Held for Sale, Acquisitions and Divestitures (Altra - Fair Values of Assets Acquired and Liabilities Assumed) (Details) - USD ($) $ in Millions	Dec. 31, 2023	Mar. 31, 2023	Dec. 31, 2022	Jan. 01, 2022
Business Acquisition [Line Items]
Goodwill	$ 6,553.1		$ 4,018.8	$ 4,039.2
Altra Merger Agreement
Business Acquisition [Line Items]
Cash and Cash Equivalents	259.1
Trade Receivables	258.1
Inventories	387.5
Prepaid Expenses and Other Current Assets	32.4
Property, Plant and Equipment	403.0
Intangible Assets	2,142.0
Deferred Income Tax Benefits	0.7
Operating Lease Assets	46.8
Other Noncurrent Assets	12.7
Accounts Payable	(183.3)
Accrued Compensation and Benefits	(66.0)
Other Accrued Expenses	(144.6)
Current Operating Lease Liabilities	(12.3)
Current Maturities of Long-Term Debt	(0.4)
Long-Term Debt	(25.3)
Deferred Income Taxes	(533.3)
Pension and Other Post Retirement Benefits	(19.8)
Noncurrent Operating Lease Liabilities	(29.0)
Other Noncurrent Liabilities	(8.3)
Total Identifiable Net Assets	2,520.0
Goodwill	2,614.6
Preliminary purchase price	5,134.6
Transaction costs	60.1
Altra Merger Agreement | As Originally Reported
Business Acquisition [Line Items]
Cash and Cash Equivalents		$ 259.1
Trade Receivables		258.1
Inventories		436.4
Prepaid Expenses and Other Current Assets		33.0
Property, Plant and Equipment		411.8
Intangible Assets		2,224.0
Deferred Income Tax Benefits		0.7
Operating Lease Assets		42.3
Other Noncurrent Assets		21.6
Accounts Payable		(183.2)
Accrued Compensation and Benefits		(66.1)
Other Accrued Expenses		(145.7)
Current Operating Lease Liabilities		(12.5)
Current Maturities of Long-Term Debt		(0.4)
Long-Term Debt		(25.3)
Deferred Income Taxes		(560.7)
Pension and Other Post Retirement Benefits		(19.8)
Noncurrent Operating Lease Liabilities		(29.7)
Other Noncurrent Liabilities		(8.3)
Total Identifiable Net Assets		2,635.3
Goodwill		2,499.3
Preliminary purchase price		$ 5,134.6
Altra Merger Agreement | Effect of Change
Business Acquisition [Line Items]
Inventories	(48.9)
Prepaid Expenses and Other Current Assets	(0.6)
Property, Plant and Equipment	(8.8)
Intangible Assets	(82.0)
Operating Lease Assets	4.5
Other Noncurrent Assets	(8.9)
Accounts Payable	(0.1)
Accrued Compensation and Benefits	0.1
Other Accrued Expenses	1.1
Current Operating Lease Liabilities	0.2
Deferred Income Taxes	27.4
Noncurrent Operating Lease Liabilities	0.7
Total Identifiable Net Assets	(115.3)
Goodwill	$ 115.3