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INVESTMENTS (Tables)
12 Months Ended
Dec. 31, 2020
Schedule Of Net Investment Income
The components of net investment income for the years ended December 31 were as follows:
(In millions)202020192018
Fixed maturity securities$3,113 $3,141 $3,142 
Equity securities29 37 38 
Commercial mortgage and other loans545 468 333 
Other investments145 53 36 
Short-term investments and cash equivalents18 56 41 
Gross investment income3,850 3,755 3,590 
Less investment expenses212 177 148 
Net investment income$3,638 $3,578 $3,442 
Available-for-Sale Debt Securities
The amortized cost for the Company's investments in fixed maturity securities, the cost for equity securities and the fair values of these investments at December 31 are shown in the following tables.
  2020
(In millions)
Amortized
Cost
Allowance for Credit LossesGross
Unrealized
Gains
Gross
Unrealized
Losses
  Fair
  Value
Securities available for sale, carried at fair
value through other comprehensive income:
Fixed maturity securities:
  Yen-denominated:
Japan government and agencies$32,959 $0 $4,182 $52 $37,089 
Municipalities1,324 0 374 5 1,693 
Mortgage- and asset-backed securities342 0 27 1 368 
Public utilities4,777 0 1,096 1 5,872 
Sovereign and supranational981 0 108 0 1,089 
Banks/financial institutions7,552 0 886 102 8,336 
Other corporate8,114 0 1,747 37 9,824 
Total yen-denominated56,049 0 8,420 198 64,271 
  U.S. dollar-denominated:
U.S. government and agencies245 016 0 261 
Municipalities1,154 0173 2 1,325 
Mortgage- and asset-backed securities667 08 5 670 
Public utilities4,013 0947 15 4,945 
Sovereign and supranational232 064 3 293 
Banks/financial institutions2,973 0758 7 3,724 
Other corporate26,297 384,385 251 30,393 
Total U.S. dollar-denominated35,581 386,351 283 41,611 
Total securities available for sale$91,630 $38 $14,771 $481 $105,882 





 
2019
(In millions)
Amortized
Cost
Gross
Unrealized
Gains
Gross
Unrealized
Losses
  Fair
  Value
Securities available for sale, carried at fair value
through other comprehensive income:
Fixed maturity securities:
  Yen-denominated:
Japan government and agencies$30,929 $5,169 $$36,098 
Municipalities516 116 629 
Mortgage- and asset-backed securities229 25 254 
Public utilities1,855 406 2,261 
Sovereign and supranational680 50 730 
Banks/financial institutions6,152 700 86 6,766 
Other corporate5,323 944 24 6,243 
Total yen-denominated45,684 7,410 113 52,981 
  U.S dollar-denominated:
U.S. government and agencies293 302 
Municipalities1,077 141 1,218 
Mortgage- and asset-backed securities149 156 
Public utilities3,804 725 10 4,519 
Sovereign and supranational239 73 312 
Banks/financial institutions2,879 646 3,521 
Other corporate25,246 3,255 248 28,253 
Total U.S. dollar-denominated33,687 4,856 262 38,281 
Total securities available for sale$79,371 $12,266 $375 $91,262 
Held-to-Maturity Securities
  2020
(In millions)
Amortized
Cost
Allowance for Credit LossesNet Carrying AmountGross
Unrealized
Gains
Gross
Unrealized
Losses
Fair  
Value  
Securities held to maturity, carried at
amortized cost:
Fixed maturity securities:
  Yen-denominated:
Japan government and agencies$23,448 $3 $23,445 $5,625 $0 $29,070 
Municipalities377 0 377 122 0 499 
Public utilities48 1 47 14 0 61 
Sovereign and supranational577 6 571 165 0 736 
Other corporate24 0 24 9 0 33 
Total yen-denominated24,474 10 24,464 5,935 0 30,399 
Total securities held to maturity$24,474 $10 24,464 $5,935 $0 $30,399 
  2019
(In millions)
Amortized
Cost
Gross
Unrealized
Gains
Gross
Unrealized
Losses
Fair
Value
Securities held to maturity, carried at
amortized cost:
Fixed maturity securities:
  Yen-denominated:
Japan government and agencies$22,241 $6,050 $$28,291 
Municipalities821 262 1,083 
Mortgage- and asset-backed securities16 17 
Public utilities2,535 419 2,954 
Sovereign and supranational1,123 197 1,320 
