XML 95 R54.htm IDEA: XBRL DOCUMENT v3.25.4

Leases Disclosure (Tables)

12 Months Ended

Dec. 31, 2025

Leases [Abstract]

Lease, Cost [Table Text Block]

The components of lease cost were as follows:

			2025												2024												2023
(In millions)			Related Party						Third Party						Related Party						Third Party						Related Party						Third Party
Components of lease costs:
Operating lease costs			$	15					$	60					$	14					$	58					$	14					$	56
Finance lease cost:
Amortization of ROU assets			—						2						—						1						—						1
Interest on lease liabilities			—						1						—						—						—						—
Total finance lease cost			—						3						—						1						—						1
Variable lease cost			4						14						4						12						4						10
Short-term lease cost			1						70						1						71						1						61
Total lease cost			$	20					$	147					$	19					$	142					$	19					$	128

Supplemental Balance Sheet Disclosures [Text Block]

Supplemental balance sheet data related to leases were as follows:

			December 31, 2025												December 31, 2024
(In millions, except % and years)			Related Party						Third Party						Related Party						Third Party
Operating leases
Assets
Right of use assets			$	239					$	276					$	226					$	273
Liabilities
Operating lease liabilities			2						53						2						45
Long-term operating lease liabilities			237						217						224						217
Total operating lease liabilities			$	239					$	270					$	226					$	262
Weighted average remaining lease term			40 years						7 years						42 years						8 years
Weighted average discount rate			5.8		%				4.3		%				5.8		%				4.2		%
Finance leases
Assets
Property, plant and equipment, gross									$	12											$	10
Less: Accumulated depreciation									6												5
Property, plant and equipment, net									6												5
Liabilities
Long-term debt due within one year									2												1
Long-term debt									4												5
Total finance lease liabilities									$	6											$	6
Weighted average remaining lease term									21 years												22 years
Weighted average discount rate									5.8		%										6.0		%

Lessee, Operating Lease, Liability, to be Paid, Maturity

As of December 31, 2025, maturities of lease liabilities for operating lease obligations and finance lease obligations having initial or remaining non-cancellable lease terms in excess of one year are as follows:

(In millions)			Related Party Operating Leases						Third Party Operating Leases						Finance Leases
2026			$	16					$	62					$	3
2027			16						54						2
2028			16						47						—
2029			15						36						—
2030			15						28						—
2031 and thereafter			537						84						7
Gross lease payments			615						311						12
Less: Imputed interest			376						41						6
Total lease liabilities			$	239					$	270					$	6

Finance Lease, Liability, to be Paid, Maturity

As of December 31, 2025, maturities of lease liabilities for operating lease obligations and finance lease obligations having initial or remaining non-cancellable lease terms in excess of one year are as follows:

(In millions)			Related Party Operating Leases						Third Party Operating Leases						Finance Leases
2026			$	16					$	62					$	3
2027			16						54						2
2028			16						47						—
2029			15						36						—
2030			15						28						—
2031 and thereafter			537						84						7
Gross lease payments			615						311						12
Less: Imputed interest			376						41						6
Total lease liabilities			$	239					$	270					$	6

Operating Lease, Lease Income [Table Text Block]

Lease revenues included on the Consolidated Statements of Income during 2025, 2024 and 2023 were as follows:

			2025												2024												2023
(In millions)			Related Party						Third Party						Related Party						Third Party						Related Party						Third Party
Operating leases:
Rental income			$	889					$	260					$	853					$	251					$	822					$	243
Sales-type leases:
Interest income (Sales-type rental revenue - fixed minimum)			431						113						455						114						467						114
Interest income (Revenue from variable lease payments)			17						38						20						22						33						22
Sales-type lease revenue			$	448					$	151					$	475					$	136					$	500					$	136

Sales-type Lease, Lease Income [Table Text Block]

Lease revenues included on the Consolidated Statements of Income during 2025, 2024 and 2023 were as follows:

			2025												2024												2023
(In millions)			Related Party						Third Party						Related Party						Third Party						Related Party						Third Party
Operating leases:
Rental income			$	889					$	260					$	853					$	251					$	822					$	243
Sales-type leases:
Interest income (Sales-type rental revenue - fixed minimum)			431						113						455						114						467						114
Interest income (Revenue from variable lease payments)			17						38						20						22						33						22
Sales-type lease revenue			$	448					$	151					$	475					$	136					$	500					$	136

Lessor, Operating Lease, Payment to be Received, Fiscal Year Maturity [Table Text Block]

The following is a schedule of minimum future rental payments to be received on the non-cancellable operating leases as of December 31, 2025:

(In millions)			Related Party						Third Party						Total
2026			$	835					$	107					$	942
2027			721						80						801
2028			418						73						491
2029			264						71						335
2030			254						58						312
2031 and thereafter			519						182						701
Total minimum future rentals			$	3,011					$	571					$	3,582

Sales-type and Direct Financing Leases, Lease Receivable, Maturity [Table Text Block]

Annual minimum undiscounted lease payment receipts under our sales-type leases were as follows as of December 31, 2025:

(In millions)			Related Party						Third Party						Total
2026			$	472					$	181					$	653
2027			390						163						553
2028			109						154						263
2029			56						146						202
2030			56						138						194
2031 and thereafter			63						903						966
Total minimum future rentals			1,146						1,685						2,831
Less: Imputed interest			456						691						1,147
Lease receivable(1)			$	690					$	994					$	1,684
Current lease receivables(2)			$	269					$	108					$	377
Long-term lease receivables(3)			421						886						1,307
Unguaranteed residual assets(3)			263						117						380
Total sales-type lease assets			$	953					$	1,111					$	2,064

(1)    This amount does not include the unguaranteed residual assets.

(2)    The related-party balance is presented in Current assets - related parties and the third-party balance is presented in Receivables, net in the Consolidated Balance Sheets.

(3)    The related-party balance is presented in Noncurrent assets - related parties and the third-party balance is presented in Other noncurrent assets in the Consolidated Balance Sheets.

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

The following schedule summarizes MPLX’s investment in assets held under operating lease by major classes as of December 31, 2025 and 2024:

			December 31,
(In millions)			2025						2024
Pipelines			$	681					$	689
Refining logistics			1,774						1,430
Terminals			1,440						1,310
Marine			126						126
Gathering and transportation			111						86
Processing and fractionation			1,017						1,039
Land, building and other			161						171
Total property, plant and equipment			5,310						4,851
Less: accumulated depreciation			2,731						2,378
Property, plant and equipment, net			$	2,579					$	2,473

X

- Definition

Tabular disclosure of undiscounted cash flows of finance lease liability. Includes, but is not limited to, reconciliation of undiscounted cash flows to finance lease liability recognized in statement of financial position.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 842
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 6
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147478964/842-20-50-6

+ Details

Name:	us-gaap_FinanceLeaseLiabilityMaturityTableTextBlock
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:textBlockItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Tabular disclosure of lessee's lease cost. Includes, but is not limited to, interest expense for finance lease, amortization of right-of-use asset for finance lease, operating lease cost, short-term lease cost, variable lease cost and sublease income.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 842
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 4
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147478964/842-20-50-4

+ Details

Name:	us-gaap_LeaseCostTableTextBlock
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:textBlockItemType
Balance Type:	na
Period Type:	duration

X

- References

No definition available.

+ Details

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

X

- Definition

Tabular disclosure of undiscounted cash flows of lessee's operating lease liability. Includes, but is not limited to, reconciliation of undiscounted cash flows to operating lease liability recognized in statement of financial position.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 842
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 6
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147478964/842-20-50-6

+ Details

Name:	us-gaap_LesseeOperatingLeaseLiabilityMaturityTableTextBlock
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:textBlockItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Tabular disclosure of maturity of undiscounted cash flows to be received by lessor on annual basis for operating lease.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 842
-SubTopic 30
-Name Accounting Standards Codification
-Section 50
-Paragraph 12
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479773/842-30-50-12

+ Details

Name:	us-gaap_LessorOperatingLeasePaymentsToBeReceivedMaturityTableTextBlock
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:textBlockItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Tabular disclosure of components of income from operating lease.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 842
-SubTopic 30
-Name Accounting Standards Codification
-Section 50
-Paragraph 5
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479773/842-30-50-5

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 270
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 6A
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482964/270-10-50-6A

+ Details

Name:	us-gaap_OperatingLeaseLeaseIncomeTableTextBlock
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:textBlockItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Tabular disclosure of maturity of undiscounted cash flows to be received on annual basis for sales-type and direct financing leases receivable. Includes, but is not limited to, reconciliation to lease receivable recognized in statement of financial position.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 842
-SubTopic 30
-Name Accounting Standards Codification
-Section 50
-Paragraph 10
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479773/842-30-50-10

+ Details

Name:	us-gaap_SalesTypeAndDirectFinancingLeasesLeaseReceivableMaturityTableTextBlock
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:textBlockItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Tabular disclosure of components of income from sales-type lease.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 842
-SubTopic 30
-Name Accounting Standards Codification
-Section 50
-Paragraph 5
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479773/842-30-50-5

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 270
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 6A
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482964/270-10-50-6A

+ Details

Name:	us-gaap_SalesTypeLeaseLeaseIncomeTableTextBlock
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:textBlockItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Tabular disclosure of lessor's underlying asset for which right to use has been conveyed to lessee under operating lease.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/otherTransitionRef
-Topic 840
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 4
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481501/840-20-50-4

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 842
-SubTopic 30
-Name Accounting Standards Codification
-Section 50
-Paragraph 13
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479773/842-30-50-13

Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 360
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482099/360-10-50-1

+ Details

Name:	us-gaap_ScheduleOfPropertySubjectToOrAvailableForOperatingLeaseTextBlock
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:textBlockItemType
Balance Type:	na
Period Type:	duration

X

- Definition

The entire disclosure for supplemental balance sheet disclosures, including descriptions and amounts for assets, liabilities, and equity.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 210
-Name Accounting Standards Codification
-Publisher FASB
-URI https://asc.fasb.org/210/tableOfContent

+ Details

Name:	us-gaap_SupplementalBalanceSheetDisclosuresTextBlock
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:textBlockItemType
Balance Type:	na
Period Type:	duration