Period Notice Of Termination For Reimbursements For All Employee Costs

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- Definition

Related Party Transaction, Period of Written Prior Notice Prior to Contract Termination

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- Definition

Related Party Transactions, Expense Reimbursement Annual Caps

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- Definition

Related Party Transactions, Expense Reimbursement Annual Caps, Remainder of Year and Thereafter

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- Definition

Revenue From Related Party As Percent of Total Revenue

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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.

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Related Party Transactions - Narrative (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Related Party Transaction [Line Items]
Partnership's revenues from affiliated companies as a percent of total revenues	8.00%	6.00%
Subsidiary of Common Parent \| CenterPoint \| Three Services Included in Transportation and Storage Agreements
Related Party Transaction [Line Items]
Period of written notice	180 days
CenterPoint and OGE Energy \| Minimum
Related Party Transaction [Line Items]
Period notice of termination for reimbursements for all employee costs	90 days
OGE Energy \| Defined Benefit and Retiree Medical Plans
Related Party Transaction [Line Items]
Expense reimbursement, 2018 and thereafter	$ 5
OGE Energy \| Certain Services and Support Functions
Related Party Transaction [Line Items]
Expense reimbursement annual caps	1
CenterPoint \| Certain Services and Support Functions
Related Party Transaction [Line Items]
Expense reimbursement annual caps	$ 0