Supplemental Cash Flow Information - Components of Working Capital (Details) - USD ($) $ in Millions	12 Months Ended
Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Decrease (increase) in current assets:
Receivables - change in factoring	$ (103)	$ (61)	$ 146
Receivables - all other changes	(29)	13	(103)
Inventories	75	(26)	(29)
Prepaid expenses and other	(30)	13	(58)
Increase (decrease) in current liabilities:
Accounts payable	(67)	(62)	67
Accrued liabilities	(43)	(30)	(16)
Salaries and wages	24	(25)	(1)
U.S. and foreign income taxes	(8)	2	9
Changes in components of working capital, total	$ (181)	$ (176)	$ 15

The increase (decrease) during the reporting period in factoring receivables.

No definition available.

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- Definition

The increase (decrease) during the reporting period in the aggregate amount of liabilities incurred (and for which invoices have typically been received) and payable to vendors for goods and services received that are used in an entity's business.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 28
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=121586364&loc=d3e3602-108585

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- Definition

The increase (decrease) during the period in the amount due for taxes based on the reporting entity's earnings or attributable to the entity's income earning process (business presence) within a given jurisdiction.

+ References

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- Definition

The increase (decrease) during the reporting period in the aggregate amount of expenses incurred but not yet paid.

+ References

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- Definition

The increase (decrease) during the period in accrued salaries.

+ References

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- Definition

The increase (decrease) during the reporting period in the aggregate value of all inventory held by the reporting entity, associated with underlying transactions that are classified as operating activities.

+ References

+ Details

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- References

No definition available.

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- Definition

The increase (decrease) during the reporting period of all assets and liabilities used in operating activities.

+ References

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- References

No definition available.

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- Definition

Amount of increase (decrease) in prepaid expenses, and assets classified as other.

+ References

+ Details

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- Definition

The increase (decrease) during the reporting period in the total amount due within one year (or one operating cycle) from all parties, associated with underlying transactions that are classified as operating activities.

+ References

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