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Consolidated Balance Sheets (USD $) In Millions, unless otherwise specified | Mar. 31, 2013 | Dec. 31, 2012
--- | --- | ---
Securities available for sale, at fair value: |  |  |  |
Equity securities (cost $18 in 2013 and $20 in 2012) | $ 24 |  | $ 23 |
Securities held to maturity, at amortized cost: |  |  |  |
Fixed maturities | 45,204 |  | 54,426 |
Other investments | 167 |  | 174 |
Cash and cash equivalents | 2,596 |  | 2,041 |
Total investments and cash | 107,400 |  | 118,219 |
Receivables | 1,710 |  | 976 |
Accrued investment income | 765 |  | 842 |
Deferred policy acquisition costs | 9,210 |  | 9,658 |
Property and equipment, at cost less accumulated depreciation | 527 |  | 564 |
Other | 926 | [1] | 835 | [1]
Total assets | 120,538 |  | 131,094 |
Policy liabilities: |  |  |  |
Future policy benefits | 72,077 |  | 76,463 |
Unpaid policy claims | 3,877 |  | 4,034 |
Unearned premiums | 11,963 |  | 11,904 |
Other policyholders' funds | 5,034 |  | 5,319 |
Total policy liabilities | 92,951 |  | 97,720 |
Income taxes | 3,799 |  | 3,858 |
Payables for return of cash collateral on loaned securities | 207 |  | 6,277 |
Notes payable | 4,283 |  | 4,352 |
Other | 3,763 | [2] | 2,909 | [2]
Commitments and contingent liabilities (Note 10) |  |  |  |
Total liabilities | 105,003 |  | 115,116 |
Shareholders' equity: |  |  |  |
Common stock of $.10 par value. In thousands: authorized 1,900,000 shares in 2013 and 2012; issued 665,778 shares in 2013 and 665,239 shares in 2012 | 67 |  | 67 |
Additional paid-in capital | 1,532 |  | 1,505 |
Retained earnings | 18,114 |  | 17,387 |
Accumulated other comprehensive income (loss): |  |  |  |
Unrealized foreign currency translation gains (losses) | (141) |  | 333 |
Unrealized gains (losses) on investment securities | 1,981 |  | 2,570 |
Unrealized gains (losses) on derivatives | (9) |  | (5) |
Pension liability adjustment | (180) |  | (183) |
Treasury stock, at average cost | (5,829) |  | (5,696) |
Total shareholders' equity | 15,535 |  | 15,978 |
Total liabilities and shareholders' equity | 120,538 |  | 131,094 |
Investments Other Than Consolidated Variable Interest Entities |  |  |  |
Securities available for sale, at fair value: |  |  |  |
Fixed maturities | 50,899 |  | 51,466 |
Perpetual securities | 2,678 |  | 3,728 |
Securities held to maturity, at amortized cost: |  |  |  |
Fixed maturities | 44,938 |  | 54,137 |
Variable Interest Entity, Consolidated |  |  |  |
Securities available for sale, at fair value: |  |  |  |
Fixed maturities | 5,377 |  | 5,787 |
Perpetual securities | 455 |  | 574 |
Securities held to maturity, at amortized cost: |  |  |  |
Fixed maturities | $ 266 |  | $ 289 |
[1] | Includes $158 in 2013 and $191 in 2012 of derivatives from consolidated variable interest entities
[2] | Includes $371 in 2013 and $399 in 2012 of derivatives from consolidated variable interest entities

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