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Derivative Financial Instruments and Off-balance sheet Financial Instruments (Tables) | 12 Months Ended
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Dec. 31, 2017
Derivative Financial Instruments and Off-balance sheet Financial Instruments |
Volume and fair value positions of derivative instruments and location in the Consolidated Statement of Financial Position |
Summary of the volume and fair value positions of derivative instruments as of December 31, 2017
|  |  | Volume (1) |  |  |  |  |  |
($ in millions, except number of contracts) | Balance sheet location |  | Notional amount |  | Number of contracts |  | Fair value, net |  | Gross asset |  | Gross liability
Asset derivatives |  |  |  |  |  |  |  |  |  |  |
Derivatives not designated as accounting hedging instruments |  |  |  |  |  |  |  |  |  |
Interest rate contracts |  |  |  |  |  |  |  |  |  |  |
Interest rate cap agreements | Other investments |  | $ | 15 |  |  | n/a |  |  | $ | — |  |  | $ | — |  |  | $ | — |
Equity and index contracts |  |  |  |  |  |  |  |  |  |  |
Options | Other investments |  | — |  |  | 6,316 |  |  | 125 |  |  | 125 |  |  | — |
Financial futures contracts | Other assets |  | — |  |  | 289 |  |  | — |  |  | — |  |  | — |
Foreign currency contracts |  |  |  |  |  |  |  |  |  |  |
Foreign currency forwards | Other investments |  | 52 |  |  | n/a |  |  | 1 |  |  | 1 |  |  | — |
Credit default contracts |  |  |  |  |  |  |  |  |  |  |
Credit default swaps – buying protection | Other investments |  | 105 |  |  | n/a |  |  | (1 | ) |  | — |  |  | (1 | )
Credit default swaps – selling protection | Other investments |  | 80 |  |  | n/a |  |  | 1 |  |  | 1 |  |  | — |
Other contracts |  |  |  |  |  |  |  |  |  |  |
Other contracts | Other assets |  | 3 |  |  | n/a |  |  | — |  |  | — |  |  | — |
Total asset derivatives |  |  | $ | 255 |  |  | 6,605 |  |  | $ | 126 |  |  | $ | 127 |  |  | $ | (1 | )
Liability derivatives |  |  |  |  |  |  |  |  |  |  |
Derivatives designated as accounting hedging instruments |  |  |  |  |  |  |  |  |  |
Foreign currency swap agreements | Other liabilities & accrued expenses |  | $ | 19 |  |  | n/a |  |  | $ | 2 |  |  | $ | 2 |  |  | $ | — |
Derivatives not designated as accounting hedging instruments |  |  |  |  |  |  |  |  |  |
Interest rate contracts |  |  |  |  |  |  |  |  |  |  |
Interest rate cap agreements | Other liabilities & accrued expenses |  | 30 |  |  | n/a |  |  | 1 |  |  | 1 |  |  | — |
Equity and index contracts |  |  |  |  |  |  |  |  |  |  |
Options and futures | Other liabilities & accrued expenses |  | — |  |  | 7,128 |  |  | (58 | ) |  | — |  |  | (58 | )
Foreign currency contracts |  |  |  |  |  |  |  |  |  |  |
Foreign currency forwards | Other liabilities & accrued expenses |  | 650 |  |  | n/a |  |  | (17 | ) |  | 3 |  |  | (20 | )
Embedded derivative financial instruments |  |  |  |  |  |  |  |  |  |  |
Guaranteed accumulation benefits | Contractholder funds |  | 225 |  |  | n/a |  |  | (22 | ) |  | — |  |  | (22 | )
Guaranteed withdrawal benefits | Contractholder funds |  | 274 |  |  | n/a |  |  | (12 | ) |  | — |  |  | (12 | )
Equity-indexed and forward starting options in life and annuity product contracts | Contractholder funds |  | 1,774 |  |  | n/a |  |  | (252 | ) |  | — |  |  | (252 | )
Credit default contracts |  |  |  |  |  |  |  |  |  |  |
Credit default swaps – buying protection | Other liabilities & accrued expenses |  | 136 |  |  | n/a |  |  | (5 | ) |  | — |  |  | (5 | )
Credit default swaps – selling protection | Other liabilities & accrued expenses |  | 25 |  |  | n/a |  |  | — |  |  | — |  |  | — |
