v3.22.4
Cover Page Cover Page
Jan. 26, 2023
Entity Information [Line Items]  
Document Type 8-K
Document Period End Date Jan. 26, 2023
Entity Registrant Name Associated Banc-Corp
Entity Incorporation, State or Country Code WI
Entity File Number 001-31343
Entity Tax Identification Number 39-1098068
Entity Address, Address Line One 433 Main Street
Entity Address, City or Town Green Bay
Entity Address, State or Province WI
Entity Address, Postal Zip Code 54301
City Area Code 920
Local Phone Number 491-7500
Written Communications false
Soliciting Material false
Pre-commencement Tender Offer false
Pre-commencement Issuer Tender Offer false
Entity Emerging Growth Company false
Entity Central Index Key 0000007789
Amendment Flag false
NEW YORK STOCK EXCHANGE, INC.  
Entity Information [Line Items]  
Title of 12(b) Security Common stock, par value $0.01 per share
Trading Symbol ASB
Security Exchange Name NYSE
Series E Preferred Stock | NEW YORK STOCK EXCHANGE, INC.  
Entity Information [Line Items]  
Title of 12(b) Security Depositary Shrs, each representing 1/40th intrst in a shr of 5.875% Non-Cum. Perp Pref Stock, Srs E
Trading Symbol ASB PrE
Security Exchange Name NYSE
Series F Preferred Stock [Member] | NEW YORK STOCK EXCHANGE, INC.  
Entity Information [Line Items]  
Title of 12(b) Security Depositary Shrs, each representing 1/40th intrst in a shr of 5.625% Non-Cum. Perp Pref Stock, Srs F
Trading Symbol ASB PrF
Security Exchange Name NYSE