Significant Transactions	12 Months Ended
Dec. 31, 2013
Significant Transactions	Note 4: Significant Transactions 2013 Redemption Transaction On March 19, 2013, we acquired GE's remaining 49% common equity interest in NBCUniversal, LLC (“NBCUniversal Holdings”) for approximately $16.7 billion (the “Redemption Transaction”). In addition to this transaction, NBCUniversal purchased from GE certain properties NBCUniversal occupies at 30 Rockefeller Plaza in New York City and CNBC's headquarters in Englewood Cliffs, New Jersey for $1.4 billion. The total consideration for these transactions consisted of $11.4 billion of cash on hand; $4 billion of senior debt securities issued by NBCUniversal Enterprise, Inc. (“NBCUniversal Enterprise”), a holding company that we control and consolidate following the close of the Redemption Transaction whose principal assets are its interests in NBCUniversal Holdings; $750 million of cash funded through our commercial paper program; $1.25 billion of borrowings under NBCUniversal Enterprise's credit facility, which replaced NBCUniversal's credit facility; and $725 million aggregate liquidation preference of Series A cumulative preferred stock of NBCUniversal Enterprise. See Note 9 for additional information on NBCUniversal Enterprise's senior debt securities and credit facility and Note 21 for additional information on our cross-guarantee structure. The NBCUniversal Enterprise preferred stock is now held by unaffiliated third parties and pays dividends at a fixed rate of 5.25% per annum. The holders have the right to cause NBCUniversal Enterprise to redeem their shares at a price equal to the liquidation preference plus accrued but unpaid dividends for a 30 day period beginning on March 19, 2020 and thereafter on every third anniversary of such date (each such date, a “put date”). Shares of preferred stock can be called for redemption by NBCUniversal Enterprise at a price equal to the liquidation preference plus accrued but unpaid dividends one year following each put date applicable to such shares. Because certain of these redemption provisions are outside of our control, the NBCUniversal Enterprise preferred stock is presented outside of equity under the caption “redeemable noncontrolling interests and redeemable subsidiary preferred stock” in our consolidated balance sheet. Its initial value was based on the liquidation preference of the preferred stock and is adjusted for accrued but unpaid dividends. As of December 31, 2013, the fair value of the redeemable subsidiary preferred stock was $741 million. The estimated fair value was based on Level 2 inputs using pricing models whose inputs are derived primarily from or corroborated by observable market data through correlation or other means for substantially the full term of the financial instrument. We recognized an increase to our deferred tax liabilities of $1.6 billion primarily due to an increase in our financial reporting basis in the consolidated net assets of NBCUniversal Holdings in excess of the tax basis following the Redemption Transaction. In addition, our consolidated balance sheet now includes certain tax liabilities of NBCUniversal Enterprise related to periods prior to our acquisition of the common stock of NBCUniversal Enterprise for which we have been indemnified by GE and have recorded a related indemnification asset. We also expect to realize additional tax benefits in the future as a result of the Redemption Transaction, which are expected to increase the amounts we have agreed to share with GE. Our expected future payments to GE are accounted for as contingent consideration. See Note 10 for additional information on the fair value of this contingent consideration as of December 31, 2013. Because we maintained control of NBCUniversal Holdings, the difference between the consideration transferred and the recorded value of GE's 49% redeemable noncontrolling common equity interest, and the related tax impacts, were recorded to additional paid-in capital. 2011 NBCUniversal Transaction On January 28, 2011, we closed our transaction with GE in which we acquired a 51% controlling interest in NBCUniversal Holdings. As part of the NBCUniversal transaction, GE contributed the businesses of NBCUniversal, which is a wholly owned subsidiary of NBCUniversal Holdings. We contributed our national cable networks, our regional sports and news networks, certain of our Internet businesses and other related assets (the “Comcast Content Business”). In addition to contributing the Comcast Content Business, we also made a cash payment to GE of $6.2 billion, which included transaction-related costs. In 2011, we recorded $10.9 billion of goodwill in our allocation of purchase price for the NBCUniversal transaction, which was allocated to our Cable Networks and Broadcast Television segments. Due to the partnership structure of NBCUniversal Holdings, goodwill related to the NBCUniversal transaction is not deductible for tax purposes. In addition, we also recorded $576 million of deferred tax liabilities in connection with the NBCUniversal transaction, as well as an additional $35 million of net deferred income tax liabilities in the allocation of purchase price. See Note 15 for additional information on the partnership structure of