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Receivables, Net (Tables)
6 Months Ended
Jun. 30, 2022
Receivables, Net  
Schedule of receivables

June 30,

December 31,

($ in millions)

2022

    

2021

Trade accounts receivable

$

1,731

$

1,304

Unbilled receivables

831

727

Less: Allowance for doubtful accounts

(16)

(9)

Net trade accounts receivable

2,546

2,022

Other receivables

593

538

$

3,139

$

2,560