Banks/financial institutions916 105 1,018 
Other corporate2,433 485 2,911 
Total yen-denominated30,085 7,519 10 37,594 
Total securities held to maturity$30,085 $7,519 $10 $37,594 
Equity Securities, FV-NI
  
20202019
(In millions)Fair ValueFair Value
Equity securities, carried at fair value through net earnings:
Equity securities:
      Yen-denominated$680 $658 
      U.S. dollar-denominated603 144 
Total equity securities$1,283 $802 
Investments Classified by Contractual Maturity Date
The contractual and economic maturities of the Company's investments in fixed maturity securities at December 31, 2020, were as follows:
(In millions)
Amortized
Cost (1)
Fair
Value
Available for sale:
Due in one year or less$1,130 $1,125 
Due after one year through five years8,750 9,020 
Due after five years through 10 years13,752 15,945 
Due after 10 years66,951 78,754 
Mortgage- and asset-backed securities1,009 1,038 
Total fixed maturity securities available for sale$91,592 $105,882 
Held to maturity:
Due in one year or less$$
Due after one year through five years
Due after five years through 10 years2,212 2,594 
Due after 10 years22,252 27,805 
Mortgage- and asset-backed securities
Total fixed maturity securities held to maturity$24,464 $30,399 
(1) Net of allowance for credit losses
Investment Exposures Exceeding 10 Percent Shareholders Equity
Investment exposures that individually exceeded 10% of shareholders' equity as of December 31 were as follows:
20202019
(In millions)Credit
Rating
Amortized
Cost
Fair
Value
Credit
Rating
Amortized
Cost
Fair
Value
Japan National Government(1)
A+$55,153$64,657A+$51,726$62,584
(1)Japan Government Bonds (JGBs) or JGB-backed securities
Gain (Loss) on Investments Information regarding pretax net gains and losses from investments for the years ended December 31 follows:
(In millions)202020192018
Net investment gains (losses):
Sales and redemptions:
Fixed maturity securities available for sale:
Gross gains from sales$31 $115 $101 
Gross losses from sales(47)(68)(156)
Foreign currency gains (losses) on sales and redemptions(69)(16)73 
Total sales and redemptions(85)31 18 
Equity securities184 101 

(131)
Loan loss reserves (1)
0 (18)(19)
Credit losses:
Fixed maturity securities available for sale (2)
(75)(13)(64)
Fixed maturity securities held to maturity1 0
Commercial mortgage and other loans(103)0
Loan commitments(21)0
Reinsurance recoverables and other(2)0
Total credit losses(200)(13)(64)
Derivatives and other:
Derivative gains (losses)399 (174)(224)
Foreign currency gains (losses)(568)(62)(10)
Total derivatives and other(169)(236)(234)
Total net investment gains (losses)$(270)$(135)$(430)
(1) U.S. GAAP guidance adopted as of January 1, 2020 has superseded these losses, included for comparative purposes only
(2) Includes other-than-temporary impairment losses for prior year
Unrealized Gain (Loss) on Investments
Information regarding changes in unrealized gains and losses from investments recorded in AOCI for the years ended December 31 follows:
(In millions)202020192018
Changes in unrealized gains (losses):
Fixed maturity securities, available for sale$2,399 $5,852 $(3,142)
Total change in unrealized gains (losses)$2,399 $5,852 $(3,142)
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 fixed maturity securities at December 31 was as follows:
(In millions)20202019
Unrealized gains (losses) on securities available for sale$14,290 $11,891 
Deferred income taxes(3,929)(3,343)
Shareholders’ equity, unrealized gains (losses) on fixed maturity securities$10,361 $8,548 
Investments Gross Unrealized Loss Aging
The following tables show the fair values and gross unrealized losses of the Company's available-for-sale investments for the period ended December 31, 2020 and available-for-sale and held-to-maturity investments for prior periods 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 that were in an unrealized loss position.
