No definition available.

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- Definition

Aggregate dividends declared during the period for each share of common stock outstanding

+ References

No definition available.

+ Details

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- Definition

The per share amount of a dividend declared, but not paid.

+ References

No definition available.

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- Definition

Amount of current borrowing capacity under the credit facility considering any current restrictions on the amount that could be borrowed (for example, borrowings may be limited by the amount of current assets), but without considering any amounts currently outstanding under the facility.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.19(b),22(b))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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- Definition

Date the credit facility terminates, in CCYY-MM-DD format.

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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.

+ References

No definition available.

+ Details

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- 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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- Definition

Weighted average interest rate of short-term debt outstanding calculated over time.

+ References

No definition available.

+ Details

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- Definition

For the form of debt having an initial term of less than one year or less than the normal operating cycle, if longer, average borrowings during the period.

+ References

No definition available.

+ Details

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Long-Term Debt and Common Stock (Details) - USD ($)	6 Months Ended
Long-Term Debt and Common Stock (Details) - USD ($)	Jun. 30, 2018	Jun. 30, 2017	Dec. 31, 2017
Debt Instrument [Abstract]
Dividends Common Stock Declared	$ 0.1850
Dividends Payable, Amount Per Share After Increase	$ 0.22
Line of Credit Facility [Line Items]
Weighted average interest rate (in hundredths)	1.97%
Commercial Paper [Member]
Line of Credit Facility [Line Items]
Borrowings Outstanding	$ 0		$ 0
Average Outstanding Amount	17,000,000	$ 0
Uncommitted Credit Facility [Member]
Line of Credit Facility [Line Items]
Borrowings Outstanding	0		0
Revolving Credit Agreement 2020 [Member]
Line of Credit Facility [Line Items]
Borrowings Outstanding	0		$ 0
Line of Credit Facility, Maximum Borrowing Capacity	$ 2,000,000,000
Line of Credit Facility, Expiration Date	Jul. 21, 2020
Eurodollar [Member] \| Revolving Credit Agreement 2020 [Member]
Line of Credit Facility [Line Items]
Weighted average interest rate (in hundredths)	3.09%
Base Rate [Member] \| Revolving Credit Agreement 2020 [Member]
Line of Credit Facility [Line Items]
Weighted average interest rate (in hundredths)	5.00%