Shareholders' Equity (Narrative) (Details) - USD ($) $ / shares in Units, $ in Millions			3 Months Ended
	May 31, 2025	Jul. 29, 2016	Mar. 31, 2025	Mar. 31, 2024
Equity Class Of Treasury Stock [Line Items]
Shares repurchase program, repurchased cost			$ 22.2	$ 15.2
O 2025 Q1 Dividends [Member]
Equity Class Of Treasury Stock [Line Items]
Quarterly dividends declared			$ 0.308
Dividends payable, date to be paid, year and month			2025-03
O 2025 Q2 Dividends [Member] | Forecast [Member]
Equity Class Of Treasury Stock [Line Items]
Quarterly dividends declared	$ 0.308
Dividends payable, date to be paid, year and month	2025-05
Common Stock [Member]
Equity Class Of Treasury Stock [Line Items]
Shares repurchase program, expiration date		Dec. 31, 2026
Stock repurchase program, remaining authorized repurchase amount			$ 639.8
Shares repurchase program, shares repurchased			(149,876)	(142,582)
Common Stock [Member] | Share Repurchase Program Excluding Accelerated Share Repurchase [Member]
Equity Class Of Treasury Stock [Line Items]
Shares repurchase program, shares repurchased			100,000
Shares repurchase program, repurchased cost			$ 22.0
Shares repurchase program, average price per share			$ 146.79
Common Stock [Member] | Share Repurchase Program Including Accelerated Share Repurchase [Member]
Equity Class Of Treasury Stock [Line Items]
Shares repurchase program, shares repurchased			14,800,000
Shares repurchase program, repurchased cost			$ 1,060.2
Shares repurchase program, average price per share			$ 71.66
Common Stock [Member] | July 2018 Program [Member]
Equity Class Of Treasury Stock [Line Items]
Shares repurchase program, authorized amount		$ 150.0
Common Stock [Member] | December 2026 Program [Member]
Equity Class Of Treasury Stock [Line Items]
Shares repurchase program, authorized amount		$ 1,700.0