v3.10.0.1

Acquisitions and Dispositions (Pending and Completed Dispositions Narrative) (Details) € in Millions | Jul. 31, 2018 EUR (€) | Jul. 31, 2018 USD ($) | May 09, 2018 EUR (€) | Dec. 29, 2017 USD ($) | Jul. 31, 2018 USD ($) | Jun. 30, 2018 USD ($) | May 09, 2018 USD ($)
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Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |  |  |  |
Authorized amount |  |  |  |  |  | $ 500,000,000.0 |
Vodafone Disposal Group | Discontinued Operations, Disposed of by Sale |  |  |  |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |  |  |  |
Consideration for disposal |  |  | € 10,600.0 |  |  |  | $ 12,400,000,000
Compensatory payment |  |  | € 250.0 |  |  |  | $ 291,900,000
Term of transitional services |  |  | 4 years |  |  |  |
UPC Austria | Discontinued Operations, Disposed of by Sale | Subsequent Event |  |  |  |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |  |  |  |
Consideration for disposal | € 1,900.0 |  |  |  | $ 2,200,000,000 |  |
Proceeds from divestiture of business | € 1,800.0 | $ 2,100,000,000 |  |  |  |  |
Extinguishment of debt |  | $ 1,500,000,000 |  |  |  |  |
Term of transitional services | 4 years | 4 years |  |  |  |  |
Term of brand transitional period | 3 years | 3 years |  |  |  |  |
UPC Austria | Discontinued Operations, Disposed of by Sale | UPC Holding Bank Facility | Subsequent Event |  |  |  |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |  |  |  |
Extinguishment of debt |  | $ 913,800,000 |  |  |  |  |
UPC Austria | Discontinued Operations, Disposed of by Sale | UPCB SPE Notes | Subsequent Event |  |  |  |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |  |  |  |
Extinguishment of debt |  | 70,100,000 |  |  |  |  |
UPC Austria | Discontinued Operations, Disposed of by Sale | VM Notes | Subsequent Event |  |  |  |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |  |  |  |
Extinguishment of debt |  | $ 519,900,000 |  |  |  |  |
LiLAC Group | Discontinued Operations, Split-off Transaction |  |  |  |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |  |  |  |
Common shares distributed |  |  |  | 100.00% |  |  |
Gain (loss) on discontinued operation |  |  |  | $ 0 |  |  |

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