Goodwill (Narrative) (Details) $ in Millions |
12 Months Ended | ||
|---|---|---|---|
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Dec. 31, 2024
USD ($)
reporting_unit
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Dec. 31, 2023
USD ($)
reporting_unit
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Oct. 31, 2023 |
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| Goodwill [Line Items] | |||
| Number of Reporting Units | reporting_unit | 3 | 3 | |
| Accumulated goodwill impairment losses | $ 2,755 | $ 2,755 | |
| Ingalls [Member] | Operating Segments [Member] | |||
| Goodwill [Line Items] | |||
| Accumulated goodwill impairment losses | 1,568 | 1,568 | |
| Newport News Shipbuilding [Member] | Operating Segments [Member] | |||
| Goodwill [Line Items] | |||
| Accumulated goodwill impairment losses | $ 1,187 | $ 1,187 | |
| Minimum | |||
| Goodwill [Line Items] | |||
| Minimum excess of fair value over carrying value | 10.00% | ||
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- Definition Amount of accumulated impairment loss for asset representing future economic benefit arising from other asset acquired in business combination or from joint venture formation or both, that is not individually identified and separately recognized. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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- Definition Number of reporting units tested for impairment of goodwill. A reporting unit is an operating segment or one level below an operating segment. No definition available.
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- Definition Percentage of fair value of reporting unit in excess of carrying amount. No definition available.
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