The designation of funds furnished by a borrower to a lender to assure future payments of the borrower's real estate taxes and insurance obligations with respect to a mortgaged property. Escrow deposits may be made for a variety of other purposes such as earnest money and contingent payments. This element excludes replacement reserves which are an escrow separately provided for within the US GAAP taxonomy.

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COMMITMENTS AND CONTINGENT LIABILITIES (Rocky Flats Matter) (Details) - Rocky Flats Matter - USD ($) $ in Millions		12 Months Ended
	Jan. 17, 2017	Dec. 31, 2016	Dec. 31, 2005	Jan. 26, 2017
Loss Contingencies [Line Items]
Settlement amount		$ 131
Proceeds from indemnity	$ 131
Escrow deposit				$ 130
Dow Chemical and Rockwell International Corporation
Loss Contingencies [Line Items]
Damages awarded			$ 926
Settlement amount		$ 375