Financial Instruments (Details) € in Millions, ¥ in Millions, £ in Millions, SFr in Millions, $ in Millions | 1 Months Ended | 3 Months Ended | 9 Months Ended | | | | | | |
Jun. 30, 2015USD ($) | Feb. 28, 2015USD ($) | Sep. 30, 2016USD ($) | Mar. 31, 2016USD ($) | Sep. 30, 2015USD ($) | Jun. 30, 2015USD ($) | Sep. 30, 2016USD ($) | Sep. 30, 2015USD ($) | Sep. 30, 2016EUR (€) | Sep. 30, 2016CHF (SFr) | Sep. 30, 2016GBP (£) | Sep. 30, 2016USD ($) | Sep. 30, 2016JPY (¥) | May 31, 2016CHF (SFr) | Dec. 31, 2015USD ($) | Jun. 30, 2015EUR (€) | Jun. 02, 2015USD ($) | Mar. 31, 2015USD ($) |
Transfer of Financial Assets Accounted for as Sales, Amount Derecognized | | | | | | | | | | | | | $ 685.9 | | | $ 670.6 | | | |
Interest Expense | | | | $ 47.2 | | $ 39.3 | | $ 133.8 | $ 117 | | | | | | | | | | |
Available-for-sale Debt Securities, Accumulated Gross Unrealized Gain, before Tax | | | | | | | | | | | | | 138.8 | | | 68 | | | |
Available-for-sale Debt Securities, Accumulated Gross Unrealized Loss, before Tax | | | | | | | | | | | | | 7.6 | | | 52.5 | | | |
Available-for-sale Securities, Gross Realized Gains | | | | 12.8 | | 151 | | 18 | 253.3 | | | | | | | | | | |
Repayments of Long-term Debt | | | | | | | | 0.2 | 1,950.6 | | | | | | | | | | |
Available-for-sale Securities, Debt Securities | | | | | | | | | | | | | $ 4,860.5 | | | | | | |
Proceeds from issuance of long-term debt | | | | | | | | 1,206.6 | 4,454.6 | | | | | | | | | | |
Extinguishment of Debt, Amount | | | | | | | | | 1,650 | | | | | | | | | | |
Debt extinguishment loss | | | | $ 0 | | 0 | $ 166.7 | $ 0 | 166.7 | | | | | | | | | | |
Available-for-sale, Securities in Unrealized Loss Positions, Qualitative Disclosure, Other, Percentage of Nonperforming Assets | | | | | | | | 90.00% | | | | | | | | | | | |
Maximum Remaining Maturity of Foreign Currency Derivatives | | | | 30 days | | | | | | | | | | | | | | | |
Description of Derivative Activity Volume Percent | | | | | | | | | | 30.00% | 30.00% | 30.00% | 30.00% | 30.00% | | | | | |
Interest Rate Cash Flow Hedge Gain (Loss) to be Reclassified During Next 12 Months, Net | | | | | | | | | | | | | $ 15.2 | | | | | | |
Business Combination, Contingent Consideration Arrangements, Change in Amount of Contingent Consideration, Liability | | | | | | | | $ 171.8 | | | | | | | | | | | |
Available-for-sale Securities, Debt Maturities, Year Two Through Five, Fair Value | | | | | | | | | | | | | 3,716.5 | | | | | | |
Available-for-sale Securities, Continuous Unrealized Gain Position, Fair Value | | | | | | | | | | | | | 3,570.3 | | | 764.5 | | | |
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value | | | | | | | | | | | | | 1,266.2 | | | 2,933.4 | | | |
Other than Temporary Impairment Losses, Investments | | | | $ 11.4 | | 31.5 | | 53 | 41.3 | | | | | | | | | | |
Proceeds from Sale and Maturity of Available-for-sale Securities | | | | 926.3 | | 621.9 | | 2,503.4 | 3,491.8 | | | | | | | | | | |
Available-for-sale Securities, Gross Realized Losses | | | | 1.3 | | 1.5 | | 11.7 | 3.9 | | | | | | | | | | |
Available-for-sale Securities, Noncurrent [Abstract] | | | | | | | | | | | | | | | | | | | |
Available-for-sale Securities, Debt Maturities, Next Twelve Months, Fair Value | | | | | | | | | | | | | 737.8 | | | | | | |
Available-for-sale Securities, Debt Maturities, Year Six Through Ten, Fair Value | | | | | | | | | | | | | 171.8 | | | | | | |
Available-for-sale Securities, Debt Maturities, after Ten Years, Fair Value | | | | | | | | | | | | | 234.4 | | | | | | |
Net payments for terminations of interest rate swaps | | | | | | | | (3.4) | (186.1) | | | | | | | | | | |
Investment Income, Interest | | | | 29.1 | | 21.2 | | 76.8 | 63.2 | | | | | | | | | | |
Foreign Currency Transaction Gain (Loss), Realized | | | | 0 | $ (203.9) | 0 | | (203.9) | 0 | | | | | | | | | | |
Other Nonoperating Income (Expense) | | | | 45.3 | | 104.6 | | 160.3 | 276.4 | | | | | | | | | | |
Nonoperating Income (Expense) | | | | 27.2 | | 86.5 | | (100.6) | 55.9 | | | | | | | | | | |
Maturity Date, 2018 [Member] | | | | | | | | | | | | | | | | | | | |
Long-term Debt | | | | | | | | | | | | | | | SFr (200) | | | | $ (600) |
Debt Instrument, Interest Rate, Stated Percentage | | | | | | | | | | | | | | | 0.00% | | | | 1.25% |
Maturity Date, 2024 [Member] | | | | | | | | | | | | | | | | | | | |
Long-term Debt | SFr | | | | | | | | | | | | | | | SFr (600) | | | | |
Debt Instrument, Interest Rate, Stated Percentage | | | | | | | | | | | | | | | 0.15% | | | | |
Maturity Date, 2028 [Member] | | | | | | | | | | | | | | | | | | | |
Long-term Debt | SFr | | | | | | | | | | | | | | | SFr (400) | | | | |
Debt Instrument, Interest Rate, Stated Percentage | | | | | | | | | | | | | | | 0.45% | | | | |
