XML 55 R41.htm IDEA: XBRL DOCUMENT v3.22.0.1
Schedule II - Valuation and Qualifying Accounts
12 Months Ended
Dec. 31, 2021
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 BusinessBalance at End of Period
December 31, 2021$220.1 $107.4 $(44.8)$(84.4)$ $198.3 
December 31, 2020140.0 102.8 55.3 (77.9)(0.1)220.1 
December 31, 2019149.2 85.8 11.4 (106.4)— 140.0 

(1)    Net of recoveries.

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