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Commitments, Contingencies and Guarantees-JV (Details Textual 1)
 12 Months Ended 12 Months Ended 12 Months Ended
Dec. 28, 2014
USD ($)
Dec. 29, 2013
USD ($)
Dec. 28, 2014
Flash Partners Ltd [Member]
USD ($)
Dec. 29, 2013
Flash Partners Ltd [Member]
USD ($)
Dec. 30, 2012
Flash Partners Ltd [Member]
USD ($)
Dec. 28, 2014
Flash Partners Ltd [Member]
JPY (¥)
Dec. 28, 2014
Flash Alliance Ltd [Member]
USD ($)
Dec. 29, 2013
Flash Alliance Ltd [Member]
USD ($)
Dec. 30, 2012
Flash Alliance Ltd [Member]
USD ($)
Dec. 28, 2014
Flash Alliance Ltd [Member]
JPY (¥)
Dec. 28, 2014
Flash Forward Ltd [Member]
USD ($)
Dec. 28, 2014
Flash Forward Ltd [Member]
JPY (¥)
Dec. 29, 2013
Flash Forward Ltd [Member]
USD ($)
Dec. 28, 2014
Flash Ventures [Member]
USD ($)
Dec. 28, 2014
Flash Ventures [Member]
JPY (¥)
Dec. 28, 2014
Flash Ventures [Member]
SanDisk Corporation [Member]
Dec. 28, 2014
Flash Ventures [Member]
Toshiba Corporation [Member]
Venture Ownership                                  
Firm's ownership in business venture                               49.90%us-gaap_EquityMethodInvestmentOwnershipPercentage
/ sndk_EquityMethodInvestorNameAxis
= sndk_SandiskCorpMember
/ us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis
= us-gaap_EquityMethodInvesteeMember		  
Partner's ownership in venture business                                 50.10%sndk_PartnersOwnershipInVentureBusiness
/ sndk_EquityMethodInvestorNameAxis
= sndk_ToshibaCorpMember
/ us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis
= us-gaap_EquityMethodInvesteeMember
Venture Origination Year     Sep. 10, 2004       Jul. 07, 2006       Jul. 13, 2010 Jul. 13, 2010          
Equity Investments                                  
Notes Receivable, Related Parties, Noncurrent     $ 12,500,000us-gaap_NotesReceivableRelatedPartiesNoncurrent
/ us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis
= sndk_FlashPartnersLtdMember		       $ 292,700,000us-gaap_NotesReceivableRelatedPartiesNoncurrent
/ us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis
= sndk_FlashAllianceLtdMember		       $ 161,900,000us-gaap_NotesReceivableRelatedPartiesNoncurrent
/ us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis
= sndk_FlashForwardLtdMember		            
Equity investment in business venture     167,100,000us-gaap_EquityMethodInvestments
/ us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis
= sndk_FlashPartnersLtdMember		 190,700,000us-gaap_EquityMethodInvestments
/ us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis
= sndk_FlashPartnersLtdMember		     249,500,000us-gaap_EquityMethodInvestments
/ us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis
= sndk_FlashAllianceLtdMember		 284,000,000us-gaap_EquityMethodInvestments
/ us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis
= sndk_FlashAllianceLtdMember		     79,200,000us-gaap_EquityMethodInvestments
/ us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis
= sndk_FlashForwardLtdMember		   66,700,000us-gaap_EquityMethodInvestments
/ us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis
= sndk_FlashForwardLtdMember		        
Cumulative translation adjustments (197,252,000)us-gaap_AccumulatedOtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentNetOfTax (47,440,000)us-gaap_AccumulatedOtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentNetOfTax (7,300,000)us-gaap_AccumulatedOtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentNetOfTax
/ us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis
= sndk_FlashPartnersLtdMember		 17,300,000us-gaap_AccumulatedOtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentNetOfTax
/ us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis
= sndk_FlashPartnersLtdMember		     (45,500,000)us-gaap_AccumulatedOtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentNetOfTax
/ us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis
= sndk_FlashAllianceLtdMember		 (8,700,000)us-gaap_AccumulatedOtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentNetOfTax
/ us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis
= sndk_FlashAllianceLtdMember		     (28,400,000)us-gaap_AccumulatedOtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentNetOfTax
/ us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis
= sndk_FlashForwardLtdMember		   (16,200,000)us-gaap_AccumulatedOtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentNetOfTax
/ us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis
= sndk_FlashForwardLtdMember		        
Equity Method Investment Difference Between Carrying Amount And Underlying Equity (Basis Adjustment)     0sndk_EquityMethodInvestmentDifferenceBetweenCarryingAmountAndUnderlyingEquityBasisAdjustment
/ us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis
= sndk_FlashPartnersLtdMember		 1,200,000sndk_EquityMethodInvestmentDifferenceBetweenCarryingAmountAndUnderlyingEquityBasisAdjustment
/ us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis
= sndk_FlashPartnersLtdMember		 3,000,000sndk_EquityMethodInvestmentDifferenceBetweenCarryingAmountAndUnderlyingEquityBasisAdjustment
/ us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis
= sndk_FlashPartnersLtdMember		   0sndk_EquityMethodInvestmentDifferenceBetweenCarryingAmountAndUnderlyingEquityBasisAdjustment
/ us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis
= sndk_FlashAllianceLtdMember		 6,500,000sndk_EquityMethodInvestmentDifferenceBetweenCarryingAmountAndUnderlyingEquityBasisAdjustment
/ us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis
= sndk_FlashAllianceLtdMember		 15,200,000sndk_EquityMethodInvestmentDifferenceBetweenCarryingAmountAndUnderlyingEquityBasisAdjustment
/ us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis
= sndk_FlashAllianceLtdMember		                
Master Lease Agreements                                  
Guarantee of Flash Ventures equipment leases (1) 550,964,000us-gaap_GuaranteeObligationsMaximumExposure [1] 492,000,000us-gaap_GuaranteeObligationsMaximumExposure 80,973,000us-gaap_GuaranteeObligationsMaximumExposure
/ us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis
= sndk_FlashPartnersLtdMember		     9,700,000,000us-gaap_GuaranteeObligationsMaximumExposure
/ us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis
= sndk_FlashPartnersLtdMember		 306,941,000us-gaap_GuaranteeObligationsMaximumExposure
/ us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis
= sndk_FlashAllianceLtdMember		     37,000,000,000us-gaap_GuaranteeObligationsMaximumExposure
/ us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis
= sndk_FlashAllianceLtdMember		 163,050,000us-gaap_GuaranteeObligationsMaximumExposure
/ us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis
= sndk_FlashForwardLtdMember		 19,700,000,000us-gaap_GuaranteeObligationsMaximumExposure
/ us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis
= sndk_FlashForwardLtdMember		   550,964,000us-gaap_GuaranteeObligationsMaximumExposure
/ us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis
= us-gaap_EquityMethodInvesteeMember		 66,400,000,000us-gaap_GuaranteeObligationsMaximumExposure
/ us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis
= us-gaap_EquityMethodInvesteeMember		    
Master Lease Covenants                                  
Joint Venture Master Equipment Lease Agreement Guarantor Equity Covenant                           $ 1,510,000,000sndk_JointVentureMasterEquipmentLeaseAgreementGuarantorEquityCovenant
/ us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis
= us-gaap_EquityMethodInvesteeMember		      
[1] The Company’s guarantee obligation, net of cumulative lease payments, was 66.4 billion Japanese yen, or approximately $551 million based upon the exchange rate at December 28, 2014.