Maturity Date, 2025 [Member] | | | | | | | | | | | | | | | | | | | |
Long-term Debt | | | | | | | | | | | | | | | | | | | $ (800) |
Debt Instrument, Interest Rate, Stated Percentage | | | | | | | | | | | | | | | | | | | 2.75% |
Maturity Date, 2045 [Member] | | | | | | | | | | | | | | | | | | | |
Long-term Debt | | | | | | | | | | | | | | | | | | | $ (800) |
Debt Instrument, Interest Rate, Stated Percentage | | | | | | | | | | | | | | | | | | | 3.70% |
Maturity Date, 2022 [Member] | | | | | | | | | | | | | | | | | | | |
Long-term Debt | € | | | | | | | | | | | | | | | | | € (600) | | |
Debt Instrument, Interest Rate, Stated Percentage | | | | | | | | | | | | | | | | | 1.00% | | |
Maturity Date, 2026 [Member] | | | | | | | | | | | | | | | | | | | |
Long-term Debt | € | | | | | | | | | | | | | | | | | € (750) | | |
Debt Instrument, Interest Rate, Stated Percentage | | | | | | | | | | | | | | | | | 1.63% | | |
Maturity Date, 2030 [Member] | | | | | | | | | | | | | | | | | | | |
Long-term Debt | € | | | | | | | | | | | | | | | | | € (750) | | |
Debt Instrument, Interest Rate, Stated Percentage | | | | | | | | | | | | | | | | | 2.13% | | |
Euro-Denominated Debt Issuance [Member] | | | | | | | | | | | | | | | | | | | |
Proceeds from issuance of long-term debt | | | | | | | | | 2,270 | | | | | | | | | | |
Swiss Franc-Denominated Debt Issuance [Member] | | | | | | | | | | | | | | | | | | | |
Proceeds from issuance of long-term debt | | | | | | | | 1,210 | | | | | | | | | | | |
Net Investment Hedging [Member] | | | | | | | | | | | | | | | | | | | |
Derivative Instruments, Gain (Loss) Recognized in Other Comprehensive Income (Loss), Effective Portion, Net | | | | (37) | | (16.8) | | (80) | (50.6) | | | | | | | | | | |
Foreign Currency Denominated Debt [Member] | | | | | | | | | | | | | | | | | | | |
Long-term Debt | | | | | | | | | | | | | (3,550) | | | (2,270) | | | |
Cross Currency Interest Rate Contract [Member] | Net Investment Hedging [Member] | | | | | | | | | | | | | | | | | | | |
Derivative Instruments, Gain (Loss) Recognized in Other Comprehensive Income (Loss), Effective Portion, Net | | | | (4.1) | | 0 | | 2.2 | 0 | | | | | | | | | | |
Interest Rate Swap [Member] | | | | | | | | | | | | | | | | | | | |
Derivative Instruments, Gain (Loss) Recognized in Other Comprehensive Income (Loss), Effective Portion, Net | | | | 0 | | 0 | | (3.4) | (56.7) | | | | | | | | | | |
Buy British pound Sell euro [Member] | | | | | | | | | | | | | | | | | | | |
Available-for-sale Securities, Noncurrent [Abstract] | | | | | | | | | | | | | | | | | | | |
Derivative Liability, Notional Amount | £ | | | | | | | | | | | | £ 192.7 | | | | | | | |
Derivative Asset, Notional Amount | € | | | | | | | | | | € 225.2 | | | | | | | | | |
Buy US dollar Sell euro [Member] | | | | | | | | | | | | | | | | | | | |
Available-for-sale Securities, Noncurrent [Abstract] | | | | | | | | | | | | | | | | | | | |
Derivative Liability, Notional Amount | | | | | | | | | | | | | 946.7 | | | | | | |
Derivative Asset, Notional Amount | € | | | | | | | | | | 844.8 | | | | | | | | | |
Buy euro Sell US dollar [Member] | | | | | | | | | | | | | | | | | | | |
Available-for-sale Securities, Noncurrent [Abstract] | | | | | | | | | | | | | | | | | | | |
Derivative Liability, Notional Amount | € | | | | | | | | | | € 1,790 | | | | | | | | | |
Derivative Asset, Notional Amount | | | | | | | | | | | | | 2,000 | | | | | | |
Buy US dollar Sell Japanese Yen [Member] | | | | | | | | | | | | | | | | | | | |
Available-for-sale Securities, Noncurrent [Abstract] | | | | | | | | | | | | | | | | | | | |
Derivative Liability, Notional Amount | | | | | | | | | | | | | 742.5 | | | | | | |
Derivative Asset, Notional Amount | ¥ | | | | | | | | | | | | | | ¥ 75,420 | | | | | |
Buy US dollar Sell British pound [Member] | | | | | | | | | | | | | | | | | | | |
Available-for-sale Securities, Noncurrent [Abstract] | | | | | | | | | | | | | | | | | | | |
Derivative Liability, Notional Amount | | | | | | | | | | | | | 266.9 | | | | | | |
Derivative Asset, Notional Amount | £ | | | | | | | | | | | | £ 204.2 | | | | | | | |
Buy Swiss francs Sell US dollar [Member] | | | | | | | | | | | | | | | | | | | |
Available-for-sale Securities, Noncurrent [Abstract] | | | | | | | | | | | | | | | | | | | |
Derivative Liability, Notional Amount | SFr | | | | | | | | | | | SFr 192.8 | | | | | | | | |
Derivative Asset, Notional Amount | | | | | | | | | | | | | 196.9 | | | | | | |
Equity Contract [Member] | | | | | | | | | | | | | | | | | | | |
Derivative Instruments, Gain (Loss) Recognized in Other Comprehensive Income (Loss), Effective Portion, Net | | | | 0 | | | | 0 | | | | | | | | | | | |
Hedged Fixed Rate Debt [Member] | Designated as Hedging Instrument [Member] | | | | | | | | | | | | | | | | | | | |
