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Investments and Derivative Instruments Level 3 (Tables) - USD ($)
$ in Millions
 3 Months Ended 6 Months Ended
Jun. 30, 2016
Jun. 30, 2015
Jun. 30, 2016
Jun. 30, 2015
Investments [Abstract]        
Realized Gain (Loss) on Investments [Table Text Block]    
Net Realized Capital Gains (Losses)
 
Three Months Ended June 30,
Six Months Ended June 30,
(Before-tax)
2016
2015
2016
2015
Gross gains on sales
$
61

$
65

$
91

$
184

Gross losses on sales
(13
)
(53
)
(60
)
(148
)
Net OTTI losses recognized in earnings
(1
)
(2
)
(11
)
(8
)
Valuation allowances on mortgage loans
—

—

—

(4
)
Periodic net coupon settlements on credit derivatives
(1
)
2

—

3

Results of variable annuity hedge program
 
 
 
 
GMWB derivatives, net
3

(4
)
(14
)
(3
)
Macro hedge program
(20
)
(23
)
(34
)
(27
)
Total results of variable annuity hedge program
(17
)
(27
)
(48
)
(30
)
Modified coinsurance reinsurance contracts
(25
)
37

(47
)
26

Other, net [1]
(1
)
(9
)
(39
)
(19
)
Net realized capital losses
$
3

$
13

$
(114
)
$
4


[1]
Primarily consists of changes in value of non-qualifying derivatives and transactional foreign currency revaluation gains (losses). For the three months ended June 30, 2016 and 2015, transactional foreign currency revaluation gains (losses) were $(64) and $16, respectively, and related to yen denominated fixed payout annuity liabilities, which were largely offset by gains (losses) of $60 and $(17), respectively, on derivative instruments used to hedge the foreign currency exposure. For the six months ended June 30, 2016 and 2015, the transactional foreign currency revaluation gains (losses) were $(108) and $16, respectively, which were largely offset by gains (losses) of $96 and $(31), respectively, on the related hedging instruments.
Net realized capital gains and losses from investment sales, are reported as a component of revenues and are determined on a specific identification basis. Before tax, net gains and losses on sales and impairments previously reported as unrealized gains in AOCI were $47 and $21, respectively, for the three and six months ended June 30, 2016, and $16 and $34 for the three and six months ended June 30, 2015, respectively. Proceeds from sales of AFS securities totaled $1.7 billion and $3.9 billion, respectively, for the three and six months ended June 30, 2016, and $2.5 billion and $5.6 billion for the three and six months ended June 30, 2015, respectively.
  
Other than Temporary Impairment, Credit Losses Recognized in Earnings [Table Text Block]    
 
Three Months Ended June 30,
Six Months Ended June 30,
(Before-tax)
2016
2015
2016
2015
Balance as of beginning of period
$
(215
)
$
(288
)
$
(211
)
$
(296
)
Additions for credit impairments recognized on [1]:
 
 
 
 
Securities not previously impaired
—

—

(8
)
(2
)
Securities previously impaired
(1
)
—

(1
)
—

Reductions for credit impairments previously recognized on:
 
 
 
 
Securities that matured or were sold during the period
26

3

26

5

Securities due to an increase in expected cash flows
9

15

13

22

Securities the Company made the decision to sell or more likely than not will be required to sell
—

—

—

1

Balance as of end of period
$
(181
)
$
(270
)
$
(181
)
$
(270
)
[1]
These additions are included in the net OTTI losses recognized in earnings in the Condensed Consolidated Statements of Operations.
  
Offsetting Liabilities [Table Text Block]    
 
Gross Amounts of Recognized Liabilities
 
Gross Amounts Offset in the Statement of Financial Position
 
Derivative Liabilities [3]
 
Accrued Interest and Cash Collateral Pledged [3]
 
Financial Collateral Pledged [4]
 
Net Amount
Description
 
 
 
 
 
 
 
 
 
 
 
Other liabilities
$
(1,490
)
 
$
(696
)
 
$
(505
)
 
$
(289
)
 
$
(777
)
 
$
(17
)
 
Gross Amounts of Recognized Liabilities
 
Gross Amounts Offset in the Statement of Financial Position
 
Derivative Liabilities [3]
 
Accrued Interest and Cash Collateral Pledged [3]
 
Financial Collateral Pledged [4]
 
Net Amount
Description
 
 
 
 
 
 
 
 
 
 
 
Other liabilities
$
(1,255
)
 
$
(499
)
 
$
(653
)
 
$
(103
)
 
$
(753
)
 
$
(3
)
  
Schedule of Available-for-sale Securities Reconciliation [Table Text Block]    
Available-for-Sale Securities
The following table presents the Company’s AFS securities by type.
 
