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FAIR VALUE MEASUREMENTS (Tables)
3 Months Ended
Mar. 31, 2018
FAIR VALUE MEASUREMENTS  
Assets and liabilities measured at fair value on a recurring basis
March 31, 2018 CounterpartyCash
(in millions) Level 1Level 2Level 3Netting(a)CollateralTotal
Assets:
Bonds available for sale:
U.S. government and government sponsored entities$-$2,833$-$-$-$2,833
Obligations of states, municipalities and political subdivisions-15,5502,261--17,811
Non-U.S. governments2515,6899--15,723
Corporate debt-129,4681,871--131,339
RMBS-20,05015,839--35,889
CMBS-13,025584--13,609
CDO/ABS-8,8647,846--16,710
Total bonds available for sale25205,47928,410--233,914
Other bond securities:
U.S. government and government sponsored entities5942,183---2,777
Non-U.S. governments-54---54
Corporate debt-1,78419--1,803
RMBS-3911,427--1,818
CMBS-49373--566
CDO/ABS-6034,776--5,379
Total other bond securities5945,5086,295--12,397
Other equity securities(b)1,71663--1,725
Mortgage and other loans receivable------
Other invested assets(c)51292--298
Derivative assets:
Interest rate contracts-2,549---2,549
Foreign exchange contracts-7923--795
Equity contracts4814278--268
Credit contracts--2--2
Other contracts--17--17
Counterparty netting and cash collateral---(1,589)(1,268)(2,857)
Total derivative assets483,483100(1,589)(1,268)774
Short-term investments2,611483---3,094
Separate account assets85,3625,227---90,589
Total$90,361$220,187$35,100$(1,589)$(1,268)$342,791
Liabilities:
Policyholder contract deposits$-$15$3,696$-$-$3,711
Derivative liabilities:
Interest rate contracts12,18517--2,203
Foreign exchange contracts-1,2134--1,217
Equity contracts-13---13
Credit contracts-12252--264
Other contracts--5--5
Counterparty netting and cash collateral---(1,589)(980)(2,569)
Total derivative liabilities13,423278(1,589)(980)1,133
Long-term debt-2,820---2,820
Other liabilities25----25
Total$26$6,258$3,974$(1,589)$(980)$7,689

December 31, 2017 CounterpartyCash
(in millions) Level 1Level 2Level 3Netting(a)CollateralTotal
Assets:
Bonds available for sale:
U.S. government and government sponsored entities$201$2,455$-$-$-$2,656
Obligations of states, municipalities and political subdivisions-16,2402,404--18,644
Non-U.S. governments2015,6318--15,659
Corporate debt-133,0031,173--134,176
RMBS-21,09816,136--37,234
CMBS-13,217624--13,841
CDO/ABS-8,1318,651--16,782
Total bonds available for sale221209,77528,996--238,992
Other bond securities:
U.S. government and government sponsored entities2382,564---2,802
Non-U.S. governments-57---57
Corporate debt-1,89118--1,909
RMBS-4211,464--1,885
CMBS-48574--559
CDO/ABS-6044,956--5,560
Total other bond securities2386,0226,512--12,772
Equity securities available for sale:
Common stock1,061----1,061
Preferred stock18515---533
Mutual funds1104---114
Total equity securities available for sale1,189519---1,708
Other equity securities589----589
Mortgage and other loans receivable--5--5
Other invested assets(c)-1250--251
Derivative assets:
Interest rate contracts12,170---2,171
Foreign exchange contracts-8274--831
Equity contracts18825282--522
Credit contracts--1--1
Other contracts--20--20
Counterparty netting and cash collateral---(1,464)(1,159)(2,623)
Total derivative assets1893,249107(1,464)(1,159)922
Short-term investments2,078537---2,615
Separate account assets87,1415,657---92,798
Total$91,645$225,760$35,870$(1,464)$(1,159)$350,652
Liabilities:
Policyholder contract deposits$-$14$4,136$-$-$4,150
Derivative liabilities:
Interest rate contracts22,17622--2,200
Foreign exchange contracts-1,2414--1,245
Equity contracts219---21
Credit contracts-14263--277
Other contracts--5--5
Counterparty netting and cash collateral---(1,464)(1,249)(2,713)
Total derivative liabilities43,450294(1,464)(1,249)1,035
Long-term debt-2,888---2,888
Other liabilities4643---89
Total$50$6,395$4,430$(1,464)$(1,249)$8,162

