v2.4.0.6

Noncontrolling Interests (Details) (USD $) In Millions, unless otherwise specified | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2012 | Jun. 30, 2011 | Jun. 30, 2012 | Jun. 30, 2011
GE ownership percentage in new company formed in connection with the NBC Universal transaction | 49.00% |  | 49.00% |
Net income attributable to Comcast Corporation | $ 1,348 | $ 1,022 | $ 2,572 | $ 1,965
Increase in Comcast Corporation additional paid-in capital resulting from the issuance of noncontrolling equity interest |  |  | 0 | 1,692
Increase in Comcast Corporation additional paid-in capital resulting from the purchase of noncontrolling interest |  |  | 2 | 0
Changes in equity resulting from net income attributable to Comcast Corporation and transfers from (to) noncontrolling interests |  |  | $ 2,574 | $ 3,657

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