Cover Page - shares	9 Months Ended
	Sep. 30, 2021	Oct. 28, 2021
Entity Information [Line Items]
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Sep. 30, 2021
Document Transition Report	false
Entity File Number	0-39680
Entity Registrant Name	FULTON FINANCIAL CORP
Entity Incorporation, State or Country Code	PA
Entity Tax Identification Number	23-2195389
Entity Address, Address Line One	One Penn Square
Entity Address, City or Town	Lancaster,
Entity Address, State or Province	PA
Entity Address, Postal Zip Code	17602
City Area Code	717
Local Phone Number	291-2411
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 Common Stock, Shares Outstanding		161,304,000
Entity Central Index Key	0000700564
Current Fiscal Year End Date	--12-31
Document Fiscal Year Focus	2021
Document Fiscal Period Focus	Q3
Amendment Flag	false
Common Stock, par value $2.50
Entity Information [Line Items]
Title of 12(b) Security	Common Stock, par value $2.50
Trading Symbol	FULT
Security Exchange Name	NASDAQ
Depositary Shares, Each Representing 1/40th Interest in a Share of Fixed Rate Non-Cumulative Perpetual Preferred Stock, Series A
Entity Information [Line Items]
Title of 12(b) Security	Depositary Shares, Each Representing 1/40th Interest in a Share of Fixed Rate Non-Cumulative Perpetual Preferred Stock, Series A
Trading Symbol	FULTP
Security Exchange Name	NASDAQ