Subtotal |  |  | 3,114 |  |  | 7,128 |  |  | (365 | ) |  | 4 |  |  | (369 | )
Total liability derivatives |  |  | 3,133 |  |  | 7,128 |  |  | (363 | ) |  | $ | 6 |  |  | $ | (369 | )
Total derivatives |  |  | $ | 3,388 |  |  | 13,733 |  |  | $ | (237 | ) |  |  |  |
(1) | Volume for OTC and cleared derivative contracts is represented by their notional amounts. Volume for exchange traded derivatives is represented by the number of contracts, which is the basis on which they are traded. (n/a = not applicable)
Summary of the volume and fair value positions of derivative instruments as of December 31, 2016
|  |  | Volume (1) |  |  |  |  |  |
($ in millions, except number of contracts) | Balance sheet location |  | Notional amount |  | Number of contracts |  | Fair value, net |  | Gross asset |  | Gross liability
Asset derivatives |  |  |  |  |  |  |  |  |  |  |
Derivatives designated as accounting hedging instruments |  |  |  |  |  |  |  |  |  |
Foreign currency swap agreements | Other investments |  | $ | 49 |  |  | n/a |  |  | $ | 5 |  |  | $ | 5 |  |  | $ | — |
Derivatives not designated as accounting hedging instruments |  |  |  |  |  |  |  |  |  |
Interest rate contracts |  |  |  |  |  |  |  |  |  |  |
Interest rate cap agreements | Other investments |  | 65 |  |  | n/a |  |  | 1 |  |  | 1 |  |  | — |
Equity and index contracts |  |  |  |  |  |  |  |  |  |  |
Options | Other investments |  | — |  |  | 3,972 |  |  | 88 |  |  | 88 |  |  | — |
Financial futures contracts | Other assets |  | — |  |  | 261 |  |  | — |  |  | — |  |  | — |
Foreign currency contracts |  |  |  |  |  |  |  |  |  |  |
Foreign currency forwards | Other investments |  | 759 |  |  | n/a |  |  | — |  |  | 24 |  |  | (24 | )
Credit default contracts |  |  |  |  |  |  |  |  |  |  |
Credit default swaps – buying protection | Other investments |  | 87 |  |  | n/a |  |  | (4 | ) |  | — |  |  | (4 | )
Credit default swaps – selling protection | Other investments |  | 140 |  |  | n/a |  |  | 2 |  |  | 2 |  |  | — |
Other contracts |  |  |  |  |  |  |  |  |  |  |
Other contracts | Other assets |  | 3 |  |  | n/a |  |  | 1 |  |  | 1 |  |  | — |
Subtotal |  |  | 1,054 |  |  | 4,233 |  |  | 88 |  |  | 116 |  |  | (28 | )
Total asset derivatives |  |  | $ | 1,103 |  |  | 4,233 |  |  | $ | 93 |  |  | $ | 121 |  |  | $ | (28 | )
​ |  |  | ​ |  |  | ​ |  |  | ​ |  |  | ​ |  |  | ​ |
Liability derivatives |  |  |  |  |  |  |  |  |  |  |
Derivatives not designated as accounting hedging instruments |  |  |  |  |  |  |  |  |  |
Equity and index contracts |  |  |  |  |  |  |  |  |  |  |
Options and futures | Other liabilities & accrued expenses |  | $ | — |  |  | 4,848 |  |  | $ | (39 | ) |  | $ | — |  |  | $ | (39 | )
Embedded derivative financial instruments |  |  |  |  |  |  |  |  |  |  |
Guaranteed accumulation benefits | Contractholder funds |  | 391 |  |  | n/a |  |  | (34 | ) |  | — |  |  | (34 | )
Guaranteed withdrawal benefits | Contractholder funds |  | 290 |  |  | n/a |  |  | (9 | ) |  | — |  |  | (9 | )
Equity-indexed and forward starting options in life and annuity product contracts | Contractholder funds |  | 1,751 |  |  | n/a |  |  | (247 | ) |  | — |  |  | (247 | )
Credit default contracts |  |  |  |  |  |  |  |  |  |  |
Credit default swaps – buying protection | Other liabilities & accrued expenses |  | 136 |  |  | n/a |  |  | (2 | ) |  | — |  |  | (2 | )
Credit default swaps – selling protection | Other liabilities & accrued expenses |  | 105 |  |  | n/a |  |  | (3 | ) |  | — |  |  | (3 | )
Total liability derivatives |  |  | 2,673 |  |  | 4,848 |  |  | (334 | ) |  | $ | — |  |  | $ | (334 | )