NBCUniversal Holdings and NBCUniversal and other related income tax matters. Because we maintained control of the Comcast Content Business, the excess of the fair value received over the historical book value and the related tax impact were recorded to additional paid-in capital. We agreed to share with GE certain tax benefits as they are realized that relate to the form and structure of the transaction. These payments to GE are contingent on us realizing tax benefits in the future and are accounted for as contingent consideration. See Note 10 for additional information on our contingent consideration liability. Universal Orlando Transaction On July 1, 2011, NBCUniversal acquired the remaining 50% equity interest in Universal Orlando that it did not already own for $1 billion. Following the close of the transaction, Universal Orlando is a wholly owned consolidated subsidiary of NBCUniversal, and its operations are reported in our Theme Parks segment. We recorded $982 million of goodwill in our allocation of purchase price for this transaction, which was fully allocated to our Theme Parks segment.
NBCUniversal Media, LLC [Member]
Significant Transactions	Note 3: Significant Transactions 2013 Redemption Transaction On March 19, 2013, Comcast acquired GE's remaining 49% common equity interest in NBCUniversal Holdings for approximately $16.7 billion (the “Redemption Transaction”). In addition to this transaction, we purchased from GE certain properties we occupy at 30 Rockefeller Plaza in New York City and CNBC's headquarters in Englewood Cliffs, New Jersey for $1.4 billion. The total consideration for these transactions consisted of $11.4 billion of cash on hand (of which we funded $4.6 billion); $4 billion of senior debt securities issued by NBCUniversal Enterprise, Inc. (“NBCUniversal Enterprise”), a holding company whose principal assets are its interests in NBCUniversal Holdings; $750 million of cash funded through Comcast's commercial paper program; $1.25 billion of borrowings under NBCUniversal Enterprise's credit facility, which replaced our credit facility; and $725 million aggregate liquidation preference of Series A cumulative preferred stock of NBCUniversal Enterprise. After the close of the transaction, GE sold the interests in NBCUniversal Enterprise's senior debt securities and preferred stock it acquired in the Redemption Transaction to unaffiliated third parties. Following the close of the Redemption Transaction, Comcast owns 96% of NBCUniversal Holdings' common units and NBCUniversal Enterprise owns the remaining 4%. NBCUniversal Enterprise is now a consolidated subsidiary of Comcast, but we do not have any ownership interests in NBCUniversal Enterprise. NBCUniversal Enterprise also owns all of NBCUniversal Holdings' preferred units with a $9.4 billion aggregate liquidation preference. NBCUniversal Holdings is required to make quarterly payments to NBCUniversal Enterprise at an initial rate of 8.25% per annum on the $9.4 billion aggregate liquidation preference of the preferred units. On March 1, 2018, and thereafter on every fifth anniversary of such date, this rate will reset to 7.44% plus the yield on actively traded United States Treasury securities having a 5 year maturity. NBCUniversal Holdings has the right to redeem all of the preferred units during the 30 day period beginning on March 1, 2018, and NBCUniversal Enterprise has the right to cause NBCUniversal Holdings to redeem 15% of its preferred units during the 30 day period beginning on March 19, 2020. The price and units in a redemption initiated by either party will be based on the liquidation preference plus accrued but unpaid dividends and adjusted, in the case of an exercise of NBCUniversal Enterprise's right, to the extent the equity value of NBCUniversal Holdings is less than the liquidation preference. Our cash flows are, and will continue to be, the primary source of funding for the required payments and any future redemption of the NBCUniversal Holdings preferred units. 2011 Joint Venture Transaction On January 28, 2011, Comcast and GE closed the Joint Venture transaction, which among other things, converted our company into a limited liability company that became a wholly owned subsidiary of NBCUniversal Holdings. NBCUniversal comprises the NBCUniversal contributed businesses and the Comcast Content Business. In addition to contributing the Comcast Content Business to NBCUniversal, Comcast made a cash payment to GE of $6.2 billion, which included transaction-related costs. Comcast also agreed to share with GE certain tax benefits as they are realized that relate to the form and structure of the Joint Venture transaction. These payments to GE are contingent on Comcast realizing tax benefits in the future and are accounted for as contingent consideration by Comcast. Universal Orlando Transaction On July 1, 2011, we acquired the remaining 50% equity interest in Universal Orlando that we did not already own for $1 billion. Following the close of the transaction, Universal Orlando is a wholly owned consolidated subsidiary, and its operations are reported in our Theme Parks segment. We recorded $982 million of goodwill in our allocation of purchase price for this transaction, which was fully allocated to our Theme Parks segment.

