SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details)		3 Months Ended	12 Months Ended
		May 05, 2018 USD ($)	Feb. 02, 2019 USD ($) voting_right / shares $ / shares shares	Feb. 03, 2018 USD ($) $ / shares shares	Jan. 28, 2017 USD ($) shares	Jan. 30, 2016 USD ($)
Accounting Policies [Line Items]
Increase (Decrease) in Gift Card Liability			$ 62,900,000
Interest Expense			$ 22,788,000	$ 22,973,000	$ 23,078,000
Additional Time Period In Which Forecasted Transaction Is Not Expected To Occur			2 months
Maturity Period Of Cash Equivalents			3 months
Stores and distribution expense
Handling costs			$ 37,800,000	38,600,000	41,500,000
Other operating income, net
Foreign currency transaction gain (loss), before tax			5,300,000	7,000,000	400,000
Proceeds from Legal Settlements				12,300,000
Advertising costs
Advertising expense			136,600,000	116,500,000	110,100,000
Leases
Fixed minimum (1)	[1]		365,229,000	373,457,000	408,575,000
Contingent			18,189,000	14,752,000	11,690,000
Deferred lease credits amortization			(21,320,000)	(22,149,000)	(24,557,000)
Total store rent expense			362,098,000	366,060,000	395,708,000
Buildings, equipment and other			8,800,000	9,752,000	5,772,000
Total rent expense			370,898,000	375,812,000	401,480,000
Lease Termination Fees			4,000,000	2,000,000	15,500,000
Leasehold financing obligations			46,337,000	50,653,000
Financing Interest Expense			$ 5,500,000	$ 5,500,000	$ 5,700,000
Share-based Compensation Arrangement by Share-based Payment award Target Percentage of Equity Awards Earned			100.00%
Operating Lease Commitments Under Non-Cancelable Leases:
Fiscal 2019			$ 367,622,000
Fiscal 2020			304,270,000
Fiscal 2021			205,542,000
Fiscal 2022			159,617,000
Fiscal 2023			128,626,000
Thereafter			$ 310,003,000
Weighted Average Shares Outstanding:
Shares of Common Stock issued (in shares) | shares			103,300,000	103,300,000	103,300,000
Treasury shares (in shares) | shares			(35,950,000)	(34,909,000)	(35,422,000)
Weighted-Average - basic shares (in shares) | shares			67,350,000	68,391,000	67,878,000
Dilutive effect of share-based compensation awards (in shares) | shares			1,787,000	1,012,000	406,000
Weighted-Average - diluted shares (in shares) | shares			69,137,000	69,403,000	68,284,000
Anti-Dilutive shares (in shares) | shares	[2]		1,838,000	5,379,000	6,107,000
Maximum Remaining Maturity of Foreign Currency Derivatives			12 months
Cash and Cash Equivalents, at Carrying Value			$ 723,135,000	$ 675,558,000	$ 547,189,000
Restricted Cash and Cash Equivalents	[3]		22,694,000	22,397,000	20,443,000
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents			745,829,000	697,955,000	567,632,000	$ 609,159,000
Interest Income, Other			(11,789,000)	(6,084,000)	(4,412,000)
Interest Income (Expense), Net			(10,999,000)	(16,889,000)	(18,666,000)
Gift card liability		$ 22,700,000	26,062,000	28,939,000
Revenue Recognition, Deferred Revenue [Policy Text Block]		6,200,000.0	6,944,000
Gift Card Breakage			4,700,000	6,400,000	10,300,000
Customer Loyalty Program Liability, Current		$ 16,000,000	19,900,000
Increase (Decrease) in Customer Loyalty Program Liability			36,300,000
Direct-to-Consumer Operations [Member]
Stores and distribution expense
Shipping and handling costs			$ 163,800,000	$ 150,700,000	$ 125,400,000
Common Class A
Stockholders' equity
Common stock, shares authorized | shares			150,000,000	150,000,000
Common stock, par value (in dollars per share) | $ / shares			$ 0.01	$ 0.01
Common stock, shares outstanding | shares			66,200,000	68,200,000
Common stock, voting rights per share | voting_right / shares			1
Common Class B [Member]
Stockholders' equity
Common stock, shares authorized | shares			106,400,000	106,400,000.0
Common stock, par value (in dollars per share) | $ / shares			$ 0.01	$ 0.01
Common stock, shares outstanding | shares			0	0
Common stock, voting rights per share | voting_right / shares			3
Maximum [Member]
Leases
Committed Non-cancelable Leases with Remaining Terms, Number of Years			12 years
Building [Member]
Property and equipment
Useful life			30 years
Leasehold Improvements and Furniture and Fixtures [Member] | Minimum [Member]
Property and equipment
Useful life			3 years
Leasehold Improvements and Furniture and Fixtures [Member] | Maximum [Member]
Property and equipment
Useful life			15 years
Information Technology [Member] | Minimum [Member]
Property and equipment
Useful life			3 years
Information Technology [Member] | Maximum [Member]
Property and equipment
Useful life			7 years
Furniture and Fixtures [Member] | Minimum [Member]
Property and equipment
Useful life			3 years
Furniture and Fixtures [Member] | Maximum [Member]
Property and equipment
Useful life			15 years
Other Property and Equipment [Member] | Minimum [Member]
Property and equipment
Useful life			3 years
Other Property and Equipment [Member] | Maximum [Member]
Property and equipment
Useful life			20 years
Internal-use Software [Member] | Maximum [Member]
Property and equipment
Useful life			7 years
Vietnam [Domain]
Accounting Policies [Line Items]
Concentration Risk, Geographic			0.29	0.24	0.21
CHINA
Accounting Policies [Line Items]
Concentration Risk, Geographic			0.36	0.42	0.42
Performance-based Restricted Stock Units (RSUs) [Member] | Minimum [Member]
Leases
Share-based Compensation Arrangement by Share-based Payment award Target Percentage of Equity Awards Earned			0.00%
Performance-based Restricted Stock Units (RSUs) [Member] | Maximum [Member]
Leases
Share-based Compensation Arrangement by Share-based Payment award Target Percentage of Equity Awards Earned			200.00%

[1] Includes lease termination fees of $4.0 million, $2.0 million and $15.5 million for Fiscal 2018, Fiscal 2017 and Fiscal 2016, respectively.

[2] Reflects the total number of shares related to outstanding share-based compensation awards that have been excluded from the computation of net income per diluted share attributable to A&F because the impact would have been anti-dilutive.

[3] (1) Restricted cash and equivalents includes various cash deposits with international banks that are used as collateral for customary non-debt banking commitments, deposits into trust accounts to conform to standard insurance security requirements and other investments including time deposits, U.S. treasury bills and money market funds.