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Shareholders' Equity (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023	Dec. 31, 2023
Business Acquisition Equity Interests Issued Or Issuable [Line Items]
Number of shares authorized to be repurchased	11.0
Purchase of treasury stock	$ 60.7	$ 94.5
Treasury stock acquired, Shares,	0.8	1.5
Treasury Stock Acquired, Average Cost Per Share	$ 72.27	$ 65.07
Common stock reissued	2.4
Preferred stock, par value	$ 1	$ 1	$ 1

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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.

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Face amount or stated value per share of preferred stock nonredeemable or redeemable solely at the option of the issuer.

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Number of treasury shares or units reissued. Excludes reissuance of shares or units in treasury for award under share-based payment arrangement.

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The number of shares authorized to be repurchased by an entity's Board of Directors under a stock repurchase plan.

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Total cost of shares repurchased divided by the total number of shares repurchased.

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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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