Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt.

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Face (par) amount of debt instrument at time of issuance.

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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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Description of the maturity date of the debt instrument including whether the debt matures serially and, if so, a brief description of the serial maturities.

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Amount of long-term debt classified as other.

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Long-Term Debt And Borrowing Arrangements (Narrative) (Detail) - USD ($) $ in Millions	3 Months Ended	6 Months Ended
	Jun. 30, 2019	Jun. 30, 2019	Dec. 31, 2018
Debt Instrument [Line Items]
Other Long-term Debt	$ 34	$ 34	$ 41
Uncommitted Credit Facility [Member] \| Minimum [Member]
Debt Instrument [Line Items]
Line of Credit Facility, Interest Rate During Period	0.79%
Uncommitted Credit Facility [Member] \| Maximum [Member]
Debt Instrument [Line Items]
Line of Credit Facility, Interest Rate During Period	1.53%
Five And One Over Two Senior Notes [Member] \| Senior Notes [Member]
Debt Instrument [Line Items]
Debt Instrument, Maturity Date, Description		April 2023
Long-term Debt, Gross	$ 675	$ 675	675
Six And Three Over Eight Senior Notes [Member] \| Senior Notes [Member]
Debt Instrument [Line Items]
Debt Instrument, Maturity Date, Description		April 2024
Long-term Debt, Gross	350	$ 350	350
Four and One over Eight Euro-Denominated Senior Notes [Member] \| Senior Notes [Member]
Debt Instrument [Line Items]
Debt Instrument, Maturity Date, Description		November 2024
Long-term Debt, Gross	341	$ 341	344
Five And One Over Four Senior Notes [Member] \| Senior Notes [Member]
Debt Instrument [Line Items]
Debt Instrument, Face Amount	400	$ 400
Debt Instrument, Maturity Date, Description		March 2025
Long-term Debt, Gross	375	$ 375	375
Four and One over Two Euro-Denominated Senior Notes [Member] \| Senior Notes [Member]
Debt Instrument [Line Items]
Debt Instrument, Maturity Date, Description		May 2025
Long-term Debt, Gross	$ 284	$ 284	$ 287