COVER PAGE - USD ($)	12 Months Ended
	Dec. 31, 2022	Jan. 31, 2023	Jun. 30, 2022
Cover [Abstract]
Document Type	10-K
Document Annual Report	true
Document Period End Date	Dec. 31, 2022
Document Transition Report	false
Entity File Number	001-03016
Entity Registrant Name	WISCONSIN PUBLIC SERVICE CORPORATION
Entity Tax Identification Number	39-0715160
Entity Incorporation, State or Country Code	WI
Entity Address, Address Line One	2830 South Ashland Avenue
Entity Address, Address Line Two	P.O. Box 19001
Entity Address, City or Town	Green Bay
Entity Address, State or Province	WI
Entity Address, Postal Zip Code	54307-9001
City Area Code	800
Local Phone Number	450-7260
Entity Well-known Seasoned Issuer	No
Entity Voluntary Filers	No
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Non-accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
ICFR Auditor Attestation Flag	false
Entity Shell Company	false
Entity Public Float			$ 0
Entity Common Stock, Shares Outstanding		23,896,962
Entity Central Index Key	0000107833
Current Fiscal Year End Date	--12-31
Document Fiscal Year Focus	2022
Document Fiscal Period Focus	FY
Amendment Flag	false