v2.4.1.9

Supplemental Financial Information (Receivables)(Details) (USD $) | Dec. 31, 2014 | Dec. 31, 2013
--- | --- | ---
Receivables, gross | $ 6,885,000,000 us-gaap_AccountsReceivableGrossCurrent | $ 6,972,000,000 us-gaap_AccountsReceivableGrossCurrent
Less: Allowance for returns and customer incentives | 359,000,000 cmcsa_ReturnsAndIncentivesAllowance | 375,000,000 cmcsa_ReturnsAndIncentivesAllowance
Less: Allowance for doubtful accounts | 205,000,000 us-gaap_AllowanceForDoubtfulAccountsReceivableCurrent | 221,000,000 us-gaap_AllowanceForDoubtfulAccountsReceivableCurrent
Receivables, net | 6,321,000,000 us-gaap_AccountsReceivableNetCurrent | 6,376,000,000 us-gaap_AccountsReceivableNetCurrent
Noncurrent receivables, net | 569,000,000 us-gaap_AccountsReceivableNetNoncurrent | 488,000,000 us-gaap_AccountsReceivableNetNoncurrent
NBCUniversal Media, LLC [Member] |  |
Receivables, gross | 5,258,000,000 us-gaap_AccountsReceivableGrossCurrent / dei_LegalEntityAxis = cmcsa_NBCUniversalMediaLLCMember | 5,348,000,000 us-gaap_AccountsReceivableGrossCurrent / dei_LegalEntityAxis = cmcsa_NBCUniversalMediaLLCMember
Less: Allowance for returns and customer incentives | 356,000,000 cmcsa_ReturnsAndIncentivesAllowance / dei_LegalEntityAxis = cmcsa_NBCUniversalMediaLLCMember | 372,000,000 cmcsa_ReturnsAndIncentivesAllowance / dei_LegalEntityAxis = cmcsa_NBCUniversalMediaLLCMember
Less: Allowance for doubtful accounts | 60,000,000 us-gaap_AllowanceForDoubtfulAccountsReceivableCurrent / dei_LegalEntityAxis = cmcsa_NBCUniversalMediaLLCMember | 65,000,000 us-gaap_AllowanceForDoubtfulAccountsReceivableCurrent / dei_LegalEntityAxis = cmcsa_NBCUniversalMediaLLCMember
Receivables, net | 4,842,000,000 us-gaap_AccountsReceivableNetCurrent / dei_LegalEntityAxis = cmcsa_NBCUniversalMediaLLCMember | 4,911,000,000 us-gaap_AccountsReceivableNetCurrent / dei_LegalEntityAxis = cmcsa_NBCUniversalMediaLLCMember
Noncurrent receivables, net | $ 569,000,000 us-gaap_AccountsReceivableNetNoncurrent / dei_LegalEntityAxis = cmcsa_NBCUniversalMediaLLCMember | $ 488,000,000 us-gaap_AccountsReceivableNetNoncurrent / dei_LegalEntityAxis = cmcsa_NBCUniversalMediaLLCMember

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- Definition Amounts 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. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.3) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 3 -Subparagraph a, b -Article 5 + Details
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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. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.3-4) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 3 -Subparagraph a(1) -Article 5 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 4 -Article 5 + Details
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- Definition Amount due from customers or clients, more than one year from the balance sheet date, for goods or services 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. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.17) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 3 -Article 5 + Details
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- Definition A valuation allowance for trade and other receivables due to an Entity within one year (or the normal operating cycle, whichever is longer) that are expected to be uncollectible. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 4 -Article 5 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=28368275&loc=d3e5074-111524 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.4) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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