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Segment Information (Tables) | 6 Months Ended
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Jun. 30, 2018
Segment Reporting Information [Line Items] |
Financial Data by Business Segment | We use Adjusted EBITDA to evaluate the profitability of our operating segments and the components of net income attributable to Comcast Corporation excluded from Adjusted EBITDA are not separately evaluated. Our financial data by business segment is presented in the tables below.
| Three Months Ended June 30, 2018
(in millions) | Revenue | Adjusted EBITDA(d) | Depreciation and Amortization | Capital Expenditures | Cash Paid for Intangible Assets
Cable Communications | $ | 13,710 |  | $ | 5,638 |  | $ | 2,047 |  | $ | 1,766 |  | $ | 328 |
NBCUniversal |  |  |  |  |
Cable Networks | 2,916 |  | 1,186 |  | 179 |  | 8 |  | 5 |
Broadcast Television | 2,391 |  | 417 |  | 40 |  | 32 |  | 3 |
Filmed Entertainment | 1,710 |  | 138 |  | 63 |  | 8 |  | 8 |
Theme Parks | 1,361 |  | 569 |  | 167 |  | 360 |  | 119 |
Headquarters and Other(a) | 15 |  | (148 | ) | 104 |  | 53 |  | 31 |
Eliminations(b) | (80 | ) | (2 | ) | — |  | — |  | — |
NBCUniversal | 8,313 |  | 2,160 |  | 553 |  | 461 |  | 166 |
Corporate and Other(c) | 255 |  | (392 | ) | 3 |  | 23 |  | 17 |
Eliminations(b) | (543 | ) | 11 |  | — |  | — |  | — |
Comcast Consolidated | $ | 21,735 |  | $ | 7,417 |  | $ | 2,603 |  | $ | 2,250 |  | $ | 511 |
| Three Months Ended June 30, 2017
(in millions) | Revenue | Adjusted EBITDA(d) | Depreciation and Amortization | Capital Expenditures | Cash Paid for Intangible Assets
Cable Communications | $ | 13,257 |  | $ | 5,293 |  | $ | 1,967 |  | $ | 1,956 |  | $ | 291 |
NBCUniversal |  |  |  |  |
Cable Networks | 2,696 |  | 1,055 |  | 181 |  | 8 |  | 4 |
Broadcast Television | 2,241 |  | 416 |  | 31 |  | 30 |  | 4 |
Filmed Entertainment | 2,142 |  | 287 |  | 25 |  | 19 |  | 6 |
Theme Parks | 1,314 |  | 551 |  | 186 |  | 243 |  | 26 |
Headquarters and Other(a) | 9 |  | (235 | ) | 97 |  | 38 |  | 33 |
Eliminations(b) | (84 | ) | — |  | — |  | — |  | — |
NBCUniversal | 8,318 |  | 2,074 |  | 520 |  | 338 |  | 73 |
Corporate and Other(c) | 205 |  | (302 | ) | 20 |  | 33 |  | 22 |
Eliminations(b) | (494 | ) | 10 |  | — |  | — |  | — |
Comcast Consolidated | $ | 21,286 |  | $ | 7,075 |  | $ | 2,507 |  | $ | 2,327 |  | $ | 386 |
| Six Months Ended June 30, 2018
(in millions) | Revenue | Adjusted EBITDA(d) | Depreciation and Amortization | Capital Expenditures | Cash Paid for Intangible Assets
Cable Communications | $ | 27,228 |  | $ | 11,053 |  | $ | 4,100 |  | $ | 3,454 |  | $ | 597 |
NBCUniversal |  |  |  |  |
Cable Networks(e) | 6,110 |  | 2,454 |  | 368 |  | 11 |  | 9 |
Broadcast Television(e) | 5,888 |  | 924 |  | 74 |  | 62 |  | 75 |
Filmed Entertainment | 3,357 |  | 341 |  | 91 |  | 15 |  | 14 |
Theme Parks | 2,642 |  | 1,064 |  | 322 |  | 542 |  | 135 |
Headquarters and Other(a) | 29 |  | (336 | ) | 208 |  | 100 |  | 63 |
Eliminations(b)(e) | (183 | ) | (2 | ) | — |  | — |  | — |
NBCUniversal | 17,843 |  | 4,445 |  | 1,063 |  | 730 |  | 296 |
Corporate and Other(c) | 646 |  | (789 | ) | 39 |  | 39 |  | 37 |
Eliminations(b)(e) | (1,191 | ) | (48 | ) | — |  | — |  | — |
Comcast Consolidated | $ | 44,526 |  | $ | 14,661 |  | $ | 5,202 |  | $ | 4,223 |  | $ | 930 |
| Six Months Ended June 30, 2017
(in millions) | Revenue | Adjusted EBITDA(d) | Depreciation and Amortization | Capital Expenditures | Cash Paid for Intangible Assets
Cable Communications | $ | 26,307 |  | $ | 10,467 |  | $ | 3,913 |  | $ | 3,737 |  | $ | 613 |
NBCUniversal |  |  |  |  |
Cable Networks | 5,336 |  | 2,170 |  | 395 |  | 10 |  | 7 |
Broadcast Television | 4,449 |  | 738 |  | 63 |  | 59 |  | 7 |
Filmed Entertainment | 4,109 |  | 658 |  | 47 |  | 29 |  | 11 |
Theme Parks | 2,432 |  | 948 |  | 328 |  | 472 |  | 39 |
Headquarters and Other(a) | 17 |  | (420 | ) | 195 |  | 53 |  | 64 |
