Quarterly report pursuant to Section 13 or 15(d)

Computation of Basic and Diluted Earnings Per Share (Detail)

v2.4.0.6
Computation of Basic and Diluted Earnings Per Share (Detail) (USD $)
In Millions, except Per Share data, unless otherwise specified
3 Months Ended
Mar. 31, 2012
Mar. 31, 2011
Numerator:    
Net income attributable to common shareowners $ 970 $ 915
Denominator:    
Weighted average shares 959 988
Deferred compensation obligations 2 2
Vested portion of restricted shares 1 2
Denominator for basic earnings per share 962 992
Denominator for diluted earnings per share 972 1,002
Basic earnings per share $ 1.01 $ 0.92
Diluted earnings per share $ 1.00 $ 0.91
Restricted performance units
   
Denominator:    
Incremental common shares attributable to share-based payment arrangements 4 3
Restricted stock units
   
Denominator:    
Incremental common shares attributable to share-based payment arrangements 5 6
Stock option plans
   
Denominator:    
Incremental common shares attributable to share-based payment arrangements 1 1