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Consolidated Balance Sheets - USD ($)
$ in Millions
Mar. 31, 2018
Dec. 31, 2017
Current assets:    
Cash and cash equivalents $ 2 $ 5
Receivables, net 300 292
Receivables - related parties 330 160
Inventories 64 65
Other current assets 33 37
Total current assets 729 559
Equity method investments 4,033 4,010
Property, plant and equipment, net 13,291 12,187
Intangibles, net 444 453
Goodwill 2,460 2,245
Long-term receivables - related parties 21 20
Other noncurrent assets 28 26
Total assets 21,006 19,500
Current liabilities:    
Accounts payable 143 151
Payables - related parties 146 516
Deferred revenue - related parties 43 43
Accrued interest payable 99 88
Other current liabilities 445 506
Total current liabilities 876 1,304
Long-term deferred revenue 49 42
Long-term deferred revenue - related parties 49 43
Long-term debt 11,861 6,945
Deferred income taxes 10 5
Deferred credits and other liabilities 183 188
Total liabilities 13,028 8,527
Commitments and contingencies (see Note 20)
Redeemable preferred units 1,000 1,000
Equity    
Total MPLX LP partners’ capital 6,832 9,827
Accumulated other comprehensive loss [1] (16) (14)
Noncontrolling interests 146 146
Total equity 6,978 9,973
Total liabilities, preferred units and equity 21,006 19,500
MPC    
Current assets:    
Receivables - related parties 308 153
Long-term receivables - related parties 21 20
Current liabilities:    
Payables - related parties 115 470
Limited Partners Common Units | Public    
Equity    
Total MPLX LP partners’ capital 8,385 8,379
Total equity 8,385 8,379
Limited Partners Common Units | MPC    
Equity    
Total MPLX LP partners’ capital (1,537) 2,099
Total equity (1,537) 2,099
General Partner | MPC    
Equity    
Total MPLX LP partners’ capital 0 (637)
Total equity 0 (637)
LOOP and Explorer    
Equity    
Accumulated other comprehensive loss $ (16) $ (14)
[1] These accumulated other comprehensive loss components are included in the computation of net periodic benefit cost by LOOP and Explorer and are therefore included in the Consolidated Statements of Income under the caption “Income (loss) from equity method investments.”