XML 36 R26.htm IDEA: XBRL DOCUMENT v3.8.0.1
Available-for-Sale Debt Securities (Tables)
 3 Months Ended
Mar. 31, 2018
Investments, Debt and Equity Securities [Abstract]  
Summary of Available-for-Sale Securities at Estimated Fair Value
The following table summarizes our available-for-sale debt securities (in millions):
 
 
March 31, 2018
 
December 31, 2017
 
 
Amortized
Cost
 
Gross
Unrealized
Gains
 
Gross
Unrealized
Losses
 
Estimated
Fair Value 
 
Amortized
Cost
 
Gross
Unrealized
Gains
 
Gross
Unrealized
Losses
 
Estimated
Fair Value 
Corporate debt securities
 
$
12,044

 
$
2

 
$
(74
)
 
$
11,972

 
$
14,790

 
$
3

 
$
(46
)
 
$
14,747

U.S. treasury securities
 
3,912

 
—

 
(28
)
 
3,884

 
4,090

 
—

 
(29
)
 
4,061

Residential mortgage and asset-backed securities
 
3,427

 
—

 
(21
)
 
3,406

 
4,072

 
1

 
(15
)
 
4,058

U.S. government agencies securities
 
934

 
—

 
(9
)
 
925

 
934

 
—

 
(8
)
 
926

Certificates of deposit
 
3,908

 
—

 
—

 
3,908

 
5,131

 
—

 
—

 
5,131

Non-U.S. government securities
 
563

 
—

 
(4
)
 
559

 
668

 
—

 
(4
)
 
664

Total
 
$
24,788

 
$
2

 
$
(136
)
 
$
24,654

 
$
29,685

 
$
4

 
$
(102
)
 
$
29,587
Summary of the Classification of Available-for-Sale Securities
The following table summarizes the classification of our available-for-sale debt securities on our Condensed Consolidated Balance Sheets (in millions):
 
 
March 31, 2018
 
December 31, 2017
Cash and cash equivalents
 
$
195

 
$
481

Short-term marketable securities
 
16,355

 
17,922

Long-term marketable securities
 
8,104

 
11,184

Total
 
$
24,654

 
$
29,587
Summary of Available-for-Sale Securities by Contractual Maturity
The following table summarizes our available-for-sale debt securities by contractual maturity (in millions):
 
 
March 31, 2018
 
 
Amortized Cost
 
Fair Value
Within one year
 
$
16,591

 
$
16,550

After one year through five years
 
8,094

 
8,003

After five years through ten years
 
76

 
74

After ten years
 
27

 
27

Total
 
$
24,788

 
$
24,654
Summary of Available-for-Sale Securities in a Continuous Loss Position Deemed not to be Other-than-Temporarily Impaired
The following table summarizes our available-for-sale debt securities that were in a continuous unrealized loss position, but were not deemed to be other-than-temporarily impaired (in millions):
 
 
Less Than 12 Months
 
12 Months or Greater
 
Total
 
 
Gross
Unrealized
Losses
 
Estimated
Fair Value
 
Gross
Unrealized
Losses
 
Estimated
Fair Value
 
Gross
Unrealized
Losses
 
Estimated
Fair Value
March 31, 2018
 
 
 
 
 
 
 
 
 
 
 
 
Corporate debt securities
 
$
(25
)
 
$
6,256

 
$
(48
)
 
$
3,604

 
$
(73
)
 
$
9,860

U.S. treasury securities
 
(2
)
 
547

 
(27
)
 
3,337

 
(29
)
 
3,884

Residential mortgage and asset-backed securities
 
(7
)
 
1,682

 
(15
)
 
1,289

 
(22
)
 
2,971

U.S. government agencies securities
 
(1
)
 
182

 
(8
)
 
723

 
(9
)
 
905

Non-U.S. government securities
 
—

 
145

 
(3
)
 
413

 
(3
)
 
558

Total
 
$
(35
)
 
$
8,812

 
$
(101
)
 
$
9,366

 
$
(136
)
 
$
18,178

 
 
 

 
 

 
 

 
 

 
 

 
 

December 31, 2017
 
 
 
 
 
 
 
 
 
 
 
 
Corporate debt securities
 
$
(14
)
 
$
7,674

 
$
(32
)
 
$
3,561

 
$
(46
)
 
$
11,235

U.S. treasury securities
 
(2
)
 
821

 
(27
)
 
3,240

 
(29
)
 
4,061

Residential mortgage and asset-backed securities
 
(4
)
 
2,245

 
(11
)
 
1,206

 
(15
)
 
3,451

U.S. government agencies securities
 
(1
)
 
206

 
(7
)
 
700

 
(8
)
 
906

Non-U.S. government securities
 
(1
)
 
203

 
(3
)
 
461

 
(4
)
 
664

Total
 
$
(22
)
 
$
11,149

 
$
(80
)
 
$
9,168

 
$
(102
)
 
$
20,317