XML 86 R21.htm IDEA: XBRL DOCUMENT
v2.4.0.6

INVESTMENTS (Tables) | 3 Months Ended
--- | ---
Mar. 31, 2013 | Mar. 31, 2012
Available-for-sale Securities | The amortized cost for our investments in debt and perpetual securities, the cost for equity securities and the fair values of these investments are shown in the following tables.
| March 31, 2013
(In millions) | Cost or Amortized Cost |  | Gross Unrealized Gains |  | Gross Unrealized Losses |  | Fair Value
Securities available for sale, carried at fair value: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Fixed maturities: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Yen-denominated: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Japan government and agencies |  | $ | 12,035 |  |  |  |  | $ | 748 |  |  |  |  | $ | 0 |  |  |  |  | $ | 12,783 |  |
Mortgage- and asset-backed securities |  | 671 |  |  |  |  | 44 |  |  |  |  | 1 |  |  |  |  | 714 |  |
Public utilities |  | 2,928 |  |  |  |  | 116 |  |  |  |  | 53 |  |  |  |  | 2,991 |  |
Sovereign and supranational |  | 1,120 |  |  |  |  | 61 |  |  |  |  | 7 |  |  |  |  | 1,174 |  |
Banks/financial institutions |  | 2,952 |  |  |  |  | 183 |  |  |  |  | 236 |  |  |  |  | 2,899 |  |
Other corporate |  | 4,892 |  |  |  |  | 189 |  |  |  |  | 256 |  |  |  |  | 4,825 |  |
Total yen-denominated |  | 24,598 |  |  |  |  | 1,341 |  |  |  |  | 553 |  |  |  |  | 25,386 |  |
Dollar-denominated: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
U.S. government and agencies |  | 95 |  |  |  |  | 16 |  |  |  |  | 0 |  |  |  |  | 111 |  |
Municipalities |  | 1,018 |  |  |  |  | 149 |  |  |  |  | 6 |  |  |  |  | 1,161 |  |
Mortgage- and asset-backed securities |  | 182 |  |  |  |  | 58 |  |  |  |  | 0 |  |  |  |  | 240 |  |
Public utilities |  | 4,581 |  |  |  |  | 609 |  |  |  |  | 31 |  |  |  |  | 5,159 |  |
Sovereign and supranational |  | 468 |  |  |  |  | 112 |  |  |  |  | 2 |  |  |  |  | 578 |  |
Banks/financial institutions |  | 3,578 |  |  |  |  | 502 |  |  |  |  | 8 |  |  |  |  | 4,072 |  |
Other corporate |  | 18,259 |  |  |  |  | 1,581 |  |  |  |  | 271 |  |  |  |  | 19,569 |  |
Total dollar-denominated |  | 28,181 |  |  |  |  | 3,027 |  |  |  |  | 318 |  |  |  |  | 30,890 |  |
Total fixed maturities |  | 52,779 |  |  |  |  | 4,368 |  |  |  |  | 871 |  |  |  |  | 56,276 |  |
Perpetual securities: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Yen-denominated: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Banks/financial institutions |  | 3,080 |  |  |  |  | 73 |  |  |  |  | 525 |  |  |  |  | 2,628 |  |
Other corporate |  | 285 |  |  |  |  | 0 |  |  |  |  | 67 |  |  |  |  | 218 |  |
Dollar-denominated: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Banks/financial institutions |  | 268 |  |  |  |  | 25 |  |  |  |  | 6 |  |  |  |  | 287 |  |
Total perpetual securities |  | 3,633 |  |  |  |  | 98 |  |  |  |  | 598 |  |  |  |  | 3,133 |  |
Equity securities |  | 18 |  |  |  |  | 6 |  |  |  |  | 0 |  |  |  |  | 24 |  |
Total securities available for sale |  | $ | 56,430 |  |  |  |  | $ | 4,472 |  |  |  |  | $ | 1,469 |  |  |  |  | $ | 59,433 |  |
| December 31, 2012
(In millions) | Cost or Amortized Cost |  | Gross Unrealized Gains |  | Gross Unrealized Losses |  | Fair Value
Securities available for sale, carried at fair value: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Fixed maturities: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Yen-denominated: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Japan government and agencies |  | $ | 12,612 |  |  |  |  | $ | 349 |  |  |  |  | $ | 81 |  |  |  |  | $ | 12,880 |  |
Mortgage- and asset-backed securities |  | 746 |  |  |  |  | 40 |  |  |  |  | 1 |  |  |  |  | 785 |  |
Public utilities |  | 3,608 |  |  |  |  | 116 |  |  |  |  | 72 |  |  |  |  | 3,652 |  |
Sovereign and supranational |  | 1,404 |  |  |  |  | 71 |  |  |  |  | 0 |  |  |  |  | 1,475 |  |
Banks/financial institutions |  | 3,455 |  |  |  |  | 233 |  |  |  |  | 180 |  |  |  |  | 3,508 |  |
Other corporate |  | 5,656 |  |  |  |  | 241 |  |  |  |  | 153 |  |  |  |  | 5,744 |  |
Total yen-denominated |  | 27,481 |  |  |  |  | 1,050 |  |  |  |  | 487 |  |  |  |  | 28,044 |  |
Dollar-denominated: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
U.S. government and agencies |  | 93 |  |  |  |  | 24 |  |  |  |  | 0 |  |  |  |  | 117 |  |
