CONSOLIDATED STATEMENTS OF EQUITY - USD ($) $ in Millions	Total	Total Shareholders’ Equity	Common Stock and Additional Paid-In Capital	Retained Earnings	Cumulative Translation Adjustment	Retirement Benefits Adjustments	Cumulative Unrealized Gain (Loss)  on Derivatives	Treasury Stock	Noncontrolling Interest
Beginning balance at Dec. 31, 2019	$ 2,263.2	$ 2,263.2	$ 761.3	$ 2,615.1	$ (94.4)	$ (25.8)	$ (7.1)	$ (985.9)	$ 0.0
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	377.8	377.8		377.8
Cumulative translation adjustment	107.8	107.8			107.8
Net change in retirement obligations, net of tax	1.4	1.4				1.4
Net change on derivatives designated as cash flow hedges (net of tax)	4.6	4.6					4.6
Issuance of shares of common stock from issuance of unvested shares, performance share units and exercise of stock options	44.6	44.6						44.6
Repurchase of common stock	(110.3)	(110.3)						(110.3)
Share-based compensation	14.8	14.8	14.8
Shares surrendered for tax withholding	(12.3)	(12.3)						(12.3)
Cash dividends declared	(151.4)	(151.4)		(151.4)
Contributions received from joint venture partner	0.1	0.0							0.1
Ending balance at Dec. 31, 2020	2,540.3	2,540.2	776.1	2,841.5	13.4	(24.4)	(2.5)	(1,063.9)	0.1
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	449.3	449.4		449.4					(0.1)
Cumulative translation adjustment	(75.6)	(75.6)			(75.6)
Net change in retirement obligations, net of tax	17.0	17.0				17.0
Net change on derivatives designated as cash flow hedges (net of tax)	2.5	2.5					2.5
Issuance of shares of common stock from issuance of unvested shares, performance share units and exercise of stock options	19.7	19.7						19.7
Share-based compensation	20.4	20.4	20.4
Shares surrendered for tax withholding	(6.1)	(6.1)						(6.1)
Cash dividends declared	(164.4)	(164.4)		(164.4)
Ending balance at Dec. 31, 2021	2,803.1	2,803.1	796.5	3,126.5	(62.2)	(7.4)	0.0	(1,050.3)	0.0
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	586.7	586.9		586.9					(0.2)
Cumulative translation adjustment	(74.9)	(74.9)			(74.9)
Net change in retirement obligations, net of tax	18.3	18.3				18.3
Net change on derivatives designated as cash flow hedges (net of tax)	0.0
Issuance of shares of common stock from issuance of unvested shares, performance share units and exercise of stock options	19.3	19.3						19.3
Repurchase of common stock	(148.1)	(148.1)						(148.1)
Share-based compensation	21.6	21.6	21.6
Shares surrendered for tax withholding	(5.2)	(5.2)						(5.2)
Cash dividends declared	(181.7)	(181.7)		(181.7)
Contributions received from joint venture partner	0.5								0.5
Ending balance at Dec. 31, 2022	$ 3,039.6	$ 3,039.3	$ 818.1	$ 3,531.7	$ (137.1)	$ 10.9	$ 0.0	$ (1,184.3)	$ 0.3