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REMUNERATION OF KEY MANAGEMENT PERSONNEL (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016
Key Management Personnel [Abstract]
Salaries and short-term employee benefits	$ 20	$ 19
Post-employment benefits	3	2
Share-based payments and other	12	17
Key management personnel compensation	$ 35	$ 38

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- Definition

Key Management Personnel [Abstract]

+ References

No definition available.

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- Definition

The amount of compensation to key management personnel. [Refer: Key management personnel of entity or parent [member]]

+ References

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- Definition

The amount of compensation to key management personnel in the form of post-employment benefits. [Refer: Key management personnel of entity or parent [member]]

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The amount of compensation to key management personnel in the form of share-based payments. [Refer: Key management personnel of entity or parent [member]]

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The amount of compensation to key management personnel in the form of short-term employee benefits. [Refer: Key management personnel of entity or parent [member]]

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