$CMCSA
COMCAST CORP Stock $cmcsa

$cmcsa Overview Financials Valuation SEC Filings Company Website

2015 Q3 Form 10-Q Financial Statement

#000119312515354626 Filed on October 27, 2015

Income Statement

Concept	2015 Q3	2014 Q3
Revenue	$18.67B	$16.79B
YoY Change	11.18%	3.96%
Cost Of Revenue	$5.582B	$4.772B
YoY Change	16.97%	-0.31%
Gross Profit	$13.09B	$12.02B
YoY Change	8.89%	5.76%
Gross Profit Margin	70.1%	71.58%
Selling, General & Admin	$6.903B	$6.315B
YoY Change	9.31%	4.66%
% of Gross Profit	52.75%	52.54%
Research & Development
YoY Change
% of Gross Profit
Depreciation & Amortization	$1.697B	$1.539B
YoY Change	10.27%	1.25%
% of Gross Profit	12.97%	12.8%
Operating Expenses	$9.086B	$8.274B
YoY Change	9.81%	4.08%
Operating Profit	$4.001B	$3.745B
YoY Change	6.84%	9.7%
Interest Expense	$659.0M	$663.0M
YoY Change	-0.6%	3.76%
% of Operating Profit	16.47%	17.7%
Other Income/Expense, Net	-$737.0M	-$705.0M
YoY Change	4.54%	14.63%
Pretax Income	$3.264B	$3.040B
YoY Change	7.37%	8.61%
Income Tax	$1.223B	$407.0M
% Of Pretax Income	37.47%	13.39%
Net Earnings	$1.996B	$2.592B
YoY Change	-22.99%	49.65%
Net Earnings / Revenue	10.69%	15.44%
Basic Earnings Per Share	$0.81	$1.00
Diluted Earnings Per Share	$0.80	$0.99
COMMON SHARES
Basic Shares Outstanding	2.472B shares	2.580B shares
Diluted Shares Outstanding	2.502B shares	2.616B shares

Balance Sheet

Concept	2015 Q3	2014 Q3
SHORT-TERM ASSETS
Cash & Short-Term Investments	$2.060B	$5.135B
YoY Change	-59.88%	-19.68%
Cash & Equivalents	$1.893B	$4.547B
Short-Term Investments	$167.0M	$588.0M
Other Short-Term Assets	$1.814B	$1.694B
YoY Change	7.08%	-21.97%
Inventory
Prepaid Expenses
Receivables	$6.527B	$6.172B
Other Receivables	$0.00	$0.00
Total Short-Term Assets	$11.50B	$13.94B
YoY Change	-17.47%	3.95%
LONG-TERM ASSETS
Property, Plant & Equipment	$32.17B	$30.36B
YoY Change	5.95%	5.4%
Goodwill	$27.49B	$27.32B
YoY Change	0.62%
Intangibles
YoY Change
Long-Term Investments	$801.0M	$1.024B
YoY Change	-21.78%	-1.54%
Other Assets	$2.500B	$2.474B
YoY Change	1.05%	5.5%
Total Long-Term Assets	$147.5B	$145.3B
YoY Change	1.48%	1.48%
TOTAL ASSETS
Total Short-Term Assets	$11.50B	$13.94B
Total Long-Term Assets	$147.5B	$145.3B
Total Assets	$159.0B	$159.2B
YoY Change	-0.18%	1.69%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable	$5.996B	$5.680B
YoY Change	5.56%	-5.84%
Accrued Expenses	$5.455B	$5.461B
YoY Change	-0.11%	-41.25%
Deferred Revenue
YoY Change
Short-Term Debt	$0.00	$0.00
YoY Change
Long-Term Debt Due	$3.152B	$3.523B
YoY Change	-10.53%	50.75%
Total Short-Term Liabilities	$17.36B	$17.08B
YoY Change	1.61%	-8.48%
LONG-TERM LIABILITIES
Long-Term Debt	$44.61B	$44.83B
YoY Change	-0.5%	1.45%
Other Long-Term Liabilities	$10.69B	$10.39B
YoY Change	2.95%	-9.61%
Total Long-Term Liabilities	$10.69B	$10.39B
YoY Change	2.95%	-81.34%
TOTAL LIABILITIES
Total Short-Term Liabilities	$17.36B	$17.08B
Total Long-Term Liabilities	$10.69B	$10.39B
Total Liabilities	$28.05B	$27.47B
YoY Change	2.11%	-74.3%
SHAREHOLDERS EQUITY
Retained Earnings	$20.88B	$21.81B
YoY Change	-4.23%
Common Stock	$29.00M	$30.00M
YoY Change	-3.33%	0.0%
Preferred Stock
YoY Change
Treasury Stock (at cost)	$7.517B	$7.517B
YoY Change	0.0%
Treasury Stock Shares
Shareholders Equity	$51.72B	$53.30B
YoY Change
Total Liabilities & Shareholders Equity	$159.0B	$159.2B
YoY Change	-0.18%	1.69%