Change in Unrealized Gain (Loss) on Hedged Item in Fair Value Hedge | | | | (18.8) | | 66.1 | | 92.4 | 25.8 | | | | | | | | | | |
Interest Rate Contract [Member] | | | | | | | | | | | | | | | | | | | |
Available-for-sale Securities, Noncurrent [Abstract] | | | | | | | | | | | | | | | | | | | |
Derivative Liability, Notional Amount | | | $ 1,350 | | | | | | | | | | | | | | | | |
Derivative Asset, Notional Amount | | | | | | | | | | | | | | | | | | $ 876 | |
Net payments for terminations of interest rate swaps | | $ (20.2) | $ (206.3) | | | | | | | | | | | | | | | | |
Interest Rate Contract [Member] | Designated as Hedging Instrument [Member] | | | | | | | | | | | | | | | | | | | |
Change in Unrealized Gain (Loss) on Fair Value Hedging Instruments | | | | 18.8 | | (66.1) | | (92.4) | (25.8) | | | | | | | | | | |
Derivative Instruments, Loss Reclassified from Accumulated OCI into Income, Effective Portion | | | | 3.8 | | 3.7 | | 11.2 | 10 | | | | | | | | | | |
Foreign Exchange Contract [Member] | Not Designated as Hedging Instrument [Member] | | | | | | | | | | | | | | | | | | | |
Gain (Loss) on Foreign Currency Derivative Instruments Not Designated as Hedging Instruments | | | | 1.4 | | (14.9) | | 105.6 | 7.2 | | | | | | | | | | |
Foreign Exchange Contract [Member] | Net Investment Hedging [Member] | | | | | | | | | | | | | | | | | | | |
Derivative Instruments, Gain (Loss) Recognized in Other Comprehensive Income (Loss), Effective Portion, Net | | | | $ 0 | | $ 0 | | $ 31.9 | 0 | | | | | | | | | | |
Estimate of Fair Value Measurement [Member] | | | | | | | | | | | | | | | | | | | |
Cash and Cash Equivalents, Fair Value Disclosure | | | | | | | | | | | | | 1,615.9 | | | 1,644.4 | | | |
Long-term Debt | | | | | | | | | | | | | (10,064.6) | | | (8,172) | | | |
Estimate of Fair Value Measurement [Member] | Not Designated as Hedging Instrument [Member] | | | | | | | | | | | | | | | | | | | |
Business Combination, Contingent Consideration, Liability, Current | [1] | | | | | | | | | | | | (235) | | | (243.7) | | | |
Business Combination, Contingent Consideration, Liability, Noncurrent | [1] | | | | | | | | | | | | (296.2) | | | (427.2) | | | |
Estimate of Fair Value Measurement [Member] | Fair Value, Inputs, Level 1 [Member] | | | | | | | | | | | | | | | | | | | |
Cash and Cash Equivalents, Fair Value Disclosure | | | | | | | | | | | | | 1,614.8 | | | 1,637 | | | |
Long-term Debt | | | | | | | | | | | | | 0 | | | 0 | | | |
Estimate of Fair Value Measurement [Member] | Fair Value, Inputs, Level 1 [Member] | Not Designated as Hedging Instrument [Member] | | | | | | | | | | | | | | | | | | | |
Business Combination, Contingent Consideration, Liability, Current | [1] | | | | | | | | | | | | 0 | | | 0 | | | |
Business Combination, Contingent Consideration, Liability, Noncurrent | [1] | | | | | | | | | | | | 0 | | | 0 | | | |
Estimate of Fair Value Measurement [Member] | Fair Value, Inputs, Level 2 [Member] | | | | | | | | | | | | | | | | | | | |
Cash and Cash Equivalents, Fair Value Disclosure | | | | | | | | | | | | | 1.1 | | | 7.4 | | | |
Long-term Debt | | | | | | | | | | | | | (10,064.6) | | | (8,172) | | | |
Estimate of Fair Value Measurement [Member] | Fair Value, Inputs, Level 2 [Member] | Not Designated as Hedging Instrument [Member] | | | | | | | | | | | | | | | | | | | |
Business Combination, Contingent Consideration, Liability, Current | [1] | | | | | | | | | | | | 0 | | | 0 | | | |
Business Combination, Contingent Consideration, Liability, Noncurrent | [1] | | | | | | | | | | | | 0 | | | 0 | | | |
Estimate of Fair Value Measurement [Member] | Fair Value, Inputs, Level 3 [Member] | | | | | | | | | | | | | | | | | | | |
Cash and Cash Equivalents, Fair Value Disclosure | | | | | | | | | | | | | 0 | | | 0 | | | |
Long-term Debt | | | | | | | | | | | | | 0 | | | 0 | | | |
Estimate of Fair Value Measurement [Member] | Fair Value, Inputs, Level 3 [Member] | Not Designated as Hedging Instrument [Member] | | | | | | | | | | | | | | | | | | | |
Business Combination, Contingent Consideration, Liability, Current | [1] | | | | | | | | | | | | (235) | | | (243.7) | | | |
Business Combination, Contingent Consideration, Liability, Noncurrent | [1] | | | | | | | | | | | | (296.2) | | | (427.2) | | | |
Estimate of Fair Value Measurement [Member] | Corporate Debt Securities [Member] | | | | | | | | | | | | | | | | | | | |
Available-for-sale Securities, Current [Abstract] | | | | | | | | | | | | | | | | | | | |
Available-for-sale Securities, Debt Securities, Current | | | | | | | | | | | | | 648.8 | | | 625.8 | | | |
Available-for-sale Securities, Noncurrent [Abstract] | | | | | | | | | | | | | | | | | | | |