Municipalities |  | 1,045 |  |  |  |  | 156 |  |  |  |  | 6 |  |  |  |  | 1,195 |  |
Mortgage- and asset-backed securities |  | 188 |  |  |  |  | 58 |  |  |  |  | 0 |  |  |  |  | 246 |  |
Public utilities |  | 4,204 |  |  |  |  | 658 |  |  |  |  | 17 |  |  |  |  | 4,845 |  |
Sovereign and supranational |  | 476 |  |  |  |  | 123 |  |  |  |  | 2 |  |  |  |  | 597 |  |
Banks/financial institutions |  | 3,626 |  |  |  |  | 506 |  |  |  |  | 6 |  |  |  |  | 4,126 |  |
Other corporate |  | 16,300 |  |  |  |  | 1,878 |  |  |  |  | 95 |  |  |  |  | 18,083 |  |
Total dollar-denominated |  | 25,932 |  |  |  |  | 3,403 |  |  |  |  | 126 |  |  |  |  | 29,209 |  |
Total fixed maturities |  | 53,413 |  |  |  |  | 4,453 |  |  |  |  | 613 |  |  |  |  | 57,253 |  |
Perpetual securities: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Yen-denominated: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Banks/financial institutions |  | 3,635 |  |  |  |  | 193 |  |  |  |  | 161 |  |  |  |  | 3,667 |  |
Other corporate |  | 309 |  |  |  |  | 43 |  |  |  |  | 0 |  |  |  |  | 352 |  |
Dollar-denominated: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Banks/financial institutions |  | 269 |  |  |  |  | 23 |  |  |  |  | 9 |  |  |  |  | 283 |  |
Total perpetual securities |  | 4,213 |  |  |  |  | 259 |  |  |  |  | 170 |  |  |  |  | 4,302 |  |
Equity securities |  | 20 |  |  |  |  | 4 |  |  |  |  | 1 |  |  |  |  | 23 |  |
Total securities available for sale |  | $ | 57,646 |  |  |  |  | $ | 4,716 |  |  |  |  | $ | 784 |  |  |  |  | $ | 61,578 |  |
Held-to-maturity Securities |
| March 31, 2013
(In millions) | Cost or Amortized Cost |  | Gross Unrealized Gains |  | Gross Unrealized Losses |  | Fair Value
Securities held to maturity, carried at amortized cost: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Fixed maturities: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Yen-denominated: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Japan government and agencies |  | $ | 24,606 |  |  |  |  | $ | 2,154 |  |  |  |  | $ | 0 |  |  |  |  | $ | 26,760 |  |
Municipalities |  | 452 |  |  |  |  | 65 |  |  |  |  | 0 |  |  |  |  | 517 |  |
Mortgage- and asset-backed securities |  | 77 |  |  |  |  | 4 |  |  |  |  | 0 |  |  |  |  | 81 |  |
Public utilities |  | 4,532 |  |  |  |  | 202 |  |  |  |  | 222 |  |  |  |  | 4,512 |  |
Sovereign and supranational |  | 2,953 |  |  |  |  | 220 |  |  |  |  | 100 |  |  |  |  | 3,073 |  |
Banks/financial institutions |  | 8,480 |  |  |  |  | 163 |  |  |  |  | 690 |  |  |  |  | 7,953 |  |
Other corporate |  | 4,104 |  |  |  |  | 249 |  |  |  |  | 202 |  |  |  |  | 4,151 |  |
Total yen-denominated |  | 45,204 |  |  |  |  | 3,057 |  |  |  |  | 1,214 |  |  |  |  | 47,047 |  |
Total securities held to maturity |  | $ | 45,204 |  |  |  |  | $ | 3,057 |  |  |  |  | $ | 1,214 |  |  |  |  | $ | 47,047 |  |
| December 31, 2012
(In millions) | Cost or Amortized Cost |  | Gross Unrealized Gains |  | Gross Unrealized Losses |  | Fair Value
Securities held to maturity, carried at amortized cost: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Fixed maturities: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Yen-denominated: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Japan government and agencies |  | $ | 32,043 |  |  |  |  | $ | 356 |  |  |  |  | $ | 67 |  |  |  |  | $ | 32,332 |  |
Municipalities |  | 492 |  |  |  |  | 30 |  |  |  |  | 2 |  |  |  |  | 520 |  |
Mortgage- and asset-backed securities |  | 90 |  |  |  |  | 4 |  |  |  |  | 0 |  |  |  |  | 94 |  |
Public utilities |  | 4,924 |  |  |  |  | 233 |  |  |  |  | 106 |  |  |  |  | 5,051 |  |
Sovereign and supranational |  | 3,209 |  |  |  |  | 192 |  |  |  |  | 84 |  |  |  |  | 3,317 |  |
Banks/financial institutions |  | 9,211 |  |  |  |  | 211 |  |  |  |  | 431 |  |  |  |  | 8,991 |  |
Other corporate |  | 4,457 |  |  |  |  | 187 |  |  |  |  | 108 |  |  |  |  | 4,536 |  |
Total yen-denominated |  | 54,426 |  |  |  |  | 1,213 |  |  |  |  | 798 |  |  |  |  | 54,841 |  |
Total securities held to maturity |  | $ | 54,426 |  |  |  |  | $ | 1,213 |  |  |  |  | $ | 798 |  |  |  |  | $ | 54,841 |  |
Investments Classified by Contractual Maturity Date | The contractual maturities of our investments in fixed maturities at March 31, 2013, were as follows:
| Aflac Japan |  | Aflac U.S.
