TRADE RECEIVABLES AND OTHER CURRENT ASSETS - Summary of Trade Receivables and Other Current Assets (Details) - USD ($) $ in Millions	Jun. 30, 2019	Dec. 31, 2018
Disclosure Trade Receivables and Other Current Assets [Abstract]
Trade receivables	$ 333	$ 339
Prepaids and others	82	114
Other short-term receivables	104	109
Current portion of contract asset	47	45
Trade receivables and other current assets, net	$ 566	$ 607

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The amount of current receivables from contracts with customers. [Refer: Receivables from contracts with customers]

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The amount of current trade receivables. [Refer: Trade receivables]

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The amount of current assets that the entity does not separately disclose in the same statement or note. [Refer: Current assets]

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The amount of current other receivables. [Refer: Other receivables]

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The amount of current trade receivables and current other receivables. [Refer: Current trade receivables; Other current receivables]

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