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2. Fair Value Measurements Fair Value Level Table (Details) - USD ($) $ in Millions | 3 Months Ended |
--- | --- | ---
Mar. 31, 2021 | Dec. 31, 2020
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |  |
Unrealized Gain on Securities |  | $ 1,179.4 |  |  |
Debt Securities, Available-for-sale |  | 282.3 |  |  |
Fair Value, Recurring [Member] |  |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |  |
Restricted Investments, at Fair Value | [1] | 6.8 |  | $ 6.7 |
Equity Securities | [2] | 10,524.3 |  | 9,582.4 |
Debt Securities, Available-for-sale | [3] | 282.3 |  | 267.6 |
Forward Foreign Exchange Contracts, Asset, Fair Value Disclosure | [4] | 0.6 |  | 1.0 |
Assets, Fair Value Disclosure |  | 10,925.9 |  | 9,990.5 |
Forward Foreign Exchange Contracts, Liability, Fair Value Disclosure | [5] | 1.1 |  | 1.0 |
Business Combination, Contingent Consideration, Liability | [6] | 0.7 |  | 0.7 |
Liabilities, Fair Value Disclosure |  | 1.8 |  | 1.7 |
Fair Value, Recurring [Member] | Fair Value, Inputs, Level 1 [Member] |  |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |  |
Restricted Investments, at Fair Value | [1] | 6.8 |  | 6.7 |
Equity Securities | [2] | 10,524.3 |  | 9,582.4 |
Debt Securities, Available-for-sale | [3] | 0.0 |  | 0.0 |
Forward Foreign Exchange Contracts, Asset, Fair Value Disclosure | [4] | 0.0 |  | 0.0 |
Assets, Fair Value Disclosure |  | 10,601.1 |  | 9,666.8 |
Forward Foreign Exchange Contracts, Liability, Fair Value Disclosure | [5] | 0.0 |  | 0.0 |
Business Combination, Contingent Consideration, Liability | [6] | 0.0 |  | 0.0 |
Liabilities, Fair Value Disclosure |  | 0.0 |  | 0.0 |
Fair Value, Recurring [Member] | Fair Value, Inputs, Level 2 [Member] |  |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |  |
Restricted Investments, at Fair Value | [1] | 0.0 |  | 0.0 |
Equity Securities | [2] | 0.0 |  | 0.0 |
Debt Securities, Available-for-sale |  | 282.3 |  | 267.6 | [3]
Forward Foreign Exchange Contracts, Asset, Fair Value Disclosure | [4] | 0.6 |  | 1.0 |
Assets, Fair Value Disclosure |  | 324.8 |  | 323.7 |
Forward Foreign Exchange Contracts, Liability, Fair Value Disclosure | [5] | 1.1 |  | 1.0 |
Business Combination, Contingent Consideration, Liability | [6] | 0.0 |  | 0.0 |
Liabilities, Fair Value Disclosure |  | 1.1 |  | 1.0 |
Fair Value, Recurring [Member] | Fair Value, Inputs, Level 3 [Member] |  |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |  |
Restricted Investments, at Fair Value | [1] | 0.0 |  | 0.0 |
Equity Securities | [2] | 0.0 |  | 0.0 |
Debt Securities, Available-for-sale | [3] | 0.0 |  | 0.0 |
Forward Foreign Exchange Contracts, Asset, Fair Value Disclosure | [4] | 0.0 |  | 0.0 |
Assets, Fair Value Disclosure |  | 0.0 |  | 0.0 |
Forward Foreign Exchange Contracts, Liability, Fair Value Disclosure | [5] | 0.0 |  | 0.0 |
Business Combination, Contingent Consideration, Liability | [6] | 0.7 |  | 0.7 |
Liabilities, Fair Value Disclosure |  | 0.7 |  | 0.7 |
US Government Sponsored Agencies [Member] | Fair Value, Recurring [Member] | Fair Value, Inputs, Level 1 [Member] |  |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |  |
Cash and Cash Equivalents, Fair Value Disclosure |  | 0.0 |  | 0.0 |
Asset-backed Securities [Member] | Fair Value, Recurring [Member] |  |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |  |
Cash and Cash Equivalents, Fair Value Disclosure | [7] |  |  | 0.9 |
Asset-backed Securities [Member] | Fair Value, Recurring [Member] | Fair Value, Inputs, Level 1 [Member] |  |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |  |
Cash and Cash Equivalents, Fair Value Disclosure | [7] |  |  | 0.0 |
Asset-backed Securities [Member] | Fair Value, Recurring [Member] | Fair Value, Inputs, Level 2 [Member] |  |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |  |
Cash and Cash Equivalents, Fair Value Disclosure | [7] |  |  | 0.9 |
Asset-backed Securities [Member] | Fair Value, Recurring [Member] | Fair Value, Inputs, Level 3 [Member] |  |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |  |
Cash and Cash Equivalents, Fair Value Disclosure | [7] |  |  | 0.0 |
Commercial Paper [Member] | Fair Value, Recurring [Member] |  |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |  |
Cash and Cash Equivalents, Fair Value Disclosure | [7] | 29.3 |  | 41.7 |
Commercial Paper [Member] | Fair Value, Recurring [Member] | Fair Value, Inputs, Level 1 [Member] |  |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |  |
