COVER PAGE	9 Months Ended
	Sep. 30, 2020 shares
Cover [Abstract]
Document type	10-Q
Document Quarterly Report	true
Document period end date	Sep. 30, 2020
Document Transition Report	false
Entity File Number	001-01245
Entity registrant name	WISCONSIN ELECTRIC POWER COMPANY
Entity Tax Identification Number	39-0476280
Entity Incorporation, State or Country Code	WI
Entity Address, Address Line One	231 West Michigan Street
Entity Address, Address Line Two	P.O. Box 2046
Entity Address, City or Town	Milwaukee
Entity Address, State or Province	WI
Entity Address, Postal Zip Code	53201
City Area Code	414
Local Phone Number	221-2345
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity filer category	Non-accelerated Filer
Small business	false
Emerging growth company	false
Entity Shell Company	false
Entity common stock, shares outstanding	33,289,327
Entity central index key	0000107815
Current fiscal year end date	--12-31
Document fiscal year focus	2020
Document fiscal period focus	Q3
Amendment flag	false