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Net Income Per Share (Tables)
 12 Months Ended
Dec. 31, 2018
Earnings Per Share [Abstract]  
Schedule Of Earnings Per Share Basic And Diluted
The following table sets forth the computation of basic and diluted net income per share (in millions except per share amounts):

 
Year ended December 31,
 
2018
 
2017
 
2016
 
 
 
As Recast
 
As Recast
NUMERATOR:
 
 
 
 
 
Net income
$
2,465

 
$
3,357

 
$
2,183

Incremental income effect of
  interest on 5.25% convertible notes
—

 
—

 
2

Net income after assumed conversion
$
2,465

 
$
3,357

 
$
2,185

 
 
 
 
 
 
DENOMINATOR:
 

 
 

 
 
Weighted-average shares outstanding, basic
573

 
601

 
627

Dilutive effect of Employee stock options and
  restricted stock units
1

 
2

 
1

Dilutive effect of 5.25% convertible notes
—

 
—

 
5

Adjusted weighted-average shares outstanding, diluted
574

 
603

 
633

 
 
 
 
 
 
NET INCOME PER SHARE:
 

 
 

 
 
Basic
$
4.30

 
$
5.58

 
$
3.48

Diluted
$
4.29

 
$
5.57

 
$
3.45