(In millions) | Amortized Cost |  | Fair Value |  | Amortized Cost |  | Fair Value
Available for sale: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Due in one year or less |  | $ | 715 |  |  |  |  | $ | 724 |  |  |  |  | $ | 107 |  |  |  |  | $ | 110 |  |
Due after one year through five years |  | 1,963 |  |  |  |  | 2,065 |  |  |  |  | 316 |  |  |  |  | 359 |  |
Due after five years through 10 years |  | 8,295 |  |  |  |  | 8,615 |  |  |  |  | 1,336 |  |  |  |  | 1,548 |  |
Due after 10 years |  | 30,805 |  |  |  |  | 32,172 |  |  |  |  | 8,245 |  |  |  |  | 9,562 |  |
Mortgage- and asset-backed securities |  | 813 |  |  |  |  | 903 |  |  |  |  | 40 |  |  |  |  | 51 |  |
Total fixed maturities available for sale |  | $ | 42,591 |  |  |  |  | $ | 44,479 |  |  |  |  | $ | 10,044 |  |  |  |  | $ | 11,630 |  |
Held to maturity: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Due in one year or less |  | $ | 321 |  |  |  |  | $ | 322 |  |  |  |  | $ | 0 |  |  |  |  | $ | 0 |  |
Due after one year through five years |  | 624 |  |  |  |  | 672 |  |  |  |  | 0 |  |  |  |  | 0 |  |
Due after five years through 10 years |  | 2,924 |  |  |  |  | 3,127 |  |  |  |  | 0 |  |  |  |  | 0 |  |
Due after 10 years |  | 41,258 |  |  |  |  | 42,845 |  |  |  |  | 0 |  |  |  |  | 0 |  |
Mortgage- and asset-backed securities |  | 77 |  |  |  |  | 81 |  |  |  |  | 0 |  |  |  |  | 0 |  |
Total fixed maturities held to maturity |  | $ | 45,204 |  |  |  |  | $ | 47,047 |  |  |  |  | $ | 0 |  |  |  |  | $ | 0 |  |
Economic Maturities of Investments in Perpetual Securities | The economic maturities of our investments in perpetual securities, which were all reported as available for sale at March 31, 2013, were as follows:
| Aflac Japan |  | Aflac U.S.
(In millions) | Amortized Cost |  | Fair Value |  | Amortized Cost |  | Fair Value
Due in one year or less |  | $ | 0 |  |  |  |  | $ | 0 |  |  |  |  | $ | 0 |  |  |  |  | $ | 0 |  |
Due after one year through five years |  | 1,147 |  |  |  |  | 968 |  |  |  |  | 5 |  |  |  |  | 5 |  |
Due after five years through 10 years |  | 285 |  |  |  |  | 218 |  |  |  |  | 0 |  |  |  |  | 0 |  |
Due after 10 years |  | 2,037 |  |  |  |  | 1,771 |  |  |  |  | 159 |  |  |  |  | 171 |  |
Total perpetual securities available for sale |  | $ | 3,469 |  |  |  |  | $ | 2,957 |  |  |  |  | $ | 164 |  |  |  |  | $ | 176 |  |
Bank and Financial Institution Investments | Our total investments in the bank and financial institution sector, including those classified as perpetual securities, were as follows:
| March 31, 2013 |  | December 31, 2012
| Total Investments in Banks and Financial Institutions Sector (in millions) |  | Percentage of Total Investment Portfolio |  | Total Investments in Banks and Financial Institutions Sector (in millions) |  | Percentage of Total Investment Portfolio
Fixed maturities: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Amortized cost |  | $ | 15,010 |  |  |  |  | 15 | % |  |  |  | $ | 16,292 |  |  |  |  | 14 | % |
Fair value |  | 14,924 |  |  |  |  | 14 |  |  |  |  | 16,625 |  |  |  |  | 14 |  |
Perpetual securities: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Upper Tier II: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Amortized cost |  | $ | 2,340 |  |  |  |  | 2 | % |  |  |  | $ | 2,825 |  |  |  |  | 3 | % |
Fair value |  | 2,059 |  |  |  |  | 2 |  |  |  |  | 2,919 |  |  |  |  | 3 |  |
Tier I: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Amortized cost |  | 1,008 |  |  |  |  | 1 |  |  |  |  | 1,079 |  |  |  |  | 1 |  |
Fair value |  | 856 |  |  |  |  | 1 |  |  |  |  | 1,031 |  |  |  |  | 1 |  |
Total: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Amortized cost |  | $ | 18,358 |  |  |  |  | 18 | % |  |  |  | $ | 20,196 |  |  |  |  | 18 | % |
Fair value |  | 17,839 |  |  |  |  | 17 |  |  |  |  | 20,575 |  |  |  |  | 18 |  |
Gain (Loss) on Investments | Information regarding pretax realized gains and losses from investments is as follows:
| Three Months Ended March 31,
(In millions) | 2013 |  | 2012
Realized investment gains (losses) on securities: |  |  |  |  |  |  |
Fixed maturities: |  |  |  |  |  |  |
Available for sale: |  |  |  |  |  |  |
Gross gains from sales |  | $ | 119 |  |  |  |  | $ | 14 |  |
Gross losses from sales |  | (6 | ) |  |  |  | (1 | ) |
Net gains (losses) from redemptions |  | 6 |  |  |  |  | 0 |  |
Other-than-temporary impairment losses |  | (54 | ) |  |  |  | (63 | ) |
Held to maturity: |  |  |  |  |  |  |
Net gains (losses) from redemptions |  | 0 |  |  |  |  | 0 |  |
Total fixed maturities |  | 65 |  |  |  |  | (50 | ) |
Perpetual securities: |  |  |  |  |  |  |
Available for sale: |  |  |  |  |  |  |
Gross gains from sales |  | 0 |  |  |  |  | 70 |  |
Gross losses from sales |  | 0 |  |  |  |  | (65 | ) |
Net gains (losses) from redemptions |  | 0 |  |  |  |  | 60 |  |
Other-than-temporary impairment losses |  | 0 |  |  |  |  | (140 | ) |
Total perpetual securities |  | 0 |  |  |  |  | (75 | ) |
Equity securities: |  |  |  |  |  |  |
Other-than-temporary impairment losses |  | (1 | ) |  |  |  | 0 |  |
Total equity securities |  | (1 | ) |  |  |  | 0 |  |
Derivatives and other: |  |  |  |  |  |  |
Derivative gains (losses) |  | 87 |  |  |  |  | 80 |  |
Other |  | 5 |  |  |  |  | 0 |  |
Total derivatives and other |  | 92 |  |  |  |  | 80 |  |
Total realized investment gains (losses) |  | $ | 156 |  |  |  |  | $ | (45 | ) |
Other Than Temporary Impairment Losses on Investment Securities | The following table details our pretax other-than-temporary impairment losses by investment category that resulted from our impairment evaluation process.
