Line of Credit Facility, Covenant Terms, Debt to Assets Ratio, Maximum

No definition available.

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- Definition

Line of Credit Facility, Covenant Terms, Debt to Equity Ratio, Maximum

+ References

No definition available.

+ Details

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- Definition

Line Of Credit Facility, Number Of Types Of Borrowing Available

+ References

No definition available.

+ Details

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- Definition

Line Of Credit Facility, Termination Notice, Number Of Business Days

+ References

No definition available.

+ Details

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- Definition

Number Of Lenders In Syndicate

+ References

No definition available.

+ Details

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- Definition

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

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 45
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=114775744&loc=d3e28551-108399

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 55
-Paragraph 8
-URI http://asc.fasb.org/extlink&oid=114775985&loc=d3e28878-108400

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Period of time between issuance and maturity of debt instrument, in PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

No definition available.

+ 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

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-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

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-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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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

+ References

+ Details

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Namespace Prefix:	us-gaap_
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Balance Type:	credit
Period Type:	instant

- 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.

+ References

No definition available.

+ Details

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- Details

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- Details

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- Details

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- Details

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Long-Term Debt (Narrative) (Details)	1 Months Ended	12 Months Ended
Long-Term Debt (Narrative) (Details)	Jan. 31, 2019 USD ($)	Dec. 31, 2018 USD ($) type_of_borrowing business_day lender	Dec. 31, 2017 USD ($)
Short-term Debt [Line Items]
Maximum borrowing capacity		$ 800,000,000.0	$ 800,000,000
Number of lenders in syndicate \| lender		13
Credit facility outstanding		$ 70,000,000	$ 0
Debt to equity ratio, max		65.00%
Debt to assets ratio, max		15.00%
Number of types of borrowing that may be elected under the facility \| type_of_borrowing		4
Number of business days' notice to terminate facility \| business_day		3
Commercial paper
Short-term Debt [Line Items]
Maximum borrowing capacity		$ 800,000,000.0
Letters of credit
Short-term Debt [Line Items]
Maximum borrowing capacity		125,000,000.0
Letters of credit
Short-term Debt [Line Items]
Credit facility outstanding		$ 0
Subsequent Event
Short-term Debt [Line Items]
Maximum borrowing capacity	$ 1,200,000,000
Subsequent Event \| Term Loan Facility
Short-term Debt [Line Items]
Maturities (term)	5 years
Debt to equity ratio, max	425.00%
Long-term debt	$ 500,000,000