Cash and Cash Equivalents, Fair Value Disclosure | [7] | 0.0 |  | 0.0 |
Commercial Paper [Member] | Fair Value, Recurring [Member] | Fair Value, Inputs, Level 2 [Member] |  |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |  |
Cash and Cash Equivalents, Fair Value Disclosure | [7] | 29.3 |  | 41.7 |
Commercial Paper [Member] | Fair Value, Recurring [Member] | Fair Value, Inputs, Level 3 [Member] |  |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |  |
Cash and Cash Equivalents, Fair Value Disclosure | [7] | 0.0 |  | 0.0 |
Time Deposits [Member] | Fair Value, Recurring [Member] |  |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |  |
Cash and Cash Equivalents, Fair Value Disclosure | [7] | 18.7 |  | 27.6 |
Time Deposits [Member] | Fair Value, Recurring [Member] | Fair Value, Inputs, Level 1 [Member] |  |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |  |
Cash and Cash Equivalents, Fair Value Disclosure | [7] | 8.7 |  | 17.6 |
Time Deposits [Member] | Fair Value, Recurring [Member] | Fair Value, Inputs, Level 2 [Member] |  |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |  |
Cash and Cash Equivalents, Fair Value Disclosure | [7] | 10.0 |  | 10.0 |
Time Deposits [Member] | Fair Value, Recurring [Member] | Fair Value, Inputs, Level 3 [Member] |  |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |  |
Cash and Cash Equivalents, Fair Value Disclosure | [7] | 0.0 |  | 0.0 |
Money Market Funds [Member] | Fair Value, Recurring [Member] |  |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |  |
Cash and Cash Equivalents, Fair Value Disclosure | [7] | 61.3 |  | 60.1 |
Money Market Funds [Member] | Fair Value, Recurring [Member] | Fair Value, Inputs, Level 1 [Member] |  |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |  |
Cash and Cash Equivalents, Fair Value Disclosure | [7] | 61.3 |  | 60.1 |
Money Market Funds [Member] | Fair Value, Recurring [Member] | Fair Value, Inputs, Level 2 [Member] |  |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |  |
Cash and Cash Equivalents, Fair Value Disclosure | [7] | 0.0 |  | 0.0 |
Money Market Funds [Member] | Fair Value, Recurring [Member] | Fair Value, Inputs, Level 3 [Member] |  |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |  |
Cash and Cash Equivalents, Fair Value Disclosure | [7] | 0.0 |  | 0.0 |
Cash Equivalents [Member] | Fair Value, Recurring [Member] |  |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |  |
Cash and Cash Equivalents, Fair Value Disclosure | [7] | 111.9 |  | 132.8 |
Cash Equivalents [Member] | Fair Value, Recurring [Member] | Fair Value, Inputs, Level 1 [Member] |  |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |  |
Cash and Cash Equivalents, Fair Value Disclosure | [7] | 70.0 |  | 77.7 |
Cash Equivalents [Member] | Fair Value, Recurring [Member] | Fair Value, Inputs, Level 2 [Member] |  |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |  |
Cash and Cash Equivalents, Fair Value Disclosure | [7] | 41.9 |  | 55.1 |
Cash Equivalents [Member] | Fair Value, Recurring [Member] | Fair Value, Inputs, Level 3 [Member] |  |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |  |
Cash and Cash Equivalents, Fair Value Disclosure | [7] | 0.0 |  | 0.0 |
US Treasury Securities | Fair Value, Recurring [Member] |  |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |  |
Cash and Cash Equivalents, Fair Value Disclosure |  | 2.6 |  | 2.5 |
US Treasury Securities | Fair Value, Recurring [Member] | Fair Value, Inputs, Level 2 [Member] |  |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |  |
Cash and Cash Equivalents, Fair Value Disclosure |  | 2.6 |  | 2.5 |
US Treasury Securities | Fair Value, Recurring [Member] | Fair Value, Inputs, Level 3 [Member] |  |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |  |
Cash and Cash Equivalents, Fair Value Disclosure |  | 0.0 |  | 0.0 |
Foreign Government Debt [Member] | Fair Value, Recurring [Member] |  |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |  |
Debt Securities, Available-for-sale |  | 2.1 | [3] | 2.1 |
Foreign Government Debt [Member] | Fair Value, Recurring [Member] | Fair Value, Inputs, Level 1 [Member] |  |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |  |
Debt Securities, Available-for-sale |  | 0.0 | [3] | 0.0 |
Foreign Government Debt [Member] | Fair Value, Recurring [Member] | Fair Value, Inputs, Level 2 [Member] |  |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |  |
Debt Securities, Available-for-sale |  | 2.1 | [3] | 2.1 |
