EMPLOYEE STOCK BENEFIT PLANS (Outstanding and Exercisable Options) (Details) $ / shares in Units, shares in Thousands, $ in Millions	12 Months Ended
	Dec. 31, 2016 USD ($) $ / shares shares
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Options Outstanding, Number Outstanding | shares	6,403
Options Outstanding, Weighted Average Remaining Contractual Life	1 year 5 months 5 days
Options Outstanding, Weighted Average Exercise Price Per Share	$ 21.02
Options Outstanding, Aggregate Intrinsic Value | $	$ 240
Options Exercisable, Number Exercisable | shares	6,403
Options Exercisable, Weighted Average Remaining Contractual Life	1 year 5 months 5 days
Options Exercisable, Weighted Average Exercise Price Per Share	$ 21.02
Options Exercisable, Aggregate Intrinsic Value | $	$ 240
Closing Company stock price used to calculate the aggregate intrinsic value	$ 58.44
Exercise Price Of One Dollar To Twenty Dollars [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Options Outstanding, Number Outstanding | shares	3,052
Options Outstanding, Weighted Average Remaining Contractual Life	2 years 1 month 24 days
Options Outstanding, Weighted Average Exercise Price Per Share	$ 17.54
Options Outstanding, Aggregate Intrinsic Value | $	$ 125
Options Exercisable, Number Exercisable | shares	3,052
Options Exercisable, Weighted Average Remaining Contractual Life	2 years 1 month 24 days
Options Exercisable, Weighted Average Exercise Price Per Share	$ 17.54
Options Exercisable, Aggregate Intrinsic Value | $	$ 125
Exercise Price Of Twenty Dollars To Thirty Dollars [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Options Outstanding, Number Outstanding | shares	3,351
Options Outstanding, Weighted Average Remaining Contractual Life	9 months 11 days
Options Outstanding, Weighted Average Exercise Price Per Share	$ 24.18
Options Outstanding, Aggregate Intrinsic Value | $	$ 115
Options Exercisable, Number Exercisable | shares	3,351
Options Exercisable, Weighted Average Remaining Contractual Life	9 months 11 days
Options Exercisable, Weighted Average Exercise Price Per Share	$ 24.18
Options Exercisable, Aggregate Intrinsic Value | $	$ 115