Document and Entity Information - USD ($) $ in Billions	12 Months Ended
	Feb. 03, 2023	Mar. 22, 2023	Jul. 29, 2022
Document and Entity Information
Document Type	10-K
Document Annual Report	true
Document Transition Report	false
Document Period End Date	Feb. 03, 2023
Entity File Number	001-11421
Entity Registrant Name	DOLLAR GENERAL CORPORATION
Entity Incorporation, State or Country Code	TN
Entity Tax Identification Number	61-0502302
Entity Address, Address Line One	100 MISSION RIDGE
Entity Address, City or Town	GOODLETTSVILLE
Entity Address, State or Province	TN
Entity Address, Postal Zip Code	37072
City Area Code	615
Local Phone Number	855-4000
Title of 12(b) Security	Common Stock, par value $0.875 per share
Trading Symbol	DG
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
ICFR Auditor Attestation Flag	true
Entity Shell Company	false
Entity Common Stock, Shares Outstanding		219,108,477
Entity Public Float			$ 55.9
Current Fiscal Year End Date	--02-03
Document Fiscal Year Focus	2022
Document Fiscal Period Focus	FY
Entity Central Index Key	0000029534
Amendment Flag	false
Auditor Name	Ernst & Young LLP
Auditor Firm ID	42
Auditor Location	Nashville, Tennessee