Consolidated Balance Sheets - USD ($) $ in Millions	Mar. 31, 2016	Dec. 31, 2015
Current assets:
Cash and cash equivalents (MPLX: $4 and $43, respectively)	$ 308	$ 1,127
Receivables, less allowance for doubtful accounts of $11 and $12 (MPLX: $256 and $257, respectively)	2,602	2,927
Inventories (MPLX: $45 and $51, respectively)	4,983	5,225
Other current assets (MPLX: $28 and $50, respectively)	204	192
Total current assets	8,097	9,471
Equity method investments (MPLX: $2,598 and $2,458, respectively)	3,807	3,622
Property, plant and equipment, net (MPLX: $10,195 and $9,997, respectively)	25,319	25,164
Goodwill (MPLX: $2,200 and $2,570, respectively)	3,649	4,019
Other noncurrent assets (MPLX: $531 and $478, respectively)	886	839
Total assets	41,758	43,115
Current liabilities:
Accounts payable (MPLX: $424 and $449, respectively)	4,083	4,743
Payroll and benefits payable (MPLX: $1 and $18, respectively)	302	503
Consumer excise taxes payable (MPLX: $1 and $1, respectively)	459	460
Accrued taxes (MPLX: $23 and $26, respectively)	145	184
Long-term debt due within one year (MPLX: $1 and $1, respectively)	215	29
Other current liabilities (MPLX: $69 and $65, respectively)	391	426
Total current liabilities	5,595	6,345
Long-term debt (MPLX: $4,715 and $5,255, respectively)	11,351	11,896
Deferred income taxes (MPLX: $382 and $378, respectively)	3,356	3,285
Defined benefit postretirement plan obligations	1,216	1,179
Deferred credits and other liabilities (MPLX: $172 and $170, respectively)	746	735
Total liabilities	$ 22,264	$ 23,440
Commitments and contingencies (see Note 22)
MPC stockholders’ equity:
Preferred stock, no shares issued and outstanding (par value 0.01 per share, 30 million shares authorized)	$ 0	$ 0
Common stock:
Issued – 730 million and 729 million shares (par value 0.01 per share, 1 billion shares authorized)	7	7
Held in treasury, at cost – 200 million and 198 million shares	(7,353)	(7,275)
Additional paid-in capital	10,982	11,071
Retained earnings	9,584	9,752
Accumulated other comprehensive loss	(318)	(318)
Total MPC stockholders’ equity	12,902	13,237
Noncontrolling interests	6,592	6,438
Total equity	19,494	19,675
Total liabilities and equity	$ 41,758	$ 43,115