Accounting Policies (Tables)

6 Months Ended

Jun. 30, 2013

Schedule of Weighted Average Number of Shares

The following table shows the calculation of diluted shares (in millions):

	Three Months Ended June 30,				Six Months Ended June 30,
	2013		2012		2013		2012
Shares used in computation of basic earnings per share		456		451		455		452
Total dilutive effect of outstanding stock awards		—		7		8		7
Shares used in computation of diluted earnings per share		456		458		463		459