Available-for-sale Securities, Debt Securities, Noncurrent | | | | | | | | | | | | | 3,104.7 | | | 1,962.6 | | | |
Estimate of Fair Value Measurement [Member] | Corporate Debt Securities [Member] | Fair Value, Inputs, Level 1 [Member] | | | | | | | | | | | | | | | | | | | |
Available-for-sale Securities, Current [Abstract] | | | | | | | | | | | | | | | | | | | |
Available-for-sale Securities, Debt Securities, Current | | | | | | | | | | | | | 0 | | | 0 | | | |
Available-for-sale Securities, Noncurrent [Abstract] | | | | | | | | | | | | | | | | | | | |
Available-for-sale Securities, Debt Securities, Noncurrent | | | | | | | | | | | | | 0 | | | 0 | | | |
Estimate of Fair Value Measurement [Member] | Corporate Debt Securities [Member] | Fair Value, Inputs, Level 2 [Member] | | | | | | | | | | | | | | | | | | | |
Available-for-sale Securities, Current [Abstract] | | | | | | | | | | | | | | | | | | | |
Available-for-sale Securities, Debt Securities, Current | | | | | | | | | | | | | 648.8 | | | 625.8 | | | |
Available-for-sale Securities, Noncurrent [Abstract] | | | | | | | | | | | | | | | | | | | |
Available-for-sale Securities, Debt Securities, Noncurrent | | | | | | | | | | | | | 3,104.7 | | | 1,962.6 | | | |
Estimate of Fair Value Measurement [Member] | Corporate Debt Securities [Member] | Fair Value, Inputs, Level 3 [Member] | | | | | | | | | | | | | | | | | | | |
Available-for-sale Securities, Current [Abstract] | | | | | | | | | | | | | | | | | | | |
Available-for-sale Securities, Debt Securities, Current | | | | | | | | | | | | | 0 | | | 0 | | | |
Available-for-sale Securities, Noncurrent [Abstract] | | | | | | | | | | | | | | | | | | | |
Available-for-sale Securities, Debt Securities, Noncurrent | | | | | | | | | | | | | 0 | | | 0 | | | |
Estimate of Fair Value Measurement [Member] | US Government Agencies Debt Securities [Member] | | | | | | | | | | | | | | | | | | | |
Available-for-sale Securities, Current [Abstract] | | | | | | | | | | | | | | | | | | | |
Available-for-sale Securities, Debt Securities, Current | | | | | | | | | | | | | 81 | | | 153.2 | | | |
Available-for-sale Securities, Noncurrent [Abstract] | | | | | | | | | | | | | | | | | | | |
Available-for-sale Securities, Debt Securities, Noncurrent | | | | | | | | | | | | | 344 | | | 284.5 | | | |
Estimate of Fair Value Measurement [Member] | US Government Agencies Debt Securities [Member] | Fair Value, Inputs, Level 1 [Member] | | | | | | | | | | | | | | | | | | | |
Available-for-sale Securities, Current [Abstract] | | | | | | | | | | | | | | | | | | | |
Available-for-sale Securities, Debt Securities, Current | | | | | | | | | | | | | 81 | | | 153.2 | | | |
Available-for-sale Securities, Noncurrent [Abstract] | | | | | | | | | | | | | | | | | | | |
Available-for-sale Securities, Debt Securities, Noncurrent | | | | | | | | | | | | | 344 | | | 283.5 | | | |
Estimate of Fair Value Measurement [Member] | US Government Agencies Debt Securities [Member] | Fair Value, Inputs, Level 2 [Member] | | | | | | | | | | | | | | | | | | | |
Available-for-sale Securities, Current [Abstract] | | | | | | | | | | | | | | | | | | | |
Available-for-sale Securities, Debt Securities, Current | | | | | | | | | | | | | 0 | | | 0 | | | |
Available-for-sale Securities, Noncurrent [Abstract] | | | | | | | | | | | | | | | | | | | |
Available-for-sale Securities, Debt Securities, Noncurrent | | | | | | | | | | | | | 0 | | | 1 | | | |
Estimate of Fair Value Measurement [Member] | US Government Agencies Debt Securities [Member] | Fair Value, Inputs, Level 3 [Member] | | | | | | | | | | | | | | | | | | | |
Available-for-sale Securities, Current [Abstract] | | | | | | | | | | | | | | | | | | | |
Available-for-sale Securities, Debt Securities, Current | | | | | | | | | | | | | 0 | | | 0 | | | |
Available-for-sale Securities, Noncurrent [Abstract] | | | | | | | | | | | | | | | | | | | |
Available-for-sale Securities, Debt Securities, Noncurrent | | | | | | | | | | | | | 0 | | | 0 | | | |
Estimate of Fair Value Measurement [Member] | Other Debt Obligations [Member] | | | | | | | | | | | | | | | | | | | |
Available-for-sale Securities, Current [Abstract] | | | | | | | | | | | | | | | | | | | |
Available-for-sale Securities, Debt Securities, Current | | | | | | | | | | | | | 2.7 | | | 3.1 | | | |
Available-for-sale Securities, Noncurrent [Abstract] | | | | | | | | | | | | | | | | | | | |
Available-for-sale Securities, Debt Securities, Noncurrent | | | | | | | | | | | | | 170.1 | | | 137.1 | | | |
Estimate of Fair Value Measurement [Member] | Other Debt Obligations [Member] | Fair Value, Inputs, Level 1 [Member] | | | | | | | | | | | | | | | | | | | |
Available-for-sale Securities, Current [Abstract] | | | | | | | | | | | | | | | | | | | |
Available-for-sale Securities, Debt Securities, Current | | | | | | | | | | | | | 0 | | | 0 | | | |