Cashflow Statement

Concept	2015 Q3	2014 Q3
OPERATING ACTIVITIES
Net Income	$1.996B	$2.592B
YoY Change	-22.99%	49.65%
Depreciation, Depletion And Amortization	$1.697B	$1.539B
YoY Change	10.27%	1.25%
Cash From Operating Activities	$4.979B	$4.755B
YoY Change	4.71%	19.05%
INVESTING ACTIVITIES
Capital Expenditures	$2.165B	$1.950B
YoY Change	11.03%	12.98%
Acquisitions
YoY Change
Other Investing Activities	-$487.0M	$16.00M
YoY Change	-3143.75%	-104.09%
Cash From Investing Activities	-$2.968B	-$2.192B
YoY Change	35.4%	-7.39%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net
YoY Change
Debt Paid & Issued, Net
YoY Change
Cash From Financing Activities	-3.604B	455.0M
YoY Change	-892.09%	-132.2%
NET CHANGE
Cash From Operating Activities	4.979B	4.755B
Cash From Investing Activities	-2.968B	-2.192B
Cash From Financing Activities	-3.604B	455.0M
Net Change In Cash	-1.593B	3.018B
YoY Change	-152.78%	1310.28%
FREE CASH FLOW
Cash From Operating Activities	$4.979B	$4.755B
Capital Expenditures	$2.165B	$1.950B
Free Cash Flow	$2.814B	$2.805B
YoY Change	0.32%	23.68%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value	Unit
CY2015Q3	us-gaap	Long Term Investments LongTermInvestments	3323000000	USD
	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	2.48
	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.75
CY2015Q3	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.25
	us-gaap	Stock Issued During Period Value Employee Stock Purchase Plan StockIssuedDuringPeriodValueEmployeeStockPurchasePlan	91000000	USD
	cmcsa	Equity Profit Loss EquityProfitLoss	6298000000	USD
CY2014Q3	us-gaap	Costs And Expenses CostsAndExpenses	13046000000	USD
CY2015Q3	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax	1000000	USD
CY2015Q3	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	-737000000	USD
	us-gaap	Share Based Compensation ShareBasedCompensation	386000000	USD
CY2014Q4	cmcsa	Accrued Expenses And Other Current Liabilities Including Deferred Revenue AccruedExpensesAndOtherCurrentLiabilitiesIncludingDeferredRevenue	6208000000	USD
CY2014Q4	us-gaap	Deferred Revenue Current DeferredRevenueCurrent	915000000	USD
CY2014Q3	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	3000000	USD
CY2014Q4	us-gaap	Treasury Stock Value TreasuryStockValue	7517000000	USD
CY2015Q3	cmcsa	Theatrical Film Costs In Production And In Development TheatricalFilmCostsInProductionAndInDevelopment	768000000	USD
CY2015Q3	us-gaap	Theatrical Film Costs TheatricalFilmCosts	2341000000	USD
	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	97000000	USD
CY2014Q4	us-gaap	Assets Fair Value Disclosure AssetsFairValueDisclosure	810000000	USD
CY2015Q3	us-gaap	Common Stock Value CommonStockValue	29000000	USD
CY2015Q3	us-gaap	Accumulated Other Comprehensive Income Loss Cumulative Changes In Net Gain Loss From Cash Flow Hedges Effect Net Of Tax AccumulatedOtherComprehensiveIncomeLossCumulativeChangesInNetGainLossFromCashFlowHedgesEffectNetOfTax	-29000000	USD
CY2014Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1
CY2014Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.99
CY2015Q3	us-gaap	Additional Paid In Capital AdditionalPaidInCapital	38516000000	USD
CY2014Q4	us-gaap	Equity Method Investments EquityMethodInvestments	1019000000	USD
CY2015Q3	us-gaap	Short Term Investments ShortTermInvestments	137000000	USD
CY2014Q4	us-gaap	Minority Interest MinorityInterest	357000000	USD
CY2015Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.81
CY2014Q4	us-gaap	Preferred Stock Value PreferredStockValue	0	USD
	cmcsa	Noncash Interest Expense Income Net NoncashInterestExpenseIncomeNet	132000000	USD
CY2015Q3	cmcsa	Film And Television Costs FilmAndTelevisionCosts	5712000000	USD
CY2014Q3	us-gaap	Impairment Of Investments ImpairmentOfInvestments	6000000	USD
	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	-268000000	USD
CY2014Q4	us-gaap	Theatrical Film Costs Completed And Not Released TheatricalFilmCostsCompletedAndNotReleased	71000000	USD
	us-gaap	Interest Expense InterestExpense	2028000000	USD
	us-gaap	Management Fees Revenue ManagementFeesRevenue	0	USD
	us-gaap	Profit Loss ProfitLoss	6596000000	USD
	cmcsa	Other Operating And Administrative OtherOperatingAndAdministrative	14688000000	USD
	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	-1842000000	USD
	us-gaap	Operating Income Loss OperatingIncomeLoss	11996000000	USD
CY2014Q3	cmcsa	Cable Segment Revenue Types As Percentage Of Total Cable Revenue CableSegmentRevenueTypesAsPercentageOfTotalCableRevenue	1	pure
	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	310000000	USD
	cmcsa	Fair Value Of Restricted Share Units Granted FairValueOfRestrictedShareUnitsGranted	59.5
	cmcsa	Stock Options Granted StockOptionsGranted	17600000	shares
	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	37000000	shares
	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	2629000000	shares
CY2014Q4	cmcsa	Derivative Fair Value Of Embedded Derivative Liability Component Of Prepaid Forward Sale Agreements And Indexed Debt Instruments DerivativeFairValueOfEmbeddedDerivativeLiabilityComponentOfPrepaidForwardSaleAgreementsAndIndexedDebtInstruments	361000000	USD
CY2014Q4	us-gaap	Commitments And Contingencies CommitmentsAndContingencies		USD
CY2014Q4	us-gaap	Stockholders Equity StockholdersEquity	52711000000	USD
	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2015
	us-gaap	Realized Investment Gains Losses RealizedInvestmentGainsLosses	7000000	USD
