XBRL Cloud: Business Report

Rendering

Component: (Network and Table)
Network	2413402 - Disclosure - Income Taxes (Narrative) (Detail) (http://ww.mplx.com/role/IncomeTaxesNarrativeDetail)
Table	Income Taxes [Table]

Slicers (applies to each fact value in each table cell)

Reporting Entity [Axis]

0001552000 (http://www.sec.gov/CIK)

Income Taxes [Line Items]	Period [Axis]
	2013-01-01 - 2013-12-31		2012-01-01 - 2012-12-31			2011-01-01 - 2011-12-31
	Scenario [Axis]		Scenario [Axis]			Scenario [Axis]
	Scenario, Unspecified [Domain]		Predecessor And Successor [Member]	Scenario, Unspecified [Domain]		Predecessor [Member]		Predecessor And Successor [Member]
	Range [Axis]		Range [Axis]	Range [Axis]		Range [Axis]		Range [Axis]
	Maximum [Member]	Range [Domain]	Range [Domain]	Maximum [Member]	Range [Domain]	Maximum [Member]	Range [Domain]	Range [Domain]
Income tax expense		(200,000)	300,000				100,000	100,000
Income tax rate		(.001)	.002				.001
Unrecognized tax benefits		0			200,000		0
Unrecognized tax benefits affecting effective income tax rate	100,000
Uncertain tax positions		0
Interest and penalties, net expenses		(100,000)	100,000			100,000
Accrual of interest and penalties	100,000			100,000
Net deferred tax liability		0			0