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Debt - Narrative (Details) |  | 12 Months Ended |  |  |  |
--- | --- | --- | --- | --- | --- | ---
Feb. 02, 2019 | Dec. 31, 2018 USD ($) credit_facility | Dec. 31, 2018 CAD ($) | Dec. 31, 2018 EUR (€) | Dec. 03, 2018 USD ($) | Mar. 08, 2018 USD ($) | Mar. 08, 2018 CAD ($) | Dec. 31, 2017 USD ($)
Debt Instrument [Line Items] |  |  |  |  |  |  |  |
Short-term debt and current portion of long-term debt |  | $ 251,000,000 |  |  |  |  |  | $ 299,000,000
Number of committed credit facilities | credit_facility |  | 2 |  |  |  |  |  |
Senior Notes | 4.500% Senior Notes due December 2028 |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |
Debt face value |  |  |  |  | $ 350,000,000 |  |  |
Interest rate on debt |  | 4.50% | 4.50% | 4.50% | 4.50% |  |  |
Senior Notes | 4.76% Senior Notes due March 2018 (CAD 375M) |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |
Debt face value |  |  | $ 375,000,000 |  |  |  |  |
Interest rate on debt |  | 4.76% | 4.76% | 4.76% |  | 4.76% | 4.76% |
Short-term debt and current portion of long-term debt |  |  |  |  |  | $ 291,000,000 | $ 375,000,000 |
Credit Facility Expiring February 2021 |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |
New credit and loan facility |  | $ 900,000,000 |  |  |  |  |  |
Line of credit oustanding |  | 0 |  |  |  |  |  |
Credit Facility Expiring October 2022 |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |
Line of credit oustanding |  | 0 |  |  |  |  |  |
Credit Facility Expiring October 2022 | Line of Credit |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |
New credit and loan facility |  | 400,000,000 |  |  |  |  |  |
Commercial Paper | Commercial Paper Programs |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |
Current borrowing capacity |  | 1,300,000,000 |  |  |  |  |  |
United States | Commercial Paper | Commercial Paper Programs |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |
New credit and loan facility |  | $ 600,000,000 |  |  |  |  |  |
Europe | Commercial Paper | Commercial Paper Programs |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |
New credit and loan facility | € |  |  |  | € 525,000,000 |  |  |  |
Subsequent Event | Credit Facility Expiring October 2022 | Line of Credit |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |
Extension of term | 1 year |  |  |  |  |  |  |

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- Definition Amount of short-term debt and current maturity of long-term debt and capital lease obligations due within one year or the normal operating cycle, if longer. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.19,20) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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- Definition Contractual interest rate for funds borrowed, under the debt agreement. + References Reference 1: 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(a)(1)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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- Definition The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement. + References Reference 1: 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 2: 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 Reference 3: 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=6879938&loc=d3e572229-122910 + Details
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