Accounting Policies (Tables)

9 Months Ended

Sep. 30, 2020

Accounting Policies [Abstract]

Accounts Receivable, Allowance for Credit Loss

The following table summarizes the required allowance for doubtful accounts.

	September 30, 2020		January 1, 2020
	(In millions)
Accounts receivable	$	2	$	2
Other assets	3		3
Total Allowance for doubtful accounts	$	5	$	5