(a) Represents netting of derivative exposures covered by qualifying master netting agreements.

(b) As a result of the adoption of the Recognition and Measurement of Financial Assets and Financial Liabilities standard on January 1, 2018 (Financial Instruments Recognition and Measurement Standard), equity securities are no longer classified and accounted for as available for sale securities.

(c) Excludes investments that are measured at fair value using the net asset value (NAV) per share (or its equivalent), which totaled $5.9 billion and $6.0 billion as of March 31, 2018 and December 31, 2017, respectively.

Changes in Level 3 recurring fair value measurements (Assets)
Net Changes in
Realized and Purchases, Unrealized Gains
UnrealizedSales, Reclassified (Losses) Included
Fair ValueGains (Losses)OtherIssuances andGrossGrossto AssetsFair Valuein Income on
BeginningIncludedComprehensiveSettlements,TransfersTransfersDivestedHeld forEndInstruments Held
(in millions)of Periodin IncomeIncome (Loss)NetinoutBusinessesSaleof Periodat End of Period
Three Months Ended March 31, 2018
Assets:
Bonds available for sale:
Obligations of states,
municipalities and
political subdivisions$2,404$1$(75)$(69)$-$-$-$-$2,261$-
Non-U.S. governments8(4)41----9-
Corporate debt1,173(57)10248565(68)--1,871-
RMBS16,1362665(536)-(32)--15,839-
CMBS6246(17)(23)-(6)--584-
CDO/ABS8,6518(88)(710)-(15)--7,846-
Total bonds available for sale28,996220(161)(1,089)565(121)--28,410-
Other bond securities:
Corporate debt181------19-
RMBS1,46439-(76)----1,42751
CMBS74(1)-(1)1---73(1)
CDO/ABS4,95689-(260)-(9)--4,7768
Total other bond securities6,512128-(337)1(9)--6,29558
Other equity securities(a)---3----32
Mortgage and other loans receivable5--(5)------
Other invested assets25023118----29230
Total$35,763$371$(160)$(1,410)$566$(130)$-$-$35,000$90
Net Changes in
Realized and Purchases, Unrealized Gains
UnrealizedSales, Reclassified (Losses) Included
Fair Value(Gains) LossesOtherIssuances andGrossGrossto LiabilitiesFair Valuein Income on
BeginningIncludedComprehensiveSettlements,TransfersTransfersDivestedHeld forEndInstruments Held
(in millions)of Periodin IncomeIncome (Loss)NetinoutBusinessesSaleof Periodat End of Period
Liabilities:
Policyholder contract deposits$4,136$(506)$-$66$-$-$-$-$3,696$604
Derivative liabilities, net:
Interest rate contracts22(3)-(2)----173
Foreign exchange contracts-(10)-11----13
Equity contracts(82)4------(78)(4)
Credit contracts262(10)-(2)----25010
Other contracts(15)(17)-20----(12)17
Total derivative liabilities, net(b)187(36)-27----17829
Long-term debt(c)----------
Total$4,323$(542)$-$93$-$-$-$-$3,874$633
Net Changes in
Realized and Purchases, Unrealized Gains
UnrealizedSales, Reclassified (Losses) Included
Fair ValueGains (Losses)OtherIssuances andGrossGrossto AssetsFair Valuein Income on
BeginningIncludedComprehensiveSettlements,TransfersTransfersDivestedHeld forEndInstruments Held
(in millions)of Periodin IncomeIncome (Loss)NetinoutBusinessesSaleof Periodat End of Period
Three Months Ended March 31, 2017
Assets:
Bonds available for sale:
Obligations of states,
municipalities and
political subdivisions$2,040$2$(4)$21$-$(18)$-$-$2,041$-
Non-U.S. governments17--(1)----16-
Corporate debt1,133(4)(3)(13)136(170)--1,079-
RMBS16,906289151(858)8(9)--16,487-
CMBS2,04055(348)-(699)--1,003-
CDO/ABS7,835648(102)-(32)--7,755-
Total bonds available for sale29,971298197(1,301)144(928)--28,381-
Other bond securities:
Corporate debt171------181
RMBS1,60555-(125)-(33)--1,50224
CMBS155--(17)-(73)--651
CDO/ABS5,703173-(368)----5,50870
Total other bond securities7,480229-(510)-(106)--7,09396
Equity securities available for sale:
Common stock---8----8-
Total equity securities available for sale---8----8-
Other equity securities----------
Mortgage and other loans receivable11-------11-
Other invested assets204(1)(5)(17)-(1)--180-
Total$37,666$526$192$(1,820)$144$(1,035)$-$-$35,673$96
Net Changes in
Realized and Purchases, Unrealized Gains
UnrealizedSales, Reclassified (Losses) Included
Fair Value(Gains) LossesOtherIssuances andGrossGrossto LiabilitiesFair Valuein Income on
BeginningIncludedComprehensiveSettlements,TransfersTransfersDivestedHeld forEndInstruments Held
(in millions)of Periodin IncomeIncome (Loss)NetinoutBusinessesSaleof Periodat End of Period
Liabilities:
Policyholder contract deposits$3,033$(45)$-$84$-$-$-$-$3,072$98
Derivative liabilities, net:
Interest rate contracts38(3)-(3)----323
Foreign exchange contracts11--(5)----6-
Equity contracts(58)(11)-7----(62)5
Credit contracts329(15)-1----31511
Other contracts(11)(19)-19----(11)(1)
Total derivative liabilities, net(b)309(48)-19----28018
Long-term debt(c)7112-(25)----58(2)
Total$3,413$(81)$-$78$-$-$-$-$3,410$114

