INCOME TAXES (Details 5) (USD $)	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Rollforward of the beginning and ending balances of the total amounts of gross unrecognized tax benefits
Gross unrecognized tax benefits, beginning of year	$ 4,279,000,000	$ 5,296,000,000	$ 4,843,000,000
Increases in tax positions for prior years	322,000,000	239,000,000	888,000,000
Decreases in tax positions for prior years	(253,000,000)	(1,046,000,000)	(470,000,000)
Increases in tax positions for current year		48,000,000	49,000,000
Lapse in statute of limitations	(8,000,000)	(7,000,000)	(6,000,000)
Settlements	(5,000,000)	(259,000,000)	(12,000,000)
Activity of discontinued operations	50,000,000	8,000,000
Less: Unrecognized tax benefits of held for sale entities			4,000,000
Gross unrecognized tax benefits, end of year	4,385,000,000	4,279,000,000	5,296,000,000
Unrecognized tax benefits, if recognized would not affect the effective tax rate	200,000,000	700,000,000	1,700,000,000
Unrecognized tax benefits, if recognized would favorably affect the effective tax rate	4,200,000,000	3,500,000,000	3,600,000,000
Unrecognized tax benefits, interest and penalties accrued	935,000,000	744,000,000
Unrecognized tax benefits, interest net of the federal benefit (expense) and penalties	$ 189,000,000	$ (174,000,000)	$ 149,000,000
Period of time reasonably expected for a change to occur in the balance of unrecognized tax benefits	12 months