v3.22.2.2
Document and Entity Information Document
Nov. 28, 2022
Cover [Abstract]  
Document Type 8-K
Document Period End Date Nov. 28, 2022
Entity Registrant Name FEDERAL HOME LOAN BANK OF CHICAGO
Entity Central Index Key 0001331451
Amendment Flag false
Entity Incorporation, State or Country Code X1
Entity File Number 000-51401
Entity Tax Identification Number 36-6001019
Entity Address, Address Line One 433 West Van Buren Street, Suite 501S
Entity Address, City or Town Chicago,
Entity Address, State or Province IL
Entity Address, Postal Zip Code 60607
City Area Code 312
Local Phone Number 565-5700
Written Communications false
Soliciting Material false
Pre-commencement Tender Offer false
Pre-commencement Issuer Tender Offer false
Entity Emerging Growth Company false