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The amount of cash paid during the current period to foreign, federal, state, and local authorities as taxes on income, net of any cash received during the current period as refunds for the overpayment of taxes.

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The amount of cash paid for interest during the period net of cash paid for interest that is capitalized.

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Supplemental Cash Flow Information (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended			1 Months Ended	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2010 Paulsboro Refinery [Member]	Dec. 31, 2010 Paulsboro Refinery [Member]	Dec. 31, 2010 Delaware City Refinery [Member]
Decrease (increase) in current assets:
Receivables, net	$ 437	$ (3,110)	$ (679)
Inventories	(282)	643	(407)
Income taxes receivable	51	128	545
Prepaid expenses and other	(28)	(2)	107
Increase (decrease) in current liabilities:
Accounts payable	(113)	2,004	670
Accrued expenses	13	(18)	(99)
Taxes other than income taxes	(260)	312	(66)
Income taxes payable	(120)	124	(3)
Changes in current assets and current liabilities	(302)	81	68
Cash Flows Related to Interest and Income Taxes
Interest paid in excess of amount capitalized	302	397	457
Income taxes paid (received), net	705	486	(690)
Cash Flows Related to Discontinued Operations
Cash provided by (used in) operating activities					88	(26)
Cash used in investing activities					(41)	0
Supplemental Cash Flow Information (Textual)
Note receivable, noncash consideration received				$ 160