XML 53 R41.htm IDEA: XBRL DOCUMENT v3.7.0.1
Fair Value Measurements (Details) - USD ($)
$ in Millions
Mar. 31, 2017
Dec. 31, 2016
Available-for-sale securities:    
Available-for-sale securities $ 3,282.8 $ 2,782.1
Asset-backed Securities [Member]    
Available-for-sale securities:    
Available-for-sale securities 314.2 303.0
Certificates of deposit [Member]    
Available-for-sale securities:    
Available-for-sale securities 57.4 66.1
Commercial paper [Member]    
Available-for-sale securities:    
Available-for-sale securities 125.9 147.7
Corporate debt securities [Member]    
Available-for-sale securities:    
Available-for-sale securities 855.4 844.9
Foreign government debt securities [Member]    
Available-for-sale securities:    
Available-for-sale securities 39.9 33.9
Money market funds [Member]    
Available-for-sale securities:    
Available-for-sale securities 1,117.3 592.2
Mutual funds [Member]    
Available-for-sale securities:    
Available-for-sale securities 8.3 8.0
Trading securities:    
Trading securities 22.6 21.0
Publicly-traded equity securities [Member]    
Available-for-sale securities:    
Available-for-sale securities 6.2 4.6
Time deposits [Member]    
Available-for-sale securities:    
Available-for-sale securities 245.8 264.6
U.S. government agency securities [Member]    
Available-for-sale securities:    
Available-for-sale securities 132.0 126.7
US government securities [Member]    
Available-for-sale securities:    
Available-for-sale securities 380.4 390.4
Fair Value, Measurements, Recurring [Member]    
Trading securities:    
Privately-held debt and redeemable preferred stock securities 42.3 43.7
Derivative assets:    
Total assets measured at fair value 3,352.2 2,847.7
Liabilities measured at fair value:    
Other accrued liabilities (1.2) (4.9)
Total liabilities measured at fair value (1.2) (4.9)
Cash equivalents 1,429.9 907.0
Restricted investments 73.8 71.9
Short-term investments 742.3 752.4
Long-term investments 1,059.4 1,071.8
Prepaid expenses and other current assets 4.5 0.9
Other long-term assets 42.3 43.7
Fair Value, Measurements, Recurring [Member] | Foreign exchange contract [Member]    
Derivative assets:    
Foreign exchange contracts 4.5 0.9
Liabilities measured at fair value:    
Derivative liabilities (1.2) (4.9)
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 1 [Member]    
Trading securities:    
Privately-held debt and redeemable preferred stock securities 0.0 0.0
Derivative assets:    
Total assets measured at fair value 1,491.7 970.8
Liabilities measured at fair value:    
Other accrued liabilities 0.0 0.0
Total liabilities measured at fair value 0.0 0.0
Cash equivalents 1,074.4 549.3
Restricted investments 73.8 71.9
Short-term investments 186.8 178.1
Long-term investments 156.7 171.5
Prepaid expenses and other current assets 0.0 0.0
Other long-term assets 0.0 0.0
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 1 [Member] | Foreign exchange contract [Member]    
Derivative assets:    
Foreign exchange contracts 0.0 0.0
Liabilities measured at fair value:    
Derivative liabilities 0.0 0.0
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 2 [Member]    
Trading securities:    
Privately-held debt and redeemable preferred stock securities 0.0 0.0
Derivative assets:    
Total assets measured at fair value 1,818.2 1,833.2
Liabilities measured at fair value:    
Other accrued liabilities (1.2) (4.9)
Total liabilities measured at fair value (1.2) (4.9)
Cash equivalents 355.5 357.7
Restricted investments 0.0 0.0
Short-term investments 555.5 574.3
Long-term investments 902.7 900.3
Prepaid expenses and other current assets 4.5 0.9
Other long-term assets 0.0 0.0
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 2 [Member] | Foreign exchange contract [Member]    
Derivative assets:    
Foreign exchange contracts 4.5 0.9
Liabilities measured at fair value:    
Derivative liabilities (1.2) (4.9)
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 3 [Member]    
Trading securities:    
Privately-held debt and redeemable preferred stock securities 42.3 43.7
Derivative assets:    
Total assets measured at fair value 42.3 43.7
Liabilities measured at fair value:    
Other accrued liabilities 0.0 0.0
Total liabilities measured at fair value 0.0 0.0
Cash equivalents 0.0 0.0
Restricted investments 0.0 0.0
Short-term investments 0.0 0.0
Long-term investments 0.0 0.0
Prepaid expenses and other current assets 0.0 0.0
Other long-term assets 42.3 43.7
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 3 [Member] | Foreign exchange contract [Member]    
Derivative assets:    
Foreign exchange contracts 0.0 0.0
