Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Millions	3 Months Ended		6 Months Ended		12 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023	Dec. 31, 2023
Operating Activities
Net Income	$ 102.0	$ 129.5	$ 212.6	$ 255.2
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	54.2	51.2	109.5	96.8
Impairment charges			1.9	28.3
(Gain) loss on sale of assets			(1.1)	1.2
Gain on divestitures			0.0	(3.6)
Deferred income tax (benefit) provision			(5.2)	2.8
Stock-based compensation expense			11.5	17.1
Pension and other postretirement expense			3.3	1.1
Pension and other postretirement benefit contributions and payments			(16.1)	(7.2)
Changes in operating assets and liabilities:
Accounts receivable			(131.2)	(87.4)
Unbilled receivables			(3.8)	(17.7)
Inventories			(20.6)	15.3
Accounts payable, trade			13.8	(14.9)
Other accrued expenses			(20.5)	(29.1)
Income taxes			31.7	(32.3)
Other, net			(11.9)	(3.0)
Net Cash Provided by Operating Activities			173.9	222.6
Investing Activities
Capital expenditures			(81.4)	(91.3)
Acquisitions, net of cash acquired			(0.4)	(324.6)
Proceeds from disposal of property, plant and equipment			1.5	0.3
Proceeds from divestitures, net of cash divested			0.3	4.5
Investments in short-term marketable securities, net			20.8	(0.8)
Other, net			(0.2)	(0.1)
Net Cash Used in Investing Activities			(59.4)	(412.0)
Financing Activities
Cash dividends paid to shareholders			(48.4)	(47.4)
Purchase of treasury shares			(29.7)	(154.5)
Proceeds from exercise of stock options			5.4	17.2
Payments related to tax withholding for stock-based compensation			(10.0)	(15.1)
Borrowings on accounts receivable facility			55.0	29.0
Payments on accounts receivable facility			(122.0)	(29.0)
Proceeds from long-term debt			1,306.5	768.9
Payments on long-term debt			(1,221.3)	(643.5)
Deferred financing costs			(5.5)	0.0
Short-term debt activity, net			(213.1)	(1.4)
Proceeds from the sale of shares in Timken India Limited			232.3	284.8
Other			(1.2)	0.0
Net Cash (Used in) Provided by Financing Activities			(52.0)	209.0
Effect of exchange rate changes on cash			(10.8)	(8.0)
Increase in Cash, Cash Equivalents and Restricted Cash			51.7	11.6
Cash, cash equivalents and restricted cash at beginning of year			419.3	340.7	$ 340.7
Cash, Cash Equivalents and Restricted Cash at End of Period	$ 471.0	$ 352.3	$ 471.0	$ 352.3	$ 419.3