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Financial Instruments (Tables)
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12 Months Ended |
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Dec. 31, 2014
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| Fair Value Disclosures [Abstract] |
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| Fair Value, Liabilities Measured on Recurring and Nonrecurring Basis [Table Text Block] |
The table below summarizes the contractual maturities of our investments in debt securities measured at fair value as of December 31, 2014: | | | | | | | | | | | | | | | | | | | | | | Maturities by Period | | Total | | Within 1 Year | | After 1 Year Through 5 Years | | After 5 Years Through 10 Years | | After 10 Years | Fair value of debt securities | $ | 4,872.8 |
| | $ | 955.4 |
| | $ | 3,462.1 |
| | $ | 230.7 |
| | $ | 224.6 |
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| Schedule of Derivatives Instruments Statements of Financial Performance and Financial Position, Location [Table Text Block] |
The following effects of risk-management instruments were recognized in other–net, (income) expense: | | | | | | | | | | | | | | 2014 | | 2013 | | 2012 | Fair value hedges: | | | | | | Effect from hedged fixed-rate debt | $ | 156.9 |
| | $ | (308.2 | ) | | $ | 51.5 |
| Effect from interest rate contracts | (156.9 | ) | | 308.2 |
| | (51.5 | ) | Cash flow hedges: | | | | | | Effective portion of losses on equity contracts reclassified from accumulated other comprehensive loss(1) | 129.0 |
| | — |
| | — |
| Effective portion of losses on interest rate contracts reclassified from accumulated other comprehensive loss | 9.0 |
| | 9.0 |
| | 9.0 |
| Net (gains) losses on foreign currency exchange contracts not designated as hedging instruments | (20.4 | ) | | 15.4 |
| | (35.8 | ) | Net losses on interest rate contracts not designated as hedging instruments | 3.4 |
| | — |
| | — |
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| | 1 | Realized gains on the sale of underlying equity securities recognized in other-net, (income) expense were $260.8 million during the year ended December 31, 2014. There were no realized gains on the sale of underlying equity securities during the years ended December 31, 2013 and 2012. |
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| Fair Value, Assets Measured on Recurring Basis [Table Text Block] |
The following tables summarize certain fair value information at December 31 for assets and liabilities measured at fair value on a recurring basis, as well as the carrying amount and amortized cost of certain other investments: | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Fair Value Measurements Using | | | Description | Carrying Amount | | Amortized Cost | | Quoted Prices in Active Markets for Identical Assets (Level 1) | | Significant Other Observable Inputs (Level 2) | | Significant Unobservable Inputs (Level 3) | | Fair Value | December 31, 2014 | | | | | | | | | | | | Cash equivalents | $ | 2,443.5 |
| | $ | 2,443.5 |
| | $ | 2,415.5 |
| | $ | 28.0 |
| | $ | — |
| | $ | 2,443.5 |
| Short-term investments: | | | | | | | | | | | | U.S. government and agencies | $ | 185.5 |
| | $ | 185.6 |
| | $ | 156.5 |
| | $ | 29.0 |
| | $ | — |
| | $ | 185.5 |
| Corporate debt securities | 767.4 |
| | 766.7 |
| | — |
| | 767.4 |
| | — |
| | 767.4 |
| Other securities | 2.5 |
| | 2.5 |
| | — |
| | 2.5 |
| | — |
| | 2.5 |
| Short-term investments | $ | 955.4 |
| | $ | 954.8 |
| | | | | | | | | Noncurrent investments: | U.S. government and agencies | $ | 756.7 |
| | $ | 757.5 |
| | $ | 747.5 |
| | $ | 9.2 |
| | $ | — |
| | $ | 756.7 |
| Corporate debt securities | 2,462.7 |
| | 2,468.9 |
| | — |
| | 2,462.7 |
| | — |
| | 2,462.7 |
| Mortgage-backed | 217.0 |
| | 217.6 |
| | — |
| | 217.0 |
| | — |
| | 217.0 |
| Asset-backed | 477.8 |
| | 478.0 |
| | — |
| | 477.8 |
| | — |
| | 477.8 |
| Other securities | 3.2 |
| | 3.2 |
| | — |
| | 3.2 |
| | — |
| | 3.2 |
| Marketable equity | 204.8 |
| | 44.0 |
| | 204.8 |
| | — |
| | — |
| | 204.8 |
| Equity method and other investments(1) | 446.7 |
| | 446.7 |
| | | | | | | | | Noncurrent investments | $ | 4,568.9 |
| | $ | 4,415.9 |
| | | | | | | | | | | | | | | | | | | | | December 31, 2013 | | | | | | | | | | | | Cash equivalents | $ | 2,574.7 |
| | $ | 2,574.7 |
| | $ | 2,517.1 |
| | $ | 57.6 |
| | $ | — |
| | $ | 2,574.7 |
| Short-term investments: | | | | | | | | | | | | U.S. government and agencies | $ | 276.4 |
| | $ | 276.6 |
| | $ | 276.4 |
| | $ | — |
| | $ | — |
| | $ | 276.4 |
| Corporate debt securities | 931.7 |
| | 929.8 |
| | — |
| | 931.7 |
| | — |
| | 931.7 |
| Other securities | 2.7 |
| | 2.7 |
| | — |
| | 2.7 |
| | — |
| | 2.7 |
| Marketable equity | 356.3 |
| | 75.0 |
| | 356.3 |
| | — |
| | — |
| | 356.3 |
