Consolidated Balance Sheets - USD ($) $ in Millions	Sep. 30, 2018	Dec. 31, 2017
Current assets:
Cash and cash equivalents (MPLX: $37 and $5, respectively)	$ 4,992	$ 3,011
Receivables, less allowance for doubtful accounts of $10 and $11 (MPLX: $462 and $299, respectively)	5,408	4,695
Inventories (MPLX: $81 and $65, respectively)	5,339	5,550
Other current assets (MPLX: $33 and $29, respectively)	134	145
Total current assets	15,873	13,401
Equity method investments (MPLX: $4,104 and $4,010, respectively)	4,910	4,787
Property, plant and equipment, net (MPLX: $14,271 and $12,187, respectively)	27,717	26,443
Goodwill (MPLX: $2,586 and $2,245, respectively)	3,713	3,586
Other noncurrent assets (MPLX: $470 and $479, respectively)	818	830
Total assets	53,031	49,047
Current liabilities:
Accounts payable (MPLX: $757 and $621, respectively)	8,016	8,297
Payroll and benefits payable (MPLX: $2 and $1, respectively)	493	591
Accrued taxes (MPLX: $53 and $38, respectively)	657	670
Debt due within one year (MPLX: $1 and $1, respectively)	26	624
Other current liabilities (MPLX: $224 and $130, respectively)	442	296
Total current liabilities	9,634	10,478
Long-term debt (MPLX: $12,889 and $6,945, respectively)	18,423	12,322
Deferred income taxes (MPLX: $13 and $5, respectively)	3,206	2,654
Defined benefit postretirement plan obligations	1,045	1,099
Deferred credits and other liabilities (MPLX: $274 and $230, respectively)	689	666
Total liabilities	32,997	27,219
Commitments and contingencies (see Note 22)
Redeemable noncontrolling interest	1,003	1,000
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 – 735 million and 734 million shares (par value $0.01 per share, 1 billion shares authorized)	7	7
Held in treasury, at cost – 284 million and 248 million shares	(12,495)	(9,869)
Additional paid-in capital	13,703	11,262
Retained earnings	14,119	12,864
Accumulated other comprehensive loss	(168)	(231)
Total MPC stockholders’ equity	15,166	14,033
Noncontrolling interests	3,865	6,795
Total equity	19,031	20,828
Total liabilities, redeemable noncontrolling interest and equity	$ 53,031	$ 49,047