XML 47 R38.htm IDEA: XBRL DOCUMENT v3.10.0.1

Revenue from Contracts with Customers (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Disaggregation of Revenue [Line Items]
Revenues from contracts with customers	$ 547.7	$ 0.0	$ 1,025.6	$ 0.0
Residential
Disaggregation of Revenue [Line Items]
Revenues from contracts with customers	217.3		413.5
Commercial
Disaggregation of Revenue [Line Items]
Revenues from contracts with customers	152.4		270.2
Industrial
Disaggregation of Revenue [Line Items]
Revenues from contracts with customers	47.7		89.4
Oilfield
Disaggregation of Revenue [Line Items]
Revenues from contracts with customers	37.7		71.5
Public authorities and street light
Disaggregation of Revenue [Line Items]
Revenues from contracts with customers	51.1		92.8
System sales revenues
Disaggregation of Revenue [Line Items]
Revenues from contracts with customers	506.2		937.4
Provision for rate refund
Disaggregation of Revenue [Line Items]
Revenues from contracts with customers	(16.5)		(19.7)
Integrated market
Disaggregation of Revenue [Line Items]
Revenues from contracts with customers	13.1		21.8
Transmission
Disaggregation of Revenue [Line Items]
Revenues from contracts with customers	40.2		76.0
Other
Disaggregation of Revenue [Line Items]
Revenues from contracts with customers	$ 4.7		$ 10.1

X

- 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

Name:	us-gaap_DisaggregationOfRevenueLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 4
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=109196051&loc=SL49130543-203045

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 1
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=109196051&loc=SL49130539-203045

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 5
-URI http://asc.fasb.org/extlink&oid=109196051&loc=SL49130545-203045

+ Details

Name:	us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

X

- Details

Name:	srt_MajorCustomersAxis=oge_ResidentialMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	srt_MajorCustomersAxis=oge_CommercialMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	srt_MajorCustomersAxis=oge_IndustrialMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	srt_MajorCustomersAxis=oge_OilfieldMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	srt_MajorCustomersAxis=oge_PublicAuthorityMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	srt_MajorCustomersAxis=oge_TotalRetailCustomerMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	oge_NonRetailRevenuesAxis=oge_ProvisionforRateRefundMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	oge_NonRetailRevenuesAxis=oge_IntegratedMarketMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	oge_NonRetailRevenuesAxis=oge_TransmissionMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	oge_NonRetailRevenuesAxis=oge_OtherContractswithCustomersMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: