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EMPLOYEE BENEFIT PLANS - FUTURE BENEFITS EXPECTED TO BE PAID (Details) - Qualified Defined Benefit [Member]
$ in Millions
Dec. 31, 2019
USD ($)
Defined Benefit Plan Disclosure [Line Items]  
2020 $ 115
2021 118
2022 134
2023 137
2024 137
2025– 2029 $ 800