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Financial Instruments (Details)
In Millions, unless otherwise specified |
12 Months Ended | 12 Months Ended | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
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Dec. 31, 2013
USD ($)
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Dec. 31, 2012
USD ($)
|
Dec. 31, 2011
USD ($)
|
Mar. 31, 2014
USD ($)
|
Dec. 31, 2013
Hedged Fixed-Rate Debt [Member]
USD ($)
|
Dec. 31, 2012
Hedged Fixed-Rate Debt [Member]
USD ($)
|
Dec. 31, 2011
Hedged Fixed-Rate Debt [Member]
USD ($)
|
Dec. 31, 2013
Equity Contract [Member]
USD ($)
|
Dec. 31, 2012
Equity Contract [Member]
USD ($)
|
Dec. 31, 2011
Equity Contract [Member]
USD ($)
|
Dec. 31, 2013
Interest Rate Contract [Member]
USD ($)
|
Dec. 31, 2012
Interest Rate Contract [Member]
USD ($)
|
Dec. 31, 2011
Interest Rate Contract [Member]
USD ($)
|
Dec. 31, 2013
Carrying (Reported) Amount, Fair Value Disclosure [Member]
USD ($)
|
Dec. 31, 2012
Carrying (Reported) Amount, Fair Value Disclosure [Member]
USD ($)
|
Dec. 31, 2013
Carrying (Reported) Amount, Fair Value Disclosure [Member]
Equity Contract [Member]
Other Liabilities [Member]
USD ($)
|
Dec. 31, 2013
Carrying (Reported) Amount, Fair Value Disclosure [Member]
Interest Rate Contract [Member]
Other Assets [Member]
USD ($)
|
Dec. 31, 2012
Carrying (Reported) Amount, Fair Value Disclosure [Member]
Interest Rate Contract [Member]
Other Assets [Member]
USD ($)
|
Dec. 31, 2013
Carrying (Reported) Amount, Fair Value Disclosure [Member]
Interest Rate Contract [Member]
Other Liabilities [Member]
USD ($)
|
Dec. 31, 2013
Carrying (Reported) Amount, Fair Value Disclosure [Member]
Foreign Exchange Contract [Member]
Other Assets [Member]
USD ($)
|
Dec. 31, 2012
Carrying (Reported) Amount, Fair Value Disclosure [Member]
Foreign Exchange Contract [Member]
Other Assets [Member]
USD ($)
|
Dec. 31, 2013
Carrying (Reported) Amount, Fair Value Disclosure [Member]
Foreign Exchange Contract [Member]
Other Liabilities [Member]
USD ($)
|
Dec. 31, 2012
Carrying (Reported) Amount, Fair Value Disclosure [Member]
Foreign Exchange Contract [Member]
Other Liabilities [Member]
USD ($)
|
Dec. 31, 2013
Available-for-Sale Securities, Amortized Cost [Member]
USD ($)
|
Dec. 31, 2012
Available-for-Sale Securities, Amortized Cost [Member]
USD ($)
|
Dec. 31, 2013
Fair Value, Inputs, Level 1 [Member]
USD ($)
|
Dec. 31, 2012
Fair Value, Inputs, Level 1 [Member]
USD ($)
|
Dec. 31, 2013
Fair Value, Inputs, Level 2 [Member]
USD ($)
|
Dec. 31, 2012
Fair Value, Inputs, Level 2 [Member]
USD ($)
|
Dec. 31, 2013
Fair Value, Inputs, Level 2 [Member]
Equity Contract [Member]
Other Liabilities [Member]
USD ($)
|
Dec. 31, 2013
Fair Value, Inputs, Level 2 [Member]
Interest Rate Contract [Member]
Other Assets [Member]
USD ($)
|
Dec. 31, 2012
Fair Value, Inputs, Level 2 [Member]
Interest Rate Contract [Member]
Other Assets [Member]
USD ($)
|
Dec. 31, 2013
Fair Value, Inputs, Level 2 [Member]
Interest Rate Contract [Member]
Other Liabilities [Member]
USD ($)
|
Dec. 31, 2013
Fair Value, Inputs, Level 2 [Member]
Foreign Exchange Contract [Member]
Other Assets [Member]
USD ($)
|
Dec. 31, 2012
Fair Value, Inputs, Level 2 [Member]
Foreign Exchange Contract [Member]
Other Assets [Member]
USD ($)
|
Dec. 31, 2013
Fair Value, Inputs, Level 2 [Member]
Foreign Exchange Contract [Member]
Other Liabilities [Member]
USD ($)
|
Dec. 31, 2012
Fair Value, Inputs, Level 2 [Member]