Foreign Government Debt [Member] | Fair Value, Recurring [Member] | Fair Value, Inputs, Level 3 [Member] |  |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |  |
Debt Securities, Available-for-sale |  | 0.0 | [3] | 0.0 |
Municipal Obligations (Member) | Fair Value, Recurring [Member] |  |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |  |
Debt Securities, Available-for-sale | [3] | 14.1 |  | 15.2 |
Municipal Obligations (Member) | Fair Value, Recurring [Member] | Fair Value, Inputs, Level 1 [Member] |  |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |  |
Debt Securities, Available-for-sale | [3] | 0.0 |  | 0.0 |
Municipal Obligations (Member) | Fair Value, Recurring [Member] | Fair Value, Inputs, Level 2 [Member] |  |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |  |
Debt Securities, Available-for-sale | [3] | 14.1 |  | 15.2 |
Municipal Obligations (Member) | Fair Value, Recurring [Member] | Fair Value, Inputs, Level 3 [Member] |  |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |  |
Debt Securities, Available-for-sale | [3] | 0.0 |  | 0.0 |
Foreign Government Obligations [Member] | Fair Value, Recurring [Member] |  |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |  |
Debt Securities, Available-for-sale | [3] | 4.0 |  | 4.0 |
Foreign Government Obligations [Member] | Fair Value, Recurring [Member] | Fair Value, Inputs, Level 1 [Member] |  |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |  |
Debt Securities, Available-for-sale | [3] | 0.0 |  | 0.0 |
Foreign Government Obligations [Member] | Fair Value, Recurring [Member] | Fair Value, Inputs, Level 2 [Member] |  |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |  |
Debt Securities, Available-for-sale | [3] | 4.0 |  | 4.0 |
Foreign Government Obligations [Member] | Fair Value, Recurring [Member] | Fair Value, Inputs, Level 3 [Member] |  |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |  |
Debt Securities, Available-for-sale | [3] | 0.0 |  | 0.0 |
Corporate Debt Securities [Member] | Fair Value, Recurring [Member] |  |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |  |
Debt Securities, Available-for-sale | [3] | 162.2 |  | 133.2 |
Corporate Debt Securities [Member] | Fair Value, Recurring [Member] | Fair Value, Inputs, Level 1 [Member] |  |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |  |
Debt Securities, Available-for-sale | [3] | 0.0 |  | 0.0 |
Corporate Debt Securities [Member] | Fair Value, Recurring [Member] | Fair Value, Inputs, Level 2 [Member] |  |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |  |
Debt Securities, Available-for-sale | [3] | 162.2 |  | 133.2 |
Corporate Debt Securities [Member] | Fair Value, Recurring [Member] | Fair Value, Inputs, Level 3 [Member] |  |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |  |
Debt Securities, Available-for-sale | [3] | 0.0 |  | 0.0 |
US Government Sponsored Agencies [Member] | Fair Value, Recurring [Member] |  |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |  |
Debt Securities, Available-for-sale | [3] | 71.8 |  | 76.9 |
US Government Sponsored Agencies [Member] | Fair Value, Recurring [Member] | Fair Value, Inputs, Level 1 [Member] |  |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |  |
Debt Securities, Available-for-sale | [3] | 0.0 |  | 0.0 |
US Government Sponsored Agencies [Member] | Fair Value, Recurring [Member] | Fair Value, Inputs, Level 2 [Member] |  |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |  |
Debt Securities, Available-for-sale | [3] | 71.8 |  | 76.9 |
US Government Sponsored Agencies [Member] | Fair Value, Recurring [Member] | Fair Value, Inputs, Level 3 [Member] |  |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |  |
Debt Securities, Available-for-sale | [3] | 0.0 |  | 0.0 |
Asset-backed Securities [Member] | Fair Value, Recurring [Member] |  |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |  |
Debt Securities, Available-for-sale | [3] | 28.1 |  | 36.2 |
Asset-backed Securities [Member] | Fair Value, Recurring [Member] | Fair Value, Inputs, Level 1 [Member] |  |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |  |
Debt Securities, Available-for-sale | [3] | 0.0 |  | 0.0 |
Asset-backed Securities [Member] | Fair Value, Recurring [Member] | Fair Value, Inputs, Level 2 [Member] |  |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |  |
Debt Securities, Available-for-sale | [3] | 28.1 |  | 36.2 |
Asset-backed Securities [Member] | Fair Value, Recurring [Member] | Fair Value, Inputs, Level 3 [Member] |  |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |  |
