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RETIREMENT AND POSTRETIREMENT BENEFIT PLANS (Schedule of Estimated Future Benefit Payments) (Details) - Master Defined Benefit Retirement Plan [Member]
$ in Millions
Sep. 30, 2016
USD ($)
Estimated Future Benefit Payments  
2017 $ 13.3
2018 13.4
2019 14.0
2020 14.6
2021 15.4
2022 - 2026 $ 88.6