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Receivables, Net (Tables)
9 Months Ended
Sep. 30, 2022
Receivables, Net  
Schedule of receivables

September 30,

December 31,

($ in millions)

2022

    

2021

Trade accounts receivable

$

1,632

$

1,304

Unbilled receivables

705

727

Less: Allowance for doubtful accounts

(15)

(9)

Net trade accounts receivable

2,322

2,022

Other receivables

555

538

$

2,877

$

2,560