Acquisitions and Other Significant Events (Allocation of Purchase Price) (Details) (NBCUniversal [Member], USD $) In Millions, unless otherwise specified	Jan. 28, 2011
NBCUniversal [Member]
Business Acquisition [Line Items]
Film and television costs (see Note 5)	$ 5,049
Investments (see Note 6)	4,339
Property and equipment (see Note 17)	2,322
Intangible assets (see Note 8)	14,585
Working Capital	(1,734)
Long-term debt (see Note 9)	(9,115)
Deferred income tax liabilities	(35)
Other noncurrent assets and liabilities	(2,005)
Noncontrolling interests acquired	(262)
Fair value of identifiable net assets acquired	13,144
Goodwill	10,945
Assets and liabilities acquired, total	$ 24,089

Business Acquisition Purchase Price Allocation Film And Television Cost

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The amount of acquisition cost of a business combination allocated to an identifiable intangible asset that will be amortized and identifiable intangible asset that will not be amortized.

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The amount of acquisition cost of a business combination allocated to investments of the acquired entity.

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Business Acquisition Purchase Price Allocation Noncontrolling Interest Acquired

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Business Acquisition Purchase Price Allocation Other Noncurrent Assets And Liabilities

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Business Acquisition Purchase Price Allocation Working Capital

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The net amount recognized as of the acquisition date for the aggregate assets, including goodwill, in excess of or less than the aggregate liabilities and the noncontrolling interests acquired. Amount does not include adjustment for 49% redeemable noncontrolling interest.

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- Definition

Amount of deferred tax assets or liabilities for the differences between the values assigned and the tax bases of assets and liabilities in a business combination, net of any valuation allowance for deferred tax assets.

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Amount of goodwill arising from a business combination, which is the excess of the cost of the acquired entity over the amounts assigned to assets acquired and liabilities assumed.

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The amount of acquisition cost of a business combination allocated to the noncurrent portion of the long-term debt assumed from the acquired entity.

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The amount of acquisition cost of a business combination allocated to property, plant and equipment to be used in ongoing operations.

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The net amount recognized as of the acquisition date for the aggregate identifiable assets acquired in excess of or less than the aggregate liabilities assumed.

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