	us-gaap	Impairment Of Investments ImpairmentOfInvestments	46000000	USD
	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesTax	1000000	USD
	us-gaap	Other Comprehensive Income Loss Foreign Currency Translation Adjustment Tax OtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentTax	-23000000	USD
	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansTax	-8000000	USD
	cmcsa	Loss On Early Extinguishment Of Debt LossOnEarlyExtinguishmentOfDebt	47000000	USD
CY2014Q3	cmcsa	Transactioncostsandtransactionrelatedcosts Transactioncostsandtransactionrelatedcosts	77000000	USD
	cmcsa	Transactioncostsandtransactionrelatedcosts Transactioncostsandtransactionrelatedcosts	138000000	USD
CY2014Q3	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax	-16000000	USD
	us-gaap	Increase Decrease In Other Operating Capital Net IncreaseDecreaseInOtherOperatingCapitalNet	-623000000	USD
	cmcsa	Net Transactions With Affiliates NetTransactionsWithAffiliates	0	USD
CY2015Q3	us-gaap	Other Intangible Assets Net OtherIntangibleAssetsNet	16896000000	USD
CY2014Q4	cmcsa	Programming Rights Less Amortization ProgrammingRightsLessAmortization	2157000000	USD
CY2015Q3	us-gaap	Direct To Television Film Costs DirectToTelevisionFilmCosts	2204000000	USD
CY2014Q3	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax	0	USD
CY2014Q3	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	2650000000	USD
CY2014Q4	us-gaap	Goodwill Goodwill	27316000000	USD
CY2015Q3	cmcsa	Accrued Expenses And Other Current Liabilities Including Deferred Revenue AccruedExpensesAndOtherCurrentLiabilitiesIncludingDeferredRevenue	6720000000	USD
CY2015Q3	cmcsa	Programming Rights Current ProgrammingRightsCurrent	1130000000	USD
CY2015Q3	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	1223000000	USD
CY2015Q3	us-gaap	Long Term Debt Fair Value LongTermDebtFairValue	53200000000	USD
CY2015Q3	us-gaap	Debt And Capital Lease Obligations DebtAndCapitalLeaseObligations	47800000000	USD
CY2014Q3	us-gaap	Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Tax OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodTax	-2000000	USD
	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-3393000000	USD
	us-gaap	Stock Repurchased And Retired During Period Value StockRepurchasedAndRetiredDuringPeriodValue	5770000000	USD
	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-8626000000	USD
CY2015Q3	us-gaap	Preferred Stock Value PreferredStockValue	0	USD
CY2015Q3	cmcsa	Redeemable Noncontrolling Interests And Redeemable Subsidiary Preferred Stock RedeemableNoncontrollingInterestsAndRedeemableSubsidiaryPreferredStock	1204000000	USD
CY2015Q3	us-gaap	Depreciation And Amortization DepreciationAndAmortization	2183000000	USD
	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	13813000000	USD
	us-gaap	Equity Method Investment Dividends Or Distributions EquityMethodInvestmentDividendsOrDistributions	139000000	USD
CY2014Q4	us-gaap	Deferred Tax Liabilities Noncurrent DeferredTaxLiabilitiesNoncurrent	32959000000	USD
CY2015Q3	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	10694000000	USD
CY2015Q3	us-gaap	Marketable Securities MarketableSecurities	167000000	USD
CY2014Q4	us-gaap	Other Assets Current OtherAssetsCurrent	1859000000	USD
	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-7204000000	USD
	dei	Trading Symbol TradingSymbol	cmcsa
CY2014Q4	us-gaap	Cost Method Investments CostMethodInvestments	2056000000	USD
CY2014Q3	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	1950000000	USD
	cmcsa	Payments For Acquisitions And Construction Of Real Estate Properties PaymentsForAcquisitionsAndConstructionOfRealEstateProperties	28000000	USD
CY2015Q3	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	1000000	USD
CY2015Q3	cmcsa	Direct To Television Film Costs In Production And In Development DirectToTelevisionFilmCostsInProductionAndInDevelopment	699000000	USD
CY2014Q3	cmcsa	Operating Income Excluding Depreciation And Amortization OperatingIncomeExcludingDepreciationAndAmortization	5704000000	USD
CY2015Q3	us-gaap	Interest Paid Net InterestPaidNet	673000000	USD
CY2015Q3	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansTax	-8000000	USD
CY2015Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.8
CY2014Q3	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	33000000	USD
CY2015Q3	us-gaap	Assets Assets	158958000000	USD
CY2014Q4	us-gaap	Allowance For Doubtful Accounts Receivable Current AllowanceForDoubtfulAccountsReceivableCurrent	205000000	USD
	us-gaap	Stockholders Equity Other StockholdersEquityOther	-87000000	USD
CY2015Q3	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci On Derivatives Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIOnDerivativesTax	-20000000	USD
CY2014Q3	us-gaap	Sales Revenue Services Net SalesRevenueServicesNet	16791000000	USD
CY2014Q4	us-gaap	Preferred Stock Shares Authorized PreferredStockSharesAuthorized	20000000	shares
	us-gaap	Payments Of Dividends PaymentsOfDividends	1676000000	USD
CY2014Q4	us-gaap	Long Term Debt And Capital Lease Obligations LongTermDebtAndCapitalLeaseObligations	44017000000	USD
CY2014Q4	us-gaap	Common Stock Value CommonStockValue	30000000	USD
CY2015Q3	us-gaap	Depreciation Depreciation	1697000000	USD
CY2015Q3	us-gaap	Line Of Credit Facility Remaining Borrowing Capacity LineOfCreditFacilityRemainingBorrowingCapacity	6700000000	USD
	us-gaap	Proceeds From Repayments Of Short Term Debt ProceedsFromRepaymentsOfShortTermDebt	-220000000	USD
