v3.26.1
Related Party and Party-in-Interest Transactions (Details) - EBP 001 - USD ($)
12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
EBP, Master Trust [Line Items]    
Cost of services provided by the Company $ 0 $ 0
Master Trust    
EBP, Master Trust [Line Items]    
Investments at fair value $ 3,898,047,000 3,494,890,000
Master Trust | WEC common stock    
EBP, Master Trust [Line Items]    
Number of Shares Held 5,591,133  
Investments at fair value $ 589,643,827 0
Dividend Income on Investment 20,512,438  
Cost of Investment Acquired 40,037,210  
Investments Sold 68,415,831  
Master Trust | WEC common stock fund    
EBP, Master Trust [Line Items]    
Investments at fair value $ 0 $ 577,106,000
Number of units held   5,958,163
Master Trust | WEC common stock fund | Common Stock    
EBP, Master Trust [Line Items]    
Number of Shares Held   6,073,247
Investments at fair value   $ 571,128,148