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BUSINESS SEGMENT INFORMATION (Tables) | 9 Months Ended
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Sep. 30, 2017
Segment Reporting [Abstract] |
Reconciliation of Revenue from Segments to Consolidated |
| Three Months Ended September 30, |  | Nine Months Ended September 30, |
(In millions) | 2017 |  | 2016 |  | 2017 |  | 2016 |
Revenues: |  |  |  |  |  |  |  |
Aflac Japan: |  |  |  |  |  |  |  |
Net earned premiums | $ | 3,200 |  |  | $ | 3,596 |  |  | $ | 9,616 |  |  | $ | 10,177 |  |
Net investment income, less amortized hedge costs (1) | 561 |  |  | 607 |  |  | 1,676 |  |  | 1,802 |  |
Other income | 11 |  |  | 10 |  |  | 31 |  |  | 29 |  |
Total Aflac Japan | 3,772 |  |  | 4,213 |  |  | 11,323 |  |  | 12,008 |  |
Aflac U.S.: |  |  |  |  |  |  |  |
Net earned premiums | 1,393 |  |  | 1,365 |  |  | 4,172 |  |  | 4,093 |  |
Net investment income | 181 |  |  | 176 |  |  | 539 |  |  | 526 |  |
Other income | 1 |  |  | 1 |  |  | 3 |  |  | 5 |  |
Total Aflac U.S. | 1,575 |  |  | 1,542 |  |  | 4,714 |  |  | 4,624 |  |
Other business segments | 69 |  |  | 71 |  |  | 204 |  |  | 207 |  |
Total business segment revenues | 5,416 |  |  | 5,826 |  |  | 16,241 |  |  | 16,839 |  |
Corporate and eliminations | 19 |  |  | 20 |  |  | 59 |  |  | 63 |  |
Total operating revenues | 5,435 |  |  | 5,846 |  |  | 16,300 |  |  | 16,902 |  |
Realized investment gains (losses) (1), (2), (3) | 71 |  |  | (130 | ) |  | (57 | ) |  | (298 | ) |
Total revenues | $ | 5,506 |  |  | $ | 5,716 |  |  | $ | 16,243 |  |  | $ | 16,604 |  |
(1) Amortized hedge costs related to hedging U.S. dollar-denominated investments held in Aflac Japan were $60 and $54 for the three-month periods and $168 and $123 for the nine-month periods ended September 30, 2017, and 2016, respectively, and have been reclassified from realized investment gains (losses) and reported as a deduction from net investment income when analyzing segment operations to conform to current year reporting. (2) Excluding a gain of $19 and $20 for the three-month periods and $60 and $64 for the nine-month periods ended September 30, 2017, and 2016, respectively, related to the interest rate component of the change in fair value of foreign currency swaps on notes payable which is classified as an operating gain when analyzing segment operations (3) Prior year foreign currency transaction gains and losses have been reclassified from other non-operating income (loss) to realized investment gains (losses) to conform to current-year reporting classifications. These reclassifications had no impact on total revenues.
Reconciliation of Operating Profit (Loss) from Segments to Consolidated |
| Three Months Ended September 30, |  | Nine Months Ended September 30, |
(In millions) | 2017 |  | 2016 |  | 2017 |  | 2016 |
Pretax earnings: |  |  |  |  |  |  |  |
Aflac Japan (1) | $ | 748 |  |  | $ | 827 |  |  | $ | 2,308 |  |  | $ | 2,436 |  |
Aflac U.S. | 316 |  |  | 323 |  |  | 956 |  |  | 946 |  |
Other business segments | 5 |  |  | 4 |  |  | 9 |  |  | 12 |  |
Total business segment pretax operating earnings | 1,069 |  |  | 1,154 |  |  | 3,273 |  |  | 3,394 |  |
Interest expense, noninsurance operations | (30 | ) |  | (31 | ) |  | (89 | ) |  | (90 | ) |
Corporate and eliminations | (25 | ) |  | (31 | ) |  | (70 | ) |  | (91 | ) |
Pretax operating earnings | 1,014 |  |  | 1,092 |  |  | 3,114 |  |  | 3,213 |  |
Realized investment gains (losses) (1), (2), (3) | 71 |  |  | (130 | ) |  | (57 | ) |  | (298 | ) |
Other non-operating income (loss) (3) | (10 | ) |  | 1 |  |  | (38 | ) |  | (1 | ) |
Total earnings before income taxes | $ | 1,075 |  |  | $ | 963 |  |  | $ | 3,019 |  |  | $ | 2,914 |  |
Income taxes applicable to pretax operating earnings | $ | 338 |  |  | $ | 379 |  |  | $ | 1,031 |  |  | $ | 1,112 |  |
Effect of foreign currency translation on after-tax operating earnings | (29 | ) |  | 61 |  |  | (31 | ) |  | 110 |  |
(1) Amortized hedge costs related to hedging U.S. dollar-denominated investments held in Aflac Japan were $60 and $54 for the three-month periods and $168 and $123 for the nine-month periods ended September 30, 2017, and 2016, respectively, and have been reclassified from realized investment gains (losses) and reported as a deduction from pretax operating earnings when analyzing segment operations to conform to current year reporting. (2) Excluding a gain of $19 and $20 for the three-month periods and $60 and $64 for the nine-month periods ended September 30, 2017, and 2016, respectively, related to the interest rate component of the change in fair value of foreign currency swaps on notes payable which is classified as an operating gain when analyzing segment operations (3) Prior year foreign currency transaction gains and losses have been reclassified from other non-operating income (loss) to realized investment gains (losses) to conform to current-year reporting classifications. These reclassifications had no impact on total earnings before income taxes.
Reconciliation of Assets from Segment to Consolidated | Assets were as follows:
(In millions) | September 30, 2017 |  | December 31, 2016
Assets: |  |  |  |  |  |  |
Aflac Japan |  | $ | 113,625 |  |  |  |  | $ | 107,858 |  |
Aflac U.S. |  | 20,348 |  |  |  |  | 19,453 |  |
Other business segments |  | 513 |  |  |  |  | 270 |  |
Total business segment assets |  | 134,486 |  |  |  |  | 127,581 |  |
Corporate and eliminations |  | 1,597 |  |  |  |  | 2,238 |  |
Total assets |  | $ | 136,083 |  |  |  |  | $ | 129,819 |  |

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