Amount of allowance for credit loss on accounts receivable, classified as current.

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Reference 2: http://www.xbrl.org/2003/role/disclosureRef
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-Publisher FASB
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- Definition

A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

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Amount of direct write-downs of accounts receivable charged against the allowance.

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- Definition

Amount of valuation allowance for receivables classified as other, due within one year or the normal operating cycle, if longer.

+ References

No definition available.

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- Definition

The sum of amounts currently receivable other than from customers. For classified balance sheets, represents the current amount receivable, that is amounts expected to be collected within one year or the normal operating cycle, if longer.

+ References

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- Definition

Amount of expense (reversal of expense) for expected credit loss on accounts receivable.

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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 326
-SubTopic 20
-Section 50
-Paragraph 13
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Amount of other increase (decrease) to the allowance for credit loss.

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No definition available.

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- Definition

The percentage of receivables classified as current assets.

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Basis of Presentation - Credit loss (Detail) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019	Jan. 01, 2020	Dec. 31, 2019
Allowance activity
Allowance for doubtful accounts, beginning balance	$ 28	$ 29
Additions charged to expense	14	10
Accounts written-off, net of recoveries	(12)	(11)
Other	(1)	2
Allowance for doubtful accounts, ending balance	28	$ 30
Notes and other receivables	494
Allowance for notes and other receivables	$ 5			$ 1
Receivables classified as current (as a percent)	65.00%
Accounting Standards Update 2016-13 [Member] \| Adjustment [Member]
Allowance activity
Allowance for doubtful accounts, ending balance	$ (1)
Allowance for notes and other receivables			$ 4