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GOODWILL - Changes in Carrying Amount of Goodwill (Details) |  | 12 Months Ended
--- | --- | ---
Jun. 29, 2019 USD ($) | Dec. 31, 2021 USD ($) divestiture | Jan. 01, 2021 USD ($) divestiture | Jun. 28, 2019 business
Goodwill [Roll Forward] |  |  |  |
Beginning Balance |  | $ 18,876,000,000 | $ 20,001,000,000 |
Goodwill decrease from divestitures |  | (564,000,000) | (541,000,000) |
Impairment of goodwill | $ 0 | (62,000,000) | (480,000,000) |
Currency translation adjustments |  | (61,000,000) | (14,000,000) |
Other (including adjustments to previously estimated fair value of assets acquire and liabilities assumed) |  |  | (90,000,000) |
Ending Balance |  | $ 18,189,000,000 | $ 18,876,000,000 |
Number of business divested | business |  |  |  | 0
Disposal Group, Disposed of by Sale, Not Discontinued Operations |  |  |  |
Goodwill [Roll Forward] |  |  |  |
Number of business divested | divestiture |  | 6 | 3 |
Applied Kilovolts And Analytical Instrumentation, Airport Security And Automation And EOTech Businesses | Disposal Group, Disposed of by Sale, Not Discontinued Operations |  |  |  |
Goodwill [Roll Forward] |  |  |  |
Number of business divested | divestiture |  | 6 | 3 |
CPS business | Disposal Group, Disposed of by Sale, Not Discontinued Operations |  |  |  |
Goodwill [Roll Forward] |  |  |  |
Impairment of goodwill |  | $ (62,000,000) |  |
Integrated Mission Systems |  |  |  |
Goodwill [Roll Forward] |  |  |  |
Beginning Balance |  | 6,499,000,000 | $ 5,768,000,000 |
Goodwill decrease from divestitures |  | 0 | 0 |
Impairment of goodwill |  | 0 | 0 |
Currency translation adjustments |  | (14,000,000) | (10,000,000) |
Other (including adjustments to previously estimated fair value of assets acquire and liabilities assumed) |  |  | 741,000,000 |
Ending Balance |  | 6,485,000,000 | 6,499,000,000 |
Space & Airborne Systems |  |  |  |
Goodwill [Roll Forward] |  |  |  |
Beginning Balance |  | 5,232,000,000 | 5,131,000,000 |
Goodwill decrease from divestitures |  | 0 | (2,000,000) |
Impairment of goodwill |  | 0 | (5,000,000) |
Currency translation adjustments |  | (30,000,000) | (4,000,000) |
Other (including adjustments to previously estimated fair value of assets acquire and liabilities assumed) |  |  | 112,000,000 |
Ending Balance |  | 5,202,000,000 | 5,232,000,000 |
Communication Systems |  |  |  |
Goodwill [Roll Forward] |  |  |  |
Beginning Balance |  | 4,153,000,000 | 4,243,000,000 |
Goodwill decrease from divestitures |  | 0 | (9,000,000) |
Impairment of goodwill |  | 0 | 0 |
Currency translation adjustments |  | 0 | 1,000,000 |
Other (including adjustments to previously estimated fair value of assets acquire and liabilities assumed) |  |  | (82,000,000) |
Ending Balance |  | 4,153,000,000 | 4,153,000,000 |
Aviation Systems |  |  |  |
Goodwill [Roll Forward] |  |  |  |
Beginning Balance |  | 2,992,000,000 | 4,859,000,000 |
Goodwill decrease from divestitures |  | (564,000,000) | (530,000,000) |
Impairment of goodwill |  | (62,000,000) | (475,000,000) |
Currency translation adjustments |  | (17,000,000) | (1,000,000) |
Other (including adjustments to previously estimated fair value of assets acquire and liabilities assumed) |  |  | (861,000,000) |
Ending Balance |  | $ 2,349,000,000 | $ 2,992,000,000 |

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- Definition Amount of increase (decrease) from adjustments after acquisition date under purchase accounting of an asset representing the future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 10 -Section 25 -Paragraph 16 -URI http://asc.fasb.org/extlink&oid=123586518&loc=d3e961-128460 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (g) -URI http://asc.fasb.org/extlink&oid=121556970&loc=d3e13816-109267 + Details
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