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v3.24.3

Segment Information (Tables) | 9 Months Ended
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Sep. 30, 2024
Segment Reporting [Abstract] |
Revenue from External Customers by Geographic Areas | The following tables disaggregate the revenue recognized from contracts with customers into categories that depict how the nature, amount, timing, and uncertainty of revenue and cash flows are affected by economic factors. The disaggregation of revenues reflects our two primary products of power sales and natural gas sales, with further disaggregation of power sales provided by geographic region. The following tables also show the reconciliation of reportable segment revenues and RNF to our total revenues and RNF for the three and nine months ended September 30, 2024 and 2023.
| Three Months Ended September 30, 2024
| Revenues from external customers |  |  |  |
| Contracts with customers |  | Other(a) |  | Total |  | Intersegment Revenues |  | Total Revenues
Mid-Atlantic | $ | 1,504 |  |  | $ | 97 |  |  | $ | 1,601 |  |  | $ | 2 |  |  | $ | 1,603 |
Midwest | 958 |  |  | 316 |  |  | 1,274 |  |  | 1 |  |  | 1,275 |
New York | 472 |  |  | 39 |  |  | 511 |  |  | (4) |  |  | 507 |
ERCOT | 307 |  |  | 215 |  |  | 522 |  |  | 1 |  |  | 523 |
Other Power Regions | 1,213 |  |  | 230 |  |  | 1,443 |  |  | — |  |  | 1,443 |
Total Reportable Segment Power Revenues | 4,454 |  |  | 897 |  |  | 5,351 |  |  | — |  |  | 5,351 |
Total Natural Gas Revenues | 184 |  |  | 349 |  |  | 533 |  |  | — |  |  | 533 |
Total Other Revenues(b) | 135 |  |  | 531 |  |  | 666 |  |  | — |  |  | 666 |
Total Consolidated Operating Revenues | $ | 4,773 |  |  | $ | 1,777 |  |  | $ | 6,550 |  |  | $ | — |  |  | $ | 6,550 |
| Three Months Ended September 30, 2023
| Revenues from external customers |  |  |  |
| Contracts with customers |  | Other(a) |  | Total |  | Intersegment Revenues |  | Total Revenues
Mid-Atlantic | $ | 1,493 |  |  | $ | (78) |  |  | $ | 1,415 |  |  | $ | (4) |  |  | $ | 1,411 |
Midwest | 1,160 |  |  | (43) |  |  | 1,117 |  |  | — |  |  | 1,117 |
New York | 522 |  |  | (14) |  |  | 508 |  |  | 4 |  |  | 512 |
ERCOT | 489 |  |  | 69 |  |  | 558 |  |  | 1 |  |  | 559 |
Other Power Regions | 1,284 |  |  | 309 |  |  | 1,593 |  |  | (1) |  |  | 1,592 |
Total Reportable Segment Power Revenues | 4,948 |  |  | 243 |  |  | 5,191 |  |  | — |  |  | 5,191 |
Total Natural Gas Revenues | 220 |  |  | 385 |  |  | 605 |  |  | — |  |  | 605 |
Total Other Revenues(b) | 145 |  |  | 170 |  |  | 315 |  |  | — |  |  | 315 |
Total Consolidated Operating Revenues | $ | 5,313 |  |  | $ | 798 |  |  | $ | 6,111 |  |  | $ | — |  |  | $ | 6,111 |
| Nine Months Ended September 30, 2024
| Revenues from external customers |  |  |  |
| Contracts with customers |  | Other(a) |  | Total |  | Intersegment Revenues |  | Total Revenues
Mid-Atlantic | $ | 4,154 |  |  | $ | (10) |  |  | $ | 4,144 |  |  | $ | 4 |  |  | $ | 4,148 |
Midwest | 2,951 |  |  | 584 |  |  | 3,535 |  |  | 2 |  |  | 3,537 |
New York | 1,428 |  |  | 102 |  |  | 1,530 |  |  | 4 |  |  | 1,534 |
ERCOT | 819 |  |  | 378 |  |  | 1,197 |  |  | 4 |  |  | 1,201 |
Other Power Regions | 3,673 |  |  | 593 |  |  | 4,266 |  |  | (14) |  |  | 4,252 |
Total Reportable Segment Power Revenues | 13,025 |  |  | 1,647 |  |  | 14,672 |  |  | — |  |  | 14,672 |
Total Natural Gas Revenues | 1,024 |  |  | 1,252 |  |  | 2,276 |  |  | — |  |  | 2,276 |
Total Other Revenues(b) | 389 |  |  | 849 |  |  | 1,238 |  |  | — |  |  | 1,238 |
Total Consolidated Operating Revenues | $ | 14,438 |  |  | $ | 3,748 |  |  | $ | 18,186 |  |  | $ | — |  |  | $ | 18,186 |
| Nine Months Ended September 30, 2023
| Revenues from external customers |  |  |  |
| Contracts with customers |  | Other(a) |  | Total |  | Intersegment Revenues |  | Total Revenues
Mid-Atlantic | $ | 4,140 |  |  | $ | (241) |  |  | $ | 3,899 |  |  | $ | (45) |  |  | $ | 3,854 |
