Other Non-Current Assets - Equity Method Investments (Details) $ in Millions |
12 Months Ended | ||
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Dec. 31, 2017
USD ($)
mi
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Dec. 31, 2016
USD ($)
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Dec. 31, 2015
USD ($)
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Investment [Line Items] | |||
Equity method investment | $ 64 | $ 10 | |
Other—related party | 3 | 0 | $ 0 |
Accounts receivable—related party | 2 | $ 0 | |
Midship Holdings [Member] | |||
Investment [Line Items] | |||
Equity method investment | 55 | ||
O&M Services [Member] | Midship Pipeline [Member] | Service Agreements [Member] | |||
Investment [Line Items] | |||
Other—related party | 3 | ||
Accounts receivable—related party | $ 2 | ||
CCL [Member] | Midship Pipeline [Member] | Natural Gas Transportation Agreement [Member] | |||
Investment [Line Items] | |||
Long-term Purchase Commitment, Period | 10 years | ||
EIG [Member] | Maximum [Member] | |||
Investment [Line Items] | |||
Investment Company, Financial Commitment to Investee, Future Amount | $ 500 | ||
Midship Pipeline [Member] | |||
Investment [Line Items] | |||
Length Of Natural Gas Pipeline | mi | 230 |
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- Definition Line items represent reporting 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. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Length Of Natural Gas Pipeline No definition available.
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- Definition Amount of receivables arising from transactions with related parties due within one year or the normal operating cycle, if longer. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition This item represents the carrying amount on the entity's balance sheet of its investment in common stock of an equity method investee. This is not an indicator of the fair value of the investment, rather it is the initial cost adjusted for the entity's share of earnings and losses of the investee, adjusted for any distributions (dividends) and other than temporary impairment (OTTI) losses recognized. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Amount of financial support committed by investment company to investee that is contractually required. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Period covered by the long-term purchase commitment, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. No definition available.
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- Definition Reflects the sum of all other revenue and income realized from sales and other transactions (excluding transactions that are eliminated in consolidated or combined financial statements) with related party during the period. No definition available.
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