v2.4.0.8

Related Party Transactions - Consolidated Balance Sheet (Details) (USD $) In Millions, unless otherwise specified	Sep. 30, 2014	Dec. 31, 2013
Receivables, net	$ 6,172	$ 6,376
Accounts payable and accrued expenses related to trade creditors	5,680	5,528
Accrued expenses and other current liabilities	5,461	7,967
Other noncurrent liabilities	10,388	11,384
NBCUniversal Media, LLC [Member]
Receivables, net	4,784	4,911
Accounts payable and accrued expenses related to trade creditors	1,325	1,583
Accrued expenses and other current liabilities	1,424	1,465
Note payable to Comcast	1,078	799
Other noncurrent liabilities	3,514	3,412
Transactions With Comcast And Consolidated Subsidiaries [Member] | NBCUniversal Media, LLC [Member]
Receivables, net	241	228
Accounts payable and accrued expenses related to trade creditors	35	56
Accrued expenses and other current liabilities	34	37
Note payable to Comcast	1,078	799
Other noncurrent liabilities	$ 383	$ 383

X

- Definition

The total amount due to Comcast, with respect to cash management arrangements under the matching revolving credit notes, as of the balance sheet date.

+ References

No definition available.

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- Definition

Carrying value as of the balance sheet date of liabilities incurred (and for which invoices have typically been received) and payable to vendors for goods and services received that are used in an entity's business. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

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-Number 210

-Section 02

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-Subparagraph a

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-Name Accounting Standards Codification

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- Definition

Amount due from customers or clients, within one year of the balance sheet date (or the normal operating cycle, whichever is longer), for goods or services (including trade receivables) that have been delivered or sold in the normal course of business, reduced to the estimated net realizable fair value by an allowance established by the entity of the amount it deems uncertain of collection.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

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-Subparagraph (SX 210.5-02.3-4)

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- Definition

Carrying value as of the balance sheet date of obligations incurred and payable, pertaining to costs that are statutory in nature, are incurred on contractual obligations, or accumulate over time and for which invoices have not yet been received or will not be rendered. Examples include taxes, interest, rent and utilities. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

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- Definition

Aggregate carrying amount, as of the balance sheet date, of noncurrent obligations not separately disclosed in the balance sheet. Noncurrent liabilities are expected to be paid after one year (or the normal operating cycle, if longer).

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