	us-gaap	Cash And Cash Equivalents Period Increase Decrease CashAndCashEquivalentsPeriodIncreaseDecrease	2829000000	USD
	cmcsa	Gain Loss On Investments And Noncash Other Income Expense Net GainLossOnInvestmentsAndNoncashOtherIncomeExpenseNet	344000000	USD
CY2015Q3	us-gaap	Business Combination Contingent Consideration Liability BusinessCombinationContingentConsiderationLiability	0	USD
CY2015Q3	us-gaap	Costs And Expenses CostsAndExpenses	14668000000	USD
	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	189000000	USD
CY2014Q3	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	98000000	USD
CY2014Q4	us-gaap	Other Liabilities Fair Value Disclosure OtherLiabilitiesFairValueDisclosure	8000000	USD
CY2014Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-146000000	USD
	dei	Current Fiscal Year End Date CurrentFiscalYearEndDate	--12-31
CY2015Q3	us-gaap	Investment Income Nonoperating InvestmentIncomeNonoperating	-26000000	USD
CY2015Q3	cmcsa	Programming And Production Costs ProgrammingAndProductionCosts	5582000000	USD
	us-gaap	Proceeds From Repayments Of Short Term Debt ProceedsFromRepaymentsOfShortTermDebt	-437000000	USD
	us-gaap	Repayments Of Other Debt RepaymentsOfOtherDebt	3172000000	USD
	dei	Document Period End Date DocumentPeriodEndDate	2015-09-30
CY2015Q3	us-gaap	Preferred Stock Shares Issued PreferredStockSharesIssued	0	shares
	cmcsa	Proceeds From Sales Of Businesses And Investments ProceedsFromSalesOfBusinessesAndInvestments	420000000	USD
CY2015Q3	us-gaap	Marketing And Advertising Expense MarketingAndAdvertisingExpense	1509000000	USD
CY2014Q4	us-gaap	Liabilities Current LiabilitiesCurrent	17410000000	USD
CY2013Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	51058000000	USD
CY2014Q4	us-gaap	Interest Rate Derivative Assets At Fair Value InterestRateDerivativeAssetsAtFairValue	84000000	USD
CY2014Q4	us-gaap	Additional Paid In Capital AdditionalPaidInCapital	38805000000	USD
CY2015Q3	us-gaap	Revenues Revenues	18669000000	USD
CY2015Q3	cmcsa	Programming Rights Less Amortization ProgrammingRightsLessAmortization	2297000000	USD
	cmcsa	Distributions To Noncontrolling Interests And Dividends For Redeemable Subsidiary Preferred Stock DistributionsToNoncontrollingInterestsAndDividendsForRedeemableSubsidiaryPreferredStock	170000000	USD
	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	3797000000	USD
CY2015Q3	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	20883000000	USD
CY2014Q3	us-gaap	Interest Expense InterestExpense	663000000	USD
	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	12302000000	USD
CY2014Q4	us-gaap	Available For Sale Securities AvailableForSaleSecurities	132000000	USD
	us-gaap	Payments To Acquire Investments PaymentsToAcquireInvestments	145000000	USD
	cmcsa	Distributions To Noncontrolling Interests And Dividends For Redeemable Subsidiary Preferred Stock DistributionsToNoncontrollingInterestsAndDividendsForRedeemableSubsidiaryPreferredStock	178000000	USD
	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-53000000	USD
CY2015Q3	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	30000000	shares
CY2014Q3	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	420000000	USD
CY2014Q3	cmcsa	Other Investment Income Loss Net OtherInvestmentIncomeLossNet	-7000000	USD
CY2014Q3	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	2616000000	shares
CY2015Q3	us-gaap	Net Income Loss NetIncomeLoss	1996000000	USD
CY2014Q3	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	36000000	shares
CY2014Q4	us-gaap	Trading Securities TradingSecurities	523000000	USD
CY2014Q3	us-gaap	Depreciation Depreciation	1539000000	USD
CY2015Q3	us-gaap	Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Tax OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodTax	-30000000	USD
	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	-150000000	USD
	us-gaap	Operating Income Loss OperatingIncomeLoss	11117000000	USD
	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	-202000000	USD
	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	10154000000	USD
	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	-313000000	USD
CY2014Q4	cmcsa	Returns And Incentives Allowance ReturnsAndIncentivesAllowance	359000000	USD
CY2015Q3	us-gaap	Allowance For Doubtful Accounts Receivable Current AllowanceForDoubtfulAccountsReceivableCurrent	236000000	USD
CY2014Q3	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci On Derivatives Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIOnDerivativesNetOfTax	-38000000	USD
CY2014Q4	us-gaap	Accounts Receivable Gross Current AccountsReceivableGrossCurrent	6885000000	USD
CY2014Q3	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	53653000000	USD
CY2015Q3	us-gaap	Debt Current DebtCurrent	3152000000	USD
CY2014Q4	us-gaap	Accrued Liabilities Current AccruedLiabilitiesCurrent	5293000000	USD
CY2014Q4	cmcsa	Other Stockholders Equity OtherStockholdersEquity	52681000000	USD
CY2014Q4	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	2333000000	USD
	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-49000000	USD
	cmcsa	Proceeds From Sales Of Businesses And Investments ProceedsFromSalesOfBusinessesAndInvestments	622000000	USD
	cmcsa	Equity Profit Loss EquityProfitLoss	6547000000	USD
	us-gaap	Payments To Acquire Intangible Assets PaymentsToAcquireIntangibleAssets	735000000	USD
	cmcsa	Fair Value Equity Securities Settlement FairValueEquitySecuritiesSettlement	517000000	USD
