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Consolidated Statements of Cash Flows (USD $) In Millions, unless otherwise specified | 3 Months Ended
--- | ---
Mar. 31, 2013 | Mar. 31, 2012
Cash flows from operating activities: |  |  |  |
Net earnings | $ 892 |  | $ 785 |
Adjustments to reconcile net earnings to net cash provided by operating activities: |  |  |  |
Change in receivables and advance premiums | 203 |  | (17) |
Increase in deferred policy acquisition costs | (100) |  | (141) |
Increase in policy liabilities | 2,400 |  | 2,928 |
Change in income tax liabilities | 193 |  | (20) |
Realized investment (gains) losses | (156) |  | 45 |
Other, net | 400 |  | (24) |
Net cash provided (used) by operating activities | 3,832 |  | 3,556 |
Securities available for sale: |  |  |  |
Fixed maturities sold | 541 |  | 226 |
Fixed maturities matured or called | 1,342 |  | 705 |
Perpetual securities sold | 0 |  | 552 |
Perpetual securities matured or called | 271 |  | 378 |
Securities held to maturity: |  |  |  |
Fixed maturities matured or called | 5,011 |  | 536 |
Costs of investments acquired: |  |  |  |
Available for sale fixed maturities acquired | (3,160) |  | (1,025) |
Held to matrurity fixed maturities acquired | (160) |  | (5,133) |
Settlement of derivatives | (851) |  | 0 |
Cash received as collateral on loaned securities, net | (6,070) |  | (645) |
Other, net | (9) |  | (30) |
Net cash provided (used) by investing activities | (3,085) |  | (4,436) |
Cash flows from financing activities: |  |  |  |
Purchases of treasury stock | (156) |  | (10) |
Proceeds from borrowings | 0 |  | 749 |
Principal payments under debt obligations | 0 |  | (1) |
Dividends paid to shareholders | (159) |  | (148) |
Change in investment-type contracts, net | 134 |  | 297 |
Treasury stock reissued | 19 |  | 5 |
Other, net | 6 |  | 9 |
Net cash provided (used) by financing activities | (156) |  | 901 |
Effect of exchange rate changes on cash and cash equivalents | (36) |  | (60) |
Net change in cash and cash equivalents | 555 |  | (39) |
Cash and cash equivalents, beginning of period | 2,041 |  | 2,249 |
Cash and cash equivalents, end of period | 2,596 |  | 2,210 |
Supplemental disclosures of cash flow information: |  |  |  |
Income taxes paid | 295 |  | 356 |
Interest paid | 43 |  | 44 |
Noncash interest | 28 | [1] | 13 | [1]
Impairment losses included in realized investment losses | 55 |  | 203 |
Noncash financing activities: |  |  |  |
Capitalized lease obligations | (1) |  | 1 |
Associate stock bonus |  |  |  |
Treasury stock issued for: |  |  |  |
Treasury stock issued | 8 |  | 8 |
Shareholder dividend reinvestment |  |  |  |
Treasury stock issued for: |  |  |  |
Treasury stock issued | 6 |  | 6 |
Share-based compensation grants |  |  |  |
Treasury stock issued for: |  |  |  |
Treasury stock issued | $ 4 |  | $ 4 |
[1] | Consists primarily of accreted interest on discounted advance premiums

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