STOCK-BASED COMPENSATION (Performance Deferred Stock) (Details) (USD $) In Millions, except Share data, unless otherwise specified	12 Months Ended										12 Months Ended		12 Months Ended
	Dec. 31, 2011 Performance Deferred Stock Awards [Member] years		Dec. 31, 2010 Performance Deferred Stock Awards [Member]		Dec. 31, 2009 Performance Deferred Stock Awards [Member]		Dec. 31, 2011 Performance Deferred Stock vested and not issued [Member]	Dec. 31, 2011 Nonvested Performance Deferred Stock [Member]		Dec. 31, 2011 Executive Performance Plan 1994 [Member]	Dec. 31, 2011 Non-Employee Directors' Stock Incentive Plan 2003 [Member]	Dec. 31, 2003 Non-Employee Directors' Stock Incentive Plan 2003 [Member]	Dec. 31, 2011 January 1, 2011 - December 31, 2013 [Member] Performance Deferred Stock Awards [Member]		Dec. 31, 2010 January 1, 2010 to December 31, 2012 [Member] Performance Deferred Stock Awards [Member]		Dec. 31, 2009 October 1, 2009 to September 30, 2011 [Member] Performance Deferred Stock Awards [Member]		Dec. 31, 2009 January 1, 2009 to December 31, 2011 [Member] Performance Deferred Stock Awards [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unrecognized Compensation Cost	$ 8
Weighted-average Recognition Period, in years	0.83
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested [Roll Forward]
Outstanding, shares, beginning balance								3,132,000	[1]
Nonvested, weighted average grant date fair value per share, beginning of period								$ 20.72	[2]
Target shares granted								1,109,000	[1]				1,109,000	[1]	875,000	[1]	1,177,000	[1]	1,162,000	[1]
Weighted-average grant date fair value per share, granted								$ 38.07	[2]				$ 38.07	[2]	$ 27.79	[2]	$ 26.39	[2]	$ 9.53	[2]
Exercised, shares								(2,210,000)	[1]
Weighted-average fair value per share of deferred stock granted vested							$ 9.53	$ 17.98	[2]
Canceled, shares								(127,000)	[1]
Weighted average grant date fair value per share, canceled								$ 27.30	[2]
Outstanding, shares, ending balance								1,904,000	[1]
Nonvested, weighted average grant date fair value per share, end of period								$ 33.57	[2]		$ 37.26
Total fair value of performance deferred stock vested and delivered	77	[3]	28	[3]	1	[3]
Total fair value of performance deferred stock vested and delivered, related tax benefit	28		10		0
Compensation expense related to modification of equity Instrument to liability instruments			25
Total compensation expense for performance deferred stock awards	36	[4]	143	[4]	(7)	[4]
Stock-based compensation expense related tax benefit	13		53		(2)
Shares of performance deferred stock	1,200,000		300,000
Cash paid to settle performance deferred stock awards	$ 36		$ 8
Shares authorized to grant										300,000		1,500,000
Annual aggregate award limit shares on director stock incentive plan											25,000
Restricted stock issued											31,350
Performance deferred shares vested, but not issued							1,900,000
Actual number of shares granted above target minimum range	0.00%
Actual number of shares granted above target maximum range	250.00%

[1] At the end of the performance period, the actual number of shares issued can range from zero to 250 percent of the target shares granted.

[2] Weighted-average per share

[3] Includes the fair value of shares vested in prior years and delivered in the reporting year.

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