3. Fair Value Measurements (Details) - Fair Value, Measurements, Recurring [Member] - USD ($) $ in Millions | Dec. 31, 2016 | Dec. 31, 2015 |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | | | |
Restricted Investments, at Fair Value | | $ 4.6 | | $ 4.2 |
Available-for-sale investments | [1] | 1,115.6 | | 957.6 |
Forward foreign exchange contracts, Asset | [2] | 0.6 | | 0.9 |
Financial Assets Carried at Fair Value | | 1,173.7 | | 1,034.3 |
Forward foreign exchange contracts, Liability | [3] | 1.3 | | 1.1 |
Business Combination, Contingent Consideration, Liability | [4] | 38.5 | | 19.1 |
Liabilities, Fair Value Disclosure | | 39.8 | | 20.2 |
Interest-bearing Deposits [Member] | | | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | | | |
Available-for-sale investments | | 3.6 | | |
Corporate Debt Securities [Member] | | | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | | | |
Available-for-sale investments | [1] | 179.4 | | 156.9 |
US Government Sponsored Agencies [Member] | | | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | | | |
Available-for-sale investments | [1] | 82.5 | | 74.8 |
Foreign Government Obligations [Member] | | | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | | | |
Available-for-sale investments | [1] | 4.4 | | 4.6 |
Municipal Obligations [Member] | | | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | | | |
Available-for-sale investments | [1] | 15.4 | | 6.4 |
Marketable Equity Securities [Member] | | | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | | | |
Available-for-sale investments | [1] | 767.8 | | 660.1 |
Asset-backed Securities [Member] | | | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | | | |
Available-for-sale investments | [1] | 62.5 | | 54.8 |
Foreign Government Obligations [Member] | | | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | | | |
Cash equivalents | | | | 0.6 |
Foreign Time Deposits [Member] | | | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | | | |
Cash equivalents | [5] | 11.8 | | 11.9 |
US Government Sponsored Agencies [Member] | | | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | | | |
Cash equivalents | | 1.1 | [5] | 14.6 |
Money Market Funds [Member] | | | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | | | |
Cash equivalents | [5] | 5.9 | | 11.3 |
Commercial Paper [Member] | | | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | | | |
Cash equivalents | [5] | 14.1 | | 33.2 |
Cash Equivalents [Member] | | | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | | | |
Cash equivalents | [5] | 52.9 | | 71.6 |
Domestic Time Deposit [Member] | | | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | | | |
Cash equivalents | | 20 | | |
Fair Value, Inputs, Level 1 [Member] | | | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | | | |
Restricted Investments, at Fair Value | | 4.6 | | 4.2 |
Available-for-sale investments | [1] | 767.8 | | 660.1 |
Forward foreign exchange contracts, Asset | [2] | 0 | | 0 |
Financial Assets Carried at Fair Value | | 790.1 | | 687.5 |
Forward foreign exchange contracts, Liability | [3] | 0 | | 0 |
Business Combination, Contingent Consideration, Liability | [4] | 0 | | 0 |
Liabilities, Fair Value Disclosure | | 0 | | 0 |
Fair Value, Inputs, Level 1 [Member] | Interest-bearing Deposits [Member] | | | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | | | |
Available-for-sale investments | | 0 | | |
Fair Value, Inputs, Level 1 [Member] | Corporate Debt Securities [Member] | | | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | | | |
Available-for-sale investments | [1] | 0 | | 0 |
Fair Value, Inputs, Level 1 [Member] | US Government Sponsored Agencies [Member] | | | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | | | |
Available-for-sale investments | [1] | 0 | | 0 |
Fair Value, Inputs, Level 1 [Member] | Foreign Government Obligations [Member] | | | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | | | |
Available-for-sale investments | [1] | 0 | | 0 |
Fair Value, Inputs, Level 1 [Member] | Municipal Obligations [Member] | | | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | | | |
Available-for-sale investments | [1] | 0 | | 0 |
Fair Value, Inputs, Level 1 [Member] | Marketable Equity Securities [Member] | | | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | | | |
Available-for-sale investments | [1] | 767.8 | | 660.1 |
Fair Value, Inputs, Level 1 [Member] | Asset-backed Securities [Member] | | | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | | | |
Available-for-sale investments | [1] | 0 | | 0 |
Fair Value, Inputs, Level 1 [Member] | Foreign Government Obligations [Member] | | | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | | | |
Cash equivalents | | | | 0 |
Fair Value, Inputs, Level 1 [Member] | Foreign Time Deposits [Member] | | | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | | | |
Cash equivalents | [5] | 11.8 | | 11.9 |
