STOCK OWNERSHIP AND COMPENSATION PLANS (Transactions Under Stock Option Plans) (Details) - Stock Option [Member] - USD ($) $ / shares in Units, shares in Millions, $ in Millions	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward]
Options outstanding, beginning of year	9.1
Options granted	1.8
Exercise of stock options, shares	(2.2)
Options forfeited and cancelled	(0.2)
Options outstanding, end of year	8.5	9.1
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price [Abstract]
Options outstanding, beginning of year weighted average exercise price	$ 62.27
Options, granted weighted average exercise price	96.02
Options exercised weighted average exercise price	58.91
Options forfeited and cancelled weighted average exercise price	79.74
Options outstanding, end of year weighted average exercise price	$ 70.11	$ 62.27
Options outstanding, end of year weighted average remaining contractual term	7 years 1 month 6 days
Options outstanding, end of year aggregate intrinsic value	$ 243
Exercisable, end of year shares	4.4
Exercisable, end of year weighted average exercise price	$ 60.81
Exercisable, end of year weighted average remaining contractual term	5 years 10 months 24 days
Exercisable, end of year aggregate intrinsic value	$ 166
Vested and expected to vest, end of year shares	8.3
Vested and expected to vest, end of year weighted average exercise price	$ 69.73
Vested and expected to vest, end of year weighted average remaining contractual term	7 years 1 month 6 days
Vested and expected to vest, end of year aggregate intrinsic value	$ 240
Total intrinsic value of options exercised	94	$ 30	$ 21
Compensation not yet recognized, stock options	$ 16
Unrecognized stock-based compensation cost weighted average period	1 year 10 months 24 days