FAIR VALUE MEASUREMENTS Assets and Liabilities Measured at Fair Value Subject to Three-Tier Hierarchy (Details) - Recurring Basis - USD ($) $ in Millions	Sep. 30, 2017	Dec. 31, 2016
Fair Value, Inputs, Level 1
Fair Value, Assets and Liabilities Measured on Recurring Basis
Cash and Cash Equivalents	$ 1
Total - asset	55	$ 43
Fair Value, Inputs, Level 1 | Fixed Income Securities
Fair Value, Assets and Liabilities Measured on Recurring Basis
Mutual funds	53	42
Fair Value, Inputs, Level 1 | Equity Securities
Fair Value, Assets and Liabilities Measured on Recurring Basis
Mutual funds	1	1
Fair Value, Inputs, Level 2
Fair Value, Assets and Liabilities Measured on Recurring Basis
Total - net liability	$ 7	8
Fair Value, Inputs, Level 2 | Interest Rate Swap
Fair Value, Assets and Liabilities Measured on Recurring Basis
Interest rate swap fair value, asset		$ 8