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.

No definition available.

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Amount of expenses associated with exit or disposal activities pursuant to an authorized plan. Excludes expenses related to a discontinued operation or an asset retirement obligation.

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-SubTopic 10
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Amount of income tax expense (benefit) from effect of Tax Cuts and Jobs Act.

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Amount of increase (decrease) in unrecognized tax benefits attributable to uncertain tax positions taken in tax returns.

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Quarterly Financial Data - Additional Information (Detail) - USD ($) $ in Millions	3 Months Ended			12 Months Ended
	Jun. 30, 2019	Dec. 31, 2018	Sep. 30, 2018	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Interim Period, Costs Not Allocable [Line Items]
Restructuring		$ 49		$ 60	$ 49	$ 0
Tax Cuts and Jobs Act, income tax benefit			$ (65)
After Tax
Interim Period, Costs Not Allocable [Line Items]
Restructuring	$ 41	$ 37
Non-U.S.
Interim Period, Costs Not Allocable [Line Items]
Unrecognized tax benefits, increase (decrease)			$ 64