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COMMITMENTS AND CONTINGENCIES (Details)
4 Months Ended
Sep. 30, 2019
USD ($)
claim
Dec. 31, 2018
USD ($)
Debt Instrument [Line Items]    
Litigation reserves $ 1,000,000 $ 1,000,000
Self-insurance reserves 132,000,000 $ 125,000,000
Secured Receivables Credit Facility    
Debt Instrument [Line Items]    
Letters of credit outstanding, amount $ 71,000,000  
AMAC Data Security Incident    
Loss Contingencies [Line Items]    
Class action lawsuits | claim 39  
Letter of Credit | Revolving Credit Facility    
Debt Instrument [Line Items]    
Credit facility capacity $ 150,000,000  
Letter of Credit | Secured Receivables Credit Facility    
Debt Instrument [Line Items]    
Credit facility capacity $ 100,000,000