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Derivatives and Currency Exchange Risk Management - Derivative (Gains) Losses Not Designated as Hedging Instruments (Details) - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended
--- | --- | ---
Oct. 30, 2020 | Oct. 25, 2019 | Oct. 30, 2020 | Oct. 25, 2019
Derivative Instruments, (Gain) Loss [Line Items] |  |  |  |
Total | $ (3) | $ (11) | $ 97 | $ (10)
Other operating expense, net | Currency exchange rate contracts |  |  |  |
Derivative Instruments, (Gain) Loss [Line Items] |  |  |  |
Total | (2) | (12) | 125 | (6)
Other operating expense, net | Total return swaps |  |  |  |
Derivative Instruments, (Gain) Loss [Line Items] |  |  |  |
Total | $ (1) | $ 1 | $ (28) | $ (4)

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- Definition Amount of gain (loss) recognized in earnings in the period from the increase (decrease) in fair value of foreign currency derivatives not designated as hedging instruments. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4A -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=121590274&loc=SL5618551-113959 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4C -Subparagraph (e) -URI http://asc.fasb.org/extlink&oid=121590274&loc=SL5624171-113959 + Details
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