Share-based Compensation (Summary Of Stock-Based Compensation) (Details)
$ / shares in Units, $ in Millions |
12 Months Ended |
|
|
Dec. 31, 2019
USD ($)
$ / shares
shares
|
Dec. 31, 2018
USD ($)
|
Dec. 31, 2017
USD ($)
|
Dec. 31, 2019
€ / shares
shares
|
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
|
|
|
|
| Allocated share-based compensation expense |
$ 305.8
|
$ 206.0
|
$ 162.2
|
|
| Percent of annual inventive compensation |
100.00%
|
|
|
100.00%
|
| Other operating expenses |
|
|
|
|
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
|
|
|
|
| Allocated share-based compensation expense |
$ 3.9
|
4.4
|
4.7
|
|
| SG&A expenses |
|
|
|
|
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
|
|
|
|
| Allocated share-based compensation expense |
301.9
|
201.6
|
157.5
|
|
| Liberty Global Plc |
|
|
|
|
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
|
|
|
|
| Allocated share-based compensation expense |
281.1
|
184.3
|
131.4
|
|
| Performance-based incentive awards | Liberty Global Plc |
|
|
|
|
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
|
|
|
|
| Allocated share-based compensation expense |
134.5
|
50.8
|
23.9
|
|
| Non-performance based incentive awards | Liberty Global Plc |
|
|
|
|
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
|
|
|
|
| Allocated share-based compensation expense |
107.6
|
90.1
|
93.8
|
|
| Other | Liberty Global Plc |
|
|
|
|
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
|
|
|
|
| Allocated share-based compensation expense |
39.0
|
43.4
|
13.7
|
|
| Telenet share-based incentive awards | Telenet |
|
|
|
|
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
|
|
|
|
| Allocated share-based compensation expense |
15.6
|
19.6
|
20.7
|
|
| Other |
|
|
|
|
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
|
|
|
|
| Allocated share-based compensation expense |
$ 9.1
|
$ 2.1
|
$ 10.1
|
|
| Options | Telenet |
|
|
|
|
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
|
|
|
|
| Shares reserved for future issuance (in shares) | shares |
3,846,649
|
|
|
3,846,649
|
| Awards outstanding (in EUR/USD per share) | (per share) |
$ 49.20
|
|
|
€ 43.82
|