Debt Securities, Available-for-sale | [3] | 0.0 |  | 0.0 |
Other Current Liabilities [Member] | Fair Value, Recurring [Member] |  |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |  |
Business Combination, Contingent Consideration, Liability | [6] | 0.6 |  | 0.6 |
Other Noncurrent Liabilities [Member] | Fair Value, Recurring [Member] |  |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |  |
Business Combination, Contingent Consideration, Liability | [6] | 0.1 |  | 0.1 |
Short-term Investments [Member] | Fair Value, Recurring [Member] |  |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |  |
Equity Securities | [2] | 64.2 |  | 61.4 |
Debt Securities, Available-for-sale | [3] | 282.2 |  | 267.5 |
Short-term Investments [Member] | Foreign Government Debt [Member] | Fair Value, Recurring [Member] |  |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |  |
Debt Securities, Available-for-sale |  | 2.1 |  | 2.1 |
Short-term Investments [Member] | Municipal Obligations (Member) | Fair Value, Recurring [Member] |  |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |  |
Debt Securities, Available-for-sale |  | 14.1 |  | 15.2 |
Short-term Investments [Member] | Foreign Government Obligations [Member] | Fair Value, Recurring [Member] |  |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |  |
Debt Securities, Available-for-sale |  | 4.0 |  | 4.0 |
Short-term Investments [Member] | Corporate Debt Securities [Member] | Fair Value, Recurring [Member] |  |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |  |
Debt Securities, Available-for-sale |  | 162.2 |  | 133.2 |
Short-term Investments [Member] | US Government Sponsored Agencies [Member] | Fair Value, Recurring [Member] |  |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |  |
Debt Securities, Available-for-sale |  | 71.8 |  | 76.9 |
Short-term Investments [Member] | Asset-backed Securities [Member] | Fair Value, Recurring [Member] |  |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |  |
Debt Securities, Available-for-sale |  | 28.0 |  | 36.1 |
Other Investments [Member] | Fair Value, Recurring [Member] |  |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |  |
Restricted Investments, at Fair Value |  | 1.2 |  | 1.1 |
Equity Securities | [2] | 10,460.1 |  | 9,521.0 |
Debt Securities, Available-for-sale | [3] | 0.1 |  | 0.1 |
Restricted investment [Member] | Fair Value, Recurring [Member] |  |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |  |
Restricted Investments, at Fair Value |  | $ 5.6 |  | $ 5.6 |
[1] | Restricted investments are included in the following accounts in the condensed consolidated balance sheets (in millions):
| March 31, 2021 |  | December 31, 2020
Restricted investments | $ | 5.6 |  |  | $ | 5.6 |
Other investments | 1.2 |  |  | 1.1 |
Total | $ | 6.8 |  |  | $ | 6.7 |
[2] | Equity securities are included in the following accounts in the condensed consolidated balance sheets (in millions):
| March 31, 2021 |  | December 31, 2020
Short-term investments | $ | 64.2 |  |  | $ | 61.4 |
Other investments | 10,460.1 |  |  | 9,521.0 |
Total | $ | 10,524.3 |  |  | $ | 9,582.4 |
[3] | Available-for-sale investments are included in the following accounts in the condensed consolidated balance sheets (in millions):
| March 31, 2021 |  | December 31, 2020
Short-term investments | $ | 282.2 |  |  | $ | 267.5 |
Other investments | 0.1 |  |  | 0.1 |
Total | $ | 282.3 |  |  | $ | 267.6 |
[4] | Forward foreign exchange contracts in an asset position are included in other current assets in the condensed consolidated balance sheets.
[5] | Forward foreign exchange contracts in a liability position are included in other current liabilities in the condensed consolidated balance sheets.
[6] | Contingent consideration liability is included in the following accounts in the condensed consolidated balance sheets (in millions):
| March 31, 2021 |  | December 31, 2020
Other current liabilities | $ | 0.6 |  |  | $ | 0.6 |
Other long-term liabilities | 0.1 |  |  | 0.1 |
Total | $ | 0.7 |  |  | $ | 0.7 |
[7] | Cash equivalents are included in Cash and cash equivalents in the condensed consolidated balance sheets.

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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 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 (a) -URI http://asc.fasb.org/extlink&oid=117815213&loc=d3e19207-110258 + Details
Name: | us-gaap_AssetsFairValueDisclosure
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
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