Significant Transactions

12 Months Ended

Dec. 31, 2013

Note 4: Significant Transactions

2013

Redemption Transaction

On March 19, 2013, we acquired GE's remaining 49% common equity interest in NBCUniversal, LLC (“NBCUniversal Holdings”) for approximately $16.7 billion (the “Redemption Transaction”). In addition to this transaction, NBCUniversal purchased from GE certain properties NBCUniversal occupies at 30 Rockefeller Plaza in New York City and CNBC's headquarters in Englewood Cliffs, New Jersey for $1.4 billion.

The total consideration for these transactions consisted of $11.4 billion of cash on hand; $4 billion of senior debt securities issued by NBCUniversal Enterprise, Inc. (“NBCUniversal Enterprise”), a holding company that we control and consolidate following the close of the Redemption Transaction whose principal assets are its interests in NBCUniversal Holdings; $750 million of cash funded through our commercial paper program; $1.25 billion of borrowings under NBCUniversal Enterprise's credit facility, which replaced NBCUniversal's credit facility; and $725 million aggregate liquidation preference of Series A cumulative preferred stock of NBCUniversal Enterprise. See Note 9 for additional information on NBCUniversal Enterprise's senior debt securities and credit facility and Note 21 for additional information on our cross-guarantee structure.

The NBCUniversal Enterprise preferred stock is now held by unaffiliated third parties and pays dividends at a fixed rate of 5.25% per annum. The holders have the right to cause NBCUniversal Enterprise to redeem their shares at a price equal to the liquidation preference plus accrued but unpaid dividends for a 30 day period beginning on March 19, 2020 and thereafter on every third anniversary of such date (each such date, a “put date”). Shares of preferred stock can be called for redemption by NBCUniversal Enterprise at a price equal to the liquidation preference plus accrued but unpaid dividends one year following each put date applicable to such shares. Because certain of these redemption provisions are outside of our control, the NBCUniversal Enterprise preferred stock is presented outside of equity under the caption “redeemable noncontrolling interests and redeemable subsidiary preferred stock” in our consolidated balance sheet. Its initial value was based on the liquidation preference of the preferred stock and is adjusted for accrued but unpaid dividends. As of December 31, 2013, the fair value of the redeemable subsidiary preferred stock was $741 million. The estimated fair value was based on Level 2 inputs using pricing models whose inputs are derived primarily from or corroborated by observable market data through correlation or other means for substantially the full term of the financial instrument.

We recognized an increase to our deferred tax liabilities of $1.6 billion primarily due to an increase in our financial reporting basis in the consolidated net assets of NBCUniversal Holdings in excess of the tax basis following the Redemption Transaction. In addition, our consolidated balance sheet now includes certain tax liabilities of NBCUniversal Enterprise related to periods prior to our acquisition of the common stock of NBCUniversal Enterprise for which we have been indemnified by GE and have recorded a related indemnification asset. We also expect to realize additional tax benefits in the future as a result of the Redemption Transaction, which are expected to increase the amounts we have agreed to share with GE. Our expected future payments to GE are accounted for as contingent consideration. See Note 10 for additional information on the fair value of this contingent consideration as of December 31, 2013.

Because we maintained control of NBCUniversal Holdings, the difference between the consideration transferred and the recorded value of GE's 49% redeemable noncontrolling common equity interest, and the related tax impacts, were recorded to additional paid-in capital.

2011

NBCUniversal Transaction

On January 28, 2011, we closed our transaction with GE in which we acquired a 51% controlling interest in NBCUniversal Holdings. As part of the NBCUniversal transaction, GE contributed the businesses of NBCUniversal, which is a wholly owned subsidiary of NBCUniversal Holdings. We contributed our national cable networks, our regional sports and news networks, certain of our Internet businesses and other related assets (the “Comcast Content Business”). In addition to contributing the Comcast Content Business, we also made a cash payment to GE of $6.2 billion, which included transaction-related costs.

In 2011, we recorded $10.9 billion of goodwill in our allocation of purchase price for the NBCUniversal transaction, which was allocated to our Cable Networks and Broadcast Television segments. Due to the partnership structure of NBCUniversal Holdings, goodwill related to the NBCUniversal transaction is not deductible for tax purposes. In addition, we also recorded $576 million of deferred tax liabilities in connection with the NBCUniversal transaction, as well as an additional $35 million of net deferred income tax liabilities in the allocation of purchase price. See Note 15 for additional information on the partnership structure of NBCUniversal Holdings and NBCUniversal and other related income tax matters.