| Three Months Ended March 31,
(In millions) | 2013 |  | 2012 |
Perpetual securities | $ | 0 |  |  | $ | 140 |  |
Corporate bonds | 38 |  |  | 63 |  |
Sovereign and supranational | 16 |  |  | 0 |  |
Equity securities | 1 |  |  | 0 |  |
Total other-than-temporary impairment losses realized | $ | 55 |  | (1) | $ | 203 |  | (1)
(1) Includes $0 and $28 for the three-month periods ended March 31, 2013 and 2012, respectively, for credit-related impairments; $54 and $175 for the three-month periods ended March 31, 2013 and 2012, respectively, from change in intent to sell securities; and $1 for the three-month period ended March 31, 2013 for impairments due to severity and duration of decline in fair value |
Net Effect on Shareholders' Equity of Unrealized Gains and Losses from Investment Securities | The net effect on shareholders’ equity of unrealized gains and losses from investment securities was as follows:
(In millions) | March 31, 2013 |  | December 31, 2012
Unrealized gains (losses) on securities available for sale |  | $ | 3,003 |  |  |  |  | $ | 3,932 |  |
Unamortized unrealized gains on securities transferred to held to maturity |  | 17 |  |  |  |  | 20 |  |
Deferred income taxes |  | (1,039 | ) |  |  |  | (1,382 | ) |
Shareholders’ equity, unrealized gains (losses) on investment securities |  | $ | 1,981 |  |  |  |  | $ | 2,570 |  |
Investments Gross Unrealized Loss Aging | The following tables show the fair values and gross unrealized losses of our available-for-sale and held-to-maturity investments that were in an unrealized loss position, aggregated by investment category and length of time that individual securities have been in a continuous unrealized loss position.
| March 31, 2013
| Total |  | Less than 12 months |  | 12 months or longer
(In millions) | Fair Value |  | Unrealized Losses |  | Fair Value |  | Unrealized Losses |  | Fair Value |  | Unrealized Losses
Fixed Maturities: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Japan government and agencies: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Yen-denominated |  | $ | 5 |  |  |  |  | $ | 0 |  |  |  |  | $ | 5 |  |  |  |  | $ | 0 |  |  |  |  | $ | 0 |  |  |  |  | $ | 0 |  |
Municipalities: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Dollar-denominated |  | 34 |  |  |  |  | 6 |  |  |  |  | 0 |  |  |  |  | 0 |  |  |  |  | 34 |  |  |  |  | 6 |  |
Mortgage- and asset- backed securities: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Dollar-denominated |  | 9 |  |  |  |  | 0 |  |  |  |  | 9 |  |  |  |  | 0 |  |  |  |  | 0 |  |  |  |  | 0 |  |
Yen-denominated |  | 125 |  |  |  |  | 1 |  |  |  |  | 0 |  |  |  |  | 0 |  |  |  |  | 125 |  |  |  |  | 1 |  |
Public utilities: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Dollar-denominated |  | 1,154 |  |  |  |  | 31 |  |  |  |  | 1,144 |  |  |  |  | 31 |  |  |  |  | 10 |  |  |  |  | 0 |  |
Yen-denominated |  | 3,052 |  |  |  |  | 275 |  |  |  |  | 1,779 |  |  |  |  | 120 |  |  |  |  | 1,273 |  |  |  |  | 155 |  |
Sovereign and supranational: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Dollar-denominated |  | 33 |  |  |  |  | 2 |  |  |  |  | 0 |  |  |  |  | 0 |  |  |  |  | 33 |  |  |  |  | 2 |  |
Yen-denominated |  | 903 |  |  |  |  | 107 |  |  |  |  | 515 |  |  |  |  | 17 |  |  |  |  | 388 |  |  |  |  | 90 |  |
Banks/financial institutions: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Dollar-denominated |  | 347 |  |  |  |  | 8 |  |  |  |  | 318 |  |  |  |  | 7 |  |  |  |  | 29 |  |  |  |  | 1 |  |
Yen-denominated |  | 6,537 |  |  |  |  | 926 |  |  |  |  | 3,178 |  |  |  |  | 171 |  |  |  |  | 3,359 |  |  |  |  | 755 |  |
Other corporate: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Dollar-denominated |  | 7,478 |  |  |  |  | 271 |  |  |  |  | 7,350 |  |  |  |  | 263 |  |  |  |  | 128 |  |  |  |  | 8 |  |
Yen-denominated |  | 4,847 |  |  |  |  | 458 |  |  |  |  | 3,509 |  |  |  |  | 265 |  |  |  |  | 1,338 |  |  |  |  | 193 |  |
Total fixed maturities |  | 24,524 |  |  |  |  | 2,085 |  |  |  |  | 17,807 |  |  |  |  | 874 |  |  |  |  | 6,717 |  |  |  |  | 1,211 |  |
Perpetual securities: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Dollar-denominated |  | 18 |  |  |  |  | 6 |  |  |  |  | 0 |  |  |  |  | 0 |  |  |  |  | 18 |  |  |  |  | 6 |  |
