Supplemental Cash Flow Information

6 Months Ended

Jun. 30, 2012

Supplemental Cash Flow Information [Abstract]

A detailed analysis of the changes in assets and liabilities that are reported in the Consolidated Statements of Cash Flows follows (in millions):



	Six Months Ended
	June 30
	2012			2011
Changes in Assets and Liabilities, Exclusive of Changes Shown Separately
Accounts receivable, net	$	120		$	65
Inventories	81			(23		)
Accrued pensions	6			(187		)
Accounts payable	(4		)	27
Income taxes payable/receivable	(39		)	242
Derivative assets and liabilities	26			(20		)
Gas inventory equalization	65			109
Postretirement obligation	(142		)	(55		)
Other assets	299			202
Other liabilities	(112		)	(94		)
	$	300		$	266



Noncash financing activities:
Common stock issued for employee benefit plans	$	80	$	1

- Definition

The entire disclosure for supplemental cash flow activities, including cash, noncash, and part noncash transactions, for the period. Noncash is defined as information about all investing and financing activities of an enterprise during a period that affect recognized assets or liabilities but that do not result in cash receipts or cash payments in the period. "Part noncash" refers to that portion of the transaction not resulting in cash receipts or cash payments in the period.

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