Because we maintained control of the Comcast Content Business, the excess of the fair value received over the historical book value and the related tax impact were recorded to additional paid-in capital.

We agreed to share with GE certain tax benefits as they are realized that relate to the form and structure of the transaction. These payments to GE are contingent on us realizing tax benefits in the future and are accounted for as contingent consideration. See Note 10 for additional information on our contingent consideration liability.

Universal Orlando Transaction

On July 1, 2011, NBCUniversal acquired the remaining 50% equity interest in Universal Orlando that it did not already own for $1 billion. Following the close of the transaction, Universal Orlando is a wholly owned consolidated subsidiary of NBCUniversal, and its operations are reported in our Theme Parks segment. We recorded $982 million of goodwill in our allocation of purchase price for this transaction, which was fully allocated to our Theme Parks segment.

NBCUniversal Media, LLC [Member]

Significant Transactions

Note 3: Significant Transactions

2013

Redemption Transaction

On March 19, 2013, Comcast acquired GE's remaining 49% common equity interest in NBCUniversal Holdings for approximately $16.7 billion (the “Redemption Transaction”). In addition to this transaction, we purchased from GE certain properties we occupy at 30 Rockefeller Plaza in New York City and CNBC's headquarters in Englewood Cliffs, New Jersey for $1.4 billion.

The total consideration for these transactions consisted of $11.4 billion of cash on hand (of which we funded $4.6 billion); $4 billion of senior debt securities issued by NBCUniversal Enterprise, Inc. (“NBCUniversal Enterprise”), a holding company whose principal assets are its interests in NBCUniversal Holdings; $750 million of cash funded through Comcast's commercial paper program; $1.25 billion of borrowings under NBCUniversal Enterprise's credit facility, which replaced our credit facility; and $725 million aggregate liquidation preference of Series A cumulative preferred stock of NBCUniversal Enterprise. After the close of the transaction, GE sold the interests in NBCUniversal Enterprise's senior debt securities and preferred stock it acquired in the Redemption Transaction to unaffiliated third parties.

Following the close of the Redemption Transaction, Comcast owns 96% of NBCUniversal Holdings' common units and NBCUniversal Enterprise owns the remaining 4%. NBCUniversal Enterprise is now a consolidated subsidiary of Comcast, but we do not have any ownership interests in NBCUniversal Enterprise. NBCUniversal Enterprise also owns all of NBCUniversal Holdings' preferred units with a $9.4 billion aggregate liquidation preference. NBCUniversal Holdings is required to make quarterly payments to NBCUniversal Enterprise at an initial rate of 8.25% per annum on the $9.4 billion aggregate liquidation preference of the preferred units. On March 1, 2018, and thereafter on every fifth anniversary of such date, this rate will reset to 7.44% plus the yield on actively traded United States Treasury securities having a 5 year maturity. NBCUniversal Holdings has the right to redeem all of the preferred units during the 30 day period beginning on March 1, 2018, and NBCUniversal Enterprise has the right to cause NBCUniversal Holdings to redeem 15% of its preferred units during the 30 day period beginning on March 19, 2020. The price and units in a redemption initiated by either party will be based on the liquidation preference plus accrued but unpaid dividends and adjusted, in the case of an exercise of NBCUniversal Enterprise's right, to the extent the equity value of NBCUniversal Holdings is less than the liquidation preference. Our cash flows are, and will continue to be, the primary source of funding for the required payments and any future redemption of the NBCUniversal Holdings preferred units.

2011

Joint Venture Transaction

On January 28, 2011, Comcast and GE closed the Joint Venture transaction, which among other things, converted our company into a limited liability company that became a wholly owned subsidiary of NBCUniversal Holdings. NBCUniversal comprises the NBCUniversal contributed businesses and the Comcast Content Business. In addition to contributing the Comcast Content Business to NBCUniversal, Comcast made a cash payment to GE of $6.2 billion, which included transaction-related costs. Comcast also agreed to share with GE certain tax benefits as they are realized that relate to the form and structure of the Joint Venture transaction. These payments to GE are contingent on Comcast realizing tax benefits in the future and are accounted for as contingent consideration by Comcast.

Universal Orlando Transaction

On July 1, 2011, we acquired the remaining 50% equity interest in Universal Orlando that we did not already own for $1 billion. Following the close of the transaction, Universal Orlando is a wholly owned consolidated subsidiary, and its operations are reported in our Theme Parks segment. We recorded $982 million of goodwill in our allocation of purchase price for this transaction, which was fully allocated to our Theme Parks segment.