Yen-denominated |  | 2,045 |  |  |  |  | 592 |  |  |  |  | 1,349 |  |  |  |  | 325 |  |  |  |  | 696 |  |  |  |  | 267 |  |
Total perpetual securities |  | 2,063 |  |  |  |  | 598 |  |  |  |  | 1,349 |  |  |  |  | 325 |  |  |  |  | 714 |  |  |  |  | 273 |  |
Equity securities |  | 1 |  |  |  |  | 0 |  |  |  |  | 0 |  |  |  |  | 0 |  |  |  |  | 1 |  |  |  |  | 0 |  |
Total |  | $ | 26,588 |  |  |  |  | $ | 2,683 |  |  |  |  | $ | 19,156 |  |  |  |  | $ | 1,199 |  |  |  |  | $ | 7,432 |  |  |  |  | $ | 1,484 |  |
| December 31, 2012
| Total |  | Less than 12 months |  | 12 months or longer
(In millions) | Fair Value |  | Unrealized Losses |  | Fair Value |  | Unrealized Losses |  | Fair Value |  | Unrealized Losses
Fixed Maturities: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Japan government and agencies: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Yen-denominated |  | $ | 17,342 |  |  |  |  | $ | 148 |  |  |  |  | $ | 17,342 |  |  |  |  | $ | 148 |  |  |  |  | $ | 0 |  |  |  |  | $ | 0 |  |
Municipalities: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Dollar-denominated |  | 34 |  |  |  |  | 6 |  |  |  |  | 1 |  |  |  |  | 0 |  |  |  |  | 33 |  |  |  |  | 6 |  |
Yen-denominated |  | 56 |  |  |  |  | 2 |  |  |  |  | 56 |  |  |  |  | 2 |  |  |  |  | 0 |  |  |  |  | 0 |  |
Mortgage- and asset- backed securities: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Dollar-denominated |  | 10 |  |  |  |  | 0 |  |  |  |  | 10 |  |  |  |  | 0 |  |  |  |  | 0 |  |  |  |  | 0 |  |
Yen-denominated |  | 136 |  |  |  |  | 1 |  |  |  |  | 0 |  |  |  |  | 0 |  |  |  |  | 136 |  |  |  |  | 1 |  |
Public utilities: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Dollar-denominated |  | 736 |  |  |  |  | 17 |  |  |  |  | 736 |  |  |  |  | 17 |  |  |  |  | 0 |  |  |  |  | 0 |  |
Yen-denominated |  | 3,920 |  |  |  |  | 178 |  |  |  |  | 1,339 |  |  |  |  | 31 |  |  |  |  | 2,581 |  |  |  |  | 147 |  |
Sovereign and supranational: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Dollar-denominated |  | 31 |  |  |  |  | 2 |  |  |  |  | 0 |  |  |  |  | 0 |  |  |  |  | 31 |  |  |  |  | 2 |  |
Yen-denominated |  | 1,244 |  |  |  |  | 84 |  |  |  |  | 507 |  |  |  |  | 13 |  |  |  |  | 737 |  |  |  |  | 71 |  |
Banks/financial institutions: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Dollar-denominated |  | 276 |  |  |  |  | 6 |  |  |  |  | 180 |  |  |  |  | 3 |  |  |  |  | 96 |  |  |  |  | 3 |  |
Yen-denominated |  | 6,918 |  |  |  |  | 611 |  |  |  |  | 1,935 |  |  |  |  | 28 |  |  |  |  | 4,983 |  |  |  |  | 583 |  |
Other corporate: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Dollar-denominated |  | 4,534 |  |  |  |  | 95 |  |  |  |  | 4,404 |  |  |  |  | 86 |  |  |  |  | 130 |  |  |  |  | 9 |  |
Yen-denominated |  | 4,013 |  |  |  |  | 261 |  |  |  |  | 1,635 |  |  |  |  | 40 |  |  |  |  | 2,378 |  |  |  |  | 221 |  |
Total fixed maturities |  | 39,250 |  |  |  |  | 1,411 |  |  |  |  | 28,145 |  |  |  |  | 368 |  |  |  |  | 11,105 |  |  |  |  | 1,043 |  |
Perpetual securities: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Dollar-denominated |  | 136 |  |  |  |  | 9 |  |  |  |  | 120 |  |  |  |  | 0 |  |  |  |  | 16 |  |  |  |  | 9 |  |
Yen-denominated |  | 1,315 |  |  |  |  | 161 |  |  |  |  | 0 |  |  |  |  | 0 |  |  |  |  | 1,315 |  |  |  |  | 161 |  |
Total perpetual securities |  | 1,451 |  |  |  |  | 170 |  |  |  |  | 120 |  |  |  |  | 0 |  |  |  |  | 1,331 |  |  |  |  | 170 |  |
Equity securities |  | 6 |  |  |  |  | 1 |  |  |  |  | 3 |  |  |  |  | 0 |  |  |  |  | 3 |  |  |  |  | 1 |  |
Total |  | $ | 40,707 |  |  |  |  | $ | 1,582 |  |  |  |  | $ | 28,268 |  |  |  |  | $ | 368 |  |  |  |  | $ | 12,439 |  |  |  |  | $ | 1,214 |  |
Bank and Financial Institution Investments in Unrealized Loss Position | The table reflects those securities in that sector that were in an unrealized loss position as a percentage of our total investment portfolio in an unrealized loss position. The table also reflects the respective unrealized losses in this sector as a percentage of total unrealized losses in our investment portfolio.
