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Cash Equivalents and Investments (Narrative) (Detail) - USD ($) $ in Millions	Sep. 30, 2025	Dec. 31, 2024
Cash and Cash Equivalents [Abstract]
Company owned life insurance (at contract value)	$ 50	$ 48

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- References

No definition available.

+ Details

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Namespace Prefix:	us-gaap_
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- Definition

Carrying amount as of the balance sheet date of amounts which could be received based on the terms of the insurance contract upon surrendering life policies owned by the entity.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 210
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(17))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1

+ Details

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