Liabilities measured at fair value:    
Derivative liabilities 0.0 0.0
Fair Value, Measurements, Recurring [Member] | Asset-backed Securities [Member]    
Available-for-sale securities:    
Available-for-sale securities 314.2 303.0
Fair Value, Measurements, Recurring [Member] | Asset-backed Securities [Member] | Fair Value, Inputs, Level 1 [Member]    
Available-for-sale securities:    
Available-for-sale securities 0.0 0.0
Fair Value, Measurements, Recurring [Member] | Asset-backed Securities [Member] | Fair Value, Inputs, Level 2 [Member]    
Available-for-sale securities:    
Available-for-sale securities 314.2 303.0
Fair Value, Measurements, Recurring [Member] | Asset-backed Securities [Member] | Fair Value, Inputs, Level 3 [Member]    
Available-for-sale securities:    
Available-for-sale securities 0.0 0.0
Fair Value, Measurements, Recurring [Member] | Certificates of deposit [Member]    
Available-for-sale securities:    
Available-for-sale securities 57.4 66.1
Fair Value, Measurements, Recurring [Member] | Certificates of deposit [Member] | Fair Value, Inputs, Level 1 [Member]    
Available-for-sale securities:    
Available-for-sale securities 0.0 0.0
Fair Value, Measurements, Recurring [Member] | Certificates of deposit [Member] | Fair Value, Inputs, Level 2 [Member]    
Available-for-sale securities:    
Available-for-sale securities 57.4 66.1
Fair Value, Measurements, Recurring [Member] | Certificates of deposit [Member] | Fair Value, Inputs, Level 3 [Member]    
Available-for-sale securities:    
Available-for-sale securities 0.0 0.0
Fair Value, Measurements, Recurring [Member] | Commercial paper [Member]    
Available-for-sale securities:    
Available-for-sale securities 125.9 147.7
Fair Value, Measurements, Recurring [Member] | Commercial paper [Member] | Fair Value, Inputs, Level 1 [Member]    
Available-for-sale securities:    
Available-for-sale securities 0.0 0.0
Fair Value, Measurements, Recurring [Member] | Commercial paper [Member] | Fair Value, Inputs, Level 2 [Member]    
Available-for-sale securities:    
Available-for-sale securities 125.9 147.7
Fair Value, Measurements, Recurring [Member] | Commercial paper [Member] | Fair Value, Inputs, Level 3 [Member]    
Available-for-sale securities:    
Available-for-sale securities 0.0 0.0
Fair Value, Measurements, Recurring [Member] | Corporate debt securities [Member]    
Available-for-sale securities:    
Available-for-sale securities 855.4 844.9
Fair Value, Measurements, Recurring [Member] | Corporate debt securities [Member] | Fair Value, Inputs, Level 1 [Member]    
Available-for-sale securities:    
Available-for-sale securities 0.0 0.0
Fair Value, Measurements, Recurring [Member] | Corporate debt securities [Member] | Fair Value, Inputs, Level 2 [Member]    
Available-for-sale securities:    
Available-for-sale securities 855.4 844.9
Fair Value, Measurements, Recurring [Member] | Corporate debt securities [Member] | Fair Value, Inputs, Level 3 [Member]    
Available-for-sale securities:    
Available-for-sale securities 0.0 0.0
Fair Value, Measurements, Recurring [Member] | Foreign government debt securities [Member]    
Available-for-sale securities:    
Available-for-sale securities 39.9 33.9
Fair Value, Measurements, Recurring [Member] | Foreign government debt securities [Member] | Fair Value, Inputs, Level 1 [Member]    
Available-for-sale securities:    
Available-for-sale securities 0.0 0.0
Fair Value, Measurements, Recurring [Member] | Foreign government debt securities [Member] | Fair Value, Inputs, Level 2 [Member]    
Available-for-sale securities:    
Available-for-sale securities 39.9 33.9
Fair Value, Measurements, Recurring [Member] | Foreign government debt securities [Member] | Fair Value, Inputs, Level 3 [Member]    
Available-for-sale securities:    
Available-for-sale securities 0.0 0.0
Fair Value, Measurements, Recurring [Member] | Money market funds [Member]    
Available-for-sale securities:    
Available-for-sale securities 1,117.3 592.2
Fair Value, Measurements, Recurring [Member] | Money market funds [Member] | Fair Value, Inputs, Level 1 [Member]    
Available-for-sale securities:    
Available-for-sale securities 1,117.3 592.2
Fair Value, Measurements, Recurring [Member] | Money market funds [Member] | Fair Value, Inputs, Level 2 [Member]    
Available-for-sale securities:    
Available-for-sale securities 0.0 0.0
Fair Value, Measurements, Recurring [Member] | Money market funds [Member] | Fair Value, Inputs, Level 3 [Member]    
Available-for-sale securities:    
Available-for-sale securities 0.0 0.0
Fair Value, Measurements, Recurring [Member] | Mutual funds [Member]    
