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v3.19.3.a.u2

Equity (Changes in Share Capital) (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2019 | Dec. 31, 2018 | Dec. 31, 2017
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |
Beginning balance | $ 4,148.3 | $ 6,393.0 | $ 14,732.0
Repurchase and cancellation of Liberty Global Shares | (3,220.2) | (2,010.0) | (2,948.2)
Ending balance | 13,198.6 | 4,148.3 | $ 6,393.0
Liberty Global Shares |  |  |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |
Beginning balance | 8.9 |  |
Impact of the Split-off Transaction | 0.0 |  |
Repurchase and cancellation of Liberty Global Shares | (0.8) |  |
Ending balance | 8.1 | 8.9 |
Liberty Global Shares | Class A |  |  |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |
Beginning balance | 2.5 |  |
Impact of the Split-off Transaction | 0.0 |  |
Repurchase and cancellation of Liberty Global Shares | (0.3) |  |
Ending balance | 2.2 | 2.5 |
Liberty Global Shares | Class B |  |  |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |
Beginning balance | 0.1 |  |
Impact of the Split-off Transaction | 0.0 |  |
Repurchase and cancellation of Liberty Global Shares | 0.0 |  |
Ending balance | 0.1 | 0.1 |
Liberty Global Shares | Class C |  |  |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |
Beginning balance | 6.3 |  |
Impact of the Split-off Transaction | 0.0 |  |
Repurchase and cancellation of Liberty Global Shares | (0.5) |  |
Ending balance | 5.8 | 6.3 |
LiLAC Shares |  |  |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |
Beginning balance | 1.7 |  |
Impact of the Split-off Transaction | (1.7) |  |
Repurchase and cancellation of Liberty Global Shares | 0.0 |  |
Ending balance | 0.0 | 1.7 |
LiLAC Shares | Class A |  |  |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |
Beginning balance | 0.5 |  |
Impact of the Split-off Transaction | (0.5) |  |
Repurchase and cancellation of Liberty Global Shares | 0.0 |  |
Ending balance | 0.0 | 0.5 |
LiLAC Shares | Class B |  |  |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |
Beginning balance | 0.0 |  |
Impact of the Split-off Transaction | 0.0 |  |
Repurchase and cancellation of Liberty Global Shares | 0.0 |  |
Ending balance | 0.0 | 0.0 |
LiLAC Shares | Class C |  |  |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |
Beginning balance | 1.2 |  |
Impact of the Split-off Transaction | (1.2) |  |
Repurchase and cancellation of Liberty Global Shares | 0.0 |  |
Ending balance | $ 0.0 | $ 1.2 |

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