Midwest | 3,707 |  |  | (231) |  |  | 3,476 |  |  | 3 |  |  | 3,479 |
New York | 1,424 |  |  | 53 |  |  | 1,477 |  |  | 41 |  |  | 1,518 |
ERCOT | 979 |  |  | 73 |  |  | 1,052 |  |  | 4 |  |  | 1,056 |
Other Power Regions | 3,766 |  |  | 732 |  |  | 4,498 |  |  | (3) |  |  | 4,495 |
Total Reportable Segment Power Revenues | 14,016 |  |  | 386 |  |  | 14,402 |  |  | — |  |  | 14,402 |
Total Natural Gas Revenues | 1,394 |  |  | 1,352 |  |  | 2,746 |  |  | — |  |  | 2,746 |
Total Other Revenues(b) | 435 |  |  | 1,539 |  |  | 1,974 |  |  | — |  |  | 1,974 |
Total Consolidated Operating Revenues | $ | 15,845 |  |  | $ | 3,277 |  |  | $ | 19,122 |  |  | $ | — |  |  | $ | 19,122 |
__________ (a)Includes revenues from nuclear PTCs beginning in 2024 as well as derivatives and leases in all periods presented. (b)Represents activities not allocated to a region. See text above for a description of included activities. Includes unrealized mark-to-market gains of $516 million and $177 million for the three months ended September 30, 2024 and 2023, respectively, and unrealized mark-to-market gains of $769 million and $1,317 million for the nine months ended September 30, 2024 and 2023, respectively. See Note 10 — Derivative Financial Instruments for additional information on mark-to-market derivatives.
| Three Months Ended September 30, 2024 |  | Three Months Ended September 30, 2023
| RNF from external customers |  | Intersegment RNF |  | Total RNF |  | RNF from external customers |  | Intersegment RNF |  | Total RNF
Mid-Atlantic | $ | 806 |  |  | $ | 3 |  |  | $ | 809 |  |  | $ | 747 |  |  | $ | (3) |  |  | $ | 744 |
Midwest | 881 |  |  | 3 |  |  | 884 |  |  | 776 |  |  | 2 |  |  | 778 |
New York | 361 |  |  | (4) |  |  | 357 |  |  | 311 |  |  | 6 |  |  | 317 |
ERCOT | 404 |  |  | (1) |  |  | 403 |  |  | 211 |  |  | (4) |  |  | 207 |
Other Power Regions | 441 |  |  | (8) |  |  | 433 |  |  | 434 |  |  | (3) |  |  | 431 |
Total RNF for Reportable Segments | 2,893 |  |  | (7) |  |  | 2,886 |  |  | 2,479 |  |  | (2) |  |  | 2,477 |
Other(a) | 538 |  |  | 7 |  |  | 545 |  |  | 265 |  |  | 2 |  |  | 267 |
Total RNF | $ | 3,431 |  |  | $ | — |  |  | $ | 3,431 |  |  | $ | 2,744 |  |  | $ | — |  |  | $ | 2,744 |
| Nine Months Ended September 30, 2024 |  | Nine Months Ended September 30, 2023
| RNF from external customers |  | Intersegment RNF |  | Total RNF |  | RNF from external customers |  | Intersegment RNF |  | Total RNF
Mid-Atlantic | $ | 2,235 |  |  | $ | 7 |  |  | $ | 2,242 |  |  | $ | 2,202 |  |  | $ | (44) |  |  | $ | 2,158 |
Midwest | 2,345 |  |  | 7 |  |  | 2,352 |  |  | 2,439 |  |  | 2 |  |  | 2,441 |
New York | 1,070 |  |  | 4 |  |  | 1,074 |  |  | 851 |  |  | 46 |  |  | 897 |
ERCOT | 836 |  |  | (10) |  |  | 826 |  |  | 429 |  |  | (6) |  |  | 423 |
Other Power Regions | 1,126 |  |  | (31) |  |  | 1,095 |  |  | 909 |  |  | (8) |  |  | 901 |
Total RNF for Reportable Segments | 7,612 |  |  | (23) |  |  | 7,589 |  |  | 6,830 |  |  | (10) |  |  | 6,820 |
Other(a) | 1,746 |  |  | 23 |  |  | 1,769 |  |  | 309 |  |  | 10 |  |  | 319 |
Total RNF | $ | 9,358 |  |  | $ | — |  |  | $ | 9,358 |  |  | $ | 7,139 |  |  | $ | — |  |  | $ | 7,139 |
__________ (a)Other represents activities not allocated to a region. See text above for a description of included activities. See Note 10 — Derivative Financial Instruments for additional information on mark-to-market derivatives.

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- Definition Tabular disclosure of revenue from external customers by geographic areas attributed to the entity's country of domicile and to foreign countries from which the entity derives revenue. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 280 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 41 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482810/280-10-50-41 + Details
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