v3.7.0.1

Supplemental Financial Information (Noncash Investing and Financing Activities)(Details) $ / shares in Units, $ in Millions | 3 Months Ended
--- | ---
Mar. 31, 2017 USD ($) $ / shares
Supplemental Financial Information [Line Items] |
Capital expenditures incurred but not yet paid | $ 1,200
Dividends payable | $ 747
Dividends payable (in dollars per share) | $ / shares | $ 0.1575
NBCUniversal Media LLC [Member] |
Supplemental Financial Information [Line Items] |
Capital expenditures incurred but not yet paid | $ 216

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- Definition Future cash outflow to pay for purchases of fixed assets that have occurred. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 50 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=6367179&loc=d3e4332-108586 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=6367179&loc=d3e4313-108586 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=6367179&loc=d3e4304-108586 + Details
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