Consolidated Statements of Cash Flows (USD $) In Millions	6 Months Ended
Jun. 30, 2011	Jun. 30, 2010
Cash flows from operating activities:
Net income	$ 462	$ 491
Adjustments to reconcile to net cash provided by operating activities:
Depreciation, decommissioning and amortization	700	629
Regulatory impacts of net nuclear decommissioning trust earnings (reflected in accumulated depreciation)	75	74
Other amortization	62	50
Stock-based compensation	8	8
Deferred income taxes and investment tax credits	436	221
Changes in operating assets and liabilities:
Receivables	61	(41)
Inventory	1	(2)
Margin and collateral deposits - net of collateral received	(8)
Prepaid taxes	107	(167)
Other current assets	(167)	(189)
Accounts payable	15	(104)
Accrued taxes	(18)	22
Other current liabilities	(191)	(75)
Derivative assets and liabilities - net	326	841
Regulatory assets and liabilities - net	(260)	(720)
Other assets	(191)	(18)
Other liabilities	(33)	75
Net cash provided by operating activities	1,385	1,095
Cash flows from financing activities:
Long-term debt issued	497	638
Long-term debt issuance costs	(5)	(9)
Long-term debt repaid	(3)	(253)
Bonds purchased	(56)
Preference stock issued - net	123
Short-term debt financing - net	200	215
Settlements of stock-based compensation - net	(7)	(1)
Dividends paid	(258)	(125)
Net cash provided by financing activities	491	465
Cash flows from investing activities:
Capital expenditures	(2,019)	(1,757)
Proceeds from sale of nuclear decommissioning trust investments	1,146	600
Purchases of nuclear decommissioning trust investments and other	(1,230)	(697)
Customer advances for construction and other investments	12	9
Effect of deconsolidation of variable interest entities		(92)
Net cash used by investing activities	(2,091)	(1,937)
Net decrease in cash and cash equivalents	(215)	(377)
Cash and cash equivalents, beginning of period	257	462
Cash and cash equivalents, end of period	$ 42	$ 85

The current period expense charged against earnings on long-lived, physical assets used in the normal conduct of business and not intended for resale to allocate or recognize the cost of assets over their useful lives; and to record the reduction in book value of an intangible asset over the benefit period of such asset; and to record the costs of decontaminating and decommissioning of facilities.

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The net cash inflow (outflow) from investing activity.

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