Carrying Amounts and Estimated Fair Values of Other Financial Instruments (Details) - USD ($) $ in Millions	Mar. 31, 2022	Dec. 31, 2021
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Short-term borrowings	$ 103.0	$ 252.8
Senior Notes	2,310.9	2,310.1
Carrying Amount
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Cash equivalents	14.4	17.1
Short-term borrowings	103.0	252.8
Business Acquisition Liabilities	34.0	34.0
Fair Value \| Fair Value, Inputs, Level 1
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Cash equivalents	14.4	17.1
Fair Value \| Fair Value, Inputs, Level 2
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Short-term borrowings	103.0	252.8
Fair Value \| Fair Value, Inputs, Level 3
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Business Acquisition Liabilities	34.0	34.0
Interest Rate Swap \| Carrying Amount
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Interest Rate Swap Lock Agreement liability	19.3	41.6
Interest Rate Swap \| Fair Value \| Fair Value, Inputs, Level 2
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Interest Rate Swap Lock Agreement liability	19.3	41.6
2.45% Senior notes due August 1, 2022 \| Carrying Amount
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Senior Notes	300.0	300.0
2.45% Senior notes due August 1, 2022 \| Fair Value \| Fair Value, Inputs, Level 2
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Term loan		302.9
Senior notes	300.7
2.875% Senior notes due October 1, 2022 \| Carrying Amount
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Senior Notes	400.0	399.9
2.875% Senior notes due October 1, 2022 \| Fair Value \| Fair Value, Inputs, Level 2
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Senior notes	402.0	406.4
Term Loan Due December 22, 2024
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Term loan	400.0	400.0
Term Loan Due December 22, 2024 \| Carrying Amount
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Term loan		400.0
Senior Notes	400.0
Term Loan Due December 22, 2024 \| Fair Value \| Fair Value, Inputs, Level 2
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Senior notes	400.0	400.0
3.15% Senior notes due August 1, 2027 \| Carrying Amount
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Senior Notes	424.8	424.7
3.15% Senior notes due August 1, 2027 \| Fair Value \| Fair Value, Inputs, Level 2
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Senior notes	425.4	450.1
2.3% Senior notes due December 15, 2031 \| Carrying Amount
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Senior Notes	399.2	399.2
2.3% Senior notes due December 15, 2031 \| Fair Value \| Fair Value, Inputs, Level 2
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Senior Notes		403.5
Senior notes	364.8
3.95% Senior notes due August 1, 2047 \| Carrying Amount
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Senior Notes	397.5	397.5
3.95% Senior notes due August 1, 2047 \| Fair Value \| Fair Value, Inputs, Level 2
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Senior Notes		$ 471.6
Senior notes	$ 412.8

Amount of liability recognized arising from contingent consideration in a business combination.

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