	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	6543000000	USD
	us-gaap	Interest Paid Net InterestPaidNet	1914000000	USD
	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	3145000000	USD
	cmcsa	Fair Value Of Stock Options Granted FairValueOfStockOptionsGranted	11.79
	cmcsa	Mark To Market Adjustment On Derivative Component Of Prepaid Forward Sale Agreements MarkToMarketAdjustmentOnDerivativeComponentOfPrepaidForwardSaleAgreements	-19000000	USD
CY2014Q4	cmcsa	Direct To Television Film Costs In Production And In Development DirectToTelevisionFilmCostsInProductionAndInDevelopment	505000000	USD
CY2015Q3	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	2165000000	USD
CY2014Q4	cmcsa	Theatrical Film Costs In Production And In Development TheatricalFilmCostsInProductionAndInDevelopment	1189000000	USD
CY2014Q4	us-gaap	Theatrical Film Costs TheatricalFilmCosts	2631000000	USD
CY2014Q4	us-gaap	Investments Investments	3737000000	USD
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	us-gaap	Description Of New Accounting Pronouncements Not Yet Adopted DescriptionOfNewAccountingPronouncementsNotYetAdopted	<div><p style='text-align:left;margin-top:0pt;margin-bottom:5.4pt;line-height:15pt;' ><font style='font-family:Helvetica;font-size:12pt;font-weight:bold;margin-left:0pt;' >Note 2</font><font style='font-family:Helvetica;font-size:12pt;font-weight:bold;' >: Recent Accounting Pronouncements</font></p><p style='text-align:left;margin-top:0pt;margin-bottom:5.4pt;line-height:13pt;' ><font style='font-family:Helvetica;font-size:10pt;font-weight:bold;margin-left:0pt;' >Revenue Recognition</font></p><p style='text-align:left;margin-top:0pt;margin-bottom:5.4pt;line-height:13pt;' ><font style='font-family:Times New Roman;font-size:10pt;margin-left:0pt;' >In May 2014, the Financial Accounting Standards Board (“FASB”) and the International Accounting Standards Board updated the accounting guidance related to revenue recognition. The </font><font style='font-family:Times New Roman;font-size:10pt;' >updated accounting guidance provides a single, contract-based revenue recognition model to help improve financial reporting by providing clearer guidance on when an entity should recognize revenue, and by reducing the number of standards to which an entity</font><font style='font-family:Times New Roman;font-size:10pt;' > has to refer. </font><font style='font-family:Times New Roman;font-size:10pt;' >In </font><font style='font-family:Times New Roman;font-size:10pt;' >July 2015, </font><font style='font-family:Times New Roman;font-size:10pt;' >FASB </font><font style='font-family:Times New Roman;font-size:10pt;' >voted to </font><font style='font-family:Times New Roman;font-size:10pt;' >defer the effective date by one year to December 15, 2017 for annual reporting periods beginning after that date. </font><font style='font-family:Times New Roman;font-size:10pt;' >The updated accounting guidance provides companies with alternative methods of adoption. We are cur</font><font style='font-family:Times New Roman;font-size:10pt;' >rently in the process of determining the impact that the updated accounting guidance will have on our consolidated financial statements and our method of adoption.</font></p><p style='text-align:left;margin-top:0pt;margin-bottom:5.4pt;line-height:13pt;' ><font style='font-family:Helvetica;font-size:10pt;font-weight:bold;margin-left:0pt;' >Consolidations</font></p><p style='text-align:left;margin-top:0pt;margin-bottom:5.4pt;line-height:13pt;' ><font style='font-family:Times New Roman;font-size:10pt;margin-left:0pt;' >In February 2015, FASB updated the accounting guidance related to consolidati</font><font style='font-family:Times New Roman;font-size:10pt;' >on under the variable interest entity (“VIE”) and voting interest entity models. The updated accounting guidance modifies the consolidation guidance for VIEs, limited partnerships and similar legal entities. The updated accounting guidance will be effectiv</font><font style='font-family:Times New Roman;font-size:10pt;' >e for us on January 1, 2016, and early adoption is permitted. The updated accounting guidance </font><font style='font-family:Times New Roman;font-size:10pt;' >provides companies with alternative methods of adoption</font><font style='font-family:Times New Roman;font-size:10pt;' >. We are currently in the process of determining th</font><font style='font-family:Times New Roman;font-size:10pt;' >e impact that the updated accounting guidance will have on our consolidated financial statements and our method of adoption.</font></p><p style='text-align:left;margin-top:0pt;margin-bottom:5.4pt;line-height:13pt;' ><font style='font-family:Helvetica;font-size:10pt;font-weight:bold;margin-left:0pt;' >Debt Issuance Costs</font></p><p style='text-align:left;margin-top:0pt;margin-bottom:5.4pt;line-height:13pt;' ><font style='font-family:Times New Roman;font-size:10pt;margin-left:0pt;' >In April 2015, FASB updated t</font><font style='font-family:Times New Roman;font-size:10pt;' >he accounting guidance related to the </font><font style='font-family:Times New Roman;font-size:10pt;' >balance sheet presentation of </font><font style='font-family:Times New Roman;font-size:10pt;' >debt issuance </font><font style='font-family:Times New Roman;font-size:10pt;' >costs. The updated accounting guidance</font><font style='font-family:Times New Roman;font-size:10pt;' > requires