INVESTMENT CONTRACTS, INSURANCE LIABILITIES AND INSURANCE ANNUITY BENEFITS - Schedule of Investment Contracts, Insurance Liabilities and Insurance Annuity Benefits (Details) - USD ($) $ in Millions	Jun. 30, 2018	Dec. 31, 2017
Future policy benefit reserves
Long-term care insurance contracts	$ 16,380	$ 16,522
Structured settlement annuities with life contingencies and other contracts	9,544	9,448
Shadow adjustments	2,704	4,582
Future policy benefit reserves	28,628	30,552
Investment contracts	2,482	2,569
Claim reserves	5,233	5,094
Unearned premiums and other	419	372
Future policy benefit reserves, investment contracts, claim reserves and unearned premiums and other	36,762	38,587
Eliminations	(529)	(451)
Total	36,233	38,136
Long Term-Care Insurance Contracts
Future policy benefit reserves
Claim reserves	3,754	3,590
Short-Duration Insurance Contracts
Future policy benefit reserves
Claim reserves	$ 359	$ 364

The amount of the liability as of the balance sheet date pertaining to the guarantee given by the insurance entity to contract holders of a specified rate of return (a guaranteed yield) on their investments for a specified period.

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The amount needed to reflect the estimated ultimate cost of settling claims relating to insured events that have occurred on or before the balance sheet date, whether or not reported to the insurer at that date.

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Amount of accrued obligation to policyholders that relates to insured events for long-duration contracts.

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The aggregate amount of policy reserves (provided for future obligations including unpaid claims and claims adjustment expenses) and policy benefits (liability for future policy benefits) as of the balance sheet date; grouped amount of all the liabilities associated with the company's insurance policies.

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Amount of accrued obligation to policyholders that relates to insured events under individual and group annuities and supplementary insurance contracts.

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Amount of accrued obligation to policyholders that relates to insured events under long-term life insurance contracts.

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Estimated costs as of the balance sheet date of settling insured claims and costs incurred in the claims settlement process for claims that have not yet been submitted to the insurance company for reimbursement.

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