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STOCKHOLDERS' EQUITY - Dividends (Narrative) (Details) - USD ($) $ / shares in Units, $ in Millions | 3 Months Ended | 9 Months Ended
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Sep. 26, 2021 | Jun. 27, 2021 | Sep. 27, 2020 | Sep. 26, 2021 | Sep. 27, 2020
Equity [Abstract] |  |  |  |  |
Cash dividends paid and unpaid, amount | $ 775 |  | $ 730 | $ 2,954 | $ 2,757
Cash dividends declared (in dollars per share) | $ 2.80 | $ 2.60 | $ 2.60 | $ 10.60 | $ 9.80
Common stock dividends per share declared, period increase (in dollars per share) | $ 0.20 |  |  |  |

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