Common stock (Tables)

12 Months Ended

Dec. 31, 2010

Common Stock (Tables) [Abstract]

Common shares issued (newly issued or distributed from treasury)

Year ended December 31, (in millions)	2010			2009			2008
Issued – balance at January 1		4,104.9			3,941.6			3,657.7
Newly issued:
Common stock:
Open market issuance		–			163.3			283.9
Bear Stearns Share Exchange Agreement		–			–			20.7
Total newly issued		–			163.3			304.6
Canceled shares		–			–			(20.7	)
Total issued – balance at December 31		4,104.9			4,104.9			3,941.6
Treasury – balance at January 1		(162.9	)		(208.8	)		(290.3	)
Purchase of treasury stock		(77.9	)		–			–
Share repurchases related to employee stock-based awards(a)		(0.1	)		(1.1	)		(0.5	)
Issued from treasury:
Net change from the Bear Stearns merger as a result of the reissuance of Treasury stock and the Share Exchange Agreement		–			–			26.5
Employee benefits and compensation plans		45.3			45.7			54.4
Employee stock purchase plans		1.0			1.3			1.1
Total issued from treasury		46.3			47.0			82.0
Total treasury – balance at December 31		(194.6	)		(162.9	)		(208.8	)
Outstanding		3,910.3			3,942.0			3,732.8

(a) Participants in the Firm’s stock-based incentive plans may have shares withheld to cover income taxes.