CONSOLIDATED FINANCIAL STATEMENTS Changes to Equity Statement (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Dividend equivalents on participating securities		$ 0
Other	$ (6)	(10)
Scenario, Previously Reported [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Other		(10)
Retained Earnings [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Dividend equivalents on participating securities		10
Other	$ 6	10
Retained Earnings [Member] | Scenario, Previously Reported [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Dividend equivalents on participating securities		10
Other		$ 0