v3.22.2.2
Cover
Dec. 05, 2022
Cover [Abstract]  
Document Type 8-K
Entity Registrant Name FEDERAL HOME LOAN BANK OF SAN FRANCISCO
Entity File Number 000-51398
Entity Tax Identification Number 94-6000630
Entity Address, Address Line One 333 Bush Street, Suite 2700
Entity Address, City or Town San Francisco
Entity Address, State or Province CA
Entity Address, Postal Zip Code 94104
City Area Code (415)
Local Phone Number 616-1000
Written Communications false
Soliciting Material false
Pre-commencement Tender Offer false
Pre-commencement Issuer Tender Offer false
Document Period End Date Dec. 05, 2022
Entity Central Index Key 0001316944
Amendment Flag false
Entity Incorporation, State or Country Code X1
Entity Emerging Growth Company false