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Borrowing Facilities and Long-Term Debt (Details Textual) (USD $)
Jan. 25, 2015
Oct. 26, 2014
Dec. 31, 2014
Line of Credit Facility [Line Items]      
Available revolving credit agreement $ 1,600,000,000.0us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity    
Outstanding credit facilities 0us-gaap_LineOfCreditFacilityAmountOutstanding 0us-gaap_LineOfCreditFacilityAmountOutstanding  
Revolving Credit [Member]      
Line of Credit Facility [Line Items]      
Available revolving credit agreement 1,500,000,000.0us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity
/ us-gaap_CreditFacilityAxis
= us-gaap_RevolvingCreditFacilityMember		    
Foreign Line of Credit [Member]      
Line of Credit Facility [Line Items]      
Available revolving credit agreement 68,000,000us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity
/ us-gaap_CreditFacilityAxis
= us-gaap_ForeignLineOfCreditMember		    
Amended Revolving Credit Facility [Member] | Revolving Credit [Member]      
Line of Credit Facility [Line Items]      
Available revolving credit agreement     $ 1,500,000,000.0us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity
/ us-gaap_CreditFacilityAxis
= us-gaap_RevolvingCreditFacilityMember
/ us-gaap_DebtInstrumentAxis
= amat_AmendedRevolvingCreditFacilityMember