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Property and Equipment (Details) - USD ($) $ in Millions | 12 Months Ended |
--- | --- | ---
Dec. 31, 2019 | Dec. 31, 2018
Property, Plant and Equipment [Line Items] |  |
Property and equipment, at cost | $ 101,561 | $ 95,743
Less: Accumulated depreciation | 53,239 | 51,306
Property and equipment, net | 48,322 | 44,437
NBCUniversal Media LLC [Member] |  |
Property, Plant and Equipment [Line Items] |  |
Property and equipment, at cost | 21,550 | 18,183
Less: Accumulated depreciation | 5,799 | 4,994
Property and equipment, net | $ 15,751 | 13,189
Distribution System [Member] |  |
Property, Plant and Equipment [Line Items] |  |
Weighted-Average Original Useful Life | 11 years |
Property and equipment, at cost | $ 40,639 | 38,380
Customer Premise Equipment [Member] |  |
Property, Plant and Equipment [Line Items] |  |
Weighted-Average Original Useful Life | 6 years |
Property and equipment, at cost | $ 26,065 | 26,208
Other Equipment [Member] |  |
Property, Plant and Equipment [Line Items] |  |
Weighted-Average Original Useful Life | 9 years |
Property and equipment, at cost | $ 13,025 | 12,437
Buildings and Leasehold Improvements [Member] |  |
Property, Plant and Equipment [Line Items] |  |
Weighted-Average Original Useful Life | 30 years |
Property and equipment, at cost | $ 15,104 | 14,188
Buildings and Leasehold Improvements [Member] | NBCUniversal Media LLC [Member] |  |
Property, Plant and Equipment [Line Items] |  |
Weighted-Average Original Useful Life | 31 years |
Property and equipment, at cost | $ 9,438 | 8,877
Furniture, Fixtures and Equipment [Member] | NBCUniversal Media LLC [Member] |  |
Property, Plant and Equipment [Line Items] |  |
Weighted-Average Original Useful Life | 12 years |
Property and equipment, at cost | $ 6,049 | 5,501
Construction in Process [Member] |  |
Property, Plant and Equipment [Line Items] |  |
Property and equipment, at cost | 5,245 | 2,991
Construction in Process [Member] | NBCUniversal Media LLC [Member] |  |
Property, Plant and Equipment [Line Items] |  |
Property and equipment, at cost | 4,884 | 2,676
Land [Member] |  |
Property, Plant and Equipment [Line Items] |  |
Property and equipment, at cost | 1,483 | 1,539
Land [Member] | NBCUniversal Media LLC [Member] |  |
Property, Plant and Equipment [Line Items] |  |
Property and equipment, at cost | $ 1,179 | $ 1,129

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- Definition Amount of accumulated depreciation, depletion and amortization for physical assets used in the normal conduct of business to produce goods and services. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 360 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=6391035&loc=d3e2868-110229 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.14) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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- Definition Amount before accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 360 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6391035&loc=d3e2868-110229 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.13) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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