STOCK OWNERSHIP AND COMPENSATION PLANS (Transactions Under Stock Option Plans) (Details) (USD $) In Millions, except Share data, unless otherwise specified	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Options outstanding, beginning of year	6,300,000
Options outstanding, beginning of year weighted average exercise price	$ 54.20
Options granted	2,500,000
Options, granted weighted average exercise price	$ 52.39
Exercise of stock options, shares	(1,500,000)
Options exercised weighted average exercise price	$ 51.65
Options forfeited and cancelled	(700,000)
Options forfeited and cancelled weighted average exercise price	$ 50.47
Options outstanding, end of year weighted average remaining contractual term	7 years 3 months 18 days
Options outstanding, end of year aggregate intrinsic value	$ 83
Exercisable, end of year shares	3,100,000
Exercisable, end of year weighted average exercise price	$ 55.00
Exercisable, end of year weighted average remaining contractual term	5 years 7 months 6 days
Exercisable, end of year aggregate intrinsic value	37
Vested and expected to vest, end of year shares	6,400,000
Vested and expected to vest, end of year weighted average exercise price	$ 54.50
Vested and expected to vest, end of year weighted average remaining contractual term	7 years 2 months 12 days
Vested and expected to vest, end of year aggregate intrinsic value	81
Options outstanding, end of year	6,600,000	6,300,000
Options outstanding, end of year weighted average exercise price	$ 54.46	$ 54.20
Total intrinsic value of options exercised	13	32	45
Stock Option [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Employee Service Share-based Compensation, Nonvested Awards, Compensation Not yet Recognized, Stock Options	$ 14
Unrecognized stock-based compensation cost weighted average period	1 year 4 months 24 days