Long-Term Debt And Borrowing Arrangements (Schedule Of Long-Term Debt) (Detail) - USD ($) $ in Millions	3 Months Ended	9 Months Ended
Sep. 30, 2020	Sep. 30, 2020	Dec. 31, 2019
Debt Instrument [Line Items]
Long-term debt	$ 1,200	$ 1,200
Other	24	24	$ 28
Short-term debt and current portion of long-term debt	19	19	19
Long-term debt	$ 4,145	$ 4,145	3,416
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			336
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	$ 0	$ 0	200
Debt Instrument, Maturity Date, Description		April 2023
Debt Instrument, Face Amount	100	$ 100
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	352	$ 352	336
Debt Instrument, Maturity Date, Description		November 2024
Senior Notes [Member] \| Floating Rate Term Loan Due February Two Thousand Twenty Seven [Member]
Debt Instrument [Line Items]
Debt Instrument, Face Amount	1,200	$ 1,200
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	293	$ 293	280
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	410	$ 410	393
Debt Instrument, Maturity Date, Description		January 2026
Senior Notes [Member] \| Ten and One over two
Debt Instrument [Line Items]
Long-term debt	486	$ 486	0
Senior Notes [Member] \| Five and three over four Senior Notes
Debt Instrument [Line Items]
Long-term debt	723	723	400
Debt Instrument, Face Amount	$ 350	350
Loans Payable [Member] \| Floating Rate Term Loan Due February Two Thousand Twenty Seven [Member]
Debt Instrument [Line Items]
Debt Instrument, Basis Spread on Variable Rate	3.92%
Long-term debt	$ 1,201	$ 1,201	1,112
Debt Instrument, Maturity Date, Description		August 2027
Debt Instrument, Description of Variable Rate Basis	225 basis points
Percentage Of Margin Aggregate Interest Rate	2.43%
Senior Notes and Loans Payable [Member]
Debt Instrument [Line Items]
Deferred Finance Costs, Net	$ (50)	$ (50)	(39)
Long-term Debt	$ 4,164	$ 4,164	$ 3,435

Percentage Of Margin Aggregate Interest Rate.

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

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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.

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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.

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

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

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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, 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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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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