Supplemental Cash Flow Information (Tables)

9 Months Ended

Sep. 30, 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):

	Nine Months Ended September 30,
	2012			2011
Decrease (increase) in current assets:
Receivables, net	$	1,293		$	(1,963	)
Inventories	(116		)	891
Income taxes receivable	172			333
Prepaid expenses and other	(25		)	12
Increase (decrease) in current liabilities:
Accounts payable	(150		)	1,191
Accrued expenses	10			137
Taxes other than income taxes	55			99
Income taxes payable	112			140
Changes in current assets and current liabilities	$	1,351		$	840

Cash flows related to interest and income taxes

Cash flows related to interest and income taxes were as follows (in millions):

	Nine Months Ended September 30,
	2012		2011
Interest paid in excess of amount capitalized	$	206	$	276
Income taxes paid, net	238		289