v3.10.0.1

Equity (Share Repurchases Programs) (Details) - USD ($) | 12 Months Ended |
--- | --- | ---
Dec. 31, 2018 | Dec. 31, 2017 | Dec. 31, 2016 | Jul. 31, 2018
Class of Stock [Line Items] |  |  |  |
Distributable reserves recognized |  | $ 22,700,000,000 |  |
Authorized amount |  |  |  | $ 500,000,000.0
Stock repurchase, remaining authorized amount | $ 566,200,000 |  |  |
Liberty Global Shares |  |  |  |
Class of Stock [Line Items] |  |  |  |
Total cost for stock purchased pursuant to repurchase programs | $ 2,010,000,000.0 | $ 2,894,700,000 | $ 2,068,000,000.0 |
Liberty Global Shares | Class A |  |  |  |
Class of Stock [Line Items] |  |  |  |
Shares purchased pursuant to repurchase programs (in shares) | 15,649,900 | 34,881,510 | 32,387,722 |
Average price paid per share pursuant to repurchase programs (in dollars per shares) | $ 29.67 | $ 33.73 | $ 32.26 |
Liberty Global Shares | Class C |  |  |  |
Class of Stock [Line Items] |  |  |  |
Shares purchased pursuant to repurchase programs (in shares) | 54,211,059 | 52,523,651 | 31,557,089 |
Average price paid per share pursuant to repurchase programs (in dollars per shares) | $ 28.51 | $ 32.71 | $ 32.43 |
LiLAC Shares |  |  |  |
Class of Stock [Line Items] |  |  |  |
Total cost for stock purchased pursuant to repurchase programs |  | $ 53,500,000 | $ 21,500,000 |
LiLAC Shares | Class A |  |  |  |
Class of Stock [Line Items] |  |  |  |
Shares purchased pursuant to repurchase programs (in shares) |  | 2,062,233 | 720,800 |
Average price paid per share pursuant to repurchase programs (in dollars per shares) |  | $ 22.84 | $ 20.65 |
LiLAC Shares | Class C |  |  |  |
Class of Stock [Line Items] |  |  |  |
Shares purchased pursuant to repurchase programs (in shares) |  | 285,572 | 313,647 |
Average price paid per share pursuant to repurchase programs (in dollars per shares) |  | $ 22.25 | $ 21.19 |

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- Definition Number of shares that have been repurchased during the period and have not been retired and are not held in treasury. Some state laws may govern the circumstances under which an entity may acquire its own stock and prescribe the accounting treatment therefore. This element is used when state law does not recognize treasury stock. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=109259400&loc=d3e21463-112644 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(29)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.3-04) -URI http://asc.fasb.org/extlink&oid=27012166&loc=d3e187085-122770 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(28)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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