| March 31, 2013 |  | December 31, 2012
| Percentage of Total Investments in an Unrealized Loss Position |  | Percentage of Total Unrealized Losses |  | Percentage of Total Investments in an Unrealized Loss Position |  | Percentage of Total Unrealized Losses
Fixed maturities |  | 26 | % |  |  |  | 35 | % |  |  |  | 18 | % |  |  |  | 39 | % |
Perpetual securities: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Upper Tier II |  | 5 |  |  |  |  | 13 |  |  |  |  | 2 |  |  |  |  | 4 |  |
Tier I |  | 2 |  |  |  |  | 7 |  |  |  |  | 2 |  |  |  |  | 7 |  |
Total perpetual securities |  | 7 |  |  |  |  | 20 |  |  |  |  | 4 |  |  |  |  | 11 |  |
Total |  | 33 | % |  |  |  | 55 | % |  |  |  | 22 | % |  |  |  | 50 | % |
Securities Lending | The following table presents our security loans outstanding and the corresponding collateral held:
(In millions) | March 31, 2013 |  | December 31, 2012
Security loans outstanding, fair value |  | $ | 202 |  |  |  |  | $ | 6,122 |  |
Cash collateral on loaned securities |  | 207 |  |  |  |  | 6,277 |  |
The balance of our security loans outstanding was significantly lower at March 31, 2013, compared with that at December 31, 2012, due to the conclusion of a six-month securities lending program that began in the third quarter of 2012. For this particular securities lending program, we invested the cash collateral in JGBs with maturities that corresponded with the conclusion of the program. |
Perpetual Securities |  |
Schedule of Available-for-sale Securities Reconciliation | Details of our holdings of perpetual securities were as follows: Perpetual Securities
|  |  | March 31, 2013 |  | December 31, 2012
(In millions) | Credit Rating |  | Amortized Cost |  | Fair Value |  | Unrealized Gain (Loss) |  | Amortized Cost |  | Fair Value |  | Unrealized Gain (Loss)
Upper Tier II: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
| A |  |  | $ | 164 |  |  |  |  | $ | 181 |  |  |  |  | $ | 17 |  |  |  |  | $ | 460 |  |  |  |  | $ | 488 |  |  |  |  | $ | 28 |  |
| BBB |  |  | 1,911 |  |  |  |  | 1,684 |  |  |  |  | (227 | ) |  |  |  | 2,077 |  |  |  |  | 2,129 |  |  |  |  | 52 |  |
| BB or lower |  |  | 265 |  |  |  |  | 194 |  |  |  |  | (71 | ) |  |  |  | 288 |  |  |  |  | 302 |  |  |  |  | 14 |  |
Total Upper Tier II |  |  |  | 2,340 |  |  |  |  | 2,059 |  |  |  |  | (281 | ) |  |  |  | 2,825 |  |  |  |  | 2,919 |  |  |  |  | 94 |  |
Tier I: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
| BBB |  |  | 835 |  |  |  |  | 669 |  |  |  |  | (166 | ) |  |  |  | 966 |  |  |  |  | 904 |  |  |  |  | (62 | ) |
| BB or lower |  |  | 173 |  |  |  |  | 187 |  |  |  |  | 14 |  |  |  |  | 113 |  |  |  |  | 127 |  |  |  |  | 14 |  |
Total Tier I |  |  |  | 1,008 |  |  |  |  | 856 |  |  |  |  | (152 | ) |  |  |  | 1,079 |  |  |  |  | 1,031 |  |  |  |  | (48 | ) |
Other subordinated - non-banks | BBB |  |  | 285 |  |  |  |  | 218 |  |  |  |  | (67 | ) |  |  |  | 309 |  |  |  |  | 352 |  |  |  |  | 43 |  |
Total |  |  |  | $ | 3,633 |  |  |  |  | $ | 3,133 |  |  |  |  | $ | (500 | ) |  |  |  | $ | 4,213 |  |  |  |  | $ | 4,302 |  |  |  |  | $ | 89 |  |
Variable Interest Entity, Consolidated |  |
Investments in Variable Interest Entities | The following table presents the amortized cost, fair value and balance sheet caption in which the assets and liabilities of consolidated VIEs are reported. Investments in Consolidated Variable Interest Entities
| March 31, 2013 |  | December 31, 2012
(In millions) | Amortized Cost |  | Fair Value |  | Amortized Cost |  | Fair Value
Assets: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Fixed maturities, available for sale |  | $ | 4,721 |  |  |  |  | $ | 5,377 |  |  |  |  | $ | 5,058 |  |  |  |  | $ | 5,787 |  |
Perpetual securities, available for sale |  | 520 |  |  |  |  | 455 |  |  |  |  | 559 |  |  |  |  | 574 |  |
Fixed maturities, held to maturity |  | 266 |  |  |  |  | 259 |  |  |  |  | 289 |  |  |  |  | 287 |  |
Other assets |  | 158 |  |  |  |  | 158 |  |  |  |  | 191 |  |  |  |  | 191 |  |
Total assets of consolidated VIEs |  | $ | 5,665 |  |  |  |  | $ | 6,249 |  |  |  |  | $ | 6,097 |  |  |  |  | $ | 6,839 |  |
Liabilities: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Other liabilities |  | $ | 371 |  |  |  |  | $ | 371 |  |  |  |  | $ | 399 |  |  |  |  | $ | 399 |  |
Total liabilities of consolidated VIEs |  | $ | 371 |  |  |  |  | $ | 371 |  |  |  |  | $ | 399 |  |  |  |  | $ | 399 |  |
Variable Interest Entity, Not Consolidated |  |
Investments in Variable Interest Entities | VIEs-Not Consolidated The table below reflects the amortized cost, fair value and balance sheet caption in which our investment in VIEs not consolidated are reported. Investments in Variable Interest Entities Not Consolidated
| March 31, 2013 |  | December 31, 2012
(In millions) | Amortized Cost |  | Fair Value |  | Amortized Cost |  | Fair Value
Assets: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Fixed maturities, available for sale |  | $ | 6,907 |  |  |  |  | $ | 7,287 |  |  |  |  | $ | 7,738 |  |  |  |  | $ | 8,350 |  |
Perpetual securities, available for sale |  | 413 |  |  |  |  | 392 |  |  |  |  | 736 |  |  |  |  | 751 |  |
Fixed maturities, held to maturity |  | 3,521 |  |  |  |  | 3,522 |  |  |  |  | 3,829 |  |  |  |  | 3,922 |  |
Total investments in VIEs not consolidated |  | $ | 10,841 |  |  |  |  | $ | 11,201 |  |  |  |  | $ | 12,303 |  |  |  |  | $ | 13,023 |  |

X
- Definition Bank and Financial Institution Investments in Unrealized Loss Position [Table Text Block] + References No definition available. + Details
Name: | afl_BankAndFinancialInstitutionInvestmentsInUnrealizedLossPositionTableTableTextBlock
Namespace Prefix: | afl_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Bank and Financial Institution Investments [Table Text Block] + References No definition available. + Details
Name: | afl_BankAndFinancialInstitutionInvestmentsTableTextBlock
Namespace Prefix: | afl_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Economic Maturities of Investments in Perpetual Securities [Table Text Block] + References No definition available. + Details
Name: | afl_EconomicMaturitiesOfInvestmentsInPerpetualSecuritiesTableTextBlock
Namespace Prefix: | afl_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Net Effect on Shareholders' Equity of Unrealized Gains and Losses from Investment Securities [Table Text Block] + References No definition available. + Details
Name: | afl_NetEffectOnShareholdersEquityOfUnrealizedGainsAndLossesFromInvestmentSecuritiesTableTextBlock