that debt issuance costs </font><font style='font-family:Times New Roman;font-size:10pt;' >be presented </font><font style='font-family:Times New Roman;font-size:10pt;' >as a direct deduction from the associated debt liability</font><font style='font-family:Times New Roman;font-size:10pt;' >. The updated accounting guidance will be effective for us on January 1, 2016, and early adoption is permitted. Th</font><font style='font-family:Times New Roman;font-size:10pt;' >e updated accounting guidance will be applied retrospectively to all</font><font style='font-family:Times New Roman;font-size:10pt;' > prior periods presented. T</font><font style='font-family:Times New Roman;font-size:10pt;' >he updated accounting guidance will</font><font style='font-family:Times New Roman;font-size:10pt;' > not </font><font style='font-family:Times New Roman;font-size:10pt;' >have </font><font style='font-family:Times New Roman;font-size:10pt;' >a material impact </font><font style='font-family:Times New Roman;font-size:10pt;' >on our consolidated </font><font style='font-family:Times New Roman;font-size:10pt;' >balance sheet</font><font style='font-family:Times New Roman;font-size:10pt;' >.</font></p></div>
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CY2015Q3	us-gaap	Accounts Receivable Net Current AccountsReceivableNetCurrent	6527000000	USD
CY2015Q3	us-gaap	Minority Interest MinorityInterest	249000000	USD
CY2015Q3	cmcsa	Net Income Loss Attributable To Noncontrolling Interests And Redeemable Subsidiary Preferred Stock NetIncomeLossAttributableToNoncontrollingInterestsAndRedeemableSubsidiaryPreferredStock	45000000	USD
CY2014Q4	us-gaap	Fair Value Liabilities Measured On Recurring Basis Obligations FairValueLiabilitiesMeasuredOnRecurringBasisObligations	883000000	USD
CY2014Q3	us-gaap	Net Income Loss NetIncomeLoss	2592000000	USD
CY2015Q3	us-gaap	Operating Income Loss OperatingIncomeLoss	4001000000	USD
CY2015Q3	us-gaap	Assets Current AssetsCurrent	11501000000	USD
CY2014Q4	us-gaap	Other Intangible Assets Net OtherIntangibleAssetsNet	16980000000	USD
	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	5770000000	USD
CY2015Q3	cmcsa	Accrued Participations And Residuals Current AccruedParticipationsAndResidualsCurrent	1491000000	USD
CY2014Q4	us-gaap	Liabilities Fair Value Disclosure LiabilitiesFairValueDisclosure	1896000000	USD
CY2014Q4	us-gaap	Marketable Securities MarketableSecurities	662000000	USD
CY2015Q3	us-gaap	Dividends Payable Amount Per Share DividendsPayableAmountPerShare	0.25
CY2013Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	1718000000	USD
CY2015Q3	us-gaap	Investments Investments	3460000000	USD
CY2015Q3	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-195000000	USD
CY2014Q4	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	10819000000	USD
CY2014Q3	us-gaap	Investment Income Interest And Dividend InvestmentIncomeInterestAndDividend	29000000	USD
CY2014Q3	us-gaap	Profit Loss ProfitLoss	2633000000	USD
	us-gaap	Stock Repurchased And Retired During Period Value StockRepurchasedAndRetiredDuringPeriodValue	2250000000	USD
CY2015Q3	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	2472000000	shares
	us-gaap	Increase Decrease In Accounts Payable And Accrued Liabilities IncreaseDecreaseInAccountsPayableAndAccruedLiabilities	119000000	USD
CY2015Q3	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	3264000000	USD
CY2014Q3	us-gaap	Interest Paid Net InterestPaidNet	656000000	USD
CY2015Q3	us-gaap	Indefinite Lived Franchise Rights IndefiniteLivedFranchiseRights	59364000000	USD
	cmcsa	Noncash Interest Expense Income Net NoncashInterestExpenseIncomeNet	147000000	USD
CY2015Q3	us-gaap	Other Assets Current OtherAssetsCurrent	1814000000	USD
	dei	Entity Registrant Name EntityRegistrantName	COMCAST CORP
CY2014Q3	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetOfTax	1000000	USD
CY2014Q3	us-gaap	Other Comprehensive Income Loss Foreign Currency Translation Adjustment Tax OtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentTax	-10000000	USD
CY2015Q3	cmcsa	Derivative Fair Value Of Embedded Derivative Liability Component Of Prepaid Forward Sale Agreements And Indexed Debt Instruments DerivativeFairValueOfEmbeddedDerivativeLiabilityComponentOfPrepaidForwardSaleAgreementsAndIndexedDebtInstruments	7000000	USD
CY2014Q4	us-gaap	Accounts Payable Current AccountsPayableCurrent	5638000000	USD
CY2014Q4	cmcsa	Total Film And Television Costs And Programming Rights After Amortization TotalFilmAndTelevisionCostsAndProgrammingRightsAfterAmortization	6566000000	USD
CY2015Q3	us-gaap	Fair Value Liabilities Measured On Recurring Basis Obligations FairValueLiabilitiesMeasuredOnRecurringBasisObligations	1056000000	USD
	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	1748000000	USD
CY2015Q3	us-gaap	Sales Revenue Services Net SalesRevenueServicesNet	18669000000	USD
CY2014Q4	us-gaap	Assets Current AssetsCurrent	13531000000	USD
CY2015Q3	us-gaap	Equity Method Investments EquityMethodInvestments	801000000	USD
	us-gaap	Sales Revenue Services Net SalesRevenueServicesNet	55265000000	USD
	us-gaap	Payments To Acquire Intangible Assets PaymentsToAcquireIntangibleAssets	916000000	USD
	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	121000000	USD
	cmcsa	Contributions From And Distributions To Noncontrolling Interests ContributionsFromAndDistributionsToNoncontrollingInterests	-114000000	USD
CY2014Q4	us-gaap	Preferred Stock Shares Issued PreferredStockSharesIssued	0	shares
