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RETIREMENT AND DEFERRED COMPENSATION PLANS - Expected Future Benefit Payment (Detail)
$ in Millions
Dec. 31, 2017
USD ($)
Pension Benefits  
Defined Benefit Plan Disclosure [Line Items]  
2018 $ 3
2019 3
2020 4
2021 4
2022 4
Years 2023-2027 21
Postretirement Benefits  
Defined Benefit Plan Disclosure [Line Items]  
2018 2
2019 2
2020 2
2021 2
2022 2
Years 2023-2027 $ 8