Equity (Details Textuals 2) (USD $)	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Business Acquisition [Line Items]
Fair Value of Stock Issued			$ 2,805,000,000
Cost of shares issued	229,000,000	215,000,000	119,000,000
Equity, Class of Treasury Stock [Line Items]
Repurchase amount outstanding	1,300,000,000
Repurchase Shares	0	0	0
Repurchase Convertible Preferred Stock [Member]
Business Acquisition [Line Items]
Common stock, shares issued		68,570,000
Price per share of common stock issued		$ 43.25
Proceeds from issuance of common stock		3,000,000,000
Issuance costs		16,000,000
Alico Stock Transaction One [Member]
Business Acquisition [Line Items]
Common stock, shares issued			86,250,000
Price per share of common stock issued			$ 42.00
Proceeds from issuance of common stock			3,600,000,000
Issuance costs			94,000,000
Alico Stock Transaction Two [Member]
Business Acquisition [Line Items]
Common stock, shares issued			78,239,712
Price per share of common stock issued			$ 40.90
Fair Value of Stock Issued			3,200,000,000
October 2012 Common Stock Issuance [Member]
Business Acquisition [Line Items]
Common stock, shares issued	28,231,956
Proceeds from issuance of common stock	1,000,000,000
Treasury Shares Issued For Stock Options [Member]
Business Acquisition [Line Items]
Issued Treasury Stock	0	0	332,121
Cost of shares issued			18,000,000
Common Shares Issued For Stock Options [Member]
Business Acquisition [Line Items]
Common stock, shares issued	5,497,752	3,549,211	2,182,174
Cost of shares issued	$ 171,000,000	$ 115,000,000	$ 74,000,000