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EMPLOYEE BENEFITS - Defined Contribution Plans (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Defined Benefit Plan Disclosure [Line Items]      
Profit sharing automatic contribution percentage 3.00%    
Profit sharing plan expense $ 113 $ 164 $ 120
Defined contribution plans, expense $ 19 $ 13 $ 18
Minimum [Member]      
Defined Benefit Plan Disclosure [Line Items]      
Profit sharing contribution percentage 8.00%    
Maximum [Member]      
Defined Benefit Plan Disclosure [Line Items]      
Profit sharing contribution percentage 18.00%