Namespace Prefix: | afl_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Other Than Temporary Impairment Losses on Investment Securities [Table Text Block] + References No definition available. + Details
Name: | afl_OtherThanTemporaryImpairmentLossesOnInvestmentSecuritiesTableTextBlock
Namespace Prefix: | afl_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of available-for-sale securities which includes, but is not limited to, changes in the cost basis and fair value, fair value and gross unrealized gain (loss), fair values by type of security, contractual maturity and classification, amortized cost basis, contracts to acquire securities to be accounted for as available-for-sale, debt maturities, transfers to trading, change in net unrealized holding gain (loss) net of tax, continuous unrealized loss position fair value, aggregate losses qualitative disclosures, other than temporary impairment (OTTI) losses or other disclosures related to available for sale securities. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 6 -URI http://asc.fasb.org/extlink&oid=6872113&loc=d3e27290-111563 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=6872113&loc=d3e27198-111563 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Emerging Issues Task Force (EITF) -Number 03-1 -Paragraph 21 -Subparagraph a, 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 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 320 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6957658&loc=d3e62557-112803 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name FASB Staff Position (FSP) -Number FAS115-1/124-1 -Paragraph 17 -Subparagraph a, 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 Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 7 -URI http://asc.fasb.org/extlink&oid=6872113&loc=d3e27337-111563 Reference 7: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 115 -Paragraph 19, 20, 21 -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 8: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6872113&loc=d3e27161-111563 Reference 9: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 320 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=6957658&loc=d3e62586-112803 Reference 10: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 9 -URI http://asc.fasb.org/extlink&oid=6872113&loc=d3e27357-111563 + Details
Name: | us-gaap_AvailableForSaleSecuritiesTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of the realized and unrealized gains and losses reported in the statement of income which have resulted from the sale and holding of marketable securities, respectively, as well as the sale or disposal of cost method investments. Such amounts would include realized gains and losses on the sale or disposal of trading, available-for-sale, and held-to-maturity securities, unrealized gains and losses on trading securities, unrealized gains and losses on available-for-sale and held-to-maturity securities transferred to the trading securities category, realized gains and losses on the sale or disposal of cost method investments, and losses recognized for other than temporary impairments (OTTI) of such investments. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 115 -Paragraph 7, 13, 16, 22 -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 AICPA -Name Accounting Principles Board Opinion (APB) -Number 18 -Paragraph 5 -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 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 25 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=7534914&loc=d3e22054-111558 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Staff Accounting Bulletin (SAB) -Number Topic 5 -Section M Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 115 -Paragraph 21 -Subparagraph d -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 12 -Subparagraph a, 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 7: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 10 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=6872113&loc=d3e27405-111563 Reference 8: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 9 -Subparagraph (c)-(e) -URI http://asc.fasb.org/extlink&oid=6872113&loc=d3e27357-111563 Reference 9: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SAB TOPIC 5.M) -URI http://asc.fasb.org/extlink&oid=6784337&loc=d3e87990-122713 + Details
Name: | us-gaap_GainLossOnInvestmentsTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of all investments in certain debt and equity securities for which the entity has the positive intent and ability to hold until maturity. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 9 -URI http://asc.fasb.org/extlink&oid=6435544&loc=d3e41834-113960 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=7512638&loc=d3e5086-111524 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 115 -Paragraph 137 -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 320 -SubTopic 10 -Section 50 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=6872113&loc=d3e27232-111563 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 7 -URI http://asc.fasb.org/extlink&oid=6872113&loc=d3e27337-111563 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 10 -URI http://asc.fasb.org/extlink&oid=6872113&loc=d3e27405-111563 Reference 7: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 320 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=6957658&loc=d3e62586-112803 Reference 8: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 320 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6957658&loc=d3e62557-112803 Reference 9: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 6 -URI http://asc.fasb.org/extlink&oid=6872113&loc=d3e27290-111563 + Details
Name: | us-gaap_HeldToMaturitySecuritiesTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of maturities of an entity's investments as well as any other information pertinent to the investments. + References No definition available. + Details
Name: | us-gaap_InvestmentsClassifiedByContractualMaturityDateTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of the reconciliation of available-for-sale securities from cost basis to fair value. + References No definition available. + Details
