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CONTRACT ASSETS AND LIABILITIES (Tables)
6 Months Ended
Dec. 31, 2021
Regulated Operations [Abstract]  
Costs and Estimated Earnings on Uncompleted Contracts
          
   December 31,   2021  June 30,    2021
Costs incurred on uncompleted contracts  $339   $295 
Estimated earnings   524    568 
Costs and estimated earnings on uncompleted contracts   863    863 
Less: Billings to date   878    878 
Total costs and estimated earnings on uncompleted contracts  $(15)  $(15)