Total derivatives |  |  | $ | 3,776 |  |  | 9,081 |  |  | $ | (241 | ) |  |  |  |
(1) | Volume for OTC and cleared derivative contracts is represented by their notional amounts. Volume for exchange traded derivatives is represented by the number of contracts, which is the basis on which they are traded. (n/a = not applicable)
Schedule of gross and net amount for the Company's OTC derivatives subject to enforceable master netting arrangements |
Gross and net amounts for OTC derivatives (1)
|  |  |  | Offsets |  |  |  |  |  |
($ in millions) |  | Gross amount |  | Counter- party netting |  | Cash collateral (received) pledged |  | Net amount on balance sheet |  | Securities collateral (received) pledged |  | Net amount
December 31, 2017 |  |  |  |  |  |  |  |  |  |  |  |
Asset derivatives |  | $ | 8 |  |  | $ | (7 | ) |  | $ | 1 |  |  | $ | 2 |  |  | $ | — |  |  | $ | 2 |
Liability derivatives |  | (26 | ) |  | 7 |  |  | 7 |  |  | (12 | ) |  | 3 |  |  | (9 | )
December 31, 2016 |  |  |  |  |  |  |  |  |  |  |  |
Asset derivatives |  | $ | 31 |  |  | $ | (28 | ) |  | $ | 19 |  |  | $ | 22 |  |  | $ | (9 | ) |  | $ | 13 |
Liability derivatives |  | (33 | ) |  | 28 |  |  | — |  |  | (5 | ) |  | 4 |  |  | (1 | )
(1) | All OTC derivatives are subject to enforceable master netting agreements.
Impacts on operations and AOCI from foreign currency contracts, cash flow hedges |
Summary of the impacts of the foreign currency contracts in cash flow hedging relationships
|  | For the years ended December 31,
($ in millions) |  | 2017 |  | 2016 |  | 2015
(Loss) gain recognized in OCI on derivatives during the period |  | $ | (2 | ) |  | $ | — |  |  | $ | 10 |
(Loss) gain recognized in OCI on derivatives during the term of the hedging relationship |  | (1 | ) |  | 2 |  |  | 6 |
Gain (loss) reclassified from AOCI into income (net investment income) |  | 1 |  |  | 1 |  |  | (1 | )
Gain reclassified from AOCI into income (realized capital gains and losses) |  | — |  |  | 3 |  |  | 3 |
Gains and losses from valuation, settlements, and hedge ineffectiveness, fair value hedges and derivatives not designated as hedges |
Gains and losses from valuation and settlements reported on derivatives not designated as accounting hedges
($ in millions) |  | Realized capital gains and losses |  | Life contract benefits |  | Interest credited to contractholder funds |  | Operating costs and expenses |  | Total gain (loss) recognized in net income on derivatives
2017 |  |  |  |  |  |  |  |  |  |
Equity and index contracts |  | $ | (15 | ) |  | $ | — |  |  | $ | 47 |  |  | $ | 28 |  |  | $ | 60 |
Embedded derivative financial instruments |  | — |  |  | 9 |  |  | (6 | ) |  | — |  |  | 3 |
Foreign currency contracts |  | (27 | ) |  | — |  |  | — |  |  | 6 |  |  | (21 | )
Credit default contracts |  | (4 | ) |  | — |  |  | — |  |  | — |  |  | (4 | )
Total |  | $ | (46 | ) |  | $ | 9 |  |  | $ | 41 |  |  | $ | 34 |  |  | $ | 38 |
2016 |  |  |  |  |  |  |  |  |  |
Equity and index contracts |  | $ | (12 | ) |  | $ | — |  |  | $ | 18 |  |  | $ | 19 |  |  | $ | 25 |
Embedded derivative financial instruments |  | — |  |  | 9 |  |  | — |  |  | — |  |  | 9 |
Foreign currency contracts |  | 17 |  |  | — |  |  | — |  |  | (35 | ) |  | (18 | )
Credit default contracts |  | (5 | ) |  | — |  |  | — |  |  | — |  |  | (5 | )
Total |  | $ | — |  |  | $ | 9 |  |  | $ | 18 |  |  | $ | (16 | ) |  | $ | 11 |
2015 |  |  |  |  |  |  |  |  |  |
Interest rate contracts |  | $ | 1 |  |  | $ | — |  |  | $ | — |  |  | $ | — |  |  | $ | 1 |
Equity and index contracts |  | 1 |  |  | — |  |  | (9 | ) |  | (1 | ) |  | (9 | )
