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Financial Instruments (Tables)
12 Months Ended
Dec. 31, 2019
Financial Instruments  
Carrying amounts and fair values of the financial instruments

December 31, 2019

December 31, 2018

 

Carrying

Fair

Carrying

Fair

 

    

amount

    

value

    

amount

    

value

 

Cash and cash equivalents

 

$

1,790

$

1,790

$

2,160

$

2,160

Restricted cash and cash equivalents

558

558

429

429

Restricted investments

123

123

Long-term debt, including current maturities

9,261

8,976

9,978

9,212

Derivative instruments, assets

1

1

Derivative instruments, liabilities

6

6