Eliminations(b) | (172 | ) | (1 | ) | — |  | — |  | — |
NBCUniversal | 16,171 |  | 4,093 |  | 1,028 |  | 623 |  | 128 |
Corporate and Other(c) | 413 |  | (496 | ) | 34 |  | 45 |  | 30 |
Eliminations(b) | (1,018 | ) | 21 |  | — |  | — |  | — |
Comcast Consolidated | $ | 41,873 |  | $ | 14,085 |  | $ | 4,975 |  | $ | 4,405 |  | $ | 771 |
(a) | NBCUniversal Headquarters and Other activities include costs associated with overhead, allocations, personnel costs and headquarter initiatives.
(b) | Included in Eliminations are transactions that our segments enter into with one another. The most common types of transactions are the following:
• | our Cable Networks segment generates revenue by selling programming to our Cable Communications segment, which represents a substantial majority of the revenue elimination amount
• | our Broadcast Television segment generates revenue from the fees received under retransmission consent agreements with our Cable Communications segment
• | our Cable Communications segment generates revenue by selling advertising and by selling the use of satellite feeds to our Cable Networks segment
• | our Cable Networks and Broadcast Television segments generate revenue by selling advertising to our Cable Communications segment
• | our Filmed Entertainment and Broadcast Television segments generate revenue by licensing content to our Cable Networks segment; for segment reporting, this revenue is recognized as the programming rights asset for the licensed content is amortized based on third party revenue
(c) | Corporate and Other activities include costs associated with overhead and personnel, revenue and expenses associated with other business development initiatives, including our wireless phone service, and the operations of Comcast Spectacor, which owns the Philadelphia Flyers and the Wells Fargo Center arena in Philadelphia, Pennsylvania.
(d) | We use Adjusted EBITDA as the measure of profit or loss for our operating segments. Adjusted EBITDA is defined as net income attributable to Comcast Corporation before net income (loss) attributable to noncontrolling interests and redeemable subsidiary preferred stock, income tax expense, investment and other income (loss), net, interest expense, depreciation and amortization expense, and other operating gains and losses (such as impairment charges related to fixed and intangible assets and gains or losses on the sale of long-lived assets), if any. From time to time we may exclude from Adjusted EBITDA the impact of certain events, gains, losses or other charges (such as significant legal settlements) that affect the period-to-period comparability of our operating performance. Our reconciliation of the aggregate amount of Adjusted EBITDA for our reportable segments to consolidated income before income taxes is presented in the table below.
| Three Months Ended June 30 |  | Six Months Ended June 30
(in millions) | 2018 |  | 2017 |  | 2018 |  | 2017
Adjusted EBITDA | $ | 7,417 |  |  | $ | 7,075 |  |  | $ | 14,661 |  |  | $ | 14,085 |
Depreciation | (2,021 | ) |  | (1,970 | ) |  | (4,032 | ) |  | (3,885 | )
Amortization | (582 | ) |  | (537 | ) |  | (1,170 | ) |  | (1,090 | )
Other operating gains | 200 |  |  | — |  |  | 200 |  |  | — |
Interest expense | (806 | ) |  | (758 | ) |  | (1,583 | ) |  | (1,513 | )
Investment and other income (loss), net | 77 |  |  | 99 |  |  | 203 |  |  | 229 |
Income before income taxes | $ | 4,285 |  |  | $ | 3,909 |  |  | $ | 8,279 |  |  | $ | 7,826 |
(e) | The revenue and operating costs and expenses associated with our broadcast of the 2018 PyeongChang Olympics were reported in our Cable Networks and Broadcast Television segments. The revenue and operating costs and expenses associated with our broadcast of the 2018 Super Bowl were reported in our Broadcast Television segment. Included in Eliminations are transactions relating to these events that our Broadcast Television and Cable Networks segments enter into with our other segments.
