v3.7.0.1

Condensed Consolidating Financial Information (Condensed Consolidating Statement of Cash Flows) (Details) - USD ($) $ in Millions | 3 Months Ended
--- | ---
Mar. 31, 2017 | Mar. 31, 2016
Net Cash Provided by (Used in) Operating Activities [Abstract] |  |
Net Cash Provided by (Used in) Operating Activities | $ 5,656 | $ 5,399
Investing Activities |  |
Net transactions with affiliates | 0 | 0
Capital expenditures | (2,078) | (1,885)
Cash paid for intangible assets | (416) | (378)
Acquisitions and construction of real estate properties | (130) | (140)
Acquisitions, net of cash acquired | (216) | (24)
Proceeds from sales of investments | 51 | 110
Purchases of investments | (1,062) | (448)
Other | 57 | 56
Net Cash Provided by (Used in) Investing Activities | (3,794) | (2,709)
Financing Activities |  |
Proceeds from (repayments of) short-term borrowings, net | (1,893) | (538)
Proceeds from borrowings | 3,500 | 3,323
Repurchases and repayments of debt | (1,059) | (48)
Repurchases of common stock under repurchase program and employee plans | (996) | (1,427)
Dividends paid | (657) | (611)
Issuances of common stock | 0 | 12
Distributions to noncontrolling interests and dividends for redeemable subsidiary preferred stock | (72) | (77)
Other | 36 | 9
Net Cash Provided by (Used in) Financing Activities | (1,141) | 643
Cash and Cash Equivalents, Period Increase (Decrease) | 721 | 3,333
Cash and cash equivalents, beginning of period | 3,301 | 2,295
Cash and cash equivalents, end of period | 4,022 | 5,628
Elimination and Consolidation Adjustments [Member] |  |
Net Cash Provided by (Used in) Operating Activities [Abstract] |  |
Net Cash Provided by (Used in) Operating Activities | 0 | 0
Investing Activities |  |
Net transactions with affiliates | 0 | 0
Capital expenditures | 0 | 0
Cash paid for intangible assets | 0 | 0
Acquisitions and construction of real estate properties | 0 | 0
Acquisitions, net of cash acquired | 0 | 0
Proceeds from sales of investments | 0 | 0
Purchases of investments | 0 | 0
Other | 0 | 0
Net Cash Provided by (Used in) Investing Activities | 0 | 0
Financing Activities |  |
Proceeds from (repayments of) short-term borrowings, net | 0 | 0
Proceeds from borrowings | 0 | 0
Repurchases and repayments of debt | 0 | 0
Repurchases of common stock under repurchase program and employee plans | 0 | 0
Dividends paid | 0 | 0
Issuances of common stock | 0 | 0
Distributions to noncontrolling interests and dividends for redeemable subsidiary preferred stock | 0 | 0
Other | 0 | 0
Net Cash Provided by (Used in) Financing Activities | 0 | 0
Cash and Cash Equivalents, Period Increase (Decrease) | 0 | 0
Cash and cash equivalents, beginning of period | 0 | 0
Cash and cash equivalents, end of period | 0 | 0
Comcast Parent [Member] |  |
Net Cash Provided by (Used in) Operating Activities [Abstract] |  |
Net Cash Provided by (Used in) Operating Activities | (453) | (201)
Investing Activities |  |
Net transactions with affiliates | 1,385 | (679)
Capital expenditures | (1) | (3)
Cash paid for intangible assets | 0 | 0
Acquisitions and construction of real estate properties | (69) | 0
Acquisitions, net of cash acquired | 0 | 0
Proceeds from sales of investments | 0 | 0
Purchases of investments | (9) | (7)
Other | 55 | 7
Net Cash Provided by (Used in) Investing Activities | 1,361 | (682)
Financing Activities |  |
Proceeds from (repayments of) short-term borrowings, net | (1,739) | (400)
Proceeds from borrowings | 3,500 | 3,323
Repurchases and repayments of debt | (1,000) | 0
Repurchases of common stock under repurchase program and employee plans | (996) | (1,427)
Dividends paid | (657) | (611)
Issuances of common stock | 0 | 12
Distributions to noncontrolling interests and dividends for redeemable subsidiary preferred stock | 0 | 0
Other | (16) | (14)
Net Cash Provided by (Used in) Financing Activities | (908) | 883
Cash and Cash Equivalents, Period Increase (Decrease) | 0 | 0
Cash and cash equivalents, beginning of period | 0 | 0
Cash and cash equivalents, end of period | 0 | 0
Comcast Holdings [Member] |  |
Net Cash Provided by (Used in) Operating Activities [Abstract] |  |
Net Cash Provided by (Used in) Operating Activities | (10) | 0
Investing Activities |  |
Net transactions with affiliates | 10 | 0
Capital expenditures | 0 | 0
Cash paid for intangible assets | 0 | 0
Acquisitions and construction of real estate properties | 0 | 0
Acquisitions, net of cash acquired | 0 | 0
Proceeds from sales of investments | 0 | 0
Purchases of investments | 0 | 0
Other | 0 | 0
