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Fair Value Measurements - Fair Value, Assets and Liabilities Measured on a Recurring Basis (Details) - Recurring - USD ($) $ in Millions	Mar. 31, 2023	Dec. 31, 2022
Fair Value, Assets and Liabilities Measured on Recurring Basis [Abstract]
Equity securities	$ 111.6	$ 110.0
Redeemable noncontrolling interests	37.5	35.6
Other Current Assets
Fair Value, Assets and Liabilities Measured on Recurring Basis [Abstract]
Equity securities	29.5	30.9
Other Noncurrent Assets
Fair Value, Assets and Liabilities Measured on Recurring Basis [Abstract]
Equity securities	82.1	79.1
Fair Value, Inputs, Level 1
Fair Value, Assets and Liabilities Measured on Recurring Basis [Abstract]
Equity securities	3.8	3.7
Redeemable noncontrolling interests	0.0	0.0
Fair Value, Inputs, Level 2
Fair Value, Assets and Liabilities Measured on Recurring Basis [Abstract]
Equity securities	107.8	106.3
Redeemable noncontrolling interests	0.0	0.0
Fair Value, Inputs, Level 3
Fair Value, Assets and Liabilities Measured on Recurring Basis [Abstract]
Equity securities	0.0	0.0
Redeemable noncontrolling interests	$ 37.5	$ 35.6

X

- Definition

Amount of investment in equity security measured at fair value with change in fair value recognized in net income (FV-NI).

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 825
-SubTopic 10
-Section 45
-Paragraph 1A
-URI https://asc.fasb.org/extlink&oid=123594786&loc=SL75136599-209740

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
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- References

No definition available.

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- Definition

The aggregate fair value as of the reporting date of all noncontrolling interests which are redeemable by the (parent) entity (1) at a fixed or determinable price on a fixed or determinable date, (2) at the option of the holder of the noncontrolling interest, or (3) upon occurrence of an event that is not solely within the control of the (parent) entity. This item includes noncontrolling interest holder's ownership (or holders' ownership) regardless of the type of equity interest (common, preferred, other) including all potential organizational (legal) forms of the investee entity.

+ References

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-Name Accounting Standards Codification
-Topic 480
-SubTopic 10
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