 
  2020
  TotalLess than 12 months12 months or longer
(In millions)Fair
Value
Unrealized
Losses
Fair
Value
Unrealized
Losses
Fair
Value
Unrealized
Losses
Fixed maturity securities available
for sale:
  Japan government and
agencies:
  Yen-denominated$2,604 $52 $2,604 $52 $0 $0 
  Municipalities:
  U.S. dollar-denominated94 2 94 2 0 0 
  Yen-denominated183 5 169 4 14 1 
Mortgage- and asset-
backed securities:
  U.S. dollar-denominated360 5 360 5 0 0 
  Yen-denominated37 1 37 1 0 0 
  Public utilities:
  U.S. dollar-denominated326 15 208 7 118 8 
  Yen-denominated135 1 135 1 0 0 
  Sovereign and supranational:
  U.S. dollar-denominated39 3 39 3 0 0 
  Banks/financial institutions:
  U.S. dollar-denominated82 7 44 1 38 6 
  Yen-denominated1,809 102 765 36 1,044 66 
  Other corporate:
  U.S. dollar-denominated4,499 251 2,157 59 2,342 192 
  Yen-denominated 613 37 290 13 323 24 
  Total$10,781 $481 $6,902 $184 $3,879 $297 
  2019
  TotalLess than 12 months12 months or longer
(In millions)Fair
Value
Unrealized
Losses
Fair
Value
Unrealized
Losses
Fair
Value
Unrealized
Losses
Fixed maturity securities:
  Municipalities:
  Yen-denominated$80 $$80 $$$
  Public utilities:
  U.S. dollar-denominated306 10 69 237 
  Banks/financial institutions:
  U.S. dollar-denominated79 18 61 
  Yen-denominated1,828 89 1,828 89 
  Other corporate:
  U.S. dollar-denominated4,261 248 792 53 3,469 195 
  Yen-denominated636 31 636 31 
  Total $7,190 $385 $3,423 $178 $3,767 $207 
Commercial Mortgage and Other Loans by Property Type The table below reflects the composition of the carrying value for commercial mortgage and other loans by property type as of December 31.
(In millions)20202019
Amortized Cost% of TotalAmortized Cost% of Total
Commercial Mortgage and other loans
  Transitional real estate loans:
    Office$2,115 19.7 %$1,800 18.7 %
    Retail125 1.2 131 1.4 
    Apartments/Multi-Family1,782 16.6 2,085 21.7 
    Industrial85 .8 256 2.7 
    Hospitality1,106 10.3 1,036 10.8 
    Other81 .7 164 1.7 
        Total transitional real estate loans5,294 49.3 5,472 57.0 
Commercial mortgage loans:
     Office401 3.7 410 4.3 
     Retail340 3.2 348 3.5 
     Apartments/Multi-Family588 5.5 569 5.9 
     Industrial391 3.6 383 4.0 
        Total commercial mortgage loans1,720 16.0 1,710 17.7 
Middle market loans3,720 34.7 2,432 25.3 
        Total commercial mortgage and other loans$10,734 100.0 %$9,614 100.0 %
Allowance for credit losses(180)(45)
(1)
              Total net commercial mortgage and other loans$10,554 $9,569 
(1) U.S. GAAP guidance adopted as of January 1, 2020 has superseded these losses, included for comparative purposes only.
Allowance for Loan Losses by Portfolio Segment
The following table presents the roll forward of the allowance for credit losses by portfolio segment for the year ended December 31, 2020.

(In millions)Transitional Real Estate LoansCommercial Mortgage LoansMiddle Market LoansHeld to Maturity SecuritiesAvailable for Sale SecuritiesReinsurance Recoverables
Balance at December 31, 2019 (1)
$(22)$(3)$(20)$$$
Transition impact to retained earnings(2)(8)(33)(10)(11)
(Addition to) release of allowance for credit
losses
(39)(21)(41)(75)(1)
Write-offs, net of recoveries37 
Balance at December 31, 2020$(63)$(32)$(85)$(10)$(38)$(12)
(1) U.S. GAAP guidance adopted as of January 1, 2020 has superseded these losses, included for comparative purposes only.
Other Investments
The table below reflects the composition of the carrying value for other investments as of December 31.
