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Summary of Significant Accounting Policies (Tables)

12 Months Ended

Dec. 31, 2020

Accounting Policies [Abstract]

Schedule of Changes in Allowances for Credit Losses

Changes in allowances for credit losses consisted of:

			Allowance for Trade Receivables						Allowance for Other Current Receivables						Allowance for Long-Term Receivables
			(in millions)
Balance at January 1, 2020			$	(35)					$	(44)					$	(14)
Current period provision for expected credit losses			(10)						(1)						(1)
Write-offs charged against the allowance			2						2						—
Currency			1						1						3
Balance at December 31, 2020			$	(42)					$	(42)					$	(12)

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- References

No definition available.

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- Definition

Tabular disclosure of the various types of trade accounts and notes receivable and for each the gross carrying value, allowance, and net carrying value as of the balance sheet date. Presentation is categorized by current, noncurrent and unclassified receivables.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.3,4)
-URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682

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