STOCKHOLDERS' EQUITY (Narrative) (Details) (USD $) In Millions, except Share data, unless otherwise specified			12 Months Ended			9 Months Ended	12 Months Ended	1 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2013 Common Stock [Member]	Dec. 31, 2012 Common Stock [Member]	Dec. 31, 2011 Common Stock [Member]	Dec. 31, 2009 Series A [Member]	Dec. 31, 2013 Series A [Member]	Apr. 30, 2009 Berkshire Hathaway [Member] Series A [Member]	Apr. 30, 2009 Kuwait Investment Authority [Member] Series A [Member]
Class of Stock [Line Items]
Stock Issued During Period, Shares, New Issues								3,000,000	1,000,000
Value of shares issued								$ 3,000	$ 1,000
Preferred stock dividend rate						8.50%
Rate which will be paid on past due preferred stock						10.00%
Ongoing dividends							85
Shares of common stock for each share of preferred stock	24.2010
Convertible Preferred Stock Term of Conversion Share Price	$ 53.72
Common shares issued under ESPP			18,300,000	18,700,000	12,200,000
Undistributed earnings of nonconsolidated affiliates	2,563	2,332
Employee Stock Ownership Plan (ESOP), Debt Structure, Direct Loan, Amount	$ 44	$ 51