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Goodwill and Intangible Assets | 6 Months Ended
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Jul. 04, 2021
Goodwill and Intangible Assets Disclosure [Abstract] |
Goodwill and Intangible Assets | GOODWILL AND INTANGIBLE ASSETS Goodwill. The changes in the carrying amount of goodwill by reporting unit were as follows:
| Aerospace |  | Marine Systems |  | Combat Systems |  | Technologies |  | Total Goodwill
December 31, 2020 (a) | $ | 3,065 |  |  | $ | 297 |  |  | $ | 2,786 |  |  | $ | 13,905 |  |  | $ | 20,053 |
Acquisitions (b) | 27 |  |  | — |  |  | — |  |  | — |  |  | 27 |
Other (c) | (72) |  |  | — |  |  | 6 |  |  | 7 |  |  | (59) |
July 4, 2021 (a) | $ | 3,020 |  |  | $ | 297 |  |  | $ | 2,792 |  |  | $ | 13,912 |  |  | $ | 20,021 |
(a)Goodwill in the Technologies reporting unit was net of $1.8 billion of accumulated impairment losses. (b)Included adjustments during the purchase price allocation period. (c)Consisted primarily of adjustments for foreign currency translation. Intangible Assets. Intangible assets consisted of the following:
| Gross Carrying Amount (a) | Accumulated Amortization | Net Carrying Amount |  | Gross Carrying Amount (a) | Accumulated Amortization | Net Carrying Amount
| July 4, 2021 |  | December 31, 2020
Contract and program intangible assets (b) | $ | 3,406 |  | $ | (1,699) |  | $ | 1,707 |  |  | $ | 3,399 |  | $ | (1,600) |  | $ | 1,799 |
Trade names and trademarks | 498 |  | (229) |  | 269 |  |  | 516 |  | (229) |  | 287 |
Technology and software | 131 |  | (107) |  | 24 |  |  | 134 |  | (106) |  | 28 |
Other intangible assets | 86 |  | (83) |  | 3 |  |  | 161 |  | (158) |  | 3 |
Total intangible assets | $ | 4,121 |  | $ | (2,118) |  | $ | 2,003 |  |  | $ | 4,210 |  | $ | (2,093) |  | $ | 2,117 |
(a)Changes in gross carrying amounts consisted primarily of adjustments for write-offs of fully amortized intangible assets, acquired intangible assets and foreign currency translation. (b)Consisted of acquired backlog and probable follow-on work and associated customer relationships. Amortization expense is included in operating costs and expenses in the Consolidated Statement of Earnings. Amortization expense for intangible assets was $56 and $111 for the three- and six-month periods ended July 4, 2021, and $65 and $131 for the three- and six-month periods ended June 28, 2020, respectively.

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- Definition The entire disclosure for goodwill and intangible assets. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -URI http://asc.fasb.org/topic&trid=2144416 + Details
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