Foreign Exchange Contract [Member]
Other Liabilities [Member]
USD ($)
|
Dec. 31, 2013
Estimate of Fair Value, Fair Value Disclosure [Member]
USD ($)
|
Dec. 31, 2012
Estimate of Fair Value, Fair Value Disclosure [Member]
USD ($)
|
Dec. 31, 2013
Estimate of Fair Value, Fair Value Disclosure [Member]
Equity Contract [Member]
Other Liabilities [Member]
USD ($)
|
Dec. 31, 2013
Estimate of Fair Value, Fair Value Disclosure [Member]
Interest Rate Contract [Member]
Other Assets [Member]
USD ($)
|
Dec. 31, 2012
Estimate of Fair Value, Fair Value Disclosure [Member]
Interest Rate Contract [Member]
Other Assets [Member]
USD ($)
|
Dec. 31, 2013
Estimate of Fair Value, Fair Value Disclosure [Member]
Interest Rate Contract [Member]
Other Liabilities [Member]
USD ($)
|
Dec. 31, 2013
Estimate of Fair Value, Fair Value Disclosure [Member]
Foreign Exchange Contract [Member]
Other Assets [Member]
USD ($)
|
Dec. 31, 2012
Estimate of Fair Value, Fair Value Disclosure [Member]
Foreign Exchange Contract [Member]
Other Assets [Member]
USD ($)
|
Dec. 31, 2013
Estimate of Fair Value, Fair Value Disclosure [Member]
Foreign Exchange Contract [Member]
Other Liabilities [Member]
USD ($)
|
Dec. 31, 2012
Estimate of Fair Value, Fair Value Disclosure [Member]
Foreign Exchange Contract [Member]
Other Liabilities [Member]
USD ($)
|
Dec. 31, 2013
Corporate Debt Securities [Member]
Carrying (Reported) Amount, Fair Value Disclosure [Member]
USD ($)
|
Dec. 31, 2012
Corporate Debt Securities [Member]
Carrying (Reported) Amount, Fair Value Disclosure [Member]
USD ($)
|
Dec. 31, 2013
Corporate Debt Securities [Member]
Available-for-Sale Securities, Amortized Cost [Member]
USD ($)
|
Dec. 31, 2012
Corporate Debt Securities [Member]
Available-for-Sale Securities, Amortized Cost [Member]
USD ($)
|
Dec. 31, 2013
Corporate Debt Securities [Member]
Fair Value, Inputs, Level 2 [Member]
USD ($)
|
Dec. 31, 2012
Corporate Debt Securities [Member]
Fair Value, Inputs, Level 2 [Member]
USD ($)
|
Dec. 31, 2013
Corporate Debt Securities [Member]
Estimate of Fair Value, Fair Value Disclosure [Member]
USD ($)
|
Dec. 31, 2012
Corporate Debt Securities [Member]
Estimate of Fair Value, Fair Value Disclosure [Member]
USD ($)
|
Dec. 31, 2013
US Government Agencies Debt Securities [Member]
Carrying (Reported) Amount, Fair Value Disclosure [Member]
USD ($)
|
Dec. 31, 2012
US Government Agencies Debt Securities [Member]
Carrying (Reported) Amount, Fair Value Disclosure [Member]
USD ($)
|
Dec. 31, 2013
US Government Agencies Debt Securities [Member]
Available-for-Sale Securities, Amortized Cost [Member]
USD ($)
|
Dec. 31, 2012
US Government Agencies Debt Securities [Member]
Available-for-Sale Securities, Amortized Cost [Member]
USD ($)
|
Dec. 31, 2013
US Government Agencies Debt Securities [Member]
Fair Value, Inputs, Level 1 [Member]
USD ($)
|
Dec. 31, 2012
US Government Agencies Debt Securities [Member]
Fair Value, Inputs, Level 1 [Member]
USD ($)
|
Dec. 31, 2013
US Government Agencies Debt Securities [Member]
Fair Value, Inputs, Level 2 [Member]
USD ($)
|
Dec. 31, 2012
US Government Agencies Debt Securities [Member]
Fair Value, Inputs, Level 2 [Member]
USD ($)
|
Dec. 31, 2013
US Government Agencies Debt Securities [Member]
Estimate of Fair Value, Fair Value Disclosure [Member]
USD ($)
|
Dec. 31, 2012
US Government Agencies Debt Securities [Member]
Estimate of Fair Value, Fair Value Disclosure [Member]
USD ($)
|
Dec. 31, 2013
Other Debt Obligations [Member]
