Long-Term Debt And Borrowing Arrangements (Schedule Of Long-Term Debt) (Detail) - USD ($) $ in Millions	3 Months Ended	9 Months Ended
Sep. 30, 2019	Sep. 30, 2019	Dec. 31, 2018
Debt Instrument [Line Items]
Other	$ 30	$ 30	$ 41
Short-term debt and current portion of long-term debt	95	95	23
Long-term debt	$ 3,388	$ 3,388	3,528
Long Term Borrowings [Member]
Debt Instrument [Line Items]
Debt instrument stated interest percentage	5.75%	5.75%
Five And One Over Two Senior Notes [Member] \| Long Term Borrowings [Member]
Debt Instrument [Line Items]
Debt instrument stated interest percentage	5.50%	5.50%
Six And Three Over Eight Senior Notes [Member] \| Long Term Borrowings [Member]
Debt Instrument [Line Items]
Debt instrument stated interest percentage	6.375%	6.375%
Four and One over Eight Euro-Denominated Senior Notes [Member] \| Long Term Borrowings [Member]
Debt Instrument [Line Items]
Debt instrument stated interest percentage	4.125%	4.125%
Five And One Over Four Senior Notes [Member] \| Long Term Borrowings [Member]
Debt Instrument [Line Items]
Debt instrument stated interest percentage	5.25%	5.25%
Four and One over Two Euro-Denominated Senior Notes [Member] \| Long Term Borrowings [Member]
Debt Instrument [Line Items]
Debt instrument stated interest percentage	4.50%	4.50%
Four and three over four Euro-Denominated Senior Notes [Member] \| Long Term Borrowings [Member]
Debt Instrument [Line Items]
Debt instrument stated interest percentage	4.75%	4.75%
Senior Notes [Member]
Debt Instrument [Line Items]
Long-term debt	$ 400	$ 400	0
Debt Instrument, Maturity Date, Description		July 2027
Senior Notes [Member] \| Five And One Over Two Senior Notes [Member]
Debt Instrument [Line Items]
Long-term debt	275	$ 275	675
Debt Instrument, Maturity Date, Description		April 2023
Senior Notes [Member] \| Six And Three Over Eight Senior Notes [Member]
Debt Instrument [Line Items]
Long-term debt	350	$ 350	350
Debt Instrument, Maturity Date, Description		April 2024
Senior Notes [Member] \| Four and One over Eight Euro-Denominated Senior Notes [Member]
Debt Instrument [Line Items]
Long-term debt	327	$ 327	344
Debt Instrument, Maturity Date, Description		November 2024
Senior Notes [Member] \| Five And One Over Four Senior Notes [Member]
Debt Instrument [Line Items]
Long-term debt	375	$ 375	375
Debt Instrument, Maturity Date, Description		March 2025
Senior Notes [Member] \| Four and One over Two Euro-Denominated Senior Notes [Member]
Debt Instrument [Line Items]
Long-term debt	272	$ 272	287
Debt Instrument, Maturity Date, Description		May 2025
Senior Notes [Member] \| Four and three over four Euro-Denominated Senior Notes [Member]
Debt Instrument [Line Items]
Long-term debt	$ 381	$ 381	401
Debt Instrument, Maturity Date, Description		January 2026
Loans Payable [Member] \| Floating Rate Term Loan Due February Two Thousand Twenty Five [Member]
Debt Instrument [Line Items]
Debt Instrument, Basis Spread on Variable Rate	3.67%
Long-term debt	$ 1,115	$ 1,115	1,123
Debt Instrument, Maturity Date, Description		February 2025
Debt Instrument, Description of Variable Rate Basis	[200 basis points]
Percentage Of Margin Aggregate Interest Rate	4.05%
Senior Notes and Loans Payable [Member]
Debt Instrument [Line Items]
Deferred Finance Costs, Net	$ (42)	$ (42)	(45)
Long-term Debt	$ 3,483	$ 3,483	$ 3,551

Percentage Of Margin Aggregate Interest Rate.

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- Definition

Percentage points added to the reference rate to compute the variable rate on the debt instrument.

+ References

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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.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition

The reference rate for the variable rate of the debt instrument, such as LIBOR or the US Treasury rate and the maturity of the reference rate used, such as three months or six months LIBOR.

+ References

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Contractual interest rate for funds borrowed, under the debt agreement.

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- Definition

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, after accumulated amortization, of debt issuance costs. Includes, but is not limited to, legal, accounting, underwriting, printing, and registration costs.

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Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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-Name Accounting Standards Codification
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Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt, classified as current. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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Amount after unamortized (discount) premium and debt issuance costs of long-term debt classified as noncurrent and excluding amounts to be repaid within one year or the normal operating cycle, if longer. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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Amount of long-term debt classified as other.

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