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Trade Accounts Receivable, Net - Trade Accounts Receivable, Net (Detail) - USD ($) $ in Millions	Dec. 31, 2020	Dec. 31, 2019
Receivables [Abstract]
Trade accounts receivable	$ 1,481	$ 1,396
Current expected credit losses allowance ("CECLA")*	(16)	(16)
Total	$ 1,465	$ 1,380

X

- Definition

Amount, before allowance for credit loss, of right to consideration from customer for product sold and service rendered in normal course of business, classified as current.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 45
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=121593590&loc=d3e4428-111522

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- Definition

Amount, after allowance for credit loss, of right to consideration from customer for product sold and service rendered in normal course of business, classified as current.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition

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

+ References

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-Name Accounting Standards Codification
-Topic 210
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