Consolidated Balance Sheets - USD ($) $ in Millions	Mar. 31, 2017	Dec. 31, 2016
Current assets:
Cash and cash equivalents (MPLX: $265 and $234, respectively)	$ 2,167	$ 887
Receivables, less allowance for doubtful accounts of $10 and $12 (MPLX: $276 and $304, respectively)	3,284	3,617
Inventories (MPLX: $62 and $55, respectively)	5,392	5,656
Other current assets (MPLX: $31 and $33, respectively)	199	241
Total current assets	11,042	10,401
Equity method investments (MPLX: $3,306 and $2,471, respectively)	4,704	3,827
Property, plant and equipment, net (MPLX: $11,411 and $11,408, respectively)	25,669	25,765
Goodwill (MPLX: $2,245 and $2,245, respectively)	3,586	3,587
Other noncurrent assets (MPLX: $499 and $506, respectively)	820	833
Total assets	45,821	44,413
Current liabilities:
Accounts payable (MPLX: $485 and $541, respectively)	5,343	5,593
Payroll and benefits payable (MPLX: $0 and $1, respectively)	528	530
Consumer excise taxes payable (MPLX: $2 and $3, respectively)	482	464
Accrued taxes (MPLX: $29 and $35, respectively)	135	153
Debt due within one year (MPLX: $1 and $1, respectively)	28	28
Other current liabilities (MPLX: $98 and $81, respectively)	350	378
Total current liabilities	6,866	7,146
Long-term debt (MPLX: $6,654 and $4,422, respectively)	12,570	10,544
Deferred income taxes (MPLX: $6 and $6, respectively)	3,888	3,861
Defined benefit postretirement plan obligations	1,085	1,055
Deferred credits and other liabilities (MPLX: $187 and $189, respectively)	615	604
Total liabilities	25,024	23,210
Commitments and contingencies (see Note 21)
Redeemable noncontrolling interest	1,000	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 – 731 million and 731 million shares (par value 0.01 per share, 1 billion shares authorized)	7	7
Held in treasury, at cost – 212 million and 203 million shares	(7,905)	(7,482)
Additional paid-in capital	11,159	11,060
Retained earnings	10,046	10,206
Accumulated other comprehensive loss	(237)	(234)
Total MPC stockholders’ equity	13,070	13,557
Noncontrolling interests	6,727	6,646
Total equity	19,797	20,203
Total liabilities, redeemable noncontrolling interest and equity	$ 45,821	$ 44,413

Carrying value as of the balance sheet date of liabilities incurred (and for which invoices have typically been received) and payable to vendors for goods and services received that are used in an entity's business. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).

Name:	us-gaap_AccountsPayableCurrent
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Amount due from customers or clients, within one year of the balance sheet date (or the normal operating cycle, whichever is longer), for goods or services (including trade receivables) that have been delivered or sold in the normal course of business, reduced to the estimated net realizable fair value by an allowance established by the entity of the amount it deems uncertain of collection.