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CONTINGENCIES (Details) - SEPTA Class Action
$ in Millions
Nov. 07, 2022
USD ($)
May 25, 2012
defendant
Settled Litigation | Subsequent Event    
Loss Contingencies [Line Items]    
Litigation settlement amount awarded to plaintiffs | $ $ 15.0  
Litigation settlement | $ $ 13.0  
Independent Current and Former Directors    
Loss Contingencies [Line Items]    
Number of defendants | defendant   9
Current and Former Officers    
Loss Contingencies [Line Items]    
Number of defendants | defendant   3