Available-for-sale Securities, Noncurrent [Abstract] | | | | | | | | | | | | | | | | | | | |
Available-for-sale Securities, Debt Securities, Noncurrent | | | | | | | | | | | | | 0 | | | 0 | | | |
Estimate of Fair Value Measurement [Member] | Other Debt Obligations [Member] | Fair Value, Inputs, Level 2 [Member] | | | | | | | | | | | | | | | | | | | |
Available-for-sale Securities, Current [Abstract] | | | | | | | | | | | | | | | | | | | |
Available-for-sale Securities, Debt Securities, Current | | | | | | | | | | | | | 2.7 | | | 3.1 | | | |
Available-for-sale Securities, Noncurrent [Abstract] | | | | | | | | | | | | | | | | | | | |
Available-for-sale Securities, Debt Securities, Noncurrent | | | | | | | | | | | | | 3.4 | | | 4.1 | | | |
Estimate of Fair Value Measurement [Member] | Other Debt Obligations [Member] | Fair Value, Inputs, Level 3 [Member] | | | | | | | | | | | | | | | | | | | |
Available-for-sale Securities, Current [Abstract] | | | | | | | | | | | | | | | | | | | |
Available-for-sale Securities, Debt Securities, Current | | | | | | | | | | | | | 0 | | | 0 | | | |
Available-for-sale Securities, Noncurrent [Abstract] | | | | | | | | | | | | | | | | | | | |
Available-for-sale Securities, Debt Securities, Noncurrent | | | | | | | | | | | | | 166.7 | | | 133 | | | |
Estimate of Fair Value Measurement [Member] | Collateralized Mortgage Backed Securities [Member] | | | | | | | | | | | | | | | | | | | |
Available-for-sale Securities, Noncurrent [Abstract] | | | | | | | | | | | | | | | | | | | |
Available-for-sale Securities, Debt Securities, Noncurrent | | | | | | | | | | | | | 195.8 | | | 153.3 | | | |
Estimate of Fair Value Measurement [Member] | Collateralized Mortgage Backed Securities [Member] | Fair Value, Inputs, Level 1 [Member] | | | | | | | | | | | | | | | | | | | |
Available-for-sale Securities, Noncurrent [Abstract] | | | | | | | | | | | | | | | | | | | |
Available-for-sale Securities, Debt Securities, Noncurrent | | | | | | | | | | | | | 0 | | | 0 | | | |
Estimate of Fair Value Measurement [Member] | Collateralized Mortgage Backed Securities [Member] | Fair Value, Inputs, Level 2 [Member] | | | | | | | | | | | | | | | | | | | |
Available-for-sale Securities, Noncurrent [Abstract] | | | | | | | | | | | | | | | | | | | |
Available-for-sale Securities, Debt Securities, Noncurrent | | | | | | | | | | | | | 195.8 | | | 153.3 | | | |
Estimate of Fair Value Measurement [Member] | Collateralized Mortgage Backed Securities [Member] | Fair Value, Inputs, Level 3 [Member] | | | | | | | | | | | | | | | | | | | |
Available-for-sale Securities, Noncurrent [Abstract] | | | | | | | | | | | | | | | | | | | |
Available-for-sale Securities, Debt Securities, Noncurrent | | | | | | | | | | | | | 0 | | | 0 | | | |
Estimate of Fair Value Measurement [Member] | Asset-backed Securities [Member] | | | | | | | | | | | | | | | | | | | |
Available-for-sale Securities, Current [Abstract] | | | | | | | | | | | | | | | | | | | |
Available-for-sale Securities, Debt Securities, Current | | | | | | | | | | | | | 5.3 | | | 3.3 | | | |
Available-for-sale Securities, Noncurrent [Abstract] | | | | | | | | | | | | | | | | | | | |
Available-for-sale Securities, Debt Securities, Noncurrent | | | | | | | | | | | | | 474.8 | | | 441.9 | | | |
Estimate of Fair Value Measurement [Member] | Asset-backed Securities [Member] | Fair Value, Inputs, Level 1 [Member] | | | | | | | | | | | | | | | | | | | |
Available-for-sale Securities, Current [Abstract] | | | | | | | | | | | | | | | | | | | |
Available-for-sale Securities, Debt Securities, Current | | | | | | | | | | | | | 0 | | | 0 | | | |
Available-for-sale Securities, Noncurrent [Abstract] | | | | | | | | | | | | | | | | | | | |
Available-for-sale Securities, Debt Securities, Noncurrent | | | | | | | | | | | | | 0 | | | 0 | | | |
Estimate of Fair Value Measurement [Member] | Asset-backed Securities [Member] | Fair Value, Inputs, Level 2 [Member] | | | | | | | | | | | | | | | | | | | |
Available-for-sale Securities, Current [Abstract] | | | | | | | | | | | | | | | | | | | |
Available-for-sale Securities, Debt Securities, Current | | | | | | | | | | | | | 5.3 | | | 3.3 | | | |
Available-for-sale Securities, Noncurrent [Abstract] | | | | | | | | | | | | | | | | | | | |
Available-for-sale Securities, Debt Securities, Noncurrent | | | | | | | | | | | | | 474.8 | | | 441.9 | | | |
Estimate of Fair Value Measurement [Member] | Asset-backed Securities [Member] | Fair Value, Inputs, Level 3 [Member] | | | | | | | | | | | | | | | | | | | |
Available-for-sale Securities, Current [Abstract] | | | | | | | | | | | | | | | | | | | |
Available-for-sale Securities, Debt Securities, Current | | | | | | | | | | | | | 0 | | | 0 | | | |