June 30, 2016
December 31, 2015
 
Cost or Amortized Cost
Gross Unrealized Gains
Gross Unrealized Losses
Fair Value
Non-Credit OTTI [1]
Cost or Amortized Cost
Gross Unrealized Gains
Gross Unrealized Losses
Fair Value
Non-Credit OTTI [1]
ABS
$
1,035

$
18

$
(34
)
$
1,019

$
—

$
864

$
16

$
(34
)
$
846

$
—

CDOs [2]
1,223

56

(11
)
1,269

—

1,354

67

(11
)
1,408

—

CMBS
2,066

91

(11
)
2,146

(2
)
1,936

52

(24
)
1,964

(3
)
Corporate
14,051

1,619

(76
)
15,594

(9
)
14,425

975

(225
)
15,175

(3
)
Foreign govt./govt. agencies
272

27

(3
)
296

—

328

14

(11
)
331

—

Municipal
1,090

192

—

1,282

—

1,057

80

(5
)
1,132

—

RMBS
1,686

54

(8
)
1,732

—

1,468

43

(8
)
1,503

—

U.S. Treasuries
1,969

393

—

2,362

—

2,127

184

(13
)
2,298

—

Total fixed maturities, AFS
23,392

2,450

(143
)
25,700

(11
)
23,559

1,431

(331
)
24,657

(6
)
Equity securities, AFS [3]
123

19

(6
)
136

—

178

11

(11
)
178

—

Total AFS securities
$
23,515

$
2,469

$
(149
)
$
25,836

$
(11
)
$
23,737

$
1,442

$
(342
)
$
24,835

$
(6
)
[1]
Represents the amount of cumulative non-credit OTTI losses recognized in OCI on securities that also had credit impairments. These losses are included in gross unrealized losses as of June 30, 2016 and December 31, 2015.
[2]
Gross unrealized gains (losses) exclude the fair value of bifurcated embedded derivatives within certain securities. Subsequent changes in value are recorded in net realized capital gains (losses).
[3]
Excluded equity securities, FVO, with a cost and fair value of $293 and $281 as of December 31, 2015. The Company did not hold any equity securities, FVO as of June 30, 2016.
  
Investments Classified by Contractual Maturity Date [Table Text Block]    
The following table presents the Company’s fixed maturities, AFS, by contractual maturity year.
 
June 30, 2016
December 31, 2015
Contractual Maturity
Amortized Cost
Fair Value
Amortized Cost
Fair Value
One year or less
$
846

$
853

$
953

$
974

Over one year through five years
4,621

4,816

4,973

5,075

Over five years through ten years
3,870

4,096

3,650

3,714

Over ten years
8,045

9,769

8,361

9,173

Subtotal
17,382

19,534

17,937

18,936

Mortgage-backed and asset-backed securities
6,010

6,166

5,622

5,721

Total fixed maturities, AFS
$
23,392

$
25,700

$
23,559

$
24,657


Estimated maturities may differ from contractual maturities due to security call or prepayment provisions. Due to the potential for variability in payment speeds (i.e. prepayments or extensions), mortgage-backed and asset-backed securities are not categorized by contractual maturity.
  
Schedule of Unrealized Loss on Investments [Table Text Block]    
Unrealized Losses on AFS Securities
The following tables present the Company’s unrealized loss aging for AFS securities by type and length of time the security was in a continuous unrealized loss position.
 
