COMMITMENT AND CONTINGENT LIABILITIES - RESTRUCTURING ROLLFORWARD (Details) - Facility Closing - AXA - USD ($) $ in Millions	9 Months Ended	12 Months Ended
Sep. 30, 2018	Dec. 31, 2017
Restructuring Cost and Reserve [Line Items]
Balance, beginning of year	$ 165	$ 170
Additions / Expense Incurred	7	29
Deferred rent	2	10
Cash payments	(40)	(48)
Interest accretion	3	4
Balance, end of year	$ 137	$ 165

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Amount of cash payments made as the result of exit or disposal activities. Excludes payments associated with a discontinued operation or an asset retirement obligation.

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Carrying amount (including both current and noncurrent portions of the accrual) as of the balance sheet date pertaining to a specified type of cost associated with exit from or disposal of business activities or restructuring pursuant to a duly authorized plan.

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