(Dollars in millions except per share data)

Three Months Ended
September 30,

Nine Months Ended
September 30,

2011

2010

2011

2010

I.

Profit (loss) for the period (A)1:

$1,141

$792

$3,381

$1,732

II.

Determination of shares (in millions):

Weighted-average number of common shares outstanding (B)

646.6

632.6

644.3

629.6

Shares issuable on exercise of stock awards, net of shares assumed to be purchased out of proceeds at average market price

19.4

19.0

21.8

17.4

Average common shares outstanding for fully diluted computation (C) 2

666.0

651.6

666.1

647.0

III.

Profit (loss) per share of common stock:

Assuming no dilution (A/B)

$1.76

$1.25

$5.25

$2.75

Assuming full dilution (A/C) 2

$1.71

$1.22

$5.08

$2.68

1 Profit (loss) attributable to common stockholders.

2 Diluted by assumed exercise of stock-based compensation awards using the treasury stock method.