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DERIVATIVE INSTRUMENTS AND HEDGING ACTIVITIES - Schedule of Outstanding Foreign Exchange Contracts (Details) (Foreign-Exchange Forwards, USD $)
In Millions, unless otherwise specified
 12 Months Ended
Jan. 31, 2015
Feb. 01, 2014
Short-term cross-currency intercompany loans
    
Derivative [Line Items]    
Effective Date Varies  
Maturity Date Varies  
Notional Amount $ 98invest_DerivativeNotionalAmount
/ us-gaap_DerivativeByNatureAxis
= tru_ShortTermCrossCurrencyIntercompanyLoansMember
/ us-gaap_DerivativeInstrumentRiskAxis
= us-gaap_ForeignExchangeContractMember		 $ 104invest_DerivativeNotionalAmount
/ us-gaap_DerivativeByNatureAxis
= tru_ShortTermCrossCurrencyIntercompanyLoansMember
/ us-gaap_DerivativeInstrumentRiskAxis
= us-gaap_ForeignExchangeContractMember
Merchandise purchases
    
Derivative [Line Items]    
Effective Date Varies  
Maturity Date Varies  
Notional Amount $ 0invest_DerivativeNotionalAmount
/ us-gaap_DerivativeByNatureAxis
= tru_MerchandisePurchasesMember
/ us-gaap_DerivativeInstrumentRiskAxis
= us-gaap_ForeignExchangeContractMember		 $ 0invest_DerivativeNotionalAmount
/ us-gaap_DerivativeByNatureAxis
= tru_MerchandisePurchasesMember
/ us-gaap_DerivativeInstrumentRiskAxis
= us-gaap_ForeignExchangeContractMember