Equipment [Line Items]
Property, plant, and equipment	$ 2,131	1,842
Computer software | Maximum
Property, Plant and Equipment [Line Items]
Property, plant, and equipment, useful life	5 years
Land and land improvements
Property, Plant and Equipment [Line Items]
Property, plant, and equipment	$ 175	181
Land and land improvements | Maximum
Property, Plant and Equipment [Line Items]
Property, plant, and equipment, useful life	20 years
Buildings and leasehold improvements
Property, Plant and Equipment [Line Items]
Property, plant, and equipment	$ 2,277	2,267
Buildings and leasehold improvements | Maximum
Property, Plant and Equipment [Line Items]
Property, plant, and equipment, useful life	40 years
Construction in progress
Property, Plant and Equipment [Line Items]
Property, plant, and equipment	$ 1,202	$ 1,111