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Earnings Per Share
 3 Months Ended
Feb. 28, 2019
Earnings Per Share [Abstract]  
Earnings Per Share
Earnings Per Share 
 
Three Months Ended
February 28,
(in millions, except per share data)
2019
 
2018
Net income for basic and diluted earnings per share
$
336

 
$
391

Weighted-average shares outstanding
693

 
717

Dilutive effect of equity plans
2

 
2

Diluted weighted-average shares outstanding
695

 
719

Basic earnings per share
$
0.48

 
$
0.54

Diluted earnings per share
$
0.48

 
$
0.54