CY2014Q3	us-gaap	Accumulated Other Comprehensive Income Loss Cumulative Changes In Net Gain Loss From Cash Flow Hedges Effect Net Of Tax AccumulatedOtherComprehensiveIncomeLossCumulativeChangesInNetGainLossFromCashFlowHedgesEffectNetOfTax	-29000000	USD
CY2014Q4	us-gaap	Indefinite Lived Franchise Rights IndefiniteLivedFranchiseRights	59364000000	USD
CY2015Q3	us-gaap	Other Assets Fair Value Disclosure OtherAssetsFairValueDisclosure	29000000	USD
CY2015Q3	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax	-25000000	USD
CY2015Q3	us-gaap	Profit Loss ProfitLoss	2041000000	USD
CY2014Q3	us-gaap	Depreciation And Amortization DepreciationAndAmortization	1959000000	USD
CY2015Q3	us-gaap	Liabilities Current LiabilitiesCurrent	17359000000	USD
CY2015Q3	us-gaap	Finite Lived Intangible Assets Accumulated Amortization FiniteLivedIntangibleAssetsAccumulatedAmortization	11251000000	USD
CY2014Q4	us-gaap	Debt Current DebtCurrent	4217000000	USD
CY2014Q3	cmcsa	Net Income Loss Attributable To Noncontrolling Interests And Redeemable Subsidiary Preferred Stock NetIncomeLossAttributableToNoncontrollingInterestsAndRedeemableSubsidiaryPreferredStock	41000000	USD
CY2014Q3	us-gaap	Accumulated Other Comprehensive Income Loss Foreign Currency Translation Adjustment Net Of Tax AccumulatedOtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentNetOfTax	-41000000	USD
CY2014Q4	us-gaap	Assets Assets	159339000000	USD
CY2014Q4	us-gaap	Business Combination Contingent Consideration Liability BusinessCombinationContingentConsiderationLiability	644000000	USD
	us-gaap	Increase Decrease In Accounts Payable And Accrued Liabilities IncreaseDecreaseInAccountsPayableAndAccruedLiabilities	169000000	USD
CY2015Q3	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	51965000000	USD
	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	2759000000	USD
	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	87000000	USD
	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	9355000000	USD
	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	210000000	USD
CY2014Q3	us-gaap	Revenues Revenues	16791000000	USD
CY2015Q3	cmcsa	Liabilities Related To Prepaid Forward Sale Agreements LiabilitiesRelatedToPrepaidForwardSaleAgreements	0	USD
CY2014Q4	cmcsa	Investments In And Amounts Due From Subsidiaries Eliminated Upon Consolidation InvestmentsInAndAmountsDueFromSubsidiariesEliminatedUponConsolidation	0	USD
	cmcsa	Other Operating And Administrative OtherOperatingAndAdministrative	15753000000	USD
CY2015Q3	us-gaap	Management Fees Revenue ManagementFeesRevenue	0	USD
	us-gaap	Revenues Revenues	55265000000	USD
	cmcsa	Programming And Production Costs ProgrammingAndProductionCosts	16714000000	USD
	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	6308000000	USD
	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetOfTax	1000000	USD
	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci On Derivatives Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIOnDerivativesNetOfTax	-42000000	USD
	us-gaap	Investment Income Interest And Dividend InvestmentIncomeInterestAndDividend	85000000	USD
	us-gaap	Unrealized Gain Loss On Securities UnrealizedGainLossOnSecurities	-13000000	USD
	cmcsa	Mark To Market Adjustment On Derivative Component Of Prepaid Forward Sale Agreements MarkToMarketAdjustmentOnDerivativeComponentOfPrepaidForwardSaleAgreements	42000000	USD
	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	2.49
	us-gaap	Depreciation Depreciation	4707000000	USD
	us-gaap	Costs And Expenses CostsAndExpenses	39926000000	USD
	cmcsa	Cable Segment Revenue Types As Percentage Of Total Cable Revenue CableSegmentRevenueTypesAsPercentageOfTotalCableRevenue	1	pure
	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax	34000000	USD
	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax	19000000	USD
	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetOfTax	98000000	USD
	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax	1000000	USD
	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	6143000000	USD
	cmcsa	Other Investment Income Loss Net OtherInvestmentIncomeLossNet	17000000	USD
CY2014Q3	us-gaap	Unrealized Gain Loss On Securities UnrealizedGainLossOnSecurities	15000000	USD
	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.675
	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	-1762000000	USD
	us-gaap	Net Income Loss NetIncomeLoss	6192000000	USD
	us-gaap	Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodNetOfTax	-2000000	USD
	us-gaap	Interest Paid Net InterestPaidNet	1820000000	USD
	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	343000000	USD
	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci On Derivatives Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIOnDerivativesNetOfTax	-18000000	USD
	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	5196000000	USD
	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	2498000000	shares
	cmcsa	Other Investment Income Loss Net OtherInvestmentIncomeLossNet	-20000000	USD
	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesTax	58000000	USD
	cmcsa	Write Offofassetsrelatedtomergeragreementtermination WriteOffofassetsrelatedtomergeragreementtermination	20000000	USD
	us-gaap	Proceeds From Issuance Of Long Term Debt ProceedsFromIssuanceOfLongTermDebt	3996000000	USD
	us-gaap	Capital Expenditures Incurred But Not Yet Paid CapitalExpendituresIncurredButNotYetPaid	1200000000	USD

