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Other Intangible Assets, Net (Detail) (USD $)
In Millions, unless otherwise specified
 12 Months Ended
Jan. 31, 2015
Feb. 01, 2014
Intangible Assets by Major Class [Line Items]    
Amortized intangible assets, Gross value $ 156us-gaap_FiniteLivedIntangibleAssetsGross [1] $ 184us-gaap_FiniteLivedIntangibleAssetsGross [1]
Amortized intangible assets, Accum. amort. (132)us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization [1] (151)us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization [1]
Amortized intangible assets, Net value 24us-gaap_FiniteLivedIntangibleAssetsNet [1] 33us-gaap_FiniteLivedIntangibleAssetsNet [1]
Amortized intangible assets, Wtd. Avg. Life in Years 14 years 2 months 12 days [1],[2]  
Indefinite life intangible assets, Net Value 25us-gaap_IndefiniteLivedIntangibleAssetsExcludingGoodwill [1] 34us-gaap_IndefiniteLivedIntangibleAssetsExcludingGoodwill [1]
Other intangible assets, net 49us-gaap_IntangibleAssetsNetExcludingGoodwill 67us-gaap_IntangibleAssetsNetExcludingGoodwill
Lease acquisition costs    
Intangible Assets by Major Class [Line Items]    
Amortized intangible assets, Gross value 128us-gaap_FiniteLivedIntangibleAssetsGross
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= us-gaap_LeaseAgreementsMember		 [1] 155us-gaap_FiniteLivedIntangibleAssetsGross
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= us-gaap_LeaseAgreementsMember		 [1]
Amortized intangible assets, Accum. amort. (116)us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= us-gaap_LeaseAgreementsMember		 [1] (137)us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= us-gaap_LeaseAgreementsMember		 [1]
Amortized intangible assets, Net value 12us-gaap_FiniteLivedIntangibleAssetsNet
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= us-gaap_LeaseAgreementsMember		 [1] 18us-gaap_FiniteLivedIntangibleAssetsNet
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= us-gaap_LeaseAgreementsMember		 [1]
Amortized intangible assets, Wtd. Avg. Life in Years 12 years [1],[2]  
Trademark    
Intangible Assets by Major Class [Line Items]    
Amortized intangible assets, Gross value 21us-gaap_FiniteLivedIntangibleAssetsGross
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= us-gaap_TrademarksMember		 [1] 21us-gaap_FiniteLivedIntangibleAssetsGross
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= us-gaap_TrademarksMember		 [1]
Amortized intangible assets, Accum. amort. (12)us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= us-gaap_TrademarksMember		 [1] (11)us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= us-gaap_TrademarksMember		 [1]
Amortized intangible assets, Net value 9us-gaap_FiniteLivedIntangibleAssetsNet
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= us-gaap_TrademarksMember		 [1] 10us-gaap_FiniteLivedIntangibleAssetsNet
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= us-gaap_TrademarksMember		 [1]
Amortized intangible assets, Wtd. Avg. Life in Years 19 years 8 months 12 days [1],[2]  
Favorable leases    
Intangible Assets by Major Class [Line Items]    
Amortized intangible assets, Gross value 7us-gaap_FiniteLivedIntangibleAssetsGross
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= fl_FavorableLeasesAndOtherMember		 [1] 8us-gaap_FiniteLivedIntangibleAssetsGross
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= fl_FavorableLeasesAndOtherMember		 [1]
Amortized intangible assets, Accum. amort. (4)us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= fl_FavorableLeasesAndOtherMember		 [1] (3)us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= fl_FavorableLeasesAndOtherMember		 [1]
Amortized intangible assets, Net value 3us-gaap_FiniteLivedIntangibleAssetsNet
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= fl_FavorableLeasesAndOtherMember		 [1] 5us-gaap_FiniteLivedIntangibleAssetsNet
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= fl_FavorableLeasesAndOtherMember		 [1]
Amortized intangible assets, Wtd. Avg. Life in Years 7 years 4 months 24 days [1],[2]  
Runners Point Group    
Intangible Assets by Major Class [Line Items]    
Indefinite life intangible assets, Net Value 25us-gaap_IndefiniteLivedIntangibleAssetsExcludingGoodwill
/ us-gaap_IndefiniteLivedIntangibleAssetsByMajorClassAxis
= fl_RunnersPointGroupMember		 [1],[3] 30us-gaap_IndefiniteLivedIntangibleAssetsExcludingGoodwill
/ us-gaap_IndefiniteLivedIntangibleAssetsByMajorClassAxis
= fl_RunnersPointGroupMember		 [1],[3]
Other trademarks    
Intangible Assets by Major Class [Line Items]    
Indefinite life intangible assets, Net Value $ 0us-gaap_IndefiniteLivedIntangibleAssetsExcludingGoodwill
/ us-gaap_IndefiniteLivedIntangibleAssetsByMajorClassAxis
= fl_OtherTrademarksMember		 [1],[4] $ 4us-gaap_IndefiniteLivedIntangibleAssetsExcludingGoodwill
/ us-gaap_IndefiniteLivedIntangibleAssetsByMajorClassAxis
= fl_OtherTrademarksMember		 [1],[4]
[1] Includes the effect of foreign currency translation related primarily to the movements of the euro in relation to the U.S. dollar.
[2] The weighted-average useful life disclosed excludes those assets that are fully amortized.
[3] Includes the effect of foreign currency translation and a non-cash impairment charge of $1 million recorded in the fourth quarter of 2014. This impairment charge is described more fully in Note 3, Impairment Charges.
[4] During 2014, the values of other trademarks were fully impaired. Impairment charges of $3 million and $7 million were recorded in 2014 and 2012, respectively, and are described more fully in Note 3, Impairment Charges.