(In millions)20202019
Other investments:
Policy loans$260 $250 
Short-term investments (1)
1,139 628 
Limited partnerships1,004 569 
Other26 30 
Total other investments$2,429 $1,477 
(1) Includes securities lending collateral
Securities Lending Transactions Accounted for as Secured Borrowings
Details of collateral by loaned security type and remaining maturity of the agreements as of December 31 were as follows:
Securities Lending Transactions Accounted for as Secured Borrowings
Remaining Contractual Maturity of the Agreements
20202019
(In millions)
Overnight
and
Continuous
(1)
Up to 30
days
Total
Overnight
and
Continuous
(1)
Up to 30
days
Total
Securities lending transactions:
Fixed maturity securities:
Japan government and
agencies
$0 $0 $0 $$1,013 $1,013 
Public utilities57 0 57 35 35 
Sovereign and supranational3 0 3 
Banks/financial institutions63 0 63 48 48 
Other corporate841 0 841 778 778 
          Total borrowings$964 $0 $964 $863 $1,013 $1,876 
Gross amount of recognized liabilities for securities
lending transactions
$964 $1,876 
(1) The related loaned security, under the Company's Aflac U.S. securities lending program, can be returned to the Company at the transferee's discretion; therefore, they are classified as Overnight and Continuous.
In connection with securities lending, in addition to cash collateral received, the Company received from counterparties securities collateral of $6,654 million and $4,759 million at December 31, 2020 and 2019, respectively, which may not be sold or re-pledged, unless the counterparty is in default. Such securities collateral is not reflected on the consolidated financial statements.
Variable Interest Entity, Consolidated  
Investments in Variable Interest Entities The following table presents the cost or amortized cost, fair value and balance sheet caption in which the assets and liabilities of consolidated VIEs are reported as of December 31.
Investments in Consolidated Variable Interest Entities
  20202019
(In millions)
Amortized
Cost (1)
Fair
Value
Amortized
Cost
Fair
Value
Assets:
Fixed maturity securities, available for sale$3,487 $4,596 $3,308 $4,312 
Commercial mortgage and other loans8,964 9,040 7,956 8,015 
Other investments (2)
826 826 494 494 
Other assets (3)
133 133 169 169 
Total assets of consolidated VIEs$13,410 $14,595 $11,927 $12,990 
Liabilities:
Other liabilities (3)
$231 $231 $126 $126 
Total liabilities of consolidated VIEs$231 $231 $126 $126 
(1) Net of allowance for credit losses
(2) Consists entirely of alternative investments in limited partnerships
(3) Consists entirely of derivatives
Variable Interest Entity, Not Consolidated  
Investments in Variable Interest Entities
The table below reflects the amortized cost, fair value and balance sheet caption in which the Company's investment in VIEs not consolidated are reported as of December 31.

Investments in Variable Interest Entities Not Consolidated
20202019
(In millions)Amortized
Cost
Fair
Value
Amortized
Cost
Fair
Value
Assets:
Fixed maturity securities, available for sale$5,477 $6,767 $4,129 $4,884 
Fixed maturity securities, held to maturity0 0 1,848 2,236 
Other investments (1)
178 178 75 74 
Total investments in VIEs not consolidated$5,655 $6,945 $6,052 $7,194 
(1) Consists entirely of alternative investments in limited partnerships
Transitional real estate loans  
Financing Receivable Credit Quality Indicators
The following tables present as of December 31, 2020 the amortized cost basis of TREs, CMLs and MMLs by year of origination and credit quality indicator.
Transitional Real Estate Loans
(In millions)20202019201820172016PriorTotal
Loan-to-Value Ratio:
0%-59.99%$79 $670 $397 $159 $20 $29 $1,354 
60%-69.99%214 857 722 372 2,165 
70%-79.99%84 754 673 224 14 1,749 
80% or greater26 26 
Total$403 $2,281 $1,792 $755 $34 $29 $5,294 
Commercial mortgage loans  
Financing Receivable Credit Quality Indicators
Commercial Mortgage Loans
(In millions)20202019201820172016TotalWeighted-Average DSCR
Loan-to-Value Ratio:
0%-59.99%$31 $400 $100 $69 $554 $1,154 2.59
60%-69.99%31 223 70 161 485 1.94
70%-79.99%33 22 55 1.76
80% or greater26 26 1.66
Total$62 $656 $170 $69 $763 $1,720 2.37
Weighted Average DSCR2.002.522.212.582.27
Middle market loans  
Financing Receivable Credit Quality Indicators
Middle Market Loans
(In millions)20202019201820172016PriorRevolving LoansTotal
Credit Ratings:
BBB$36 $71 $51 $33 $$$20 $215 
BB269 247 211 93 37 15 90 962 
B483 615 325 219 127 23 170 1,962 
CCC95 89 97 89 31 27 84 512 
CC39 43 
C and lower18 26 
Total$891 $1,022 $702 $473 $202 $65 $365 $3,720