Available-for-sale securities:    
Available-for-sale securities 8.3 8.0
Trading securities:    
Trading securities 22.6 21.0
Fair Value, Measurements, Recurring [Member] | Mutual funds [Member] | Fair Value, Inputs, Level 1 [Member]    
Available-for-sale securities:    
Available-for-sale securities 8.3 8.0
Trading securities:    
Trading securities 22.6 21.0
Fair Value, Measurements, Recurring [Member] | Mutual funds [Member] | Fair Value, Inputs, Level 2 [Member]    
Available-for-sale securities:    
Available-for-sale securities 0.0 0.0
Trading securities:    
Trading securities 0.0 0.0
Fair Value, Measurements, Recurring [Member] | Mutual funds [Member] | Fair Value, Inputs, Level 3 [Member]    
Available-for-sale securities:    
Available-for-sale securities 0.0 0.0
Trading securities:    
Trading securities 0.0 0.0
Fair Value, Measurements, Recurring [Member] | Publicly-traded equity securities [Member]    
Available-for-sale securities:    
Available-for-sale securities 6.2 4.6
Fair Value, Measurements, Recurring [Member] | Publicly-traded equity securities [Member] | Fair Value, Inputs, Level 1 [Member]    
Available-for-sale securities:    
Available-for-sale securities 6.2 4.6
Fair Value, Measurements, Recurring [Member] | Publicly-traded equity securities [Member] | Fair Value, Inputs, Level 2 [Member]    
Available-for-sale securities:    
Available-for-sale securities 0.0 0.0
Fair Value, Measurements, Recurring [Member] | Publicly-traded equity securities [Member] | Fair Value, Inputs, Level 3 [Member]    
Available-for-sale securities:    
Available-for-sale securities 0.0 0.0
Fair Value, Measurements, Recurring [Member] | Time deposits [Member]    
Available-for-sale securities:    
Available-for-sale securities 245.8 264.6
Fair Value, Measurements, Recurring [Member] | Time deposits [Member] | Fair Value, Inputs, Level 1 [Member]    
Available-for-sale securities:    
Available-for-sale securities 0.0 0.0
Fair Value, Measurements, Recurring [Member] | Time deposits [Member] | Fair Value, Inputs, Level 2 [Member]    
Available-for-sale securities:    
Available-for-sale securities 245.8 264.6
Fair Value, Measurements, Recurring [Member] | Time deposits [Member] | Fair Value, Inputs, Level 3 [Member]    
Available-for-sale securities:    
Available-for-sale securities 0.0 0.0
Fair Value, Measurements, Recurring [Member] | U.S. government agency securities [Member]    
Available-for-sale securities:    
Available-for-sale securities 132.0 126.7
Fair Value, Measurements, Recurring [Member] | U.S. government agency securities [Member] | Fair Value, Inputs, Level 1 [Member]    
Available-for-sale securities:    
Available-for-sale securities 0.0 0.0
Fair Value, Measurements, Recurring [Member] | U.S. government agency securities [Member] | Fair Value, Inputs, Level 2 [Member]    
Available-for-sale securities:    
Available-for-sale securities 132.0 126.7
Fair Value, Measurements, Recurring [Member] | U.S. government agency securities [Member] | Fair Value, Inputs, Level 3 [Member]    
Available-for-sale securities:    
Available-for-sale securities 0.0 0.0
Fair Value, Measurements, Recurring [Member] | US government securities [Member]    
Available-for-sale securities:    
Available-for-sale securities 380.4 390.4
Fair Value, Measurements, Recurring [Member] | US government securities [Member] | Fair Value, Inputs, Level 1 [Member]    
Available-for-sale securities:    
Available-for-sale securities 337.3 345.0
Fair Value, Measurements, Recurring [Member] | US government securities [Member] | Fair Value, Inputs, Level 2 [Member]    
Available-for-sale securities:    
Available-for-sale securities 43.1 45.4
Fair Value, Measurements, Recurring [Member] | US government securities [Member] | Fair Value, Inputs, Level 3 [Member]    
Available-for-sale securities:    
Available-for-sale securities 0.0 0.0
Fair Value, Measurements, Recurring [Member] | Available-for-sale securities [Member]    
Available-for-sale securities:    
Available-for-sale securities 3,282.8 2,782.1
Fair Value, Measurements, Recurring [Member] | Available-for-sale securities [Member] | Fair Value, Inputs, Level 1 [Member]    
Available-for-sale securities:    
Available-for-sale securities 1,469.1 949.8
Fair Value, Measurements, Recurring [Member] | Available-for-sale securities [Member] | Fair Value, Inputs, Level 2 [Member]    
Available-for-sale securities:    
Available-for-sale securities 1,813.7 1,832.3
Fair Value, Measurements, Recurring [Member] | Available-for-sale securities [Member] | Fair Value, Inputs, Level 3 [Member]    
Available-for-sale securities:    
Available-for-sale securities $ 0.0 $ 0.0