Financial and Derivative Instruments (Tables)

12 Months Ended

Dec. 31, 2012

Derivative Instruments and Hedging Activities Disclosure [Abstract]

Consolidated Balance Sheet: Fair Value of Derivatives not Designated as Hedging Instruments

Consolidated Balance Sheet: Fair Value of Derivatives Not Designated as Hedging Instruments

Type of	Balance Sheet	At December 31		At December 31
Contract	Classification	2012		2011
Commodity	Accounts and notes receivable, net	$	57	$	133
Commodity	Long-term receivables, net	29		75
Total Assets at Fair Value		$	86	$	208
Commodity	Accounts payable	$	112	$	36
Commodity	Deferred credits and other noncurrent obligations	37		66
Total Liabilities at Fair Value		$	149	$	102

Consolidated Statement of Income: The Effect of Derivatives not Designated as Hedging Instruments

Consolidated Statement of Income: The Effect of Derivatives Not Designated as Hedging Instruments

		Gain/(Loss)
Type of Derivative	Statement of	Year ended December 31
Contract	Income Classification	2012			2011			2010
Commodity	Sales and other operating revenues	$	(49	)	$	(255	)	$	(98	)
Commodity	Purchased crude oil and products	(24		)	15			(36		)
Commodity	Other income	6			(2		)	(1		)
		$	(67	)	$	(242	)	$	(135	)