Files In Submission

Name	View Source	Status
0001193125-15-354626-index-headers.html	Edgar Link	pending
0001193125-15-354626-index.html	Edgar Link	pending
0001193125-15-354626.txt	Edgar Link	pending
0001193125-15-354626-xbrl.zip	Edgar Link	pending
cmcsa-20150930.xml	Edgar Link	completed
cmcsa-20150930.xsd	Edgar Link	pending
cmcsa-20150930_cal.xml	Edgar Link	unprocessable
cmcsa-20150930_def.xml	Edgar Link	unprocessable
cmcsa-20150930_lab.xml	Edgar Link	unprocessable
cmcsa-20150930_pre.xml	Edgar Link	unprocessable
d98958d10q.htm	Edgar Link	pending
d98958dex101.htm	Edgar Link	pending
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FilingSummary.xml	Edgar Link	unprocessable
Financial_Report.xlsx	Edgar Link	pending
g98958g26o35.jpg	Edgar Link	pending
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report.css	Edgar Link	pending
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$CMCSA
COMCAST CORP Stock $cmcsa

2015 Q3 Form 10-Q Financial Statement

#000119312515354626 Filed on October 27, 2015

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$CMCSA COMCAST CORP Stock $cmcsa

2015 Q3 Form 10-Q Financial Statement

#000119312515354626 Filed on October 27, 2015

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$CMCSA
COMCAST CORP Stock $cmcsa