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Guarantor Condensed Consolidating Financial Information - Condensed Consolidating Statements of Cash Flows (Details) (Parenthetical) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Condensed Cash Flow Statements, Captions [Line Items]
Proceeds from accounts receivable securitization facility	$ 128	$ 0	$ 0
Securitization Facility [Member]
Condensed Cash Flow Statements, Captions [Line Items]
Proceeds from accounts receivable securitization facility	1,034
Securitization Facility [Member] | Guarantor Subsidiaries [Member] | Special Purpose Entity [Member]
Condensed Cash Flow Statements, Captions [Line Items]
Proceeds from accounts receivable securitization facility	$ 1,144

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

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- Definition

Proceeds from securitizations of receivables treated as collateralized borrowings, which are classified as financing transactions.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 14
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=118932676&loc=d3e3255-108585

+ Details

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Period Type:	duration

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- Details

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- Details

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X

- Details

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