SEGMENT INFORMATION - Business Segments (Details) - USD ($) $ in Millions |
12 Months Ended | ||
|---|---|---|---|
Dec. 31, 2019 |
Dec. 31, 2018 |
Dec. 31, 2017 |
|
| Segment Reporting Information [Line Items] | |||
| Revenue | $ 4,431.2 | $ 4,285.6 | $ 3,879.4 |
| Americas | |||
| Segment Reporting Information [Line Items] | |||
| Revenue | 2,229.1 | 2,145.7 | |
| Asia Pacific | |||
| Segment Reporting Information [Line Items] | |||
| Revenue | 1,278.0 | 1,244.2 | |
| Europe, Middle East, & Africa | |||
| Segment Reporting Information [Line Items] | |||
| Revenue | 924.1 | 895.7 | |
| Operating segment | |||
| Segment Reporting Information [Line Items] | |||
| Revenue | 4,605.4 | 4,460.5 | 4,044.3 |
| Operating segment | Americas | |||
| Segment Reporting Information [Line Items] | |||
| Revenue | 2,251.4 | 2,175.6 | 1,886.7 |
| Operating segment | Asia Pacific | |||
| Segment Reporting Information [Line Items] | |||
| Revenue | 1,378.0 | 1,346.9 | 1,239.5 |
| Operating segment | Europe, Middle East, & Africa | |||
| Segment Reporting Information [Line Items] | |||
| Revenue | 976.0 | 938.0 | 918.1 |
| Eliminations | |||
| Segment Reporting Information [Line Items] | |||
| Revenue | $ (174.2) | $ (174.9) | $ (164.9) |