v3.10.0.1
Equity (Tables)
 12 Months Ended
Dec. 31, 2018
Equity [Abstract]  
Schedule of common stock outstanding
Shares of Common Stock Outstanding
 
 
 
(in millions)
A

 
B

Balance, December 31, 2015
4,875

 
9

Stock compensation plans
23

 
—

Repurchases and retirements of common stock
(161
)
 
—

Employee stock purchase plans
5

 
—

Balance, December 31, 2016
4,742

 
9

Stock compensation plans
19

 
—

Repurchases and retirements of common stock
(131
)
 
—

Employee stock purchase plans
5

 
—

Balance, December 31, 2017
4,635

 
9

Stock compensation plans
15

 
—

Repurchases and retirements of common stock
(140
)
 
—

Employee stock purchase plans
7

 
—

Balance, December 31, 2018
4,517

 
9
Schedule of shares repurchased
Share Repurchases Under Share Repurchase Program Authorization
Year ended December 31 (in millions)
2018

 
2017

 
2016

Cash consideration
$
5,000

 
$
5,000

 
$
5,000

Shares repurchased
140

 
131

 
161
Schedule of accumulated other comprehensive income (loss)
Accumulated Other Comprehensive Income (Loss)
 
 
 
December 31 (in millions)
2018

 
2017

Unrealized gains (losses) on marketable securities
$
3

 
$
(43
)
Deferred gains (losses) on cash flow hedges
55

 
9

Unrecognized gains (losses) on employee benefit obligations
325

 
260

Cumulative translation adjustments
(751
)
 
153

Accumulated other comprehensive income (loss), net of deferred taxes
$
(368
)
 
$
379