Due From Related Party, Conversion Of Related Party Debt, New Principal Upon Conversion

No definition available.

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Data Type:	xbrli:monetaryItemType
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- Definition

Due From Related Party, Conversion Of Related Party Debt, Original Principal

+ References

No definition available.

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Gain (Loss) on Contingent Consideration Related to Disposals

+ References

No definition available.

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

For an unclassified balance sheet, amounts due from related parties including affiliates, employees, joint ventures, officers and stockholders, immediate families thereof, and pension funds.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03.10(3))
-URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 235
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.4-08.(k)(1))
-URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-03.3)
-URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910

Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 850
-SubTopic 10
-Section 50
-Paragraph 1
-Subparagraph (d)
-URI http://asc.fasb.org/extlink&oid=6457730&loc=d3e39549-107864

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- 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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Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Identify the stated interest rate per the agreement, for example, leasing and debt arrangements between related parties.

+ References

No definition available.

+ Details

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Data Type:	num:percentItemType
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Period Type:	duration

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- Details

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- Details

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- Details

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Related party transactions - Gains in Other Operating Income (Details) - USD ($) $ in Millions		3 Months Ended		6 Months Ended
	Apr. 26, 2017	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018	Dec. 31, 2018
Related Party Transaction [Line Items]
Total contingent consideration recognized				$ 0
Carrying value of related party receivable		$ 686		686		$ 716
Convertible bond
Related Party Transaction [Line Items]
Carrying value of related party receivable		49		49		$ 43
Archer
Related Party Transaction [Line Items]
Related party receivable before conversion	$ 146
Related party receivable after conversion	$ 45
Interest rate on related party receivable	5.50%
Predecessor
Related Party Transaction [Line Items]
Total contingent consideration recognized					$ 7
Disposed of by sale
Related Party Transaction [Line Items]
Total contingent consideration recognized		0		0
Disposed of by sale \| Predecessor
Related Party Transaction [Line Items]
Total contingent consideration recognized			$ 3		7
Disposed of by sale \| West Vela earn out realized
Related Party Transaction [Line Items]
Total contingent consideration recognized		$ 0		$ 0
Disposed of by sale \| West Vela earn out realized \| Predecessor
Related Party Transaction [Line Items]
Total contingent consideration recognized			$ 3		$ 7