Available-for-sale Securities, Noncurrent [Abstract] | | | | | | | | | | | | | | | | | | | |
Available-for-sale Securities, Debt Securities, Noncurrent | | | | | | | | | | | | | 0 | | | 0 | | | |
Estimate of Fair Value Measurement [Member] | Equity Securities, US [Member] | | | | | | | | | | | | | | | | | | | |
Available-for-sale Securities, Noncurrent [Abstract] | | | | | | | | | | | | | | | | | | | |
Available-for-sale Securities, Equity Securities, Noncurrent | | | | | | | | | | | | | 178.5 | | | 128.9 | | | |
Estimate of Fair Value Measurement [Member] | Equity Securities, US [Member] | Fair Value, Inputs, Level 1 [Member] | | | | | | | | | | | | | | | | | | | |
Available-for-sale Securities, Noncurrent [Abstract] | | | | | | | | | | | | | | | | | | | |
Available-for-sale Securities, Equity Securities, Noncurrent | | | | | | | | | | | | | 178.5 | | | 128.9 | | | |
Estimate of Fair Value Measurement [Member] | Equity Securities, US [Member] | Fair Value, Inputs, Level 2 [Member] | | | | | | | | | | | | | | | | | | | |
Available-for-sale Securities, Noncurrent [Abstract] | | | | | | | | | | | | | | | | | | | |
Available-for-sale Securities, Equity Securities, Noncurrent | | | | | | | | | | | | | 0 | | | 0 | | | |
Estimate of Fair Value Measurement [Member] | Equity Securities, US [Member] | Fair Value, Inputs, Level 3 [Member] | | | | | | | | | | | | | | | | | | | |
Available-for-sale Securities, Noncurrent [Abstract] | | | | | | | | | | | | | | | | | | | |
Available-for-sale Securities, Equity Securities, Noncurrent | | | | | | | | | | | | | 0 | | | 0 | | | |
Estimate of Fair Value Measurement [Member] | Cross Currency Interest Rate Contract [Member] | Designated as Hedging Instrument [Member] | | | | | | | | | | | | | | | | | | | |
Derivative Assets, Noncurrent | | | | | | | | | | | | | 1.6 | | | | | | |
Estimate of Fair Value Measurement [Member] | Cross Currency Interest Rate Contract [Member] | Fair Value, Inputs, Level 1 [Member] | Designated as Hedging Instrument [Member] | | | | | | | | | | | | | | | | | | | |
Derivative Assets, Noncurrent | | | | | | | | | | | | | 0 | | | | | | |
Estimate of Fair Value Measurement [Member] | Cross Currency Interest Rate Contract [Member] | Fair Value, Inputs, Level 2 [Member] | Designated as Hedging Instrument [Member] | | | | | | | | | | | | | | | | | | | |
Derivative Assets, Noncurrent | | | | | | | | | | | | | 1.6 | | | | | | |
Estimate of Fair Value Measurement [Member] | Cross Currency Interest Rate Contract [Member] | Fair Value, Inputs, Level 3 [Member] | Designated as Hedging Instrument [Member] | | | | | | | | | | | | | | | | | | | |
Derivative Assets, Noncurrent | | | | | | | | | | | | | 0 | | | | | | |
Estimate of Fair Value Measurement [Member] | Interest Rate Contract [Member] | Designated as Hedging Instrument [Member] | | | | | | | | | | | | | | | | | | | |
Derivative Assets, Current | | | | | | | | | | | | | 5.8 | | | | | | |
Derivative Assets, Noncurrent | | | | | | | | | | | | | 156.2 | | | 70.1 | | | |
Derivative Liabilities, Noncurrent | | | | | | | | | | | | | | | | (0.4) | | | |
Estimate of Fair Value Measurement [Member] | Interest Rate Contract [Member] | Fair Value, Inputs, Level 1 [Member] | Designated as Hedging Instrument [Member] | | | | | | | | | | | | | | | | | | | |
Derivative Assets, Current | | | | | | | | | | | | | 0 | | | | | | |
Derivative Assets, Noncurrent | | | | | | | | | | | | | 0 | | | 0 | | | |
Derivative Liabilities, Noncurrent | | | | | | | | | | | | | | | | 0 | | | |
Estimate of Fair Value Measurement [Member] | Interest Rate Contract [Member] | Fair Value, Inputs, Level 2 [Member] | Designated as Hedging Instrument [Member] | | | | | | | | | | | | | | | | | | | |
Derivative Assets, Current | | | | | | | | | | | | | 5.8 | | | | | | |
Derivative Assets, Noncurrent | | | | | | | | | | | | | 156.2 | | | 70.1 | | | |
Derivative Liabilities, Noncurrent | | | | | | | | | | | | | | | | (0.4) | | | |
Estimate of Fair Value Measurement [Member] | Interest Rate Contract [Member] | Fair Value, Inputs, Level 3 [Member] | Designated as Hedging Instrument [Member] | | | | | | | | | | | | | | | | | | | |
Derivative Assets, Current | | | | | | | | | | | | | 0 | | | | | | |
Derivative Assets, Noncurrent | | | | | | | | | | | | | 0 | | | 0 | | | |
Derivative Liabilities, Noncurrent | | | | | | | | | | | | | | | | 0 | | | |
Estimate of Fair Value Measurement [Member] | Foreign Exchange Contract [Member] | Not Designated as Hedging Instrument [Member] | | | | | | | | | | | | | | | | | | | |
Derivative Assets, Current | | | | | | | | | | | | | 8.4 | | | 13.1 | | | |
Derivative Liabilities, Current | | | | | | | | | | | | | (5.5) | | | (17.3) | | | |
