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Non-controlling Interests - Cash Flows (Details) - MXN ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018
Consolidated subsidiaries information |  |  |
Cash flows from operating activities | $ 33,160,919 | $ 27,269,083 | $ 33,714,496
Cash flows from investing activities | (15,919,697) | (17,004,808) | (23,898,235)
Cash flows from financing activities | (16,195,216) | (14,301,896) | (16,504,914)
Net increase (decrease) in cash and cash equivalents | 1,034,490 | (4,098,070) | $ (6,666,658)
Empresas Cablevision |  |  |
Consolidated subsidiaries information |  |  |
Cash flows from operating activities | 3,959,679 | 3,756,935 |
Cash flows from investing activities | (5,824,827) | (3,301,043) |
Cash flows from financing activities | 2,104,416 | (1,855,636) |
Net increase (decrease) in cash and cash equivalents | 239,268 | (1,399,744) |
Sky |  |  |
Consolidated subsidiaries information |  |  |
Cash flows from operating activities | 8,645,025 | 8,118,541 |
Cash flows from investing activities | (5,547,152) | (4,006,732) |
Cash flows from financing activities | (6,392,614) | (5,172,976) |
Net increase (decrease) in cash and cash equivalents | $ (3,294,741) | $ (1,061,167) |

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