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CONSOLIDATED BALANCE SHEETS (unaudited) (parenthetical) $ in Millions	Dec. 31, 2018 USD ($)
Statement [Line Items]
Financial debts	$ 0
Lease liabilities	89
Property, plant & equipment	2,800
Right-of-use assets	79
Previously stated [member]
Statement [Line Items]
Financial debts	89
Property, plant & equipment	$ 79

X

- Definition

[Line Items] for Statement [Table]

+ References

No definition available.

+ Details

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X

- Definition

The non-current portion of non-current borrowings. [Refer: Borrowings]

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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-IssueDate 2018-01-01
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X

- Definition

The amount of non-current lease liabilities. [Refer: Lease liabilities]

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Note Effective 2019-01-01
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X

- Definition

The amount of tangible assets that: (a) are held for use in the production or supply of goods or services, for rental to others, or for administrative purposes; and (b) are expected to be used during more than one period.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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X

- Definition

The amount of assets that represent a lessee's right to use an underlying asset for the lease term. Underlying asset is an asset that is the subject of a lease, for which the right to use that asset has been provided by a lessor to a lessee.

+ References

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