Quarterly report pursuant to Section 13 or 15(d)

Fair Value Measurements (Tables)

v3.8.0.1
Fair Value Measurements (Tables)
3 Months Ended
Mar. 31, 2018
Fair Value Disclosures [Abstract]  
Fair Value Measurements by Level for Assets and Liabilities Measured at Fair Value on a Recurring Basis
The following table summarizes fair value measurements by level at March 31, 2018, for assets and liabilities measured at fair value on a recurring basis ($ in millions):  
 
Level I
 
Level II
 
Level III
 
Total
Assets
 
 
 
 
 
 
 
Cash and cash equivalents
$
5,668

 
$

 
$

 
$
5,668

Investments available for sale:
 

 
 

 
 

 
 

U.S. Treasury securities and obligations of U.S. government corporations and agencies
$
137

 
$

 
$

 
$
137

Corporate securities

 
2,214

 

 
2,214

Municipal securities

 
2,162

 

 
2,162

Asset-backed securities

 
490

 

 
490

Residential mortgage-backed securities

 
335

 

 
335

Commercial mortgage-backed securities

 
281

 

 
281

Total investments
$
137

 
$
5,482

 
$

 
$
5,619

Restricted deposits available for sale:
 

 
 

 
 

 
 

Cash and cash equivalents
$
16

 
$

 
$

 
$
16

Certificates of deposit
4

 

 

 
4

U.S. Treasury securities and obligations of U.S. government corporations and agencies
120

 

 

 
120

Total restricted deposits
$
140

 
$

 
$

 
$
140

Other long-term assets: Interest rate swap agreements
$

 
$

 
$

 
$

Total assets at fair value
$
5,945

 
$
5,482

 
$

 
$
11,427

Liabilities
 
 
 
 
 
 
 
Other long-term liabilities:
 
 
 
 
 
 
 
Interest rate swap agreements
$

 
$
120

 
$

 
$
120

Total liabilities at fair value
$

 
$
120

 
$

 
$
120



























The following table summarizes fair value measurements by level at December 31, 2017, for assets and liabilities measured at fair value on a recurring basis ($ in millions): 
 
Level I
 
Level II
 
Level III
 
Total
Assets
 
 
 
 
 
 
 
Cash and cash equivalents
$
4,072

 
$

 
$

 
$
4,072

Investments available for sale:
 

 
 

 
 

 
 

U.S. Treasury securities and obligations of U.S. government corporations and agencies
$
195

 
$

 
$

 
$
195

Corporate securities

 
2,210

 

 
2,210

Municipal securities

 
2,087

 

 
2,087

Asset-backed securities

 
437

 

 
437

Residential mortgage-backed securities

 
332

 

 
332

Commercial mortgage-backed securities

 
271

 

 
271

Total investments
$
195

 
$
5,337

 
$

 
$
5,532

Restricted deposits available for sale:
 

 
 

 
 

 
 

Cash and cash equivalents
$
17

 
$

 
$

 
$
17

Certificates of deposit
4

 

 

 
4

U.S. Treasury securities and obligations of U.S. government corporations and agencies
114

 

 

 
114

Total restricted deposits
$
135

 
$

 
$

 
$
135

Other long-term assets:
 
 
 
 
 
 
 
Interest rate swap agreements
$

 
$
1

 
$

 
$
1

Total assets at fair value
$
4,402

 
$
5,338

 
$

 
$
9,740

Liabilities
 
 
 
 
 
 
 
Other long-term liabilities:
 
 
 
 
 
 
 
Interest rate swap agreements
$

 
$
72

 
$

 
$
72

Total liabilities at fair value
$

 
$
72

 
$

 
$
72