(a) As a result of the adoption of the Financial Instruments Recognition and Measurement Standard on January 1, 2018, equity securities are no longer classified and accounted for as available for sale securities.

(b) Total Level 3 derivative exposures have been netted in these tables for presentation purposes only.

(c) Includes guaranteed investment agreements (GIAs), notes, bonds, loans and mortgages payable.

Changes in Level 3 recurring fair value measurements (Liabilities)
Net Changes in
Realized and Purchases, Unrealized Gains
UnrealizedSales, Reclassified (Losses) Included
Fair ValueGains (Losses)OtherIssuances andGrossGrossto AssetsFair Valuein Income on
BeginningIncludedComprehensiveSettlements,TransfersTransfersDivestedHeld forEndInstruments Held
(in millions)of Periodin IncomeIncome (Loss)NetinoutBusinessesSaleof Periodat End of Period
Three Months Ended March 31, 2018
Assets:
Bonds available for sale:
Obligations of states,
municipalities and
political subdivisions$2,404$1$(75)$(69)$-$-$-$-$2,261$-
Non-U.S. governments8(4)41----9-
Corporate debt1,173(57)10248565(68)--1,871-
RMBS16,1362665(536)-(32)--15,839-
CMBS6246(17)(23)-(6)--584-
CDO/ABS8,6518(88)(710)-(15)--7,846-
Total bonds available for sale28,996220(161)(1,089)565(121)--28,410-
Other bond securities:
Corporate debt181------19-
RMBS1,46439-(76)----1,42751
CMBS74(1)-(1)1---73(1)
CDO/ABS4,95689-(260)-(9)--4,7768
Total other bond securities6,512128-(337)1(9)--6,29558
Other equity securities(a)---3----32
Mortgage and other loans receivable5--(5)------
Other invested assets25023118----29230
Total$35,763$371$(160)$(1,410)$566$(130)$-$-$35,000$90
Net Changes in
Realized and Purchases, Unrealized Gains
UnrealizedSales, Reclassified (Losses) Included
Fair Value(Gains) LossesOtherIssuances andGrossGrossto LiabilitiesFair Valuein Income on
BeginningIncludedComprehensiveSettlements,TransfersTransfersDivestedHeld forEndInstruments Held
(in millions)of Periodin IncomeIncome (Loss)NetinoutBusinessesSaleof Periodat End of Period
Liabilities:
Policyholder contract deposits$4,136$(506)$-$66$-$-$-$-$3,696$604
Derivative liabilities, net:
Interest rate contracts22(3)-(2)----173
Foreign exchange contracts-(10)-11----13
Equity contracts(82)4------(78)(4)
Credit contracts262(10)-(2)----25010
Other contracts(15)(17)-20----(12)17
Total derivative liabilities, net(b)187(36)-27----17829