June 30, 2016
 
Less Than 12 Months
 
12 Months or More
 
Total
 
Amortized Cost
Fair Value
Unrealized Losses
 
Amortized Cost
Fair Value
Unrealized Losses
 
Amortized Cost
Fair Value
Unrealized Losses
ABS
$
172

$
171

$
(1
)
 
$
309

$
276

$
(33
)
 
$
481

$
447

$
(34
)
CDOs [1]
431

429

(3
)
 
569

561

(8
)
 
1,000

990

(11
)
CMBS
183

179

(4
)
 
189

182

(7
)
 
372

361

(11
)
Corporate
862

831

(31
)
 
577

532

(45
)
 
1,439

1,363

(76
)
Foreign govt./govt. agencies
33

31

(2
)
 
35

34

(1
)
 
68

65

(3
)
Municipal
2

2

—

 
6

6

—

 
8

8

—

RMBS
187

186

(1
)
 
235

228

(7
)
 
422

414

(8
)
U.S. Treasuries
—

—

—

 
—

—

—

 
—

—

—

Total fixed maturities, AFS
1,870

1,829

(42
)
 
1,920

1,819

(101
)
 
3,790

3,648

(143
)
Equity securities, AFS [2]
30

28

(2
)
 
38

34

(4
)
 
68

62

(6
)
Total securities in an unrealized loss position
$
1,900

$
1,857

$
(44
)
 
$
1,958

$
1,853

$
(105
)
 
$
3,858

$
3,710

$
(149
)
 
 
December 31, 2015
 
Less Than 12 Months
 
12 Months or More
 
Total
 
Amortized Cost
Fair Value
Unrealized Losses
 
Amortized Cost
Fair Value
Unrealized Losses
 
Amortized Cost
Fair Value
Unrealized Losses
ABS
$
387

$
385

$
(2
)
 
$
271

$
239

$
(32
)
 
$
658

$
624

$
(34
)
CDOs [1]
608

602

(6
)
 
500

493

(5
)
 
1,108

1,095

(11
)
CMBS
655

636

(19
)
 
99

94

(5
)
 
754

730

(24
)
Corporate
4,880

4,696

(184
)
 
363

322

(41
)
 
5,243

5,018

(225
)
Foreign govt./govt. agencies
144

136

(8
)
 
30

27

(3
)
 
174

163

(11
)
Municipal
179

174

(5
)
 
—

—

—

 
179

174

(5
)
RMBS
280

279

(1
)
 
230

223

(7
)
 
510

502

(8
)
U.S. Treasuries
963

950

(13
)
 
8

8

—

 
971

958

(13
)
Total fixed maturities, AFS
8,096

7,858

(238
)
 
1,501

1,406

(93
)
 
9,597

9,264

(331
)
Equity securities, AFS [2]
83

79

(4
)
 
44

37

(7
)
 
127

116

(11
)
Total securities in an unrealized loss position
$
8,179

$
7,937

$
(242
)
 
$
1,545

$
1,443

$
(100
)
 
$
9,724

$
9,380

$
(342
)

[1]
Unrealized losses exclude the change in fair value of bifurcated embedded derivatives within certain securities, for which changes in fair value are recorded in net realized capital gains (losses).
[2]
As of June 30, 2016 and December 31, 2015, excludes equity securities, FVO, which are included in equity securities, AFS on the Condensed Consolidated Balance Sheets.
  
Schedule of Accounts, Notes, Loans and Financing Receivable [Table Text Block]    
Mortgage Loans by Property Type
 
June 30, 2016
December 31, 2015
 
Carrying Value
Percent of Total
Carrying Value
Percent of Total
Commercial
 
 
 
 
Agricultural
$
16

0.5%
$
16

0.5%
Industrial
827

28.8%
829

28.4%
Lodging
25

0.9%
26

0.9%
Multifamily
559

19.5%
557

19.1%
Office
706

24.6%
729

25.0%
Retail
629

21.9%
650

22.3%
Other
109

3.8%
111

3.8%
Total mortgage loans
$
2,871

100.0%
$
2,918

100.0%
The following table presents the carrying value of the Company’s commercial mortgage loans by LTV and DSCR.
Commercial Mortgage Loans Credit Quality
 
June 30, 2016
December 31, 2015
Loan-to-value
Carrying Value
Avg. Debt-Service Coverage Ratio
Carrying Value
Avg. Debt-Service Coverage Ratio
Greater than 80%
$
96

