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STOCK INCENTIVE PLANS - Schedule of Certain Information Related to Restricted Stock Units (Detail) - Restricted Stock [Member] - USD ($)
$ in Millions
6 Months Ended
Jun. 30, 2019
Jun. 30, 2018
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Stock-based compensation expense $ 6 $ 5
Tax benefit related to stock-based compensation expense 1 1
Fair value of units vested $ 7 $ 3