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Property, Plant, and Equipment (Details) - USD ($) $ in Millions	12 Months Ended
	Apr. 28, 2017	Apr. 29, 2016	Apr. 24, 2015
Property, Plant and Equipment [Line Items]
Subtotal	$ 9,691	$ 9,714
Less: Accumulated depreciation	(5,330)	(4,873)
Property, plant, and equipment, net	4,361	4,841
Depreciation expense	937	889	$ 573
Land and land improvements
Property, Plant and Equipment [Line Items]
Subtotal	$ 186	215
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]
Subtotal	$ 2,175	2,394
Buildings and leasehold improvements | Maximum
Property, Plant and Equipment [Line Items]
Property, plant, and equipment, useful life	40 years
Equipment
Property, Plant and Equipment [Line Items]
Property, plant, and equipment, useful life	15 years
Subtotal	$ 6,435	6,328
Equipment | Minimum
Property, Plant and Equipment [Line Items]
Property, plant, and equipment, useful life	3 years
Equipment | Maximum
Property, Plant and Equipment [Line Items]
Property, plant, and equipment, useful life	7 years
Construction in progress
Property, Plant and Equipment [Line Items]
Subtotal	$ 895	$ 777

X

- Definition

Amount of accumulated depreciation, depletion and amortization for physical assets used in the normal conduct of business to produce goods and services.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 360
-SubTopic 10
-Section 50
-Paragraph 1
-Subparagraph (c)
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-Section S99
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- Definition

The amount of expense recognized in the current period that reflects the allocation of the cost of tangible assets over the assets' useful lives. Includes production and non-production related depreciation.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
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Amount before accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

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+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
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-Topic 210
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Useful life of long lived, physical assets used in the normal conduct of business and not intended for resale, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Examples include, but not limited to, land, buildings, machinery and equipment, office equipment, furniture and fixtures, and computer equipment.

+ References

No definition available.

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