SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Product Warranties (Details) - USD ($) $ in Millions |
12 Months Ended | ||
|---|---|---|---|
Dec. 31, 2019 |
Dec. 31, 2018 |
Dec. 31, 2017 |
|
| SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES | |||
| Beginning balance | $ 44.9 | $ 40.0 | $ 37.4 |
| Provision charge to expense | 48.7 | 41.0 | 32.4 |
| Paid/utilized | (50.3) | (36.1) | (29.8) |
| Ending balance | $ 43.3 | $ 44.9 | $ 40.0 |