STOCK-BASED COMPENSATION (Stock Option Plans) (Details) (USD $) In Millions, except Share data, unless otherwise specified	12 Months Ended																						12 Months Ended
	Dec. 31, 2012 Performance Deferred Stock Awards [Member] Y		Dec. 31, 2011 Performance Deferred Stock Awards [Member]		Dec. 31, 2010 Performance Deferred Stock Awards [Member]		Dec. 31, 2012 Stock Options [Member] Y		Dec. 31, 2011 Stock Options [Member]		Dec. 31, 2010 Stock Options [Member]		Dec. 31, 2012 Deferred Stock [Member] Y	Dec. 31, 2011 Deferred Stock [Member]	Dec. 31, 2010 Deferred Stock [Member]	Dec. 31, 2012 2012 Stock Incentive Plan [Member] Stock Options [Member]	Dec. 31, 2012 Non-Employee Directors' Stock Plan 1998 [Member] Stock Options [Member]	Dec. 31, 1998 Non-Employee Directors' Stock Plan 1998 [Member] Stock Options [Member]	Dec. 31, 2012 Non-Employee Directors' Stock Plan 1994 [Member] Stock Options [Member]	Dec. 31, 1994 Non-Employee Directors' Stock Plan 1994 [Member] Stock Options [Member]	Dec. 31, 2012 1988 Award and Option Plan [Member] Stock Options [Member]	Dec. 31, 2012 Non-Employee Directors' Stock Incentive Plan 2003 [Member] Stock Options [Member]	Dec. 31, 2012 Minimum [Member] Performance Deferred Stock Awards [Member]	Dec. 31, 2012 Minimum [Member] Stock Options [Member]	Dec. 31, 2012 Minimum [Member] Deferred Stock [Member]	Dec. 31, 2012 Maximum [Member] Performance Deferred Stock Awards [Member]	Dec. 31, 2012 Maximum [Member] Stock Options [Member]	Dec. 31, 2012 Maximum [Member] Deferred Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant																44,749,231					0
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized																		600,000		300,000
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period																							1 year	1 year	2 years	3 years	3 years	5 years
Share-based Compensation Arrangement by Share-based Payment Award, Expiration							10 years
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward]
Outstanding, shares, beginning balance							63,704,000										14,600		19,250			106,950
Outstanding, exercise price, beginning balance							$ 35.08	[1]
Granted, shares							12,796,000
Granted, exercise price							$ 34.00	[1]
Exercised, shares	(1,000,000)		(1,200,000)		(300,000)		(6,046,000)
Exercised, exercise price							$ 22.64	[1]
Forfeited/Expired, shares							(1,586,000)
Forfeited/Expired, exercise price							$ 41.39	[1]
Outstanding, shares, ending balance							68,868,000		63,704,000								14,600		19,250			106,950
Outstanding, exercise price, ending balance							$ 35.82	[1]	$ 35.08	[1]
Remaining contractual life in years							5.57	[1]
Aggregate intrinsic value in millions							$ 187
Options exercisable at end of period, shares							46,574,000
Options exercisable at end of year, weighted average exercise price							$ 36.42	[1]
Options exercisable at end of year, weighted average remaining contractual term (years)							4.18	[1]
Option exercisable aggregate intrinsic value in millions							175
Weighted-average fair value per share of options granted							$ 9.38		$ 10.64		$ 9.17
Total Compensation Expense	21	[2]	36	[2]	143	[2]	106		88		72		129	124	123
Stock-based compensation expense related tax benefit	8		13		53		39		33		27		48	46	46
Total amount of cash received from the exercise of options	34		36		8		137		147		66
Total intrinsic value of options exercised							64	[3]	66	[3]	30	[3]
Options exercised related tax benefit							24		24		11
Unrecognized Compensation Cost	$ 8						$ 53						$ 74
Employee Service Share-based Compensation, Nonvested, Total Compensation Cost not yet recognized and period for recognition in years	0.81						0.86						0.84
Vested Award but not issued as of period end and expected date of issuance																									1 year			4 years

[1] Weighted-average per share

[2] Compensation expense in 2010 included $25 million related to the modification of equity instruments to liability instruments for certain executive employees.

[3] Difference between the market price at exercise and the price paid by the employee to exercise the options.