Estimate of Fair Value Measurement [Member] | Foreign Exchange Contract [Member] | Fair Value, Inputs, Level 1 [Member] | Not Designated as Hedging Instrument [Member] | | | | | | | | | | | | | | | | | | | |
Derivative Assets, Current | | | | | | | | | | | | | 0 | | | 0 | | | |
Derivative Liabilities, Current | | | | | | | | | | | | | 0 | | | 0 | | | |
Estimate of Fair Value Measurement [Member] | Foreign Exchange Contract [Member] | Fair Value, Inputs, Level 2 [Member] | Not Designated as Hedging Instrument [Member] | | | | | | | | | | | | | | | | | | | |
Derivative Assets, Current | | | | | | | | | | | | | 8.4 | | | 13.1 | | | |
Derivative Liabilities, Current | | | | | | | | | | | | | (5.5) | | | (17.3) | | | |
Estimate of Fair Value Measurement [Member] | Foreign Exchange Contract [Member] | Fair Value, Inputs, Level 3 [Member] | Not Designated as Hedging Instrument [Member] | | | | | | | | | | | | | | | | | | | |
Derivative Assets, Current | | | | | | | | | | | | | 0 | | | 0 | | | |
Derivative Liabilities, Current | | | | | | | | | | | | | 0 | | | 0 | | | |
Reported Value Measurement [Member] | | | | | | | | | | | | | | | | | | | |
Cash and Cash Equivalents, Fair Value Disclosure | | | | | | | | | | | | | 1,615.9 | | | 1,644.4 | | | |
Long-term Debt | | | | | | | | | | | | | (9,348.8) | | | (7,978.5) | | | |
Extinguishment of Debt, Amount | | | | | | | | | $ 1,780 | | | | | | | | | | |
Available-for-sale Securities, Current [Abstract] | | | | | | | | | | | | | | | | | | | |
Available-for-sale Securities, Current, Total | | | | | | | | | | | | | 737.8 | | | 785.4 | | | |
Available-for-sale Securities, Noncurrent [Abstract] | | | | | | | | | | | | | | | | | | | |
Available-for-sale Securities, Noncurrent, Total | | | | | | | | | | | | | 5,027 | | | 3,646.6 | | | |
Reported Value Measurement [Member] | Not Designated as Hedging Instrument [Member] | | | | | | | | | | | | | | | | | | | |
Business Combination, Contingent Consideration, Liability, Current | [1] | | | | | | | | | | | | (235) | | | (243.7) | | | |
Business Combination, Contingent Consideration, Liability, Noncurrent | [1] | | | | | | | | | | | | (296.2) | | | (427.2) | | | |
Reported Value Measurement [Member] | Corporate Debt Securities [Member] | | | | | | | | | | | | | | | | | | | |
Available-for-sale Securities, Current [Abstract] | | | | | | | | | | | | | | | | | | | |
Available-for-sale Securities, Debt Securities, Current | | | | | | | | | | | | | 648.8 | | | 625.8 | | | |
Available-for-sale Securities, Noncurrent [Abstract] | | | | | | | | | | | | | | | | | | | |
Available-for-sale Securities, Debt Securities, Noncurrent | | | | | | | | | | | | | 3,104.7 | | | 1,962.6 | | | |
Reported Value Measurement [Member] | US Government Agencies Debt Securities [Member] | | | | | | | | | | | | | | | | | | | |
Available-for-sale Securities, Current [Abstract] | | | | | | | | | | | | | | | | | | | |
Available-for-sale Securities, Debt Securities, Current | | | | | | | | | | | | | 81 | | | 153.2 | | | |
Available-for-sale Securities, Noncurrent [Abstract] | | | | | | | | | | | | | | | | | | | |
Available-for-sale Securities, Debt Securities, Noncurrent | | | | | | | | | | | | | 344 | | | 284.5 | | | |
Reported Value Measurement [Member] | Other Debt Obligations [Member] | | | | | | | | | | | | | | | | | | | |
Available-for-sale Securities, Current [Abstract] | | | | | | | | | | | | | | | | | | | |
Available-for-sale Securities, Debt Securities, Current | | | | | | | | | | | | | 2.7 | | | 3.1 | | | |
Available-for-sale Securities, Noncurrent [Abstract] | | | | | | | | | | | | | | | | | | | |
Available-for-sale Securities, Debt Securities, Noncurrent | | | | | | | | | | | | | 170.1 | | | 137.1 | | | |
Reported Value Measurement [Member] | Collateralized Mortgage Backed Securities [Member] | | | | | | | | | | | | | | | | | | | |
Available-for-sale Securities, Noncurrent [Abstract] | | | | | | | | | | | | | | | | | | | |
Available-for-sale Securities, Debt Securities, Noncurrent | | | | | | | | | | | | | 195.8 | | | 153.3 | | | |
Reported Value Measurement [Member] | Asset-backed Securities [Member] | | | | | | | | | | | | | | | | | | | |
Available-for-sale Securities, Current [Abstract] | | | | | | | | | | | | | | | | | | | |
Available-for-sale Securities, Debt Securities, Current | | | | | | | | | | | | | 5.3 | | | 3.3 | | | |
Available-for-sale Securities, Noncurrent [Abstract] | | | | | | | | | | | | | | | | | | | |
Available-for-sale Securities, Debt Securities, Noncurrent | | | | | | | | | | | | | 474.8 | | | 441.9 | | | |
Reported Value Measurement [Member] | Equity Securities, US [Member] | | | | | | | | | | | | | | | | | | | |
Available-for-sale Securities, Noncurrent [Abstract] | | | | | | | | | | | | | | | | | | | |
