v2.4.0.6

Investments (Equity Method Investments) (Details) (USD $) In Billions, unless otherwise specified | Jul. 09, 2012 Ae Television Networks LLC [Member] | Jul. 13, 2012 Msnbccom [Member]
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Equity method investment ownership percentage | 15.80% |
Pretax Gain (Loss) on Sale or Disposal | $ 1 |
Significant Acquisitions and Disposals, Acquisition Costs or Sale Proceeds | $ 3 |
Remaining equity interest acquired |  | 50.00%

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