REVENUE RECOGNITION - Remaining Performance Obligations (Details) - USD ($) $ in Billions |
Dec. 31, 2020 |
Dec. 31, 2019 |
---|---|---|
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items] | ||
Revenue, remaining performance obligation, amount | $ 5.4 | $ 4.7 |
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2021-01-01 | ||
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items] | ||
Revenue, remaining performance obligation, percentage | 71.00% | |
Revenue, remaining performance obligation, period | 12 months |