Fair Value, Inputs, Level 1 [Member] | US Government Sponsored Agencies [Member] | | | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | | | |
Cash equivalents | | 0 | [5] | 0 |
Fair Value, Inputs, Level 1 [Member] | Money Market Funds [Member] | | | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | | | |
Cash equivalents | [5] | 5.9 | | 11.3 |
Fair Value, Inputs, Level 1 [Member] | Commercial Paper [Member] | | | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | | | |
Cash equivalents | [5] | 0 | | 0 |
Fair Value, Inputs, Level 1 [Member] | Cash Equivalents [Member] | | | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | | | |
Cash equivalents | [5] | 17.7 | | 23.2 |
Fair Value, Inputs, Level 1 [Member] | Domestic Time Deposit [Member] | | | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | | | |
Cash equivalents | | 0 | | |
Fair Value, Inputs, Level 2 [Member] | | | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | | | |
Restricted Investments, at Fair Value | | 0 | | 0 |
Available-for-sale investments | [1] | 347.8 | | 297.5 |
Forward foreign exchange contracts, Asset | [2] | 0.6 | | 0.9 |
Financial Assets Carried at Fair Value | | 383.6 | | 346.8 |
Forward foreign exchange contracts, Liability | [3] | 1.3 | | 1.1 |
Business Combination, Contingent Consideration, Liability | [4] | 0 | | 0 |
Liabilities, Fair Value Disclosure | | 1.3 | | 1.1 |
Fair Value, Inputs, Level 2 [Member] | Interest-bearing Deposits [Member] | | | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | | | |
Available-for-sale investments | | 3.6 | | |
Fair Value, Inputs, Level 2 [Member] | Corporate Debt Securities [Member] | | | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | | | |
Available-for-sale investments | [1] | 179.4 | | 156.9 |
Fair Value, Inputs, Level 2 [Member] | US Government Sponsored Agencies [Member] | | | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | | | |
Available-for-sale investments | [1] | 82.5 | | 74.8 |
Fair Value, Inputs, Level 2 [Member] | Foreign Government Obligations [Member] | | | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | | | |
Available-for-sale investments | [1] | 4.4 | | 4.6 |
Fair Value, Inputs, Level 2 [Member] | Municipal Obligations [Member] | | | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | | | |
Available-for-sale investments | [1] | 15.4 | | 6.4 |
Fair Value, Inputs, Level 2 [Member] | Marketable Equity Securities [Member] | | | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | | | |
Available-for-sale investments | [1] | 0 | | 0 |
Fair Value, Inputs, Level 2 [Member] | Asset-backed Securities [Member] | | | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | | | |
Available-for-sale investments | [1] | 62.5 | | 54.8 |
Fair Value, Inputs, Level 2 [Member] | Foreign Government Obligations [Member] | | | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | | | |
Cash equivalents | | | | 0.6 |
Fair Value, Inputs, Level 2 [Member] | Foreign Time Deposits [Member] | | | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | | | |
Cash equivalents | [5] | 0 | | 0 |
Fair Value, Inputs, Level 2 [Member] | US Government Sponsored Agencies [Member] | | | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | | | |
Cash equivalents | | 1.1 | [5] | 14.6 |
Fair Value, Inputs, Level 2 [Member] | Money Market Funds [Member] | | | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | | | |
Cash equivalents | [5] | 0 | | 0 |
Fair Value, Inputs, Level 2 [Member] | Commercial Paper [Member] | | | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | | | |
Cash equivalents | [5] | 14.1 | | 33.2 |
Fair Value, Inputs, Level 2 [Member] | Cash Equivalents [Member] | | | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | | | |
Cash equivalents | [5] | 35.2 | | 48.4 |
Fair Value, Inputs, Level 2 [Member] | Domestic Time Deposit [Member] | | | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | | | |
Cash equivalents | | 20 | | |
Fair Value, Inputs, Level 3 [Member] | | | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | | | |
Restricted Investments, at Fair Value | | 0 | | 0 |
Available-for-sale investments | [1] | 0 | | 0 |
Forward foreign exchange contracts, Asset | [2] | 0 | | 0 |
Financial Assets Carried at Fair Value | | 0 | | 0 |
Forward foreign exchange contracts, Liability | [3] | 0 | | 0 |
Business Combination, Contingent Consideration, Liability | [4] | 38.5 | | 19.1 |
Liabilities, Fair Value Disclosure | | 38.5 | | 19.1 |
Fair Value, Inputs, Level 3 [Member] | Interest-bearing Deposits [Member] | | | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | | | |
Available-for-sale investments | | 0 | | |
Fair Value, Inputs, Level 3 [Member] | Corporate Debt Securities [Member] | | | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | | | |
Available-for-sale investments | [1] | 0 | | 0 |
Fair Value, Inputs, Level 3 [Member] | US Government Sponsored Agencies [Member] | | | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | | | |
