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Earnings Per Share (Tables)
 9 Months Ended
Sep. 30, 2019
Earnings Per Share [Abstract]  
Schedule of computation of basic and diluted earnings per share The following table shows the computation of basic and diluted earnings per share:
 
Three Months Ended September 30,
 
Nine Months Ended September 30,
(in millions, except per share data)
2019
2018
 
2019
2018
Net income
$
1,495

$
1,322

 
$
3,669

$
2,916

 
 
 
 
 
 
Basic weighted average shares outstanding
646

686

 
654

695

Dilutive effect of share-based awards
2

2

 
2

2

Diluted weighted average shares outstanding
648

688

 
656

697

 
 
 
 
 
 
Basic earnings per share
$
2.32

$
1.93

 
$
5.61

$
4.20

Diluted earnings per share
$
2.31

$
1.92

 
$
5.59

$
4.18