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Acquisitions and Acquisition-Related Items - Fair Value Measurement, Contingent Consideration, Significant Unobservable Inputs (Details) - USD ($) $ in Millions	3 Months Ended
	Jul. 28, 2017	Apr. 28, 2017	Jul. 29, 2016	Apr. 29, 2016
Fair Value Inputs, Liabilities, Quantitative Information [Line Items]
Contingent consideration, fair value	$ 242	$ 246	$ 379	$ 377
Revenue-based payments | Recurring | Level 3 | Discounted cash flow
Fair Value Inputs, Liabilities, Quantitative Information [Line Items]
Contingent consideration, fair value	$ 103
Revenue-based payments | Minimum | Recurring | Level 3 | Discounted cash flow
Fair Value Inputs
Discount rate	11.00%
Probability of payment	30.00%
Revenue-based payments | Maximum | Recurring | Level 3 | Discounted cash flow
Fair Value Inputs
Discount rate	32.50%
Probability of payment	100.00%
Product development-based payments | Recurring | Level 3 | Discounted cash flow
Fair Value Inputs, Liabilities, Quantitative Information [Line Items]
Contingent consideration, fair value	$ 139
Product development-based payments | Minimum | Recurring | Level 3 | Discounted cash flow
Fair Value Inputs
Discount rate	0.30%
Probability of payment	75.00%
Product development-based payments | Maximum | Recurring | Level 3 | Discounted cash flow
Fair Value Inputs
Discount rate	5.50%
Probability of payment	100.00%

X

- Definition

Percentage of likelihood a loan will be repaid, used as an input to measure fair value.

+ References

No definition available.

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- Definition

Amount of liability recognized arising from contingent consideration in a business combination.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 30
-Section 50
-Paragraph 1
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=35744584&loc=d3e6927-128479

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 30
-Section 35
-Paragraph 1
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=6911338&loc=d3e6819-128478

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 30
-Section 25
-Paragraph 6
-URI http://asc.fasb.org/extlink&oid=6911189&loc=d3e6408-128476

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- Definition

Interest rate used to find the present value of an amount to be paid or received in the future as an input to measure fair value. For example, but not limited to, weighted average cost of capital (WACC), cost of capital, cost of equity and cost of debt.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 2
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-URI http://asc.fasb.org/extlink&oid=66048111&loc=d3e19207-110258

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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.

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