Total costs related to services rendered by an entity during the reporting period.

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

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No definition available.

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- Definition

Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

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The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.

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The aggregate amount of income or expense from ancillary business-related activities (that is to say, excluding major activities considered part of the normal operations of the business).

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The aggregate total costs related to selling a firm's product and services, as well as all other general and administrative expenses. Direct selling expenses (for example, credit, warranty, and advertising) are expenses that can be directly linked to the sale of specific products. Indirect selling expenses are expenses that cannot be directly linked to the sale of specific products, for example telephone expenses, Internet, and postal charges. General and administrative expenses include salaries of non-sales personnel, rent, utilities, communication, etc.

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Accumulated Other Comprehensive (Loss) Income - Impact and Location of AOCI Reclassifications in Consolidated Statements of Income (Detail) - USD ($) $ in Millions	3 Months Ended								12 Months Ended
	Dec. 31, 2017	Sep. 30, 2017	Jun. 30, 2017	Mar. 31, 2017	Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Defined Benefit Plan Disclosure [Line Items]
Cost of services									$ (809)	$ (751)	$ (765)
Selling, general and administrative expenses									(652)	(664)	(765)
Other income									(6)	(11)	51
Income tax benefit (expense)									(125)	(96)	(70)
Net (loss) income	$ (74)	$ 13	$ (4)	$ (2)	$ 58	$ 49	$ 64	$ (46)	(67)	125	(214)
Amount Reclassified from of Accumulated Other Comprehensive Income
Defined Benefit Plan Disclosure [Line Items]
Cost of services									(3)	(3)	(2)
Selling, general and administrative expenses									(2)	(1)	(1)
Other income									0	0	42
Income tax benefit (expense)									1	1	(16)
Net (loss) income									$ (4)	$ (3)	$ 23