Supplemental Cash Flow Information (Tables)

3 Months Ended

Mar. 31, 2012

Supplemental Cash Flow Information [Abstract]

Changes in current assets and current liabilities

In order to determine net cash provided by operating activities, net income is adjusted by, among other things, changes in current assets and current liabilities as follows (in millions) for the three months ended March 31, 2012 and 2011:

	2012			2011
Decrease (increase) in current assets:
Receivables, net	$	1,319		$	(1,258	)
Inventories	(471		)	622
Income taxes receivable	(14		)	(25		)
Prepaid expenses and other	6			10
Increase (decrease) in current liabilities:
Accounts payable	410			2,143
Accrued expenses	(100		)	174
Taxes other than income taxes	9			(160		)
Income taxes payable	(96		)	97
Changes in current assets and current liabilities	$	1,063		$	1,603

Cash flows related to interest and income taxes

Cash flows related to interest and income taxes were as follows (in millions) for the three months ended March 31, 2012 and 2011:

	2012		2011
Interest paid in excess of amount capitalized	$	45	$	77
Income taxes paid, net	142		3