Reconciliation of Adjusted EBITDA from Segments to Consolidated | Our reconciliation of the aggregate amount of Adjusted EBITDA for our reportable segments to consolidated income before income taxes is presented in the table below.
| Three Months Ended June 30 |  | Six Months Ended June 30
(in millions) | 2018 |  | 2017 |  | 2018 |  | 2017
Adjusted EBITDA | $ | 7,417 |  |  | $ | 7,075 |  |  | $ | 14,661 |  |  | $ | 14,085 |
Depreciation | (2,021 | ) |  | (1,970 | ) |  | (4,032 | ) |  | (3,885 | )
Amortization | (582 | ) |  | (537 | ) |  | (1,170 | ) |  | (1,090 | )
Other operating gains | 200 |  |  | — |  |  | 200 |  |  | — |
Interest expense | (806 | ) |  | (758 | ) |  | (1,583 | ) |  | (1,513 | )
Investment and other income (loss), net | 77 |  |  | 99 |  |  | 203 |  |  | 229 |
Income before income taxes | $ | 4,285 |  |  | $ | 3,909 |  |  | $ | 8,279 |  |  | $ | 7,826 |
NBCUniversal Media LLC [Member] |
Segment Reporting Information [Line Items] |
Financial Data by Business Segment | We use Adjusted EBITDA to evaluate the profitability of our operating segments and the components of net income attributable to NBCUniversal excluded from Adjusted EBITDA are not separately evaluated. Our financial data by business segment is presented in the tables below.
| Three Months Ended June 30, 2018
(in millions) | Revenue | Adjusted EBITDA(c) | Depreciation and Amortization | Capital Expenditures | Cash Paid for Intangible Assets
Cable Networks | $ | 2,916 |  | $ | 1,186 |  | $ | 179 |  | $ | 8 |  | $ | 5 |
Broadcast Television | 2,391 |  | 417 |  | 40 |  | 32 |  | 3 |
Filmed Entertainment | 1,710 |  | 138 |  | 63 |  | 8 |  | 8 |
Theme Parks | 1,361 |  | 569 |  | 167 |  | 360 |  | 119 |
Headquarters and Other(a) | 15 |  | (148 | ) | 104 |  | 53 |  | 31 |
Eliminations(b) | (80 | ) | (2 | ) | — |  | — |  | — |
Total | $ | 8,313 |  | $ | 2,160 |  | $ | 553 |  | $ | 461 |  | $ | 166 |
| Three Months Ended June 30, 2017
(in millions) | Revenue | Adjusted EBITDA(c) | Depreciation and Amortization | Capital Expenditures | Cash Paid for Intangible Assets
Cable Networks | $ | 2,696 |  | $ | 1,055 |  | $ | 181 |  | $ | 8 |  | $ | 4 |
Broadcast Television | 2,241 |  | 416 |  | 31 |  | 30 |  | 4 |
Filmed Entertainment | 2,142 |  | 287 |  | 25 |  | 19 |  | 6 |
Theme Parks | 1,314 |  | 551 |  | 186 |  | 243 |  | 26 |
Headquarters and Other(a) | 9 |  | (235 | ) | 97 |  | 38 |  | 33 |
Eliminations(b) | (84 | ) | — |  | — |  | — |  | — |
Total | $ | 8,318 |  | $ | 2,074 |  | $ | 520 |  | $ | 338 |  | $ | 73 |
| Six Months Ended June 30, 2018
(in millions) | Revenue | Adjusted EBITDA(c) | Depreciation and Amortization | Capital Expenditures | Cash Paid for Intangible Assets
Cable Networks(d) | $ | 6,110 |  | $ | 2,454 |  | $ | 368 |  | $ | 11 |  | $ | 9 |
Broadcast Television(d) | 5,888 |  | 924 |  | 74 |  | 62 |  | 75 |
Filmed Entertainment | 3,357 |  | 341 |  | 91 |  | 15 |  | 14 |
Theme Parks | 2,642 |  | 1,064 |  | 322 |  | 542 |  | 135 |
Headquarters and Other(a) | 29 |  | (336 | ) | 208 |  | 100 |  | 63 |
Eliminations(b)(d) | (183 | ) | (2 | ) | — |  | — |  | — |
Total | $ | 17,843 |  | $ | 4,445 |  | $ | 1,063 |  | $ | 730 |  | $ | 296 |
| Six Months Ended June 30, 2017
(in millions) | Revenue | Adjusted EBITDA(c) | Depreciation and Amortization | Capital Expenditures | Cash Paid for Intangible Assets
Cable Networks | $ | 5,336 |  | $ | 2,170 |  | $ | 395 |  | $ | 10 |  | $ | 7 |
Broadcast Television | 4,449 |  | 738 |  | 63 |  | 59 |  | 7 |
Filmed Entertainment | 4,109 |  | 658 |  | 47 |  | 29 |  | 11 |
Theme Parks | 2,432 |  | 948 |  | 328 |  | 472 |  | 39 |
Headquarters and Other(a) | 17 |  | (420 | ) | 195 |  | 53 |  | 64 |
Eliminations(b) | (172 | ) | (1 | ) | — |  | — |  | — |
Total | $ | 16,171 |  | $ | 4,093 |  | $ | 1,028 |  | $ | 623 |  | $ | 128 |
(a) | Headquarters and Other activities include costs associated with overhead, allocations, personnel costs and headquarter initiatives.