Name: | us-gaap_ScheduleOfAvailableForSaleSecuritiesReconciliationTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of securities financing transactions including resale and repurchase agreements, securities borrowed and lending transactions, securities received as collateral and obligations to return securities received as collateral. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 860 -SubTopic 30 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=7523297&loc=d3e113969-111729 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 940 -SubTopic 405 -Section 55 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6476329&loc=d3e44140-110984 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 20 -Section 45 -Paragraph 11 -URI http://asc.fasb.org/extlink&oid=7472769&loc=d3e9760-107771 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03.3,13(1)) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08.(m)) -URI http://asc.fasb.org/extlink&oid=6881521&loc=d3e23780-122690 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 140 -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 7: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Audit and Accounting Guide (AAG) -Number AAG-BRD -Paragraph 30, 31, 32, 33 -IssueDate 2006-05-01 -Chapter 7 -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. + Details
Name: | us-gaap_ScheduleOfSecuritiesFinancingTransactionsTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition For all investments in an unrealized loss position, including those for which other-than-temporary impairments have not been recognized in earnings (including investments for which a portion of an other-than-temporary impairment has been recognized in other comprehensive income), a tabular disclosure of the aggregate related fair value of investments with unrealized losses and the aggregate amount of unrealized losses (that is, the amount by which amortized cost basis exceeds fair value). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 6 -URI http://asc.fasb.org/extlink&oid=6872113&loc=d3e27290-111563 + Details
Name: | us-gaap_ScheduleOfUnrealizedLossOnInvestmentsTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of the significant judgments and assumptions made in determining whether a variable interest (as defined) held by the entity requires the variable interest entity (VIE) (as defined) to be consolidated and (or) disclose information about its involvement with the VIE, individually or in aggregate (as applicable); the nature of restrictions, if any, on the consolidated VIE's assets and on the settlement of its liabilities reported by an entity in its statement of financial position, including the carrying amounts of such assets and liabilities; the nature of, and changes in, the risks associated with involvement in the VIE; how involvement with the VIE affects the entity's financial position, financial performance, and cash flows; the lack of recourse if creditors (or beneficial interest holders) of the consolidated VIE have no recourse to the general credit of the primary beneficiary (if applicable); the terms of arrangements, giving consideration to both explicit arrangements and implicit variable interests, if any, that could require the entity to provide financial support to the VIE, including events or circumstances that could expose the entity to a loss; the methodology used by the entity for determining whether or not it is the primary beneficiary of the variable interest entity; the significant factors considered and judgments made in determining that the power to direct the activities of a VIE that most significantly impact the VIE's economic performance are shared (as defined); the carrying amounts and classification of assets and liabilities of the VIE included in the statement of financial position; the entity's maximum exposure to loss, if any, as a result of its involvement with the VIE, including how the maximum exposure is determined and significant sources of the entity's exposure to the VIE; a comparison of the carrying amounts of the assets and liabilities and the entity's maximum exposure to loss; information about any liquidity arrangements, guarantees, and (or) other commitments by third parties that may affect the fair value or risk of the entity's variable interest in the VIE; whether or not the entity has provided financial support or other support (explicitly or implicitly) to the VIE that it was not previously contractually required to provide or whether the entity intends to provide that support, including the type and amount of the support and the primary reasons for providing the support; and supplemental information the entity determines necessary to provide. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name FASB Interpretation (FIN) -Number 46R -Paragraph 4 -Subparagraph g -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 Statement of Financial Accounting Standard (FAS) -Number 140 -Paragraph 35 -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 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 167 -Paragraph 22B -Appendix D Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 810 -SubTopic 10 -Section 50 -Paragraph 5A -URI http://asc.fasb.org/extlink&oid=7880789&loc=SL6759159-111685 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name FASB Staff Position (FSP) -Number FAS140-4/FIN46(R)-8 -Paragraph C4 -Subparagraph d -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 167 -Paragraph 22E -Appendix D Reference 7: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 810 -SubTopic 10 -Section 50 -Paragraph 6 -URI http://asc.fasb.org/extlink&oid=7880789&loc=d3e5747-111685 Reference 8: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 167 -Paragraph 24 -Appendix D Reference 9: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 810 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=7880789&loc=d3e5710-111685 Reference 10: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name FASB Interpretation (FIN) -Number 46R -Paragraph 2, 14, 15, 16, 23, 24, 25, 26 -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 11: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 167 -Paragraph 23A -Appendix D Reference 12: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 810 -SubTopic 10 -Section 50 -Paragraph 9 -URI http://asc.fasb.org/extlink&oid=7880789&loc=SL6228884-111685 Reference 13: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 810 -SubTopic 10 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=7880789&loc=d3e5728-111685 Reference 14: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Variable Interest Entity -URI http://asc.fasb.org/extlink&oid=6528138 + Details
Name: | us-gaap_ScheduleOfVariableInterestEntitiesTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration