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Lease Operations (Tables)

12 Months Ended

Dec. 31, 2018

Leases [Abstract]

Schedule of Future Minimum Rental Payments Receivable for Operating Leases [Table Text Block]

The following is a schedule of minimum future rental revenue on the non-cancellable operating leases as of December 31, 2018:

(In millions)	Related Party				Third Party				Total
2019	$	748			$	160			$	908
2020	750				159				909
2021	627				150				777
2022	627				148				775
2023	616				142				758
2024 and thereafter	2,321				1,111				3,432
Total minimum future rentals	$	5,689			$	1,870			$	7,559

Schedule of Property Subject to or Available for Operating Lease [Table Text Block]

The following schedule summarizes MPLX’s investment in assets held for operating lease by major classes as of December 31, 2018 and 2017:

		December 31,
(In millions)		2018				2017
Natural gas gathering and NGL transportation pipelines and facilities		$	964			$	851
Processing, fractionation and storage facilities		1,398				573
Pipelines and related assets		266				253
Barges and towing vessels		619				491
Terminals and related assets		1,178				822
Refinery related assets		938				—
Land, building, office equipment and other		162				44
Construction-in-progress		189				85
Total		5,714				3,119
Less accumulated depreciation		2,038				1,056
Property, plant and equipment, net		$	3,676			$	2,063

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- Definition

Tabular disclosure of future minimum payments receivable in the aggregate and for each of the five succeeding fiscal years for operating leases having initial or remaining noncancelable lease terms in excess of one year.

+ References

No definition available.

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- Definition

Tabular disclosure of lessor's property under leasing agreements and property available for lease (not currently under lease) by property class, the gross amount, accumulated depreciation and net amount of as of the balance sheet date.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 840
-SubTopic 20
-Section 50
-Paragraph 4
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=84164653&loc=d3e41551-112718

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