| Short-term investments | $ | 1,567.1 |
| | $ | 1,284.1 |
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| Noncurrent investments: | | | | | | | | | | | | U.S. government and agencies | $ | 1,115.6 |
| | $ | 1,126.1 |
| | $ | 1,035.6 |
| | $ | 80.0 |
| | $ | — |
| | $ | 1,115.6 |
| Corporate debt securities | 4,940.5 |
| | 4,933.7 |
| | — |
| | 4,940.5 |
| | — |
| | 4,940.5 |
| Mortgage-backed | 636.0 |
| | 652.4 |
| | — |
| | 636.0 |
| | — |
| | 636.0 |
| Asset-backed | 490.0 |
| | 494.5 |
| | — |
| | 490.0 |
| | — |
| | 490.0 |
| Other securities | 7.3 |
| | 8.3 |
| | — |
| | 7.3 |
| | — |
| | 7.3 |
| Marketable equity | 81.2 |
| | 22.8 |
| | 81.2 |
| | — |
| | — |
| | 81.2 |
| Equity method and other investments(1) | 354.3 |
| | 354.3 |
| | | | | | | | | Noncurrent investments | $ | 7,624.9 |
| | $ | 7,592.1 |
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| | 1 | Fair value not applicable |
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| Fair Value, Liabilities Measured on Recurring Basis [Table Text Block] |
| | | | | | | | | | | | | | | | | | | | | | | | Fair Value Measurements Using | | | Description | Carrying Amount | | Quoted Prices in Active Markets for Identical Assets (Level 1) | | Significant Other Observable Inputs (Level 2) | | Significant Unobservable Inputs (Level 3) | | Fair Value | Short-term commercial paper borrowings | | | | | | | | | | December 31, 2014 | $ | (2,680.6 | ) | | $ | — |
| | $ | (2,680.6 | ) | | $ | — |
| | $ | (2,680.6 | ) | December 31, 2013 | — |
| | — |
| | — |
| | — |
| | — |
| | | | | | | | | | | Long-term debt, including current portion | | | | | | | | | | December 31, 2014 | $ | (5,375.8 | ) | | $ | — |
| | $ | (5,722.1 | ) | | $ | — |
| | $ | (5,722.1 | ) | December 31, 2013 | (5,212.9 | ) | | — |
| | (5,490.9 | ) | | — |
| | (5,490.9 | ) |
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| Fair Value, by Balance Sheet Grouping [Table Text Block] |
| | | | | | | | | | | | | | | | | | | | | | | | Fair Value Measurements Using | | | Description | Carrying Amount | | Quoted Prices in Active Markets for Identical Assets (Level 1) | | Significant Other Observable Inputs (Level 2) | | Significant Unobservable Inputs (Level 3) | | Fair Value | December 31, 2014 | | | | | | | | | | Risk-management instruments | | | | | | | | | | Interest rate contracts designated as hedging instruments: | | | | | | | | | | Other receivables | $ | 102.5 |
| | $ | — |
| | $ | 102.5 |
| | $ | — |
| | $ | 102.5 |
| Other current liabilities | (149.5 | ) | | — |
| | (149.5 | ) | | — |
| | (149.5 | ) | Other noncurrent liabilities | (0.7 | ) | | — |
| | (0.7 | ) | | — |
| | (0.7 | ) | Foreign exchange contracts not designated as hedging instruments: | | | | | | | | | | Other receivables | 9.1 |
| | — |
| | 9.1 |
| | — |
| | 9.1 |
| Other current liabilities | (14.0 | ) | | — |
| | (14.0 | ) | | — |
| | (14.0 | ) | | | | | | | | | | | December 31, 2013 | | | | | | | | | | Risk-management instruments | | | | | | | | | | Interest rate contracts designated as hedging instruments: | | | | | | | | | | Other receivables | $ | 20.1 |
| | $ | — |
| | $ | 20.1 |
| | $ | — |
| | $ | 20.1 |
| Sundry | 278.7 |
| | — |
| | 278.7 |
| | — |
| | 278.7 |
| Other noncurrent liabilities | (0.9 | ) | | — |
| | (0.9 | ) | | — |
| | (0.9 | ) | Foreign exchange contracts not designated as hedging instruments: | | | | | | | | | | Other receivables | 6.7 |
| | — |
| | 6.7 |
| | — |
| | 6.7 |
| Other current liabilities | (7.1 | ) | | — |
| | (7.1 | ) | | — |
| | (7.1 | ) | Equity contracts designated as hedging instruments: | | | | | | | | | | Other current liabilities | (149.6 | ) | | — |
| | (149.6 | ) | | — |
| | (149.6 | ) |
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| Available-for-sale Securities [Table Text Block] |
A summary of the fair value of available-for-sale securities in an unrealized gain or loss position and the amount of unrealized gains and losses (pretax) in accumulated other comprehensive loss follows: | | | | | | | | | | 2014 | | 2013 | Unrealized gross gains | $ | 171.9 |
| | $ | 375.6 |
| Unrealized gross losses | 18.3 |
| | 59.8 |
| Fair value of securities in an unrealized gain position | 1,778.8 |
| | 4,982.7 |
| Fair value of securities in an unrealized loss position | 3,129.2 |
| | 3,664.7 |
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| Gain (Loss) on Investments [Table Text Block] |
Activity related to our investment portfolio, substantially all of which related to available-for-sale securities, was as follows: | | | | | | | | | | | | | | 2014 | | 2013 | | 2012 | Proceeds from sales | $ | 14,609.5 |
| | $ | 13,753.5 |
| | $ | 6,529.8 |
| Realized gross gains on sales | 353.5 |
| | 49.5 |
| | 82.3 |
| Realized gross losses on sales | 29.4 |
| | 15.4 |
| | 10.9 |
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