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Notes Payable and Long-Term Debt (Details) (Commercial paper, USD $)
In Millions, unless otherwise specified
 3 Months Ended
May 02, 2015
May 03, 2014
Commercial paper
    
Debt Instrument Line Items    
Maximum daily amount outstanding during the period $ 0us-gaap_ShorttermDebtMaximumAmountOutstandingDuringPeriod
/ us-gaap_ShortTermDebtTypeAxis
= us-gaap_CommercialPaperMember		 $ 590us-gaap_ShorttermDebtMaximumAmountOutstandingDuringPeriod
/ us-gaap_ShortTermDebtTypeAxis
= us-gaap_CommercialPaperMember
Average daily amount outstanding during the period 0us-gaap_ShorttermDebtAverageOutstandingAmount
/ us-gaap_ShortTermDebtTypeAxis
= us-gaap_CommercialPaperMember		 279us-gaap_ShorttermDebtAverageOutstandingAmount
/ us-gaap_ShortTermDebtTypeAxis
= us-gaap_CommercialPaperMember
Amount outstanding at period-end $ 0us-gaap_ShortTermBorrowings
/ us-gaap_ShortTermDebtTypeAxis
= us-gaap_CommercialPaperMember		 $ 386us-gaap_ShortTermBorrowings
/ us-gaap_ShortTermDebtTypeAxis
= us-gaap_CommercialPaperMember
Weighted average interest rate 0.00%tgt_WeightedAverageInterestRateShortTermDebt
/ us-gaap_ShortTermDebtTypeAxis
= us-gaap_CommercialPaperMember		 0.10%tgt_WeightedAverageInterestRateShortTermDebt
/ us-gaap_ShortTermDebtTypeAxis
= us-gaap_CommercialPaperMember