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Goodwill and Intangible Assets
 9 Months Ended
Sep. 29, 2024
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:
AerospaceMarine SystemsCombat SystemsTechnologiesTotal
Goodwill
December 31, 2023 (a)
$3,199 $297 $2,812 $14,278 $20,586 
Acquisitions (b)7 — 39 156 202 
Other (c)(6)— (22)(3)(31)
September 29, 2024 (a)
$3,200 $297 $2,829 $14,431 $20,757 
(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 AmortizationNet Carrying AmountGross Carrying Amount (a)Accumulated AmortizationNet Carrying Amount
September 29, 2024December 31, 2023
Contract and program intangible assets (b)$3,295 $(1,960)$1,335 $3,256 $(1,868)$1,388 
Trade names and trademarks540 (302)238 542 (288)254 
Technology and software62 (52)10 65 (51)14 
Other intangible assets60 (60)— 64 (64)— 
Total intangible assets$3,957 $(2,374)$1,583 $3,927 $(2,271)$1,656 
(a)Changes in gross carrying amounts consisted primarily of adjustments for acquired and divested 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 $45 and $134 for the three- and nine-month periods ended September 29, 2024, and $47 and $147 for the three- and nine-month periods ended October 1, 2023, respectively.