0.96x
$
15

0.91x
65% - 80%
236

2.09x
280

1.78x
Less than 65%
2,539

2.53x
2,623

2.54x
Total commercial mortgage loans
$
2,871

2.43x
$
2,918

2.45x
Mortgage Loans
Mortgage Loan Valuation Allowances
The Company’s security monitoring process reviews mortgage loans on a quarterly basis to identify potential credit losses. Commercial mortgage loans are considered to be impaired when management estimates that, based upon current information and events, it is probable that the Company will be unable to collect amounts due according to the contractual terms of the loan agreement. Criteria used to determine if an impairment exists include, but are not limited to: current and projected macroeconomic factors, such as unemployment rates, and property-specific factors such as rental rates, occupancy levels, LTV ratios and debt service coverage ratios (“DSCR”). In addition, the Company considers historic, current and projected delinquency rates and property values. These assumptions require the use of significant management judgment and include the probability and timing of borrower default and loss severity estimates. In addition, projections of expected future cash flows may change based upon new information regarding the performance of the borrower and/or underlying collateral such as changes in the projections of the underlying property value estimates.
For mortgage loans that are deemed impaired, a valuation allowance is established for the difference between the carrying amount and the Company’s share of either (a) the present value of the expected future cash flows discounted at the loan’s effective interest rate, (b) the loan’s observable market price or, most frequently, (c) the fair value of the collateral. A valuation allowance has been established for either individual loans or as a projected loss contingency for loans with an LTV ratio of 90% or greater and after consideration of other credit quality factors, including DSCR. Changes in valuation allowances are recorded in net realized capital gains and losses. Interest income on impaired loans is accrued to the extent it is deemed collectible and the loans continue to perform under the original or restructured terms. Interest income ceases to accrue for loans when it is probable that the Company will not receive interest and principal payments according to the contractual terms of the loan agreement. Loans may resume accrual status when it is determined that sufficient collateral exists to satisfy the full amount of the loan and interest payments as well as when it is probable cash will be received in the foreseeable future. Interest income on defaulted loans is recognized when received.
 
June 30, 2016
December 31, 2015
 
Amortized Cost [1]
Valuation Allowance
Carrying Value
Amortized Cost [1]
Valuation Allowance
Carrying Value
Total commercial mortgage loans
$
2,890

$
(19
)
$
2,871

$
2,937

$
(19
)
$
2,918

[1]
Amortized cost represents carrying value prior to valuation allowances, if any.
As of June 30, 2016, and December 31, 2015, the carrying value of mortgage loans associated with the valuation allowance was $31 and $39, respectively. There were no mortgage loans held-for-sale as of June 30, 2016 or December 31, 2015. As of June 30, 2016, loans within the Company’s mortgage loan portfolio that have had extensions or restructurings other than what is allowable under the original terms of the contract are immaterial.
The following table presents the activity within the Company’s valuation allowance for mortgage loans. These loans have been evaluated both individually and collectively for impairment. Loans evaluated collectively for impairment are immaterial.
 
Six Months Ended June 30,
 
2016
2015
Balance, beginning of period
$
(19
)
$
(15
)
(Additions)/Reversals
—

(4
)
Deductions
—

—

Balance, end of period
$
(19
)
$
(19
)
The following tables present the carrying value of the Company’s mortgage loans by region and property type.
Mortgage Loans by Region
 
June 30, 2016
December 31, 2015
 
Carrying Value
Percent of Total
Carrying Value
Percent of Total
East North Central
$
66

2.3%
$
66

2.3%
East South Central
14

0.5%
14

0.5%
Middle Atlantic
209

7.3%
210

7.2%
Mountain
4

0.1%
4

0.1%
New England
163

5.7%
163

5.6%
Pacific
898

31.3%
933

32.0%
South Atlantic
571

19.9%
579

19.8%
West North Central
1

—%
1

—%
West South Central
128

4.5%
125

4.3%
Other [1]
817

28.4%
823

28.2%
Total mortgage loans
$
2,871

100.0%
$
2,918

100.0%
[1]
Primarily represents loans collateralized by multiple properties in various regions.
  
Schedule of Variable Interest Entities [Table Text Block]    
Consolidated VIEs
The following table presents the carrying value of assets and liabilities, and the maximum exposure to loss relating to the VIEs for which the Company is the primary beneficiary. Creditors have no recourse against the Company in the event of default by these VIEs nor does the Company have any implied or unfunded commitments to these VIEs. The Company’s financial or other support provided to these VIEs is limited to its collateral or investment management services and original investment.
 