Long-term debt(c)----------
Total$4,323$(542)$-$93$-$-$-$-$3,874$633
Net Changes in
Realized and Purchases, Unrealized Gains
UnrealizedSales, Reclassified (Losses) Included
Fair ValueGains (Losses)OtherIssuances andGrossGrossto AssetsFair Valuein Income on
BeginningIncludedComprehensiveSettlements,TransfersTransfersDivestedHeld forEndInstruments Held
(in millions)of Periodin IncomeIncome (Loss)NetinoutBusinessesSaleof Periodat End of Period
Three Months Ended March 31, 2017
Assets:
Bonds available for sale:
Obligations of states,
municipalities and
political subdivisions$2,040$2$(4)$21$-$(18)$-$-$2,041$-
Non-U.S. governments17--(1)----16-
Corporate debt1,133(4)(3)(13)136(170)--1,079-
RMBS16,906289151(858)8(9)--16,487-
CMBS2,04055(348)-(699)--1,003-
CDO/ABS7,835648(102)-(32)--7,755-
Total bonds available for sale29,971298197(1,301)144(928)--28,381-
Other bond securities:
Corporate debt171------181
RMBS1,60555-(125)-(33)--1,50224
CMBS155--(17)-(73)--651
CDO/ABS5,703173-(368)----5,50870
Total other bond securities7,480229-(510)-(106)--7,09396
Equity securities available for sale:
Common stock---8----8-
Total equity securities available for sale---8----8-
Other equity securities----------
Mortgage and other loans receivable11-------11-
Other invested assets204(1)(5)(17)-(1)--180-
Total$37,666$526$192$(1,820)$144$(1,035)$-$-$35,673$96
Net Changes in
Realized and Purchases, Unrealized Gains
UnrealizedSales, Reclassified (Losses) Included
Fair Value(Gains) LossesOtherIssuances andGrossGrossto LiabilitiesFair Valuein Income on
BeginningIncludedComprehensiveSettlements,TransfersTransfersDivestedHeld forEndInstruments Held
(in millions)of Periodin IncomeIncome (Loss)NetinoutBusinessesSaleof Periodat End of Period
Liabilities:
Policyholder contract deposits$3,033$(45)$-$84$-$-$-$-$3,072$98
Derivative liabilities, net:
Interest rate contracts38(3)-(3)----323
Foreign exchange contracts11--(5)----6-
Equity contracts(58)(11)-7----(62)5
Credit contracts329(15)-1----31511
Other contracts(11)(19)-19----(11)(1)
Total derivative liabilities, net(b)309(48)-19----28018
Long-term debt(c)7112-(25)----58(2)
Total$3,413$(81)$-$78$-$-$-$-$3,410$114

(a) As a result of the adoption of the Financial Instruments Recognition and Measurement Standard on January 1, 2018, equity securities are no longer classified and accounted for as available for sale securities.