Net Cash Provided by (Used in) Investing Activities | 10 | 0
Financing Activities |  |
Proceeds from (repayments of) short-term borrowings, net | 0 | 0
Proceeds from borrowings | 0 | 0
Repurchases and repayments of debt | 0 | 0
Repurchases of common stock under repurchase program and employee plans | 0 | 0
Dividends paid | 0 | 0
Issuances of common stock | 0 | 0
Distributions to noncontrolling interests and dividends for redeemable subsidiary preferred stock | 0 | 0
Other | 0 | 0
Net Cash Provided by (Used in) Financing Activities | 0 | 0
Cash and Cash Equivalents, Period Increase (Decrease) | 0 | 0
Cash and cash equivalents, beginning of period | 0 | 0
Cash and cash equivalents, end of period | 0 | 0
CCCL Parent [Member] |  |
Net Cash Provided by (Used in) Operating Activities [Abstract] |  |
Net Cash Provided by (Used in) Operating Activities | (168) | 78
Investing Activities |  |
Net transactions with affiliates | 168 | (78)
Capital expenditures | 0 | 0
Cash paid for intangible assets | 0 | 0
Acquisitions and construction of real estate properties | 0 | 0
Acquisitions, net of cash acquired | 0 | 0
Proceeds from sales of investments | 0 | 0
Purchases of investments | 0 | 0
Other | 0 | 0
Net Cash Provided by (Used in) Investing Activities | 168 | (78)
Financing Activities |  |
Proceeds from (repayments of) short-term borrowings, net | 0 | 0
Proceeds from borrowings | 0 | 0
Repurchases and repayments of debt | 0 | 0
Repurchases of common stock under repurchase program and employee plans | 0 | 0
Dividends paid | 0 | 0
Issuances of common stock | 0 | 0
Distributions to noncontrolling interests and dividends for redeemable subsidiary preferred stock | 0 | 0
Other | 0 | 0
Net Cash Provided by (Used in) Financing Activities | 0 | 0
Cash and Cash Equivalents, Period Increase (Decrease) | 0 | 0
Cash and cash equivalents, beginning of period | 0 | 0
Cash and cash equivalents, end of period | 0 | 0
NBCUniversal Media Parent [Member] |  |
Net Cash Provided by (Used in) Operating Activities [Abstract] |  |
Net Cash Provided by (Used in) Operating Activities | (330) | (391)
Investing Activities |  |
Net transactions with affiliates | 115 | 63
Capital expenditures | 0 | 0
Cash paid for intangible assets | 0 | 0
Acquisitions and construction of real estate properties | 0 | 0
Acquisitions, net of cash acquired | 0 | 0
Proceeds from sales of investments | 10 | 101
Purchases of investments | (4) | 0
Other | 0 | (5)
Net Cash Provided by (Used in) Investing Activities | 121 | 159
Financing Activities |  |
Proceeds from (repayments of) short-term borrowings, net | 0 | 0
Proceeds from borrowings | 0 | 0
Repurchases and repayments of debt | (3) | (4)
Repurchases of common stock under repurchase program and employee plans | 0 | 0
Dividends paid | 0 | 0
Issuances of common stock | 0 | 0
Distributions to noncontrolling interests and dividends for redeemable subsidiary preferred stock | 0 | 0
Other | 0 | 0
Net Cash Provided by (Used in) Financing Activities | (3) | (4)
Cash and Cash Equivalents, Period Increase (Decrease) | (212) | (236)
Cash and cash equivalents, beginning of period | 482 | 414
Cash and cash equivalents, end of period | 270 | 178
Comcast Non-Guarantor Subsidiaries [Member] |  |
Net Cash Provided by (Used in) Operating Activities [Abstract] |  |
Net Cash Provided by (Used in) Operating Activities | 6,617 | 5,913
Investing Activities |  |
Net transactions with affiliates | (1,678) | 694
Capital expenditures | (2,077) | (1,882)
Cash paid for intangible assets | (416) | (378)
Acquisitions and construction of real estate properties | (61) | (140)
Acquisitions, net of cash acquired | (216) | (24)
Proceeds from sales of investments | 41 | 9
Purchases of investments | (1,049) | (441)
Other | 2 | 54
Net Cash Provided by (Used in) Investing Activities | (5,454) | (2,108)
Financing Activities |  |
Proceeds from (repayments of) short-term borrowings, net | (154) | (138)
Proceeds from borrowings | 0 | 0
Repurchases and repayments of debt | (56) | (44)
Repurchases of common stock under repurchase program and employee plans | 0 | 0
Dividends paid | 0 | 0
Issuances of common stock | 0 | 0
Distributions to noncontrolling interests and dividends for redeemable subsidiary preferred stock | (72) | (77)
Other | 52 | 23
Net Cash Provided by (Used in) Financing Activities | (230) | (236)
Cash and Cash Equivalents, Period Increase (Decrease) | 933 | 3,569
Cash and cash equivalents, beginning of period | 2,819 | 1,881
Cash and cash equivalents, end of period | $ 3,752 | $ 5,450

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