Embedded derivative financial instruments |  | — |  |  | (7 | ) |  | 31 |  |  | — |  |  | 24 |
Foreign currency contracts |  | (24 | ) |  | — |  |  | — |  |  | (8 | ) |  | (32 | )
Credit default contracts |  | (2 | ) |  | — |  |  | — |  |  | — |  |  | (2 | )
Total |  | $ | (24 | ) |  | $ | (7 | ) |  | $ | 22 |  |  | $ | (9 | ) |  | $ | (18 | )
Counterparty credit exposure by counterparty credit rating |
OTC derivatives counterparty credit exposure by counterparty credit rating
($ in millions) |  | 2017 |  | 2016
Rating (1) |  | Number of counter-parties |  | Notional amount (2) |  | Credit exposure (2) |  | Exposure, net of collateral (2) |  | Number of counter-parties |  | Notional amount (2) |  | Credit exposure (2) |  | Exposure, net of collateral (2)
AA– |  | 1 |  |  | $ | 18 |  |  | $ | 1 |  |  | $ | — |  |  | 2 |  |  | $ | 80 |  |  | $ | 2 |  |  | $ | 2 |
A+ |  | 3 |  |  | 90 |  |  | 3 |  |  | 1 |  |  | 5 |  |  | 698 |  |  | 20 |  |  | 9 |
A– |  | — |  |  | — |  |  | — |  |  | — |  |  | 1 |  |  | 110 |  |  | 1 |  |  | 1 |
Total |  | 4 |  |  | $ | 108 |  |  | $ | 4 |  |  | $ | 1 |  |  | 8 |  |  | $ | 888 |  |  | $ | 23 |  |  | $ | 12 |
(1) | Rating is the lower of S&P or Moody’s ratings.
(2) | Only OTC derivatives with a net positive fair value are included for each counterparty.
Derivative instruments with credit features in a liability position, including fair value of assets and collateral netted against the liability |
($ in millions) |  | 2017 |  | 2016
Gross liability fair value of contracts containing credit-risk-contingent features |  | $ | 28 |  |  | $ | 9 |
Gross asset fair value of contracts containing credit-risk-contingent features and subject to MNAs |  | (17 | ) |  | (7 | )
Collateral posted under MNAs for contracts containing credit-risk-contingent features |  | (6 | ) |  | — |
Maximum amount of additional exposure for contracts with credit-risk-contingent features if all features were triggered concurrently |  | $ | 5 |  |  | $ | 2 |
CDS notional amounts by credit rating and fair value of protection sold |
CDS notional amounts by credit rating and fair value of protection sold
|  | Notional amount |  |
($ in millions) |  | AA |  | A |  | BBB |  | BB and lower |  | Total |  | Fair value
December 31, 2017 |  |  |  |  |  |  |  |  |  |  |  |
Single name |  |  |  |  |  |  |  |  |  |  |  |
Corporate debt |  | $ | — |  |  | $ | 10 |  |  | $ | 10 |  |  | $ | 5 |  |  | $ | 25 |  |  | $ | — |
Index |  |  |  |  |  |  |  |  |  |  |  |
Corporate debt |  | 1 |  |  | 19 |  |  | 45 |  |  | 15 |  |  | 80 |  |  | 1 |
Total |  | $ | 1 |  |  | $ | 29 |  |  | $ | 55 |  |  | $ | 20 |  |  | $ | 105 |  |  | $ | 1 |
December 31, 2016 |  |  |  |  |  |  |  |  |  |  |  |
Single name |  |  |  |  |  |  |  |  |  |  |  |
Corporate debt |  | $ | 20 |  |  | $ | 10 |  |  | $ | 35 |  |  | $ | — |  |  | $ | 65 |  |  | $ | 1 |
First-to-default Basket |  |  |  |  |  |  |  |  |  |  |  |
Municipal |  | — |  |  | — |  |  | 100 |  |  | — |  |  | 100 |  |  | (3 | )
Index |  |  |  |  |  |  |  |  |  |  |  |
Corporate debt |  | 1 |  |  | 19 |  |  | 50 |  |  | 10 |  |  | 80 |  |  | 1 |
Total |  | $ | 21 |  |  | $ | 29 |  |  | $ | 185 |  |  | $ | 10 |  |  | $ | 245 |  |  | $ | (1 | )
Contractual amounts of off-balance-sheet financial instruments |
Contractual amounts of off balance sheet financial instruments
|  | As of December 31,
($ in millions) |  | 2017 |  | 2016
Commitments to invest in limited partnership interests |  | $ | 3,121 |  |  | $ | 2,979 |
Private placement commitments |  | 96 |  |  | 69 |
Other loan commitments |  | 97 |  |  | 83 |

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