BUSINESS SEGMENT INFORMATION - Trading and operating profit by business segment (Details) - USD ($) $ in Millions	12 Months Ended
Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
BUSINESS SEGMENT INFORMATION
Operating profit	$ 934	$ 801	$ 628
Acquisition-related costs	(10)	9	12
Restructuring and rationalisation expenses		62	65
Amortisation and impairment of acquired intangibles	140	178	204
Legal and other	(16)	(30)	190
Trading profit of the business segment	1,048	1,020	1,099
Net interest expense	(51)	(46)	(38)
Share of results of associates	6	(3)	(16)
Gain on disposal of business		326
Taxation	(112)	(278)	(149)
Attributable profit for the year	767	$ 784	$ 410
Legal expenses	$ 10

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The amount of expense relating to restructuring. Restructuring is a programme that is planned and controlled by management and materially changes either the scope of a business undertaken by an entity or the manner in which that business is conducted. Such programmes include: (a) the sale or termination of a line of business; (b) closure of business locations in a country or region or the relocation of activities from one country or region to another; (c) changes in management structure; and (d) fundamental reorganisations that have a material effect on the nature and focus of the entity's operations.

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The profit (loss) from operating activities of the entity. [Refer: Profit (loss)]

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The entity's share of the profit (loss) of associates and joint ventures accounted for using the equity method. [Refer: Associates [member]; Investments accounted for using equity method; Joint ventures [member]; Profit (loss)]

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The amount of income (expense) relating to trading assets and liabilities.

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The amount of acquisition-related costs recognised as an expense (income) for transactions that are recognised separately from the acquisition of assets and the assumption of liabilities in business combinations.

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The amount of amortisation and impairment of acquisition intangibles.

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The gains (losses) on disposal of business.

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The amount of legal fees paid or payable, and other expense (outside management's definition of trading profit).

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The amount of legal expenses relating to the ongoing metal-on-metal hip claims.

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