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RETIREMENT AND POSTRETIREMENT BENEFIT PLANS - Benefit Payments (Details)
$ in Millions
12 Months Ended
Dec. 31, 2016
USD ($)
Defined Benefit Plan Disclosure  
Expected contribution to defined benefit pension plans during 2017 $ 9
Pension Benefits  
Estimated future benefit payments  
2017 18
2018 9
2019 5
2020 5
2021 5
2022 - 2026 20
Postretirement Benefits  
Estimated future benefit payments  
2017 3
2018 3
2019 3
2020 3
2021 4
2022 - 2026 $ 21