v2.4.0.6

Debt (Medium-Term Notes) (Details) (USD $) | 12 Months Ended
--- | ---
Dec. 31, 2011 | Dec. 31, 2010 | Dec. 31, 2009
Long-term Debt, Weighted Average Interest Rate | 5.61% |  |
Medium-term Notes | $ 1,632,300,000 | $ 1,623,000,000 |
Debt Mark To Market Adjustment | 35,800,000 | 42,300,000 |
Loss related to extinguishment of debt | 4,800,000 | 218,600,000 | 4,700,000
Repayments of Other Debt | 151,000,000 | 710,800,000 | 1,113,000,000
Payments for Repurchase of Common Stock | 46,100,000 | 500,100,000 | 0
Deferred Gain (Loss) on Discontinuation of Interest Rate Fair Value Hedge | 15,800,000 | 0 |
6.75% Senior Notes Due March 2012 [Member] |  |  |
Medium-term Notes | 250,000,000 | 250,000,000 |
Principal amount of note | 250,000,000 |  |
Senior notes rate | 6.75% |  |
Maturity date | Mar. 01, 2012 |  |
5.50% Senior Notes due 2013 [Member] |  |  |
Medium-term Notes | 500,000,000 | 500,000,000 |
6.25% senior notes due 2018 [Member] |  |  |
Medium-term Notes | 250,000,000 | 250,000,000 |
10.60% senior notes due 2019 [Member] |  |  |
Medium-term Notes | 20,700,000 | 20,700,000 |
Principal amount of note | 300,000,000 |  |
Senior notes rate | 10.60% |  |
Medium Term Notes, Redemption, Cash Paid Per $1000 Principal Amount |  | 1,437.50 |
Medium Term Notes, Redemption, Min Principal Amount Subject To Redemption |  | 1,000 |
Loss related to extinguishment of debt |  | 131,400,000 |
Repayments of Other Debt |  | 402,200,000 |
Maturity date | Apr. 15, 2019 |  |
Proceeds from Debt, Net of Issuance Costs |  |  | 290,200,000
Medium Term Notes, Redemption, Principal Amount |  | 279,300,000 |
4.625% Notes Due 2009 and 4.0% Notes Due 2010 [Member] |  |  |
Repayments of Other Debt |  |  | 329,700,000
4.625% Notes Due 2009 [Domain] |  |  |
Principal amount of note |  |  | 250,000,000
Senior notes rate |  |  | 4.625%
Loss related to extinguishment of debt |  |  | 4,700,000
Repayments of Other Debt |  |  | 69,900,000
Medium Term Notes, Redemption, Principal Amount |  |  | 180,100,000
4.0% Notes Due 2010 [Member] |  |  |
Principal amount of note |  |  | 250,000,000
Senior notes rate |  | 4.00% |
Repayments of Other Debt |  | 105,100,000 |
Medium Term Notes, Redemption, Principal Amount |  |  | 144,900,000
4.70% senior notes due 2020 [Member] |  |  |
Medium-term Notes | 550,000,000 | 550,000,000 |
Principal amount of note | 550,000,000 |  |
Senior notes rate | 4.70% |  |
Maturity date | Aug. 15, 2020 |  |
Proceeds from Debt, Net of Issuance Costs |  | 544,900,000 |
6.11% senior notes due 2028 [Member] |  |  |
Medium-term Notes | 10,000,000 | 10,000,000 |
Accelerated Stock Buyback Program [Member] |  |  |
Payments for Repurchase of Common Stock |  | $ 500,000,000 |

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