Treasury Stock Transactions (Details) - USD ($) shares in Millions, $ in Millions		1 Months Ended		3 Months Ended			8 Months Ended	9 Months Ended
		Feb. 28, 2025	Nov. 30, 2024	Mar. 31, 2026	Mar. 31, 2025		Mar. 31, 2025	Dec. 31, 2025	Nov. 01, 2024
Equity, Class of Treasury Stock
Cost of Shares Repurchased	[1]			$ 402.4	$ 202.6
Number of Treasury Shares Repurchased				5.4	3.3	[2]
Shares repurchased cost Commissions				$ 0.1	$ 0.5
Share Repurchase Program, Excise Tax				3.7	$ 2.1
November 2024 Accelerated Share Repurchase
Equity, Class of Treasury Stock
Number of Treasury Shares Repurchased		0.7	3.8
Accelerated Share Repurchases, Settlement (Payment) or Receipt									$ 321.0
Repurchase Program Authorized in December 2025
Equity, Class of Treasury Stock
Authorized Amount of Treasury Share Repurchases Under Stock Repurchase Program				1,000.0
Cost of Shares Repurchased				398.6
Remaining Amount of Treasury Share Repurchases Authorized Under Stock Repurchase Program				$ 601.4
Repurchase Program Authorized in February 2025
Equity, Class of Treasury Stock
Expiration Date of Share Repurchase Program	[3]			Dec. 31, 2025
Authorized Amount of Treasury Share Repurchases Under Stock Repurchase Program	[3]			$ 1,000.0
Cost of Shares Repurchased	[3]							$ 800.0
Remaining Amount of Treasury Share Repurchases Authorized Under Stock Repurchase Program	[3]			$ 0.0
Repurchase Program Authorized in July 2024
Equity, Class of Treasury Stock
Expiration Date of Share Repurchase Program	[4]			Mar. 31, 2025
Authorized Amount of Treasury Share Repurchases Under Stock Repurchase Program	[4]			$ 1,000.0
Cost of Shares Repurchased	[4]						$ 706.8
Remaining Amount of Treasury Share Repurchases Authorized Under Stock Repurchase Program	[4]			$ 0.0

[1] 2Includes $0.1 million and $0.5 million of commissions for the three months ended March 31, 2026 and 2025, respectively. Also includes $3.7 million and $2.1 million of excise taxes for the three months ended March 31, 2026 and 2025, respectively.

[2] 1For the three months ended March 31, 2025, includes 0.7 million shares related to the settlement of the November 2024 accelerated share repurchase agreement (ASR) which occurred in February 2025.

[3] 1Concurrent with the announcement of the December 2025 repurchase program, we also announced the termination of the February 2025 program as of December 31, 2025, and any unused amounts under that program expired as of that date.

[4] 2Concurrent with the announcement of the February 2025 repurchase program, we also announced the termination of the July 2024 program as of March 31, 2025, and any unused amounts under that program expired as of that date.