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Stock Repurchase Program - Additional Information (Detail) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	12 Months Ended		24 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2024	Jan. 31, 2023
Share Repurchase Program [Line Items]
Cumulative repurchases, shares	1.7	3.9	1.7
Cumulative repurchases, value	$ 199.4	$ 400.5	$ 199.4	$ 2,000.0
Common stock average price	$ 114.63	$ 102.47
January 2023 Repurchase Program [Member] | Common Stock [Member]
Share Repurchase Program [Line Items]
Cumulative repurchases, shares			5.6
Cumulative repurchases, value			$ 599.9
Common stock average price			$ 106.21

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

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Number of previously issued common shares repurchased by the issuing entity and held in treasury.

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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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