Fair value of assets held under trust.

No definition available.

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- Definition

Amount of transfers of liabilities measured on a recurring basis between levels of the fair value hierarchy.

+ References

No definition available.

+ Details

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- Definition

Fair value portion of probable future economic benefits obtained or controlled by an entity as a result of past transactions or events.

+ References

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- References

No definition available.

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

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- Definition

Fair value of obligations measured on a recurring basis.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (b)
-URI https://asc.fasb.org/extlink&oid=126976982&loc=d3e19207-110258

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (a)
-URI https://asc.fasb.org/extlink&oid=126976982&loc=d3e19207-110258

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- Definition

Fair value portion of asset contracts related to the exchange of different currencies, including, but not limited to, foreign currency options, forward contracts, and swaps.

+ References

No definition available.

+ Details

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- Definition

Fair value portion of liability contracts related to the exchange of different currencies, including, but not limited to, foreign currency options, forward (delivery or nondelivery) contracts, and swaps entered into.

+ References

No definition available.

+ Details

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- Definition

Fair value portion of investment securities, including, but not limited to, marketable securities, derivative financial instruments, and investments accounted for under the equity method.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (a)
-URI https://asc.fasb.org/extlink&oid=126976982&loc=d3e19207-110258

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- Definition

Fair value of financial and nonfinancial obligations.

+ References

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- References

No definition available.

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- Definition

Fair value portion of liabilities pertaining to principal and customer trading transactions, or which may be incurred with the objective of generating a profit from short-term fluctuations in price as part of an entity's market-making, hedging and proprietary trading. Examples include, but are not limited to, short positions in securities, derivatives and commodities.

+ References

No definition available.

+ Details

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Fair Value of Assets and Liabilities - Fair Value Measurements (Details) - USD ($) $ in Millions	9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Dec. 31, 2021
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value Transfers Between Levels Amount	$ 0.0	$ 0.0
Fair Value, Measurements, Recurring [Member]
Fair value assets measured on recurring basis
Total	19.1		$ 41.4
Fair value liabilities measured on recurring basis
Total	4.5		9.9
Fair Value, Measurements, Recurring [Member] \| Fair Value, Inputs, Level 1 [Member]
Fair value assets measured on recurring basis
Total	19.1		41.3
Fair value liabilities measured on recurring basis
Total	4.5		7.0
Fair Value, Measurements, Recurring [Member] \| Level 2 [Member]
Fair value assets measured on recurring basis
Total	0.0		0.1
Fair value liabilities measured on recurring basis
Total	0.0		2.9
Assets held in rabbi trusts [Member]
Fair value assets measured on recurring basis
Fair value of investment assets	4.5		7.0
Short-term investments \| Certificates of deposit \| Fair Value, Measurements, Recurring [Member]
Fair value assets measured on recurring basis
Fair value of investment assets	14.6		34.3
Short-term investments \| Certificates of deposit \| Fair Value, Measurements, Recurring [Member] \| Fair Value, Inputs, Level 1 [Member]
Fair value assets measured on recurring basis
Fair value of investment assets	14.6		34.3
Short-term investments \| Certificates of deposit \| Fair Value, Measurements, Recurring [Member] \| Level 2 [Member]
Fair value assets measured on recurring basis
Fair value of investment assets	0.0		0.0
Securities and other investments \| Interest rate swaps \| Fair Value, Measurements, Recurring [Member]
Fair value assets measured on recurring basis
Trading Liabilities, Fair Value Disclosure	0.0		2.8
Securities and other investments \| Interest rate swaps \| Fair Value, Measurements, Recurring [Member] \| Fair Value, Inputs, Level 1 [Member]
Fair value assets measured on recurring basis
Trading Liabilities, Fair Value Disclosure	0.0		0.0
Securities and other investments \| Interest rate swaps \| Fair Value, Measurements, Recurring [Member] \| Level 2 [Member]
Fair value assets measured on recurring basis
Trading Liabilities, Fair Value Disclosure	0.0		2.8
Securities and other investments \| Assets held in rabbi trusts [Member] \| Fair Value, Measurements, Recurring [Member]
Fair value assets measured on recurring basis
Assets held in rabbi trusts	4.5		7.0
Securities and other investments \| Assets held in rabbi trusts [Member] \| Fair Value, Measurements, Recurring [Member] \| Fair Value, Inputs, Level 1 [Member]
Fair value assets measured on recurring basis
Assets held in rabbi trusts	4.5		7.0
Securities and other investments \| Assets held in rabbi trusts [Member] \| Fair Value, Measurements, Recurring [Member] \| Level 2 [Member]
Fair value assets measured on recurring basis
Assets held in rabbi trusts	0.0		0.0
Other current assets \| Foreign exchange forward contracts \| Fair Value, Measurements, Recurring [Member]
Fair value assets measured on recurring basis
Foreign Currency Contract, Asset, Fair Value Disclosure	0.0		0.1
Other current assets \| Foreign exchange forward contracts \| Fair Value, Measurements, Recurring [Member] \| Fair Value, Inputs, Level 1 [Member]
Fair value assets measured on recurring basis
Foreign Currency Contract, Asset, Fair Value Disclosure	0.0		0.0
Other current assets \| Foreign exchange forward contracts \| Fair Value, Measurements, Recurring [Member] \| Level 2 [Member]
Fair value assets measured on recurring basis
Foreign Currency Contract, Asset, Fair Value Disclosure	0.0		0.1
Other current liabilities \| Foreign exchange forward contracts \| Fair Value, Measurements, Recurring [Member]
Fair value assets measured on recurring basis
Foreign Currency Contracts, Liability, Fair Value Disclosure	0.0		0.1
Other current liabilities \| Foreign exchange forward contracts \| Fair Value, Measurements, Recurring [Member] \| Fair Value, Inputs, Level 1 [Member]
Fair value assets measured on recurring basis
Foreign Currency Contracts, Liability, Fair Value Disclosure	0.0		0.0
Other current liabilities \| Foreign exchange forward contracts \| Fair Value, Measurements, Recurring [Member] \| Level 2 [Member]
Fair value assets measured on recurring basis
Foreign Currency Contracts, Liability, Fair Value Disclosure	0.0		0.1
Other liabilities \| Fair Value, Measurements, Recurring [Member]
Fair value liabilities measured on recurring basis
Deferred compensation	4.5		7.0
Other liabilities \| Fair Value, Measurements, Recurring [Member] \| Fair Value, Inputs, Level 1 [Member]
Fair value liabilities measured on recurring basis
Deferred compensation	4.5		7.0
Other liabilities \| Fair Value, Measurements, Recurring [Member] \| Level 2 [Member]
Fair value liabilities measured on recurring basis
Deferred compensation	$ 0.0		$ 0.0