EARNINGS PER SHARE (Tables)

12 Months Ended

Dec. 31, 2010

Earnings Per Share (Tables) [Abstract]

Schedule Of Earnings Per Share Basic [Table Text Block]

Schedule of Basic earnings per share

	01/01 to 12/31/2010			01/01 to 12/31/2009			01/01 to 12/31/2008
Earnings per share - Basic
Net income attributable to common and preferred stockholders of Itaú Unibanco Holding
Net income attributable to Itaú Unibanco Holding		11,067			14,085			4,849
Minimum non-cumulative dividend on preferred shares in accordance with our by-laws		(49	)		(48	)		(31	)
Subtotal		11,018			14,037			4,818
Retained earnings to be distributed to common stockholders in an amount per share equal to the minimum dividend payable to preferred stockholders		(50	)		(47	)		(34	)
Subtotal		10,968			13,990			4,784
Retained earnings to be distributed to common and preferred stockholders on a pro-rata basis:
To common stockholders		5,535			7,074			2,505
To preferred stockholders		5,433			6,916			2,279
Total net income available to common stockholders		5,585			7,121			2,539
Total net income available to preferred stockholders		5,482			6,964			2,310
Weighted average outstanding shares
Common shares		2,288,034,273			2,192,530,134			1,708,760,440
Preferred shares		2,245,448,240			2,143,753,894			1,554,841,088
Earnings per share – R$
Common shares		2.44			3.25			1.49
Preferred shares		2.44			3.25			1.49

Schedule Of Earnings Per Share Diluted [Table Text Block]

Schedule of Diluted earnings per share	01/01 to 12/31/2010			01/01 to 12/31/2009			01/01 to 12/31/2008
Earnings per share – Diluted
Net income attributable to common and preferred stockholders of Itaú Unibanco Holding
Net income available to preferred stockholders		5,482			6,964			2,310
Dividend on incremental preferred shares		18			9			9
Net income available to preferred stockholders considering incremental preferred shares		5,500			6,973			2,319
Net income available to common stockholders		5,585			7,121			2,539
Dividend on incremental preferred shares		(18	)		(9	)		(9	)
Net income available to common stockholders considering incremental preferred shares		5,567			7,112			2,530
Adjusted weighted average shares
Common shares		2,288,034,273			2,192,530,134			1,708,760,440
Preferred shares		2,260,049,773			2,149,890,063			1,569,079,278
Preferred shares		2,245,448,240			2,143,753,894			1,554,841,088
Incremental shares from share based compensation plans (Note 26)		14,601,533			6,136,169			14,238,190
Diluted earnings per share – in R$
Common shares		2.43			3.24			1.48
Preferred shares		2.43			3.24			1.48