Accounts Receivable (Tables)

12 Months Ended

Dec. 31, 2020

Receivables [Abstract]

Schedule of Accounts Receivable

(In millions)	2020			2019
Accounts receivable	$	1,841		$	2,052
Allowance for doubtful accounts		(150	)		(111	)
	$	1,691		$	1,941