Available-for-sale Securities, Equity Securities, Noncurrent | | | | | | | | | | | | | 178.5 | | | 128.9 | | | |
Reported Value Measurement [Member] | Equity Method and Other Investments [Member] | | | | | | | | | | | | | | | | | | | |
Available-for-sale Securities, Noncurrent [Abstract] | | | | | | | | | | | | | | | | | | | |
Other Long-term Investments | [2] | | | | | | | | | | | | 559.1 | | | 538.3 | | | |
Reported Value Measurement [Member] | Cross Currency Interest Rate Contract [Member] | Designated as Hedging Instrument [Member] | | | | | | | | | | | | | | | | | | | |
Derivative Assets, Noncurrent | | | | | | | | | | | | | 1.6 | | | | | | |
Reported Value Measurement [Member] | Interest Rate Contract [Member] | Designated as Hedging Instrument [Member] | | | | | | | | | | | | | | | | | | | |
Derivative Assets, Current | | | | | | | | | | | | | 5.8 | | | | | | |
Derivative Assets, Noncurrent | | | | | | | | | | | | | 156.2 | | | 70.1 | | | |
Derivative Liabilities, Noncurrent | | | | | | | | | | | | | | | | (0.4) | | | |
Reported Value Measurement [Member] | Foreign Exchange Contract [Member] | Not Designated as Hedging Instrument [Member] | | | | | | | | | | | | | | | | | | | |
Derivative Assets, Current | | | | | | | | | | | | | 8.4 | | | 13.1 | | | |
Derivative Liabilities, Current | | | | | | | | | | | | | (5.5) | | | (17.3) | | | |
Portion at Other than Fair Value Measurement [Member] | | | | | | | | | | | | | | | | | | | |
Cash and Cash Equivalents, Fair Value Disclosure | [3] | | | | | | | | | | | | 1,615.9 | | | 1,644.4 | | | |
Portion at Other than Fair Value Measurement [Member] | Corporate Debt Securities [Member] | | | | | | | | | | | | | | | | | | | |
Available-for-sale Securities, Current [Abstract] | | | | | | | | | | | | | | | | | | | |
Available-for-sale Securities, Debt Securities, Current | [3] | | | | | | | | | | | | 648.3 | | | 626.9 | | | |
Available-for-sale Securities, Noncurrent [Abstract] | | | | | | | | | | | | | | | | | | | |
Available-for-sale Securities, Debt Securities, Noncurrent | [3] | | | | | | | | | | | | 3,084.7 | | | 1,995.8 | | | |
Portion at Other than Fair Value Measurement [Member] | US Government Agencies Debt Securities [Member] | | | | | | | | | | | | | | | | | | | |
Available-for-sale Securities, Current [Abstract] | | | | | | | | | | | | | | | | | | | |
Available-for-sale Securities, Debt Securities, Current | [3] | | | | | | | | | | | | 81 | | | 153.4 | | | |
Available-for-sale Securities, Noncurrent [Abstract] | | | | | | | | | | | | | | | | | | | |
Available-for-sale Securities, Debt Securities, Noncurrent | [3] | | | | | | | | | | | | 342 | | | 286 | | | |
Portion at Other than Fair Value Measurement [Member] | Other Debt Obligations [Member] | | | | | | | | | | | | | | | | | | | |
Available-for-sale Securities, Current [Abstract] | | | | | | | | | | | | | | | | | | | |
Available-for-sale Securities, Debt Securities, Current | [3] | | | | | | | | | | | | 2.7 | | | 3.1 | | | |
Available-for-sale Securities, Noncurrent [Abstract] | | | | | | | | | | | | | | | | | | | |
Available-for-sale Securities, Debt Securities, Noncurrent | [3] | | | | | | | | | | | | 82.6 | | | 97.3 | | | |
Portion at Other than Fair Value Measurement [Member] | Collateralized Mortgage Backed Securities [Member] | | | | | | | | | | | | | | | | | | | |
Available-for-sale Securities, Noncurrent [Abstract] | | | | | | | | | | | | | | | | | | | |
Available-for-sale Securities, Debt Securities, Noncurrent | [3] | | | | | | | | | | | | 193.7 | | | 154.7 | | | |
Portion at Other than Fair Value Measurement [Member] | Asset-backed Securities [Member] | | | | | | | | | | | | | | | | | | | |
Available-for-sale Securities, Current [Abstract] | | | | | | | | | | | | | | | | | | | |
Available-for-sale Securities, Debt Securities, Current | [3] | | | | | | | | | | | | 5.3 | | | 3.3 | | | |
Available-for-sale Securities, Noncurrent [Abstract] | | | | | | | | | | | | | | | | | | | |
Available-for-sale Securities, Debt Securities, Noncurrent | [3] | | | | | | | | | | | | 473.3 | | | 443.1 | | | |
Portion at Other than Fair Value Measurement [Member] | Equity Securities, US [Member] | | | | | | | | | | | | | | | | | | | |
Available-for-sale Securities, Noncurrent [Abstract] | | | | | | | | | | | | | | | | | | | |
Available-for-sale Securities, Equity Securities, Noncurrent | [3] | | | | | | | | | | | | $ 80.5 | | | $ 74.8 | | | |
| |
[1] | (1) Contingent consideration liabilities primarily relate to the Erbitux arrangement with BMS discussed in Note 4. | |
[2] | (2) Fair value disclosures are not applicable for cost method and equity method investments. | |
[3] | (1) For available-for-sale debt securities, amounts disclosed represent the securities' amortized cost. | |