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Share Owners' Equity -Authorization of Common Stock (Details) - $ / shares	Sep. 30, 2023	Dec. 31, 2022	Sep. 30, 2022
Authorization of common stock
Shares of common stock authorized	250,000,000	250,000,000	250,000,000
Common stock, par value (in dollars per share)	$ 0.01	$ 0.01	$ 0.01
Shares of common stock issued (including treasury shares)	185,632,000	185,568,000	186,180,000
Treasury shares	30,905,000	30,880,000	31,042,000

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Face amount or stated value per share of common stock.

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-Topic 210
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(29))
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The maximum number of common shares permitted to be issued by an entity's charter and bylaws.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 946
-SubTopic 210
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.6-04(16)(a))
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Total number of common shares of an entity that have been sold or granted to shareholders (includes common shares that were issued, repurchased and remain in the treasury). These shares represent capital invested by the firm's shareholders and owners, and may be all or only a portion of the number of shares authorized. Shares issued include shares outstanding and shares held in the treasury.

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-Topic 210
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
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-Publisher FASB
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Number of previously issued common shares repurchased by the issuing entity and held in treasury.

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-Name Accounting Standards Codification
-Topic 505
-SubTopic 30
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