Condensed Consolidated Statements of Cash Flows - USD ($) $ in Millions	3 Months Ended				6 Months Ended		12 Months Ended
	Jun. 30, 2025	Mar. 31, 2025	Jun. 30, 2024	Mar. 31, 2024	Jun. 30, 2025	Jun. 30, 2024	Dec. 31, 2024
Operating activities
Net income	$ 148.5	$ 154.9	$ 186.1	$ 133.3	$ 303.4	$ 319.4
Loss from discontinued operations, net of tax					0.0	0.2
Adjustments to reconcile net income from continuing operations to net cash provided by (used for) operating activities
Equity income of unconsolidated subsidiaries					(0.4)	(1.1)
Depreciation	14.6		15.5		29.4	30.4
Amortization	14.3		13.4		28.5	26.9
Deferred income taxes					18.5	12.6
Loss on sale of business	26.3		0.0		26.3	0.0
Share-based compensation	8.6		8.4		21.2	16.3
Asset impairment and write-offs					47.0	0.8
Changes in assets and liabilities, net of effects of business acquisitions
Accounts receivable					33.4	(10.7)
Inventories					(9.9)	23.5
Other current assets					(27.3)	(4.0)
Accounts payable					39.4	19.4
Employee compensation and benefits					(18.9)	(19.4)
Other current liabilities					66.6	6.6
Other non-current assets and liabilities					10.5	10.9
Net cash provided by operating activities of continuing operations					567.7	431.8
Net cash used for operating activities of discontinued operations					0.0	(0.2)
Net cash provided by operating activities					567.7	431.6
Investing activities
Capital expenditures					(27.7)	(36.3)
Purchase of investments					(18.0)	0.0
Proceeds from sale of property and equipment					0.1	0.0
Other					0.2	(0.5)
Net cash used for investing activities					(45.4)	(36.8)
Financing activities
Net (repayments) receipts of short-term borrowings					(9.2)	3.3
Net borrowings of revolving long-term debt					9.9	0.0
Repayments of long-term debt					(250.0)	(237.5)
Debt issuance costs					(2.1)	0.0
Shares issued to employees, net of shares withheld					(10.6)	9.3
Repurchases of ordinary shares					(125.0)	(50.0)
Dividends paid					(82.4)	(76.2)
Net cash used for financing activities					(469.4)	(351.1)
Effect of exchange rate changes on cash and cash equivalents					(28.6)	0.3
Change in cash and cash equivalents					24.3	44.0
Cash and cash equivalents, beginning of period		$ 118.7		$ 170.3	118.7	170.3	$ 170.3
Cash and cash equivalents, end of period	$ 143.0		$ 214.3		$ 143.0	$ 214.3	$ 118.7