June 30, 2016
December 31, 2015
 
Total Assets
Total Liabilities  [1]
Maximum Exposure to Loss [2]
Total Assets
Total Liabilities  [1]
Maximum Exposure to Loss [2]
Investment funds [3]
$
—

$
—

$
—

$
52

$
11

$
42

Limited partnerships and other alternative investments [4]
7

—

7

2

1

1

Total
$
7

$
—

$
7

$
54

$
12

$
43

[1]
Included in other liabilities on the Company’s Condensed Consolidated Balance Sheets.
[2]
The maximum exposure to loss represents the maximum loss amount that the Company could recognize as a reduction in net investment income or as a realized capital loss and is the cost basis of the Company’s investment.
[3]
Total assets included in fixed maturities, FVO, short-term investments, and equity, AFS on the Company’s Condensed Consolidated Balance Sheets.
[4]
Total assets included in limited partnerships and other alternative investments, short-term investments, and other assets on the Company’s Condensed Consolidated Balance Sheets.
  
Derivative Instruments [Abstract]        
Notional and Fair Value for GMWB Hedging Instruments [Table Text Block]    
 
Notional Amount
Fair Value
 
June 30, 2016
December 31, 2015
June 30, 2016
December 31, 2015
Customized swaps
$
5,421

$
5,877

$
166

$
131

Equity swaps, options, and futures
1,395

1,362

—

2

Interest rate swaps and futures
3,716

3,740

37

25

Total
$
10,532

$
10,979

$
203

$
158

Macro Hedge Program
The Company utilizes equity swaps, options, futures, and forwards to provide partial protection against the statutory tail scenario risk arising from GMWB and guaranteed minimum death benefit ("GMDB") liabilities on the Company's statutory surplus. These derivatives cover some of the residual risks not otherwise covered by the dynamic hedging program. The following table presents notional and fair value for the macro hedge program.
 
Notional Amount
Fair Value
 
June 30, 2016
December 31, 2015
June 30, 2016
December 31, 2015
Equity swaps, options, futures, and forwards
$
4,699

$
4,548

$
147

$
147

Total
$
4,699

$
4,548

$
147

$
147

  
Schedule of Derivative Instruments in Statement of Financial Position, Fair Value [Table Text Block]    
Derivative Balance Sheet Classification
The following table summarizes the balance sheet classification of the Company’s derivative related net fair value amounts as well as the gross asset and liability fair value amounts. For reporting purposes, the Company has elected to offset within total assets or total liabilities based upon the net of the fair value amounts, income accruals, and related cash collateral receivables and payables of OTC derivative instruments executed in a legal entity and with the same counterparty under a master netting agreement, which provides the Company with the legal right of offset. The Company has also elected to offset within total assets or total liabilities based upon the net of the fair value amounts, income accruals and related cash collateral receivables and payables of OTC-cleared derivative instruments based on clearing house agreements. The following fair value amounts do not include income accruals or related cash collateral receivables and payables, which are netted with derivative fair value amounts to determine balance sheet presentation. Derivatives in the Company’s separate accounts, where the associated gains and losses accrue directly to policyholders, are not included in the table below. The Company’s derivative instruments are held for risk management purposes, unless otherwise noted in the following table. The notional amount of derivative contracts represents the basis upon which pay or receive amounts are calculated and is presented in the table to quantify the volume of the Company’s derivative activity. Notional amounts are not necessarily reflective of credit risk. The following tables exclude investments that contain an embedded credit derivative for which the Company has elected the fair value option. For further discussion, see the Fair Value Option section in Note 2 - Fair Value Measurements of Notes to Condensed Consolidated Financial Statements.
 
Net Derivatives
Asset Derivatives
Liability Derivatives
 
Notional Amount
Fair Value
Fair Value
Fair Value
Hedge Designation/ Derivative Type
Jun 30, 2016
Dec 31, 2015
Jun 30, 2016
Dec 31, 2015
Jun 30, 2016
Dec 31, 2015
Jun 30, 2016
Dec 31, 2015
Cash flow hedges
 
 
 
 
 
 
 
 
Interest rate swaps
$
1,766

$
1,766

$
83

$
38

$
83

$
38

$
—

$
—

Foreign currency swaps
143

143

(19
)
(19
)
9

7

(28
)
(26
)
Total cash flow hedges
1,909

1,909

64

19

92

45

(28
)
(26
)
Fair value hedges
 
 
 