(b) Total Level 3 derivative exposures have been netted in these tables for presentation purposes only.

(c) Includes guaranteed investment agreements (GIAs), notes, bonds, loans and mortgages payable.

Schedule of net realized and unrealized gains and losses related to Level 3 items
NetNet Realized
InvestmentCapital Other
(in millions)IncomeGains (Losses)IncomeTotal
Three Months Ended March 31, 2018
Bonds available for sale$282$(62)$-$220
Other bond securities23(4)109128
Other equity securities----
Other invested assets25-(2)23
Three Months Ended March 31, 2017
Bonds available for sale$298$-$-$298
Other bond securities756148229
Other equity securities----
Other invested assets-(3)2(1)
NetNet Realized
InvestmentCapital Other
(in millions)Income(Gains) LossesIncomeTotal
Three Months Ended March 31, 2018
Policyholder contract deposits-(506)-(506)
Derivative liabilities, net-1(37)(36)
Long-term debt----
Three Months Ended March 31, 2017
Policyholder contract deposits-(45)-(45)
Derivative liabilities, net-(7)(41)(48)
Long-term debt--1212
Gross components of purchases, sales, issues and settlements, net
IssuancesPurchases, Sales,
andIssuances and
(in millions)PurchasesSalesSettlementsSettlements, Net(a)
Three Months Ended March 31, 2018
Assets:
Bonds available for sale:
Obligations of states, municipalities and political subdivisions$15$-$(84)$(69)
Non-U.S. governments2-(1)1
Corporate debt254(3)(3)248
RMBS233(5)(764)(536)
CMBS12-(35)(23)
CDO/ABS495(851)(354)(710)
Total bonds available for sale1,011(859)(1,241)(1,089)
Other bond securities:
RMBS1(5)(72)(76)
CMBS--(1)(1)
CDO/ABS-(4)(256)(260)
Total other bond securities1(9)(329)(337)
Other equity securities3--3
Mortgage and other loans receivable-(5)-(5)
Other invested assets22-(4)18
Total assets$1,037$(873)$(1,574)$(1,410)
Liabilities:
Policyholder contract deposits$-$112$(46)$66
Derivative liabilities, net(7)-3427
Long-term debt(b)----
Total liabilities$(7)$112$(12)$93
Three Months Ended March 31, 2017
Assets:
Bonds available for sale:
Obligations of states, municipalities and political subdivisions$37$(5)$(11)$21
Non-U.S. governments-(1)-(1)
Corporate debt--(13)(13)
RMBS339(244)(953)(858)
CMBS39(67)(320)(348)
CDO/ABS13-(115)(102)
Total bonds available for sale428(317)(1,412)(1,301)
Other bond securities:
RMBS98(167)(56)(125)
CMBS-(11)(6)(17)
CDO/ABS--(368)(368)
Total other bond securities98(178)(430)(510)
Equity securities available for sale8--8
Other equity securities----
Mortgage and other loans receivable----
Other invested assets1-(18)(17)
Total assets$535$(495)$(1,860)$(1,820)
Liabilities:
Policyholder contract deposits$-$70$14$84
Derivative liabilities, net--1919
Long-term debt(b)--(25)(25)
Total liabilities$-$70$8$78

(a) There were no issuances during the three-month periods ended March 31, 2018 and 2017, respectively.

(b) Includes GIAs, notes, bonds, loans and mortgages payable.

