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Summary of Significant Accounting Policies (Tables)

12 Months Ended

Dec. 31, 2022

Accounting Policies [Abstract]

Allowance for doubtful accounts receivable

The allowance for doubtful accounts related to accounts receivable and related activity are summarized below:

			December 31,
(In millions)			2022						2021						2020
Balance at beginning of year			$	4					$	4					$	10
Provision			1						—						1
Recoveries			—						—						(3)
Write-offs charged against the allowance			—						—						(4)
Balance at end of year			$	5					$	4					$	4

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- References

No definition available.

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- Definition

Tabular disclosure of allowance for credit loss on financing receivable.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 11B
-URI https://asc.fasb.org/extlink&oid=123577603&loc=SL6953423-111524

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 326
-SubTopic 20
-Section 50
-Paragraph 13
-URI https://asc.fasb.org/extlink&oid=124255953&loc=SL82919249-210447

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