BASIS OF PRESENTATION - Net increase (decrease) in cash equivalents and restricted (Details) - USD ($) $ in Millions |
3 Months Ended | 6 Months Ended | 12 Months Ended | ||||||
|---|---|---|---|---|---|---|---|---|---|
Jun. 30, 2022 |
Mar. 31, 2022 |
Dec. 31, 2021 |
Sep. 30, 2021 |
Jun. 30, 2021 |
Mar. 31, 2021 |
Jun. 30, 2022 |
Jun. 30, 2021 |
Dec. 31, 2021 |
|
| Cash flows from operating activities: | |||||||||
| Net cash used in operating activities | $ (76.6) | $ (295.0) | $ 46.5 | $ (113.9) | $ (233.8) | $ (312.9) | $ (371.6) | $ (546.7) | $ (614.1) |
| Cash flows from investing activities: | |||||||||
| Net cash used in investing activities | (48.0) | (54.9) | (36.9) | (28.8) | 13.5 | (16.0) | (102.9) | (2.5) | (68.2) |
| Cash flows from financing activities: | |||||||||
| Net cash provided by (used in) financing activities | (59.7) | (76.3) | (27.9) | (48.3) | 1,212.2 | 854.7 | (136.0) | 2,066.9 | 1,990.7 |
| Effect of exchange rate changes on cash and cash equivalents and restricted cash | (16.4) | (5.5) | (1.6) | (8.4) | 5.6 | (5.1) | (21.9) | 0.5 | (9.5) |
| Net increase (decrease) in cash and cash equivalents and restricted cash | (200.7) | (431.7) | (19.9) | (199.4) | 997.5 | 520.7 | (632.4) | 1,518.2 | 1,298.9 |
| Cash and cash equivalents and restricted cash at beginning of period | 1,188.6 | 1,620.3 | 1,640.2 | 1,839.6 | 842.1 | 321.4 | 1,620.3 | 321.4 | 321.4 |
| Cash and cash equivalents and restricted cash at end of period | $ 987.9 | $ 1,188.6 | $ 1,620.3 | $ 1,640.2 | $ 1,839.6 | $ 842.1 | $ 987.9 | $ 1,839.6 | $ 1,620.3 |