Significant unobservable inputs used for recurring fair value measurements
Fair Value at
March 31,ValuationRange
(in millions)2018TechniqueUnobservable Input(b)(Weighted Average)
Assets:
Obligations of states, municipalities
and political subdivisions$1,571Discounted cash flowYield3.82% - 4.51% (4.16%)
Corporate debt1,638Discounted cash flowYield4.74% - 13.88% (9.31%)
RMBS(a)15,679Discounted cash flowConstant prepayment rate3.71% - 12.82% (8.27%)
Loss severity40.73% - 75.96% (58.34%)
Constant default rate3.23% - 8.25% (5.74%)
Yield2.99% - 5.33% (4.16%)
CDO/ABS(a)5,200Discounted cash flowYield3.69% - 4.99% (4.34%)
CMBS456Discounted cash flowYield2.82% - 6.34% (4.58%)
Liabilities:
Embedded derivatives within
Policyholder contract deposits:
Guaranteed minimum withdrawal benefits (GMWB)1,601Discounted cash flowEquity volatility6.45% - 50.55%
Base lapse rate0.35% - 14.00%
Dynamic lapse multiplier30.00% - 170.00%
Mortality multiplier(c)40.00% - 153.00%
Utilization90.00% - 100.00%
Equity / interest-rate correlation20.00% - 40.00%
Index Annuities1,517Discounted cash flowLapse rate0.50% - 40.00%
Mortality multiplier(c)42.00% - 162.00%
Option Budget1.00% - 4.00%
Indexed Life554Discounted cash flowBase lapse rate2.00% - 19.00%
Mortality rate0.00% - 40.00%

Fair Value at
December 31,ValuationRange
(in millions)2017TechniqueUnobservable Input(b)(Weighted Average)
Assets:
Obligations of states, municipalities
and political subdivisions$1,620Discounted cash flowYield 3.55% - 4.32% (3.94%)
Corporate debt1,086Discounted cash flowYield3.26% - 12.22% (7.74%)
RMBS(a)16,156Discounted cash flowConstant prepayment rate 3.97% - 13.42% (8.69%)
Loss severity 43.15% - 77.15% (60.15%)
Constant default rate 3.31% - 8.30% (5.80%)
Yield 2.73% - 5.19% (3.96%)
CDO/ABS(a)5,254Discounted cash flowYield3.38% - 4.78% (4.08%)
CMBS487Discounted cash flowYield2.22% - 7.77% (4.99%)
Liabilities:
Embedded derivatives within
Policyholder contract deposits:
GMWB1,994Discounted cash flowEquity volatility 6.45% - 51.25%
Base lapse rate 0.35% - 14.00%
Dynamic lapse multiplier 30.00% - 170.00%
Mortality multiplier(c) 40.00% - 153.00%
Utilization90.00% - 100.00%
Equity / interest-rate correlation 20.00% - 40.00%
Index Annuities1,603Discounted cash flowLapse rate 0.50% - 40.00%
Mortality multiplier(c) 42.00% - 162.00%
Option Budget 1.00% - 4.00%
Indexed Life515Discounted cash flowBase lapse rate 2.00% - 19.00%
Mortality rate 0.00% - 40.00%

(a) Information received from third-party valuation service providers. The ranges of the unobservable inputs for constant prepayment rate, loss severity and constant default rate relate to each of the individual underlying mortgage loans that comprise the entire portfolio of securities in the RMBS and CDO securitization vehicles and not necessarily to the securitization vehicle bonds (tranches) purchased by us. The ranges of these inputs do not directly correlate to changes in the fair values of the tranches purchased by us, because there are other factors relevant to the fair values of specific tranches owned by us including, but not limited to, purchase price, position in the waterfall, senior versus subordinated position and attachment points.

(b) Represents discount rates, estimates and assumptions that we believe would be used by market participants when valuing these assets and liabilities.

(c) Mortality inputs are shown as multipliers of the 2012 Individual Annuity Mortality Basic table.