Available-for-sale investments | [1] | 0 | | 0 |
Fair Value, Inputs, Level 3 [Member] | Foreign Government Obligations [Member] | | | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | | | |
Available-for-sale investments | [1] | 0 | | 0 |
Fair Value, Inputs, Level 3 [Member] | Municipal Obligations [Member] | | | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | | | |
Available-for-sale investments | [1] | 0 | | 0 |
Fair Value, Inputs, Level 3 [Member] | Marketable Equity Securities [Member] | | | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | | | |
Available-for-sale investments | [1] | 0 | | 0 |
Fair Value, Inputs, Level 3 [Member] | Asset-backed Securities [Member] | | | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | | | |
Available-for-sale investments | [1] | 0 | | 0 |
Fair Value, Inputs, Level 3 [Member] | Foreign Government Obligations [Member] | | | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | | | |
Cash equivalents | | | | 0 |
Fair Value, Inputs, Level 3 [Member] | Foreign Time Deposits [Member] | | | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | | | |
Cash equivalents | [5] | 0 | | 0 |
Fair Value, Inputs, Level 3 [Member] | US Government Sponsored Agencies [Member] | | | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | | | |
Cash equivalents | | 0 | [5] | 0 |
Fair Value, Inputs, Level 3 [Member] | Money Market Funds [Member] | | | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | | | |
Cash equivalents | [5] | 0 | | 0 |
Fair Value, Inputs, Level 3 [Member] | Commercial Paper [Member] | | | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | | | |
Cash equivalents | [5] | 0 | | 0 |
Fair Value, Inputs, Level 3 [Member] | Cash Equivalents [Member] | | | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | | | |
Cash equivalents | [5] | 0 | | 0 |
Fair Value, Inputs, Level 3 [Member] | Domestic Time Deposit [Member] | | | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | | | |
Cash equivalents | | 0 | | |
Other Current Liabilities [Member] | | | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | | | |
Business Combination, Contingent Consideration, Liability | | 14.5 | | 13.5 |
Short-term Investments [Member] | | | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | | | |
Available-for-sale investments | | 383.2 | | 328.7 |
Short-term Investments [Member] | Interest-bearing Deposits [Member] | | | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | | | |
Available-for-sale investments | | 3.6 | | |
Short-term Investments [Member] | Corporate Debt Securities [Member] | | | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | | | |
Available-for-sale investments | | 179.4 | | 156.9 |
Short-term Investments [Member] | US Government Sponsored Agencies [Member] | | | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | | | |
Available-for-sale investments | | 82.5 | | 74.8 |
Short-term Investments [Member] | Foreign Government Obligations [Member] | | | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | | | |
Available-for-sale investments | | 4.4 | | 4.6 |
Short-term Investments [Member] | Municipal Obligations [Member] | | | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | | | |
Available-for-sale investments | | 15.4 | | 6.4 |
Short-term Investments [Member] | Marketable Equity Securities [Member] | | | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | | | |
Available-for-sale investments | | 35.7 | | 31.4 |
Short-term Investments [Member] | Asset-backed Securities [Member] | | | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | | | |
Available-for-sale investments | | 62.2 | | 54.6 |
Other Investments [Member] | | | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | | | |
Available-for-sale investments | | 732.4 | | 628.9 |
Other Noncurrent Liabilities [Member] | | | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | | | |
Business Combination, Contingent Consideration, Liability | | $ 24 | | $ 5.6 |
| |
[1] | Available-for-sale investments are included in the following accounts in the Consolidated Balance Sheets (in millions): December 31, December 31, 2015 Short-term investments $ 383.2 $ 328.7 Other investments 732.4 628.9 Total $ 1,115.6 $ 957.6 | |
[2] | Forward foreign exchange contracts in an asset position are included in Other current assets in the Consolidated Balance Sheets. | |
[3] | Forward foreign exchange contracts in a liability position are included in Other current liabilities in the Consolidated Balance Sheets. | |
[4] | Contingent consideration liabilities are included in the following accounts in the Consolidated Balance Sheets (in millions): December 31, 2016 December 31, 2015 Other current liabilities $ 14.5 $ 13.5 Other long-term liabilities 24.0 5.6 Total $ 38.5 $ 19.1 | |
[5] | Cash equivalents are included in Cash and cash equivalents in the Consolidated Balance Sheets. | |