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GOODWILL AND OTHER INTANGIBLE ASSETS (Tables) | 9 Months Ended
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Sep. 30, 2022
Goodwill and Intangible Assets Disclosure [Abstract] |
Schedule of Changes in Carrying Amounts of Goodwill | The assignment of goodwill by business segment, and changes in the carrying amount of goodwill by business segment, were as follows:
(In millions) | Integrated Mission Systems |  | Space & Airborne Systems |  | Communication Systems |  | Aviation Systems(1) |  | Total
Balance at December 31, 2021 - As Reported | $ | 6,485 |  |  | $ | 5,202 |  |  | $ | 4,153 |  |  | $ | 2,349 |  |  | $ | 18,189 |
Reallocation of goodwill in segment reorganization(1) | 1,702 |  |  | 647 |  |  | — |  |  | (2,349) |  |  | — |
Balance at December 31, 2021 - After Reallocation | 8,187 |  |  | 5,849 |  |  | 4,153 |  |  | — |  |  | 18,189 |
Impairment of goodwill | (447) |  |  | — |  |  | (355) |  |  | — |  |  | (802) |
Currency translation adjustments | (48) |  |  | (77) |  |  | (2) |  |  | — |  |  | (127) |
Balance at September 30, 2022 | $ | 7,692 |  |  | $ | 5,772 |  |  | $ | 3,796 |  |  | $ | — |  |  | $ | 17,260 |
_______________ (1)As a result of our new organizational structure, effective January 1, 2022, streamlining our operations from four business segments to three business segments, we reallocated goodwill previously held by our former Aviation Systems segment to our remaining business segments as of January 1, 2021, the earliest period presented in these Notes. See additional information below and “Segment Reorganization” in. Note A — Significant Accounting Policies and Recent Accounting Standards in these Notes.

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