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Note 7 - Stockholders' Equity (Details Textual) - USD ($) $ / shares in Units, $ in Millions		3 Months Ended			9 Months Ended
	Jun. 17, 2025	Sep. 30, 2025	Jun. 30, 2025	Mar. 31, 2025	Sep. 30, 2025	Jun. 08, 2025
Common Stock, Dividends, Per Share, Declared (in dollars per share)		$ 0.1	$ 0.1	$ 0.1
Share Repurchase Program Authorized June 8, 2025 [Member]
Share Repurchase Program, Authorized, Amount						$ 1,000
Treasury Stock, Value, Acquired, Cost Method		$ 187			$ 193
Treasury Stock, Shares, Acquired (in shares)		9,519,423			9,840,201
Share Repurchase Program, Remaining Authorized, Amount		$ 556			$ 556
Share Repurchase Program Authorized June 8, 2025 [Member] | Icahn Group [Member]
Treasury Stock, Value, Acquired, Cost Method	$ 251
Treasury Stock, Shares, Acquired (in shares)	14,286,505

X

- Definition

Amount authorized for purchase of share under share repurchase plan. Includes, but is not limited to, repurchase of stock and unit of ownership.

+ References

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-SubTopic 30
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-Section 50
-Paragraph 4
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Aggregate dividends declared during the period for each share of common stock outstanding.

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+ References

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Equity impact of the cost of common and preferred stock that were repurchased during the period. Recorded using the cost method.

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