Select Quarterly Financial Data (Tables)

12 Months Ended

Dec. 31, 2019

Quarterly Financial Information Disclosure [Abstract]



	2019
(In millions, except per unit data)	1st Qtr.⁽¹⁾		2nd Qtr.⁽¹⁾		3rd Qtr.		4th Qtr.
Total revenues and other income	$	2,235	$	2,210	$	2,280	$	2,316
Income from operations	912		885		926		(346		)
Net income	689		657		689		(573		)
Net income attributable to MPLX LP	503		482		629		(581		)
Net income attributable to MPLX LP per limited partner unit:
Common - basic	0.61		0.56		0.61		(0.58		)
Common - diluted	0.61		0.55		0.61		(0.58		)
Cash distributions declared per limited partner common unit	0.6575		0.6675		0.6775		0.6875
Distributions declared:
Limited partner units - Public	191		261		266		270
Limited partner units - MPC	332		431		438		446
Series A preferred units	20		21		20		20
Series B preferred units	—		21		10		11
Total distributions declared	$	543	$	734	$	734	$	747



	2018
(In millions, except per unit data)	1st Qtr.		2nd Qtr.		3rd Qtr.		4th Qtr.⁽¹⁾
Total revenues and other income	$	1,420	$	1,578	$	1,712	$	2,295
Income from operations	557		608		672		891
Net income	423		456		516		611
Net income attributable to MPLX LP	421		453		510		434
Net income attributable to MPLX LP per limited partner unit:
Common - basic	0.61		0.55		0.62		0.52
Common - diluted	0.61		0.55		0.62		0.52
Cash distributions declared per limited partner common unit	0.6175		0.6275		0.6375		0.6475
Distributions declared:
Limited partner units - Public	179		181		185		187
Limited partner units - MPC	288		316		322		327
Series A preferred units	16		20		19		20
Total distributions declared	$	483	$	517	$	526	$	534

(1)

As discussed in Note 1, MPLX’s acquisition of ANDX is considered a transfer between entities under common control due to MPC’s prior relationship with ANDX. Transfers of businesses between entities under common control require prior periods to be retrospectively adjusted for those dates that the entity was under common control. Accordingly, the tables above include the historical results of ANDX beginning October 1, 2018. Amounts shown for the fourth quarter of 2018 as well as the first and second quarters of 2019 are different than amounts previously reported for Total revenues and other income, Income from operations and Net income as a results of this retrospective adjustment for ANDX. Total revenues and other income originally reported for the fourth quarter of 2018 and the first and second quarters of 2019 was $1,715 million, $1,646 million and $1,629 million, respectively. Income from operations originally reported for the fourth quarter of 2018 and the first and second quarters of 2019 was $666 million, $678 million and $659 million, respectively. Net income originally reported for the fourth quarter of 2018 and the first and second quarters of 2019 was $439 million, $509 million and $488 million, respectively.