Carrying (Reported) Amount, Fair Value Disclosure [Member]
USD ($)
|
Dec. 31, 2012
Other Debt Obligations [Member]
Carrying (Reported) Amount, Fair Value Disclosure [Member]
USD ($)
|
Dec. 31, 2013
Other Debt Obligations [Member]
Available-for-Sale Securities, Amortized Cost [Member]
USD ($)
|
Dec. 31, 2012
Other Debt Obligations [Member]
Available-for-Sale Securities, Amortized Cost [Member]
USD ($)
|
Dec. 31, 2013
Other Debt Obligations [Member]
Fair Value, Inputs, Level 2 [Member]
USD ($)
|
Dec. 31, 2012
Other Debt Obligations [Member]
Fair Value, Inputs, Level 2 [Member]
USD ($)
|
Dec. 31, 2013
Other Debt Obligations [Member]
Estimate of Fair Value, Fair Value Disclosure [Member]
USD ($)
|
Dec. 31, 2012
Other Debt Obligations [Member]
Estimate of Fair Value, Fair Value Disclosure [Member]
USD ($)
|
Dec. 31, 2013
Collateralized Mortgage Backed Securities [Member]
Carrying (Reported) Amount, Fair Value Disclosure [Member]
USD ($)
|
Dec. 31, 2012
Collateralized Mortgage Backed Securities [Member]
Carrying (Reported) Amount, Fair Value Disclosure [Member]
USD ($)
|
Dec. 31, 2013
Collateralized Mortgage Backed Securities [Member]
Available-for-Sale Securities, Amortized Cost [Member]
USD ($)
|
Dec. 31, 2012
Collateralized Mortgage Backed Securities [Member]
Available-for-Sale Securities, Amortized Cost [Member]
USD ($)
|
Dec. 31, 2013
Collateralized Mortgage Backed Securities [Member]
Fair Value, Inputs, Level 2 [Member]
USD ($)
|
Dec. 31, 2012
Collateralized Mortgage Backed Securities [Member]
Fair Value, Inputs, Level 2 [Member]
USD ($)
|
Dec. 31, 2013
Collateralized Mortgage Backed Securities [Member]
Estimate of Fair Value, Fair Value Disclosure [Member]
USD ($)
|
Dec. 31, 2012
Collateralized Mortgage Backed Securities [Member]
Estimate of Fair Value, Fair Value Disclosure [Member]
USD ($)
|
Dec. 31, 2013
Asset-backed Securities [Member]
Carrying (Reported) Amount, Fair Value Disclosure [Member]
USD ($)
|
Dec. 31, 2012
Asset-backed Securities [Member]
Carrying (Reported) Amount, Fair Value Disclosure [Member]
USD ($)
|
Dec. 31, 2013
Asset-backed Securities [Member]
Available-for-Sale Securities, Amortized Cost [Member]
USD ($)
|
Dec. 31, 2012
Asset-backed Securities [Member]
Available-for-Sale Securities, Amortized Cost [Member]
USD ($)
|
Dec. 31, 2013
Asset-backed Securities [Member]
Fair Value, Inputs, Level 2 [Member]
USD ($)
|
Dec. 31, 2012
Asset-backed Securities [Member]
Fair Value, Inputs, Level 2 [Member]
USD ($)
|
Dec. 31, 2013
Asset-backed Securities [Member]
Estimate of Fair Value, Fair Value Disclosure [Member]
USD ($)
|
Dec. 31, 2012
Asset-backed Securities [Member]
Estimate of Fair Value, Fair Value Disclosure [Member]
USD ($)
|
Dec. 31, 2013
Equity Securities [Member]
Carrying (Reported) Amount, Fair Value Disclosure [Member]
USD ($)
|
Dec. 31, 2012
Equity Securities [Member]
Carrying (Reported) Amount, Fair Value Disclosure [Member]
USD ($)
|
Dec. 31, 2013
Equity Securities [Member]
Available-for-Sale Securities, Amortized Cost [Member]
USD ($)
|
Dec. 31, 2012
Equity Securities [Member]
Available-for-Sale Securities, Amortized Cost [Member]
USD ($)
|
Dec. 31, 2013
Equity Securities [Member]
Fair Value, Inputs, Level 1 [Member]
USD ($)
|
Dec. 31, 2012
Equity Securities [Member]
Fair Value, Inputs, Level 1 [Member]
USD ($)
|
Dec. 31, 2013
Equity Securities [Member]
Estimate of Fair Value, Fair Value Disclosure [Member]
USD ($)
|
Dec. 31, 2012
Equity Securities [Member]
Estimate of Fair Value, Fair Value Disclosure [Member]