 
 
 
 
 
Interest rate swaps
23

23

—

—

—

—

—

—

Total fair value hedges
23

23

—

—

—

—

—

—

Non-qualifying strategies
 
 
 
 
 
 
 
 
Interest rate contracts
 
 
 
 
 
 
 
 
Interest rate swaps, swaptions, and futures
4,267

4,710

(407
)
(415
)
566

285

(973
)
(700
)
Foreign exchange contracts
 
 
 
 
 
 
 
 
Foreign currency swaps and forwards
2

386

—

4

—

4

—

—

Fixed payout annuity hedge
1,063

1,063

(261
)
(357
)
—

—

(261
)
(357
)
Credit contracts
 
 
 
 
 
 
 
 
Credit derivatives that purchase credit protection
110

249

(4
)
10

—

12

(4
)
(2
)
Credit derivatives that assume credit risk [1]
714

1,435

(3
)
(10
)
5

5

(8
)
(15
)
Credit derivatives in offsetting positions
1,345

1,435

(1
)
(1
)
20

17

(21
)
(18
)
Equity contracts
 
 
 
 
 
 
 
 
Equity index swaps and options
748

404

—

15

28

41

(28
)
(26
)
Variable annuity hedge program
 
 
 
 
 
 
 
 
GMWB product derivatives [2]
14,072

15,099

(412
)
(262
)
—

—

(412
)
(262
)
GMWB reinsurance contracts
2,905

3,106

106

83

106

83

—

—

GMWB hedging instruments
10,532

10,979

203

158

360

264

(157
)
(106
)
Macro hedge program
4,699

4,548

147

147

185

179

(38
)
(32
)
Other
 
 
 
 
 
 
 
 
Modified coinsurance reinsurance contracts
928

895

32

79

32

79

—

—

Total non-qualifying strategies
41,385

44,309

(600
)
(549
)
1,302

969

(1,902
)
(1,518
)
Total cash flow hedges, fair value hedges, and non-qualifying strategies
$
43,317

$
46,241

$
(536
)
$
(530
)
$
1,394

$
1,014

$
(1,930
)
$
(1,544
)
Balance Sheet Location
 
 
 
 
 
 
 
 
Fixed maturities, available-for-sale
$
150

$
184

$
1

$
(1
)
$
1

$
—

$
—

$
(1
)
Other investments
5,241

11,837

270

250

281

360

(11
)
(110
)
Other liabilities
19,972

15,071

(505
)
(653
)
974

492

(1,479
)
(1,145
)
Reinsurance recoverable
3,832

4,000

138

162

138

162

—

—

Other policyholder funds and benefits payable
14,122

15,149

(440
)
(288
)
—

—

(440
)
(288
)
Total derivatives
$
43,317

$
46,241

$
(536
)
$
(530
)
$
1,394

$
1,014

$
(1,930
)
$
(1,544
)
[1]
The derivative instruments related to this strategy are held for other investment purposes.
[2]
These derivatives are embedded within liabilities and are not held for risk management purposes.

  
Offsetting Assets and Liabilities [Table Text Block]    
As of December 31, 2015
 
(i)
 
(ii)
 
(iii) = (i) - (ii)
(iv)
 
(v) = (iii) - (iv)
 
 
 
 
 
Net Amounts Presented in the Statement of Financial Position
 
Gross Amounts Not Offset in the Statement of Financial Position
 
 
 
Gross Amounts of Recognized Assets
 
Gross Amounts Offset in the Statement of Financial Position
 
Derivative Assets [1]
 
Accrued Interest and Cash Collateral Received [2]
 
Financial Collateral Received [4]
 
Net Amount
Description
 
 
 
 
 
 
 
 
 
 
 
Other investments
$
852

 
$
692

 
$
250

 
$
(90
)
 
$
99

 
$
61

As of June 30, 2016
 
(i)
 
(ii)
 
(iii) = (i) - (ii)
(iv)
 
(v) = (iii) - (iv)
 
 
 
 
 
Net Amounts Presented in the Statement of Financial Position
 
Collateral Disallowed for Offset in the Statement of Financial Position
 
 
 
Gross Amounts of Recognized Assets
 
Gross Amounts Offset in the Statement of Financial Position
 
Derivative Assets [1]
 