Investments in Certain Entities Carried at Fair Value Using Net Asset Value per Share
March 31, 2018December 31, 2017
Fair ValueFair Value
Using NAVUsing NAV
Per Share (orUnfundedPer Share (orUnfunded
(in millions)Investment Category Includesits equivalent)Commitmentsits equivalent)Commitments
Investment Category
Private equity funds:
Leveraged buyoutDebt and/or equity investments made as part of a transaction in which assets of mature companies are acquired from the current shareholders, typically with the use of financial leverage$1,261$719$1,243$706
Real Estate / InfrastructureInvestments in real estate properties and infrastructure positions, including power plants and other energy generating facilities238166210187
Venture capitalEarly-stage, high-potential, growth companies expected to generate a return through an eventual realization event, such as an initial public offering or sale of the company14513313473
DistressedSecurities of companies that are in default, under bankruptcy protection, or troubled 1094311342
OtherIncludes multi-strategy, mezzanine and other strategies492198428219
Total private equity funds2,2451,2592,1281,227
Hedge funds:
Event-drivenSecurities of companies undergoing material structural changes, including mergers, acquisitions and other reorganizations1,074-1,128-
Long-shortSecurities that the manager believes are undervalued, with corresponding short positions to hedge market risk1,196-1,233-
MacroInvestments that take long and short positions in financial instruments based on a top-down view of certain economic and capital market conditions1,045-1,011-
DistressedSecurities of companies that are in default, under bankruptcy protection or troubled 17082668
OtherIncludes investments held in funds that are less liquid, as well as other strategies which allow for broader allocation between public and private investments20432314
Total hedge funds3,689113,86912
Total$5,934$1,270$5,997$1,239
Gains or losses related to the eligible instruments for which AIG elected the fair value option
Three Months Ended March 31,Gain (Loss)
(in millions)20182017
Assets:
Bond and equity securities$23$349
Alternative investments(a)128181
Liabilities:
Long-term debt(b)52(15)
Total gain$203$515

(a) Includes certain hedge funds, private equity funds and other investment partnerships.

(b) Includes GIAs, notes, bonds and mortgages payable.

Difference between fair values and aggregate contractual principal amounts, fair value option
March 31, 2018December 31, 2017
OutstandingOutstanding
(in millions)Fair ValuePrincipal AmountDifferenceFair ValuePrincipal AmountDifference
Assets:
Mortgage and other loans receivable$-$-$-$5$5$-
Liabilities:
Long-term debt*$2,820$2,311$509$2,888$2,280$608

* Includes GIAs, notes, bonds, loans and mortgages payable.

Fair value assets measured on nonrecurring basis and impairment charges
Assets at Fair ValueImpairment Charges
Non-Recurring BasisThree Months Ended March 31,
(in millions) Level 1 Level 2 Level 3 Total 20182017
March 31, 2018
Other investments$-$-$95$95$28$17
Investments in life settlements-----41
Other assets*-----35
Total$-$-$95$95$28$93
December 31, 2017
Other investments$-$-$55$55
Investments in life settlements----
Other assets----
Total$-$-$55$55

* Impairments in 2017 included $35 million related to other assets of $179 million that were reclassified to assets held for sale.

Carrying values and estimated fair values of AIG's financial instruments
Estimated Fair ValueCarrying
(in millions)Level 1Level 2Level 3TotalValue
March 31, 2018
Assets:
Mortgage and other loans receivable$-$114$38,558$38,672$38,540
Other invested assets-7646770767
Short-term investments-11,522-11,52211,522
Cash2,103--2,1032,103
Liabilities:
Policyholder contract deposits associated
with investment-type contracts-373121,648122,021117,265
Other liabilities-3,210-3,2103,210
Long-term debt-24,4884,50728,99530,799
December 31, 2017
Assets:
Mortgage and other loans receivable$-$117$37,644$37,761$37,018
Other invested assets-5906596593
Short-term investments-7,771-7,7717,771
Cash2,362--2,3622,362
Liabilities:
Policyholder contract deposits associated
with investment-type contracts-387121,809122,196114,326
Other liabilities-4,494-4,4944,494
Long-term debt-23,9304,31328,24328,752