USD ($)
|
Dec. 31, 2013
Equity Method and Other Investments [Member]
Carrying (Reported) Amount, Fair Value Disclosure [Member]
USD ($)
|
Dec. 31, 2012
Equity Method and Other Investments [Member]
Carrying (Reported) Amount, Fair Value Disclosure [Member]
USD ($)
|
Dec. 31, 2013
Equity Method and Other Investments [Member]
Available-for-Sale Securities, Amortized Cost [Member]
USD ($)
|
Dec. 31, 2012
Equity Method and Other Investments [Member]
Available-for-Sale Securities, Amortized Cost [Member]
USD ($)
|
Dec. 31, 2013
Buy euro Sell US dollar [Member]
USD ($)
|
Dec. 31, 2013
Buy euro Sell US dollar [Member]
EUR (€)
|
Dec. 31, 2013
Buy USD Sell Euro [Member]
USD ($)
|
Dec. 31, 2013
Buy USD Sell Euro [Member]
EUR (€)
|
Dec. 31, 2013
Buy GBP Sell Euro [Member]
EUR (€)
|
Dec. 31, 2013
Buy GBP Sell Euro [Member]
GBP (£)
|
Dec. 31, 2013
Buy USD Sell Japanese Yen [Member]
USD ($)
|
Dec. 31, 2013
Buy USD Sell Japanese Yen [Member]
JPY (¥)
|
|
| Derivative Liability, Notional Amount | € 520.7 | $ 462.6 | £ 180.7 | $ 234.4 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Derivative Asset, Notional Amount | 716.8 | 337.6 | 216.0 | 24,350.0 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Proceeds from Sale of Available-for-sale Securities | 13,753.5 | 6,529.8 | 2,268.3 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Cash and Cash Equivalents, Fair Value Disclosure | 3,830.2 | 4,018.8 | 3,830.2 | 4,018.8 | 3,772.6 | 3,964.4 | 57.6 | 54.4 | 3,830.2 | 4,018.8 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Long-term Debt | (5,212.9) | (5,531.3) | (5,212.9) | (5,531.3) | (5,490.9) | (5,996.6) | (5,490.9) | (5,996.6) | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Derivative Assets, Current | 20.1 | 6.7 | 11.0 | 20.1 | 6.7 | 11.0 | 20.1 | 6.7 | 11.0 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 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 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Long-term Debt, Percentage Bearing Variable Interest, Percentage Rate | 65.00% | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Change in Unrealized Gain (Loss) on Hedged Item in Fair Value Hedge | (308.2) | 51.5 | 259.6 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Change in Unrealized Gain (Loss) on Fair Value Hedging Instruments | 308.2 | (51.5) | (259.6) | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Interest Rate Cash Flow Hedge Gain (Loss) to be Reclassified During Next 12 Months, Net | 8.8 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Derivative Instruments, Loss Reclassified from Accumulated OCI into Income, Effective Portion | 9.0 | 9.0 | 9.0 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Derivative Instruments, Gain (Loss) Recognized in Income, Net | 15.4 | (35.8) | 97.4 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Derivative Instruments, Gain (Loss) Recognized in Other Comprehensive Income (Loss), Effective Portion, Net | 16.7 | (149.6) | 0 | 35.6 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Derivative Assets, Noncurrent | 278.7 | 589.4 | 278.7 | 589.4 | 278.7 | 589.4 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Derivative Liability, Noncurrent | (0.9) | (0.9) | (0.9) | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Derivative Liabilities, Current | (149.6) | (7.1) | (17.5) | (149.6) | (7.1) | (17.5) | (149.6) | (7.1) | (17.5) | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Available-for-sale