Annual report pursuant to Section 13 and 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 12 Months Ended
Dec. 31, 2011
Sep. 30, 2011
Jun. 30, 2011
Mar. 31, 2011
Dec. 31, 2010
Sep. 30, 2010
Jun. 30, 2010
Mar. 31, 2010
Dec. 31, 2011
Dec. 31, 2010
Dec. 31, 2009
Numerator:                      
Net income attributable to common shareowners $ 725 $ 1,072 $ 1,092 $ 915 $ 1,025 $ 972 $ 826 $ 515 $ 3,804 $ 3,338 $ 1,968
Denominator:                      
Weighted average shares                 977 991 995
Deferred compensation obligations                 2 2 2
Vested portion of restricted shares                 2 1 1
Denominator for basic earnings per share                 981 994 998
Effect of dilutive securities:                      
Restricted performance units                 3 3 2
Restricted stock units                 6 6 4
Stock options                 1    
Denominator for diluted earnings per share                 991 1,003 1,004
Basic Earnings Per Share $ 0.75 $ 1.10 $ 1.11 $ 0.92 $ 1.03 $ 0.98 $ 0.83 $ 0.52 $ 3.88 $ 3.36 $ 1.97
Diluted Earnings Per Share $ 0.74 $ 1.09 $ 1.09 $ 0.91 $ 1.02 $ 0.97 $ 0.82 $ 0.51 $ 3.84 $ 3.33 $ 1.96