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FINANCIAL INSTRUMENTS - Cash and Equivalents (Details) $ in Millions	Jun. 30, 2018 USD ($)
Carrying value | Cash held in subsidiaries with restrictions
Disclosure of detailed information about financial instruments [line items]
Restricted cash and cash equivalents	$ 317

X

- Definition

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

+ References

No definition available.

+ Details

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- Definition

The amount of cash and cash equivalents whose use or withdrawal is restricted. [Refer: Cash and cash equivalents]

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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-IssueDate 2017-01-01
-Paragraph 55
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-URIDate 2017-03-09

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- Details

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- Details

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