Accrued Interest and Cash Collateral Received [2]
 
Financial Collateral Received [4]
 
Net Amount
Description
 
 
 
 
 
 
 
 
 
 
 
Other investments
$
1,255

 
$
1,015

 
$
270

 
$
(30
)
 
$
189

 
$
51

  
Schedule of Cash Flow Hedging Instruments, Statements of Financial Performance and Financial Position, Location [Table Text Block]    
Cash Flow Hedges
For derivative instruments that are designated and qualify as cash flow hedges, the effective portion of the gain or loss on the derivative is reported as a component of OCI and reclassified into earnings in the same period or periods during which the hedged transaction affects earnings. Gains and losses on the derivative representing hedge ineffectiveness are recognized in current period earnings. All components of each derivative’s gain or loss were included in the assessment of hedge effectiveness.
The following tables present the components of the gain or loss on derivatives that qualify as cash flow hedges:
Derivatives in Cash Flow Hedging Relationships
 
Gain (Loss) Recognized in OCI on Derivative (Effective Portion)
 
Net Realized Capital Gains (Losses) Recognized in Income on Derivative (Ineffective Portion)
 
Three Months Ended June 30,
 
Six Months Ended June 30,
 
Three Months Ended June 30,
 
Six Months Ended June 30,
 
2016
2015
 
2016
2015
 
2016
2015
 
2016
2015
Interest rate swaps
$
11

$
(22
)
 
$
45

$
(2
)
 
$
—

$
—

 
$
—

$
—

Foreign currency swaps
—

6

 
1

(1
)
 
—

—

 
—

—

Total
$
11

$
(16
)
 
$
46

$
(3
)
 
$
—

$
—

 
$
—

$
—

 
 
Gain or (Loss) Reclassified from AOCI into Income (Effective Portion)
 
 
Three Months Ended June 30,
 
Six Months Ended June 30,
 
Location
2016
2015
 
2016
2015
Interest rate swaps
Net realized capital gains (losses)
$
—

$
—

 
$
—

$
(1
)
Interest rate swaps
Net investment income
7

9

 
12

17

Foreign currency swaps
Net realized capital gains (losses)
(2
)
3

 
2

(7
)
Total
 
$
5

$
12

 
$
14

$
9

  
Gain or Loss Recognized with in Net Realized Capital Gains Losses on Non Qualifying Strategies [Table Text Block]    
Derivatives Used in Non-Qualifying Strategies
Gain or (Loss) Recognized within Net Realized Capital Gains and Losses
 
Three Months Ended June 30,
 
Six Months Ended June 30,
 
2016
2015
 
2016
2015
Interest rate contracts
 
 
 
 
 
Interest rate swaps, swaptions, and futures
$
2

$
(2
)
 
$
(8
)
$
(3
)
Foreign exchange contracts
 
 
 
 
 
Foreign currency swaps and forwards
2

—

 
—

2

Fixed payout annuity hedge [1]
60

(17
)
 
96

(31
)
Credit contracts
 
 
 
 
 
Credit derivatives that purchase credit protection
(1
)
—

 
(3
)
(1
)
Credit derivatives that assume credit risk
3

(4
)
 
1

2

Equity contracts
 
 
 
 
 
Equity index swaps and options
(2
)
4

 
28

2

Commodity contracts
 
 
 
 
 
Commodity options
—

(4
)
 
—

(7
)
Variable annuity hedge program
 
 
 
 
 
GMWB product derivatives
(30
)
78

 
(109
)
59

GMWB reinsurance contracts
1

(16
)
 
13

(9
)
GMWB hedging instruments
32

(66
)
 
82

(53
)
Macro hedge program
(20
)
(23
)
 
(34
)
(27
)
Other
 
 
 
 
 
Modified coinsurance reinsurance contracts
(25
)
37

 
(47
)
26

Total [2]
$
22

$
(13
)
 
$
19

$
(40
)
[1] Not included in this amount is the associated liability adjustment for changes in foreign exchange spot rates through realized capital gains (losses) of $(64) and $16 for the three months ended June 30, 2016 and 2015, respectively, and $(108) and $16 for the six months ended June 30, 2016 and 2015, respectively.
[2] Excludes investments that contain an embedded credit derivative for which the Company has elected the fair value option. For further discussion, see the Fair Value Option section in Note 2 - Fair Value Measurements
  
