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Fair Value Measurements (Tables)
12 Months Ended
Dec. 31, 2021
Fair Value Measurements  
Schedule of assets and liabilities measured at fair value

As of December 31, 2021

As of December 31, 2020

(in millions)

    

Total

    

Level 1

    

Level 2

    

Level 3

    

Total

    

Level 1

    

Level 2

    

Level 3

  

Available for sale securities

$

12

$

12

$

$

$

11

$

11

$

$

Derivative assets

74

49

25

69

53

16

Derivative liabilities

32

22

10

29

3

26

Long-term debt

1,957

1,957

1,751

1,751