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Significant Transactions (Universal Beijing Resort) (Details) $ in Millions, ¥ in Billions | Jun. 30, 2018 USD ($) | Jun. 30, 2018 CNY (¥)
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Universal Beijing Resort [Member] |  |
Variable Interest Entity [Line Items] |  |
Ownership percentage in variable interest entity | 30.00% | 30.00%
Maximum borrowing capacity of variable interest entity | $ 4,000 | ¥ 26.6
Consolidated variable interest entity's assets included in condensed consolidated balance sheet | 1,200 |
Consolidated variable interest entity's liabilities included in condensed consolidated balance sheet | $ 587 |
NBCUniversal Media LLC [Member] | Universal Beijing Resort [Member] |  |
Variable Interest Entity [Line Items] |  |
Ownership percentage in variable interest entity | 30.00% | 30.00%
Maximum borrowing capacity of variable interest entity | $ 4,000 | ¥ 26.6
Consolidated variable interest entity's assets included in condensed consolidated balance sheet | 1,200 |
Consolidated variable interest entity's liabilities included in condensed consolidated balance sheet | 587 |
Universal Beijing Resort Term Loans [Member] |  |
Variable Interest Entity [Line Items] |  |
Debt face amount | 235 |
Universal Beijing Resort Term Loans [Member] | NBCUniversal Media LLC [Member] |  |
Variable Interest Entity [Line Items] |  |
Debt face amount | $ 235 |

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