Securities, Gross Unrealized Gains | 375.6 | 140.5 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Available-for-sale Securities, Gross Unrealized Losses | 59.8 | 29.0 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Available-for-sale Securities, Continuous Unrealized Gain Position, Fair Value | 4,982.7 | 5,246.0 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value | 3,664.7 | 2,102.0 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Other than Temporary Impairment Losses, Investments | 11.3 | 22.6 | 31.1 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Available-for-sale Securities, Gross Realized Gains | 49.5 | 82.3 | 140.0 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Available-for-sale Securities, Gross Realized Losses | 15.4 | 10.9 | 9.9 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Available-for-sale Securities, Current [Abstract] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Available-for-sale Securities, Debt Securities, Current | 931.7 | 1,503.5 | 929.8 | 1,501.5 | 931.7 | 1,503.5 | 931.7 | 1,503.5 | 276.4 | 150.2 | 276.6 | 150.2 | 276.4 | 150.2 | 276.4 | 150.2 | 2.7 | 11.8 | 2.7 | 11.8 | 2.7 | 11.8 | 2.7 | 11.8 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Available-for-sale Securities, Equity Securities | 356.3 | 75.0 | 356.3 | 356.3 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Available-for-sale Securities, Current, Total | 1,567.1 | 1,665.5 | 1,284.1 | 1,663.5 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Available-for-sale Securities, Noncurrent [Abstract] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Available-for-sale Securities, Debt Securities, Noncurrent | 4,940.5 | 3,351.3 | 4,933.7 | 3,322.9 | 4,940.5 | 3,351.3 | 4,940.5 | 3,351.3 | 1,115.6 | 1,362.7 | 1,126.1 | 1,360.3 | 1,035.6 | 1,122.4 | 80.0 | 240.3 | 1,115.6 | 1,362.7 | 7.3 | 3.3 | 8.3 | 3.3 | 7.3 | 3.3 | 7.3 | 3.3 | 636.0 | 668.1 | 652.4 | 677.7 | 636.0 | 668.1 | 636.0 | 668.1 | 490.0 | 519.0 | 494.5 | 523.5 | 490.0 | 519.0 | 490.0 | 519.0 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Available-for-sale Securities, Equity Securities, Noncurrent | 81.2 | 175.8 | 22.8 | 83.0 | 81.2 | 175.8 | 81.2 | 175.8 | 354.3 | 233.7 | 354.3 | 233.7 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Available-for-sale Securities, Noncurrent, Total | 7,624.9 | 6,313.9 | 7,592.1 | 6,204.4 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Available-for-sale Securities, Debt Maturities, Next Twelve Months, Fair Value | 1,210.8 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Available-for-sale Securities, Debt Maturities, Year Two Through Five, Fair Value | 5,977.4 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Available-for-sale Securities, Debt Maturities, Year Six Through Ten, Fair Value | 471.3 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Available-for-sale Securities, Debt Maturities, after Ten Years, Fair Value | 740.7 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Available-for-sale Securities, Debt Securities | 8,400.2 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Derivative, Notional Amount | 500.0 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Maximum Length of Time Hedged in Interest Rate Cash Flow Hedge | 30 years | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Short-term borrowings and current maturies of long-term debt | $ 1,012.6 | $ 11.9 | $ 1,000.0 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||