Consolidated Balance Sheet (USD $) In Millions, unless otherwise specified	Mar. 31, 2012	Dec. 31, 2011
Assets
Cash and cash equivalents	$ 2,207	$ 1,620
Receivables, net	4,379	4,351
Programming rights	1,011	987
Other current assets	1,758	1,615
Total current assets	9,355	8,573
Film and television costs	5,112	5,227
Investments	10,149	9,854
Property and equipment, net of accumulated depreciation of $37,275 and $36,528	26,962	27,559
Franchise rights	59,364	59,376
Goodwill	26,803	26,874
Other intangible assets, net of accumulated amortization of $6,978 and $6,665	18,001	18,165
Other noncurrent assets, net	2,203	2,190
Total assets	157,949	157,818
Current Liabilities:
Accounts payable and accrued expenses related to trade creditors	5,763	5,705
Accrued participations and residuals	1,394	1,255
Accrued expenses and other current liabilities	5,770	4,914
Current portion of long-term debt	2,705	1,367
Total current liabilities	15,632	13,241
Long-term debt, less current portion	35,080	37,942
Deferred income taxes	29,812	29,932
Other noncurrent liabilities	13,446	13,034
Commitments and contingencies (Note 14)
Redeemable noncontrolling interests	16,158	16,014
Equity:
Preferred stock - authorized, 20,000,000 shares; issued, zero	0	0
Common stock	31	32
Additional paid-in capital	40,893	40,940
Retained earnings	14,217	13,971
Treasury stock, 365,460,750 Class A common shares and 70,934,764 Class A Special common shares	(7,517)	(7,517)
Accumulated other comprehensive income (loss)	(148)	(152)
Total Comcast Corporation shareholders' equity	47,476	47,274
Noncontrolling interests	345	381
Total equity	47,821	47,655
Total liabilities and equity	157,949	157,818
Class A Common Stock [Member]
Equity:
Common stock	25	25
Class A Special Common Stock [Member]
Equity:
Common stock	6	7
Class B Common Stock [Member]
Equity:
Common stock	$ 0	$ 0