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Derivative Financial Instruments (Details) - USD ($) $ in Millions | Jan. 31, 2021 | Jan. 26, 2020
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Derivative Instruments and Hedging Activities Disclosure [Abstract] |  |
Designated as cash flow hedges | $ 840 | $ 428
Not designated for hedge accounting | $ 441 | $ 287

X
- Definition Notional amount of FX forward contract, designated as hedge + References No definition available. + Details
Name: | nvda_NotionalamountofFXforwardcontractdesignatedashedge
Namespace Prefix: | nvda_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Notional amount of FX forward contract, non-designated as hedge + References No definition available. + Details
Name: | nvda_NotionalamountofFXforwardcontractnondesignatedashedge
Namespace Prefix: | nvda_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- References No definition available. + Details
Name: | us-gaap_DerivativeInstrumentsAndHedgingActivitiesDisclosureAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration