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CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $) In Millions, unless otherwise specified | 12 Months Ended
--- | ---
Dec. 31, 2011 | Dec. 31, 2010 | Dec. 31, 2009
Cash Flows from Operating Activities |  |  |
Net Income | $ 235.4 | $ 886.1 | $ 852.6
Adjustments to Reconcile Net Income to Net Cash Provided by Operating Activities |  |  |
Change in Receivables | 37.0 | 1.7 | 113.9
Change in Deferred Acquisition Costs | (94.5) | (60.6) | (67.4)
Impairment of Deferred Acquisition Costs | 289.8 | 0 | 0
Change in Insurance Reserves and Liabilities | 1,113.9 | 537.8 | 441.2
Change in Income Taxes | (301.7) | 164.3 | 59.2
Change in Other Accrued Liabilities | 68.4 | (95.5) | (18.4)
Non-cash Adjustments to Net Investment Income | (240.6) | (276.2) | (239.8)
Net Realized Investment (Gain) Loss | 4.9 | (24.7) | (11.7)
Depreciation | 81.1 | 75.4 | 74.5
Other, Net | 0 | (11.5) | 32.9
Net Cash Provided by Operating Activities | 1,193.7 | 1,196.8 | 1,237.0
Cash Flows from Investing Activities |  |  |
Proceeds from Sales of Fixed Maturity Securities | 1,181.9 | 1,122.8 | 1,427.2
Proceeds from Maturities of Fixed Maturity Securities | 1,692.7 | 2,192.8 | 1,132.5
Proceeds from Sales and Maturities of Other Investments | 131.9 | 140.3 | 250.5
Purchase of Fixed Maturity Securities | (2,760.1) | (3,798.6) | (3,848.8)
Purchase of Other Investments | (304.1) | (332.8) | (267.7)
Net Sales (Purchases) of Short-term Investments | (254.6) | (288.1) | 199.0
Other, Net | (98.0) | (110.1) | (106.6)
Net Cash Used by Investing Activities | (410.3) | (1,073.7) | (1,213.9)
Cash Flows from Financing Activities |  |  |
Net Short-term Debt Borrowings (Repayments) | 87.2 | 0 | (190.5)
Issuance of Long-term Debt | 0 | 396.9 | 346.8
Long-term Debt Repayments | (84.4) | (78.3) | (59.8)
Issuance of Common Stock | 14.8 | 10.0 | 8.0
Repurchase of Common Stock | (619.9) | (356.0) | 0
Dividends Paid to Stockholders | (121.0) | (114.8) | (104.5)
Treasury Stock Acquired, Shares |  | 16.4 |
Other, Net | 2.9 | 1.1 | (1.5)
Net Cash Used by Financing Activities | (720.4) | (141.1) | (1.5)
Effect of Foreign Exchange Rate Changes on Cash | 0 | 0 | 0.1
Net Increase (Decrease) in Cash and Bank Deposits | 63.0 | (18.0) | 21.7
Cash and Bank Deposits at Beginning of Year | 53.6 | 71.6 | 49.9
Cash and Bank Deposits at End of Period | $ 116.6 | $ 53.6 | $ 71.6

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- Definition The net amount paid (received) by the reporting entity through acquisition or sale and maturities of short-term investments with an original maturity that is three months or less which qualify for treatment as an investing activity based on management's intention and intended by management to be liquidated, if necessary, within the current operating cycle. Includes cash flows from securities classified as trading securities that were acquired for reasons other than sale in the short-term. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 13 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=6943989&loc=d3e3095-108585 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 9 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=6943989&loc=d3e3098-108585 + Details
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- Definition The cash outflow to acquire debt and equity securities not classified as either held-to-maturity securities or trading securities which would be classified as available-for-sale securities and reported at fair value, with unrealized gains and losses excluded from earnings and reported in a separate component of shareholders' equity. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 17 -Subparagraph a -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Investing Activities -URI http://asc.fasb.org/extlink&oid=6516133 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 15 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 13 -Subparagraph (a),(b) -URI http://asc.fasb.org/extlink&oid=6943989&loc=d3e3213-108585 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 17 -Subparagraph b -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 115 -Paragraph 18 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 7: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 45 -Paragraph 11 -URI http://asc.fasb.org/extlink&oid=6871852&loc=d3e26853-111562 + Details
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