Document - USD ($)	12 Months Ended
	Feb. 01, 2020	Mar. 25, 2020	Aug. 02, 2019
Cover page.
Document Type	10-K
Document Annual Report	true
Document Period End Date	Feb. 01, 2020
Document Transition Report	false
Entity File Number	001-12107
Entity Registrant Name	Abercrombie & Fitch Co.
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	31-1469076
Entity Address, Address Line One	6301 Fitch Path
Entity Address, City or Town	New Albany
Entity Address, State or Province	OH
Entity Address, Postal Zip Code	43054
City Area Code	614
Local Phone Number	283-6500
Title of 12(b) Security	Class A Common Stock, $0.01 Par Value
Trading Symbol	ANF
Security Exchange Name	NYSE
Entity Well-known Seasoned Issuer	Yes
Entity Voluntary Filers	No
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Large Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Public Float			$ 1,094,286,286
Entity Common Stock, Shares Outstanding		61,597,673
Documents Incorporated by Reference	Portions of the Registrant’s definitive proxy statement for the Annual Meeting of Stockholders, to be held on May 20, 2020, are incorporated by reference into Part III of this Annual Report on Form 10-K. Portions of the Registrant’s Annual Report on Form 10-K for Fiscal 2018, filed with the SEC on April 1, 2019, are incorporated by reference into Part II of this Annual Report on Form 10-K.
Entity Central Index Key	0001018840
Amendment Flag	false
Document Fiscal Year Focus	2019
Document Fiscal Period Focus	FY
Current Fiscal Year End Date	--02-01