Disclosure of Credit Derivatives [Table Text Block]    
 As of June 30, 2016
 
 
 
 
Underlying Referenced
Credit Obligation(s) [1]
 
 
Credit Derivative type by derivative
risk exposure
Notional
Amount [2]
Fair
Value
Weighted
Average
Years to
Maturity
Type
Average
Credit
Rating
Offsetting
Notional
Amount [3]
Offsetting
Fair Value [3]
Single name credit default swaps
 
 
 
 
 
 
 
Investment grade risk exposure
$
101

$
—

3 years
Corporate Credit/ Foreign Gov.
A-
$
62

$
—

Below investment grade risk exposure
43

(1
)
2 years
Corporate Credit
CCC+
43

—

Basket credit default swaps [4]
 
 
 
 
 
 
 
Investment grade risk exposure
673

5

3 years
Corporate Credit
BBB+
345

(2
)
Below investment grade risk exposure
22

1

5 years
Corporate Credit
BB-
22

(1
)
Investment grade risk exposure
331

(8
)
5 years
CMBS Credit
AA+
134

1

Below investment grade risk exposure
67

(16
)
1 year
CMBS Credit
CCC
67

16

Embedded credit derivatives
 
 
 
 
 
 
 
Investment grade risk exposure
150

150

1 year
Corporate Credit
A+
—

—

Total [5]
$
1,387

$
131

 
 
 
$
673

$
14

 As of December 31, 2015
 
 
 
 
Underlying Referenced
Credit Obligation(s) [1]
 
 
Credit Derivative type by derivative
risk exposure
Notional
Amount [2]
Fair
Value
Weighted
Average
Years to
Maturity
Type
Average
Credit
Rating
Offsetting
Notional
Amount [3]
Offsetting
Fair Value [3]
Single name credit default swaps
 
 
 
 
 
 
 
Investment grade risk exposure
$
118

$
—

1 year
Corporate Credit/ Foreign Gov.
BBB+
$
115

$
(1
)
Below investment grade risk exposure
43

(2
)
2 years
Corporate Credit
CCC+
43

1

Basket credit default swaps [4]
 
 
 
 
 
 
 
Investment grade risk exposure
1,265

7

4 years
Corporate Credit
BBB+
345

(2
)
Investment grade risk exposure
503

(14
)
6 years
CMBS Credit
AAA-
141

1

Below investment grade risk exposure
74

(13
)
1 year
CMBS Credit
CCC
74

13

Embedded credit derivatives
 
 
 
 
 
 
 
Investment grade risk exposure
150

148

1 year
Corporate Credit
A+
—

—

Total [5]
$
2,153

$
126

 
 
 
$
718

$
12

[1]
The average credit ratings are based on availability and the midpoint of the applicable ratings among Moody’s, S&P, Fitch, and Morningstar. If no rating is available from a rating agency, then an internally developed rating is used.
[2]
Notional amount is equal to the maximum potential future loss amount. These derivatives are governed by agreements, clearing house rules, and applicable law, which include collateral posting requirements. There is no additional specific collateral related to these contracts or recourse provisions included in the contracts to offset losses.
[3]
The Company has entered into offsetting credit default swaps to terminate certain existing credit default swaps, thereby offsetting the future changes in value of, or losses paid related to, the original swap.
[4]
Includes $1.1 billion and $1.8 billion as of June 30, 2016, and December 31, 2015, respectively, of standard market indices of diversified portfolios of corporate and CMBS issuers referenced through credit default swaps. These swaps are subsequently valued based upon the observable standard market index.
[5]
Excludes investments that contain an embedded credit derivative for which the Company has elected the fair value option. For further discussion, see the Fair Value Option section in Note 2 - Fair Value Measurements
  
Gain (Loss) on Investments [Table Text Block]    
 
Three Months Ended June 30,
Six Months Ended June 30,
 
2016
2015
2016
2015
Credit impairments
$
1

$
—

$
9

$
2

Intent-to-sell impairments
—

2

1

6

Impairments on equity securities
—

—

1

—

Total impairments
$
1

$
2

$
11

$
8

  
Other than Temporary Impairment Losses, Investments $ 1 $ 2 $ 11 $ 8