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Supplemental Financial Information
 3 Months Ended
Mar. 31, 2025
Supplemental Financial Information [Abstract]  
Supplemental Financial Information Supplemental Financial Information
Supplemental Statement of Operations and Comprehensive Income Information
The following tables provide additional information about items recorded in the Consolidated Statements of Operations and Comprehensive Income.
Operating revenues
Three Months Ended March 31,
20252024
Variable lease income$52 $52 
Taxes other than income taxes
Three Months Ended March 31,
20252024
Gross receipts(a)
$38 $33 
Property72 66 
Payroll44 38 
Other
6 2 
Total taxes other than income taxes
$160 $139 
__________
(a)Represent gross receipts taxes related to our retail operations. The offsetting collection of gross receipts taxes from customers is recorded in Operating revenues in the Consolidated Statements of Operations and Comprehensive Income.

Other, net
Three Months Ended March 31,
20252024
Decommissioning-related activities:
Net realized income on NDT funds(a)
Regulatory Agreement Units$243 $166 
Non-Regulatory Agreement Units94 83 
Net unrealized gains (losses) on NDT funds
Regulatory Agreement Units(117)225 
Non-Regulatory Agreement Units(23)134 
Regulatory offset to NDT fund-related activities(b)
(103)(312)
Total Decommissioning-related activities94 296 
Net realized and unrealized gains (losses) from equity investments(c)
(268)47 
Other
20 19 
Total Other, net$(154)$362 
__________
(a)Realized income includes interest, dividends and realized gains and losses on sales of NDT fund investments.
(b)Includes the elimination of decommissioning-related activities and the elimination of income taxes related to all NDT fund activity for the Regulatory Agreement Units.
(c)Includes unrealized gains (losses) resulting from an equity investment in a publicly traded company. We record the fair value of this investment in Investments on the Consolidated Balance Sheets based on quoted market price of the stock.
Supplemental Cash Flow Information
The following tables provide additional information about items recorded within our Consolidated Statements of Cash Flows.
Depreciation, amortization, and accretion
Three Months Ended March 31,
20252024
PP&E(a)
$243 $300 
Amortization of intangible assets, net(a)
5 6 
Amortization of energy contract assets and liabilities(b)
2 5 
Nuclear fuel(c)
232 216 
ARO accretion(d)
158 167 
Total depreciation, amortization, and accretion$640 $694 
__________
(a)Included in Depreciation and amortization expense in the Consolidated Statements of Operations and Comprehensive Income.
(b)Included in Operating revenues or Purchased power and fuel expense in the Consolidated Statements of Operations and Comprehensive Income.
(c)Included in Purchased power and fuel expense in the Consolidated Statements of Operations and Comprehensive Income.
(d)Included in Operating and maintenance expense in the Consolidated Statements of Operations and Comprehensive Income.
Other non-cash operating activities
CEG ParentConstellation
Three Months Ended March 31,Three Months Ended March 31,
2025202420252024
Other decommissioning-related activity(a)
$(74)$(161)$(74)$(161)
Energy-related options(b)
(10)27 (10)27 
Pension and non-pension postretirement benefit costs
38 28 38 28 
Other(c)
93 65 70 44 
Total other non-cash operating activities
$47 $(41)$24 $(62)
__________
(a)Includes the elimination of decommissioning-related activities for the Regulatory Agreement Units, including the elimination of operating revenues, ARO accretion, ARC amortization, investment income, and income taxes related to all NDT fund activity for these units.
(b)Includes option premiums reclassified to realized at the settlement of the underlying contracts and recorded to results of operations.
(c)Includes items that are not individually material.
The following table provides a reconciliation of cash, restricted cash, and cash equivalents reported within our Consolidated Balance Sheets that sum to the total of the same amounts in the Consolidated Statements of Cash Flows.
March 31, 2025CEG ParentConstellation
Cash and cash equivalents$1,846 $1,836 
Restricted cash and cash equivalents96 86 
Total cash, restricted cash, and cash equivalents$1,942 $1,922 
December 31, 2024
Cash and cash equivalents$3,022 $3,018 
Restricted cash and cash equivalents107 97 
Total cash, restricted cash, and cash equivalents$3,129 $3,115 
March 31, 2024
Cash and cash equivalents$562 $557 
Restricted cash and cash equivalents83 67 
Total cash, restricted cash, and cash equivalents$645 $624 
For additional information on restricted cash, see Note 1 — Basis of Presentation of our 2024 Form 10-K.
Supplemental Balance Sheet Information
The following table provides additional information about material items recorded in the Consolidated Balance Sheets.
Accounts payable and accrued expenses
March 31, 2025CEG ParentConstellation
Accounts payable
$2,498 $2,466 
Compensation-related accruals(a)
404 273 
Taxes accrued
287 278 
December 31, 2024
Accounts payable
$2,369 $2,348 
Compensation-related accruals(a)
907 689 
Taxes accrued
232 223 
__________
(a)Primarily includes accrued payroll, bonuses and other incentives, vacation, and benefits.