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CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Millions | 6 Months Ended
--- | ---
Jun. 30, 2023 | Jun. 30, 2022
Cash Flows from Operating Activities |  |  |
Net (Loss)/Income |  | $ (1,027) | $ 2,249
Adjustments to reconcile net (loss)/income to cash (used)/provided by operating activities: |  |  |
Distributions from and equity in (earnings)/losses of unconsolidated affiliates |  | (9) | 16
Depreciation and amortization |  | 505 | 340
Accretion of asset retirement obligations |  | 5 | 16
Provision for credit losses |  | 80 | 51
Amortization of nuclear fuel |  | 26 | 28
Amortization of financing costs and debt discounts |  | 31 | 11
Amortization of in-the-money contracts and emissions allowances |  | 112 | 128
Amortization of unearned equity compensation |  | 61 | 14
Net gain on sale of assets and disposal of assets |  | (187) | (46)
Impairment losses |  | 0 | 155
Changes in derivative instruments |  | 1,515 | (3,918)
Changes in current and deferred income taxes and liability for uncertain tax benefits |  | (282) | 672
Changes in collateral deposits in support of risk management activities |  | (1,355) | 3,121
Changes in nuclear decommissioning trust liability |  | 2 | (5)
Uplift securitization proceeds received from ERCOT |  | 0 | 689
Changes in other working capital |  | (505) | (332)
Cash (used)/provided by operating activities |  | (1,028) | 3,189
Cash Flows from Investing Activities |  |  |
Payments for acquisitions of businesses and assets, net of cash acquired |  | (2,498) | (53)
Capital expenditures |  | (324) | (150)
Net purchases of emission allowances |  | (25) | (19)
Investments in nuclear decommissioning trust fund securities |  | (185) | (271)
Proceeds from the sale of nuclear decommissioning trust fund securities |  | 180 | 278
Proceeds from sales of assets, net of cash disposed |  | 229 | 96
Proceeds from insurance recoveries for property, plant and equipment, net |  | 121 | 0
Cash used by investing activities |  | (2,502) | (119)
Cash Flows from Financing Activities |  |  |
Proceeds from issuance of preferred stock, net of fees |  | 635 | 0
Payments of dividends to common stockholders |  | (174) | (168)
Payments for share repurchase activity | [1] | (16) | (366)
Net receipts from settlement of acquired derivatives that include financing elements |  | 318 | 950
Net proceeds of Revolving Credit Facility |  | 700 | 0
Proceeds from issuance of long-term debt |  | 731 | 0
Payments of debt issuance costs |  | (22) | 0
Repayments of long-term debt and finance leases |  | (10) | (2)
Cash provided by financing activities |  | 2,162 | 414
Effect of exchange rate changes on cash and cash equivalents |  | 3 | 0
Net (Decrease)/Increase in Cash and Cash Equivalents, Funds Deposited by Counterparties and Restricted Cash |  | (1,365) | 3,484
Cash and Cash Equivalents, Funds Deposited by Counterparties and Restricted Cash at Beginning of Period |  | 2,178 | 1,110
Cash and Cash Equivalents, Funds Deposited by Counterparties and Restricted Cash at End of Period |  | $ 813 | $ 4,594
[1] | ncludes $(16) million and $(6) million of equivalent shares purchased in lieu of tax withholdings on equity compensation issuances during the six months ended June 30, 2023 and June 30, 2022, respectively

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- Definition The aggregate (income) expense recorded in earnings to allocate the cost of out-of-market contracts and intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets. As a noncash (income) expense, this element is added back to net income when calculating cash provided by (used in) operations using the indirect method. + References No definition available. + Details
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- Definition The net change during the reporting period in the nuclear decommissioning trust liability, representing amounts collected, through rates or other authorized charges to electric utility customers, which are designated for funding the Company's portioning of the decommissioning of its nuclear facilities. Following the completion of the decommissioning, if surplus funds remain in the decommissioning trusts, any excess will be refunded to the respective rate payers. + References No definition available. + Details
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- Definition Amount of accretion expense, which includes, but is not limited to, accretion expense from asset retirement obligations, environmental remediation obligations, and other contingencies. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 410 -SubTopic 20 -Name Accounting Standards Codification -Section 45 -Paragraph 1 -Publisher FASB -URI https://asc.fasb.org//1943274/2147481879/410-20-45-1 + Details
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- Definition Amount of amortization expense attributable to debt discount (premium) and debt issuance costs. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Topic 470 -SubTopic 20 -Name Accounting Standards Codification -Section 55 -Paragraph 69E -Publisher FASB -URI https://asc.fasb.org//1943274/2147481568/470-20-55-69E Reference 2: http://www.xbrl.org/2003/role/exampleRef -Topic 470 -SubTopic 20 -Name Accounting Standards Codification -Section 55 -Paragraph 69F -Publisher FASB -URI https://asc.fasb.org//1943274/2147481568/470-20-55-69F Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 470 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 1F -Subparagraph (b)(2) -Publisher FASB -URI https://asc.fasb.org//1943274/2147481139/470-20-50-1F Reference 4: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 230 -SubTopic 10 -Name Accounting Standards Codification -Section 45 -Paragraph 28 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org//1943274/2147482740/230-10-45-28 Reference 5: http://www.xbrl.org/2003/role/disclosureRef -Topic 835 -SubTopic 30 -Name Accounting Standards Codification -Section 45 -Paragraph 3 -Publisher FASB -URI https://asc.fasb.org//1943274/2147482925/835-30-45-3 + Details
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- Definition Amount of cash and cash equivalents, and cash and cash equivalents restricted to withdrawal or usage; including, but not limited to, disposal group and discontinued operations. Cash includes, but is not limited to, currency on hand, demand deposits with banks or financial institutions, and other accounts with general characteristics of demand deposits. Cash equivalents include, but are not limited to, short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 230 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 8 -Publisher FASB -URI https://asc.fasb.org//1943274/2147482913/230-10-50-8 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 230 -SubTopic 10 -Name Accounting Standards Codification -Section 45 -Paragraph 24 -Publisher FASB -URI https://asc.fasb.org//1943274/2147482740/230-10-45-24 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 4 -Publisher FASB -URI https://asc.fasb.org//1943274/2147482740/230-10-45-4 + Details
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- Definition Amount of increase (decrease) from effect of exchange rate changes on cash and cash equivalents, and cash and cash equivalents restricted to withdrawal or usage; held in foreign currencies. Excludes amounts for disposal group and discontinued operations. Cash includes, but is not limited to, currency on hand, demand deposits with banks or financial institutions, and other accounts with general characteristics of demand deposits. Cash equivalents include, but are not limited to, short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 830 -SubTopic 230 -Name Accounting Standards Codification -Section 45 -Paragraph 1 -Publisher FASB -URI https://asc.fasb.org//1943274/2147481877/830-230-45-1 + Details
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- Definition Amount of cash inflow (outflow) from investing activities, including discontinued operations. Investing activity cash flows include making and collecting loans and acquiring and disposing of debt or equity instruments and property, plant, and equipment and other productive assets. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 230 -SubTopic 10 -Name Accounting Standards Codification -Section 45 -Paragraph 24 -Publisher FASB -URI https://asc.fasb.org//1943274/2147482740/230-10-45-24 + Details
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