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Commitments and Contingencies (Tables)
 12 Months Ended
Dec. 31, 2019
Commitments And Contingencies Disclosure [Abstract]  
Schedule of Remaining Purchase Obligations As of December 31, 2019, our remaining obligation pursuant to these arrangements was expected to be incurred as follows:

($ in millions)

 

2020

 

 

2021

 

 

2022

 

 

2023

 

 

2024

 

 

Thereafter

 

 

Total

 

Inventory purchase obligations

 

$

84

 

 

$

221

 

 

$

56

 

 

$

58

 

 

$

40

 

 

$

14

 

 

$

473

 

Other commitments(1)

 

 

15

 

 

 

8

 

 

 

2

 

 

 

—

 

 

 

—

 

 

 

—

 

 

 

25

 

Total

 

$

99

 

 

$

229

 

 

$

58

 

 

$

58

 

 

$

40

 

 

$

14

 

 

$

498