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Share-based Compensation (Details) shares in Millions	3 Months Ended	6 Months Ended
	Jun. 30, 2018 $ / shares shares	Jun. 30, 2018 $ / shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation Arrangement to be paid in Cash, Liability Award, Grants in period, Weighted Average Grant Date Fair Value | $ / shares	$ 6.58	$ 6.58
Cash-based restricted share unit awards [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Awards granted | shares	4.7
Restricted Share Awards and Share Unit Awards [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting rate		20.00%

X

- Definition

Share-based Compensation Arrangement by Share-based Payment Award, Vesting Rate

+ References

No definition available.

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- Definition

Share-based Compensation Arrangement to be paid in Cash, Liability Award, Grants in period, Weighted Average Grant Date Fair Value

+ References

No definition available.

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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.

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- Definition

Number of share instruments newly issued under a share-based compensation plan.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=96867065&loc=d3e5070-113901

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