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Accounts Receivable
 12 Months Ended
Dec. 31, 2021
Receivables [Abstract]  
Accounts Receivable

Note 10. Accounts Receivable

 

 

 

 

 

 

 

(In millions)

 

2021

 

 

2020

 

Accounts receivable

 

$

2,510

 

 

$

1,841

 

Allowance for doubtful accounts

 

 

(123

)

 

 

(150

)

 

 

$

2,387

 

 

$

1,691