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LEGAL PROCEEDINGS AND CONTINGENCIES (Details)
$ in Millions
1 Months Ended 6 Months Ended
Mar. 31, 2016
party
Sep. 30, 2019
USD ($)
Jan. 03, 2020
USD ($)
Exelis | Passaic River Alaska      
Loss Contingencies [Line Items]      
Number of potentially responsible parties notified (over 100) | party 100    
Estimated cost for all participating parties of EPA's preferred alternative     $ 1,380
U.S. Export Control Violations | Settled Litigation      
Loss Contingencies [Line Items]      
Civil penalty amount   $ 13  
Civil penalty payment period   3 years  
Civil penalty suspended amount conditioned to remedial compliance   $ 7