Schedule II - Valuation and Qualifying Accounts

12 Months Ended

Dec. 31, 2020

SEC Schedule, 12-09, Valuation and Qualifying Accounts [Abstract]

SCHEDULE II - VALUATION AND QUALIFYING ACCOUNTS

SCHEDULE II

WEC ENERGY GROUP, INC.

VALUATION AND QUALIFYING ACCOUNTS

Allowance for Doubtful Accounts (in millions)	Balance at Beginning of Period		Expense (1)		Deferral		Net Write-offs (2)		Sale of Business		Balance at End of Period
December 31, 2020	$	140.0	$	102.8	$	55.3	$	(77.9)	$	(0.1)	$	220.1
December 31, 2019	149.2		85.8		11.4		(106.4)		—		140.0
December 31, 2018	143.2		94.7		(5.5)		(83.2)		—		149.2

(1)    Net of recoveries.

(2)    Represents amounts written off to the reserve, net of adjustments to regulatory assets.