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COMMON EQUITY - COMMON STOCK DIVIDENDS (Details) - $ / shares		3 Months Ended		9 Months Ended
	Dec. 01, 2018	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Dividends Payable
Quarterly cash dividend declared (in dollars per share)		$ 0.5525	$ 0.5200	$ 1.6575	$ 1.5600
Subsequent event
Dividends Payable
Quarterly cash dividend declared (in dollars per share)	$ 0.5525

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- Definition

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

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.3-04)
-URI http://asc.fasb.org/extlink&oid=27012166&loc=d3e187085-122770

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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.

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