(b) | Included in Eliminations are transactions that our segments enter into with one another, which consisted primarily of the licensing of film and television content from our Filmed Entertainment and Broadcast Television segments to our Cable Networks segment; for segment reporting, this revenue is recognized as the programming rights asset for the licensed content is amortized based on third party revenue.
(c) | We use Adjusted EBITDA as the measure of profit or loss for our operating segments. Adjusted EBITDA is defined as net income attributable to NBCUniversal before net income (loss) attributable to noncontrolling interests, income tax expense, investment and other income (loss), net, interest expense, depreciation and amortization expense, and other operating gains and losses (such as impairment charges related to fixed and intangible assets and gains or losses on the sale of long-lived assets), if any. From time to time we may exclude from Adjusted EBITDA the impact of certain events, gains, losses or other charges (such as significant legal settlements) that affect the period-to-period comparability of our operating performance. Our reconciliation of the aggregate amount of Adjusted EBITDA for our reportable segments to consolidated income before income taxes is presented in the table below.
| Three Months Ended June 30 |  | Six Months Ended June 30
(in millions) | 2018 |  | 2017 |  | 2018 |  | 2017
Adjusted EBITDA | $ | 2,160 |  |  | $ | 2,074 |  |  | $ | 4,445 |  |  | $ | 4,093 |
Depreciation | (258 | ) |  | (265 | ) |  | (500 | ) |  | (496 | )
Amortization | (295 | ) |  | (255 | ) |  | (563 | ) |  | (532 | )
Interest expense | (133 | ) |  | (149 | ) |  | (260 | ) |  | (292 | )
Investment and other income (loss), net | (168 | ) |  | (15 | ) |  | (172 | ) |  | (16 | )
Income before income taxes | $ | 1,306 |  |  | $ | 1,390 |  |  | $ | 2,950 |  |  | $ | 2,757 |
(d) | The revenue and operating costs and expenses associated with our broadcast of the 2018 PyeongChang Olympics were reported in our Cable Networks and Broadcast Television segments. The revenue and operating costs and expenses associated with our broadcast of the 2018 Super Bowl were reported in our Broadcast Television segment. Included in Eliminations are transactions relating to these events that our Broadcast Television and Cable Networks segments enter into with our other segments.
Reconciliation of Adjusted EBITDA from Segments to Consolidated | Our reconciliation of the aggregate amount of Adjusted EBITDA for our reportable segments to consolidated income before income taxes is presented in the table below.
| Three Months Ended June 30 |  | Six Months Ended June 30
(in millions) | 2018 |  | 2017 |  | 2018 |  | 2017
Adjusted EBITDA | $ | 2,160 |  |  | $ | 2,074 |  |  | $ | 4,445 |  |  | $ | 4,093 |
Depreciation | (258 | ) |  | (265 | ) |  | (500 | ) |  | (496 | )
Amortization | (295 | ) |  | (255 | ) |  | (563 | ) |  | (532 | )
Interest expense | (133 | ) |  | (149 | ) |  | (260 | ) |  | (292 | )
Investment and other income (loss), net | (168 | ) |  | (15 | ) |  | (172 | ) |  | (16 | )
Income before income taxes | $ | 1,306 |  |  | $ | 1,390 |  |  | $ | 2,950 |  |  | $ | 2,757 |

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- Definition Tabular disclosure of the profit or loss and total assets for each reportable segment. An entity discloses certain information on each reportable segment if the amounts (a) are included in the measure of segment profit or loss reviewed by the chief operating decision maker or (b) are otherwise regularly provided to the chief operating decision maker, even if not included in that measure of segment profit or loss. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 22 -URI http://asc.fasb.org/extlink&oid=115929826&loc=d3e8736-108599 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 25 -URI http://asc.fasb.org/extlink&oid=115929826&loc=d3e8813-108599 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=108376223&loc=d3e13816-109267 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 21 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=115929826&loc=d3e8721-108599 Reference 5: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 30 -URI http://asc.fasb.org/extlink&oid=115929826&loc=d3e8906-108599 + Details
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