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v3.23.1

Goodwill and Intangible Assets - Changes in Carrying Amounts of Goodwill by Reportable Segment (Details) - USD ($) $ in Millions |  | 1 Months Ended | 3 Months Ended
--- | --- | --- | ---
Jan. 01, 2023 | Mar. 31, 2023 | Mar. 31, 2023 | Dec. 31, 2022 | Mar. 31, 2022
Goodwill [Line Items] |  |  |  |  |
Gross goodwill |  | $ 2,157.9 | $ 2,157.9 | $ 3,037.0 |
Less: Accumulated impairment charges |  | (543.1) | (543.1) | (881.9) |
Goodwill [Roll Forward] |  |  |  |  |
Goodwill, beginning balance | $ 2,155.1 |  | 2,155.1 |  |
Reallocation adjustments |  |  | 0.0 |  |
Impairment of goodwill |  |  | (543.1) |  | $ 0.0
Foreign currency translation |  |  | 2.8 |  |
Goodwill, ending balance |  | 1,614.8 | 1,614.8 | 2,155.1 |
Public Cloud |  |  |  |  |
Goodwill [Line Items] |  |  |  |  |
Gross goodwill |  | 595.8 | 595.8 | 0.0 |
Less: Accumulated impairment charges |  | 0.0 | 0.0 | 0.0 |
Goodwill [Roll Forward] |  |  |  |  |
Goodwill, beginning balance | 0.0 |  | 0.0 |  |
Reallocation adjustments |  |  | 594.7 |  |
Impairment of goodwill |  |  | 0.0 |  |
Foreign currency translation |  |  | 1.1 |  |
Goodwill, ending balance |  | 595.8 | 595.8 | 0.0 |
Private Cloud |  |  |  |  |
Goodwill [Line Items] |  |  |  |  |
Gross goodwill |  | 1,562.1 | 1,562.1 | 0.0 |
Less: Accumulated impairment charges |  | (543.1) | (543.1) | 0.0 |
Goodwill [Roll Forward] |  |  |  |  |
Goodwill, beginning balance | 0.0 |  | 0.0 |  |
Reallocation adjustments |  |  | 1,560.4 |  |
Impairment of goodwill | (270.8) | (272.3) | (543.1) |  |
Foreign currency translation |  |  | 1.7 |  |
Goodwill, ending balance |  | 1,019.0 | 1,019.0 | 0.0 |
Multicloud Services |  |  |  |  |
Goodwill [Line Items] |  |  |  |  |
Gross goodwill |  | 0.0 | 0.0 | 2,656.6 |
Less: Accumulated impairment charges |  | 0.0 | 0.0 | (700.2) |
Goodwill [Roll Forward] |  |  |  |  |
Goodwill, beginning balance | 1,956.4 |  | 1,956.4 |  |
Reallocation adjustments |  |  | (1,956.4) |  |
Impairment of goodwill |  |  | 0.0 |  |
Foreign currency translation |  |  | 0.0 |  |
Goodwill, ending balance |  | 0.0 | 0.0 | 1,956.4 |
Apps & Cross Platform |  |  |  |  |
Goodwill [Line Items] |  |  |  |  |
Gross goodwill |  | 0.0 | 0.0 | 328.0 |
Less: Accumulated impairment charges |  | 0.0 | 0.0 | (129.3) |
Goodwill [Roll Forward] |  |  |  |  |
Goodwill, beginning balance | 198.7 |  | 198.7 |  |
Reallocation adjustments |  |  | (198.7) |  |
Impairment of goodwill |  |  | 0.0 | (129.3) |
Foreign currency translation |  |  | 0.0 |  |
Goodwill, ending balance |  | 0.0 | 0.0 | 198.7 |
OpenStack Public Cloud |  |  |  |  |
Goodwill [Line Items] |  |  |  |  |
Gross goodwill |  | 0.0 | 0.0 | 52.4 |
Less: Accumulated impairment charges |  | 0.0 | 0.0 | (52.4) |
Goodwill [Roll Forward] |  |  |  |  |
Goodwill, beginning balance | $ 0.0 |  | 0.0 |  |
Reallocation adjustments |  |  | 0.0 |  |
Impairment of goodwill |  |  | 0.0 |  |
Foreign currency translation |  |  | 0.0 |  |
Goodwill, ending balance |  | $ 0.0 | $ 0.0 | $ 0.0 |

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