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Long-Term Debt And Borrowing Arrangements (Narrative) (Detail) - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended |  |
--- | --- | --- | --- | ---
Sep. 30, 2019 | Sep. 30, 2019 | Oct. 01, 2019 | Dec. 31, 2018
Debt Instrument [Line Items] |  |  |  |
Other Long-term Debt | $ 30 | $ 30 |  | $ 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% |  |  |
Senior Notes [Member] |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Debt Instrument, Maturity Date, Description |  | July 2027 |  |
Long-term Debt, Gross | $ 400 | $ 400 |  | 0
Five And One Over Two Senior Notes [Member] | Senior Notes [Member] |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Debt Instrument, Face Amount | 75 | $ 75 |  |
Debt Instrument, Maturity Date, Description |  | April 2023 |  |
Long-term Debt, Gross | 275 | $ 275 |  | 675
Debt Instrument, Repurchase Amount | 407 | $ 407 |  |
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 | 327 | $ 327 |  | 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 | $ 272 | $ 272 |  | $ 287
Subsequent Event [Member] | Five And One Over Two Senior Notes [Member] | Senior Notes [Member] |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Debt Instrument, Face Amount |  |  | $ 75 |
Debt Instrument, Repurchase Amount |  |  | $ 76 |

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- Definition 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 -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 20 -Section 50 -Paragraph 4 -Subparagraph (b)(1) -URI http://asc.fasb.org/extlink&oid=109500613&loc=SL6031897-161870 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03(16)) -URI http://asc.fasb.org/extlink&oid=119400593&loc=d3e572229-122910 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(22)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03(16)) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 + Details
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