v3.5.0.2

Supplemental Financial Information (Noncash Investing and Financing Activities)(Details) $ / shares in Units, $ in Millions | 6 Months Ended
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Jun. 30, 2016 USD ($) $ / shares
Dividends payable, amount | $ 663
Dividends payable, amount per share | $ / shares | $ 0.275
Capital expenditures incurred but not yet paid | $ 1,200
NBCUniversal Media LLC [Member] |
Capital expenditures incurred but not yet paid | $ 215

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