Revenues, expenses, and operating earnings by segment and the reconciliation to earnings before taxes for the periods ended September 30, 2025 and 2024 consists of the following: | | | | | | | | | | | | | | | | | | | | | | | | | Three Months Ended September 30, | | Nine Months Ended September 30, | | (Dollars in millions) | 2025 | | 2024 | | 2025 | | 2024 | | Revenues | | | | | | | | | ASC | $ | 580 | | | $ | 533 | | | $ | 1,633 | | | $ | 1,458 | | | IMS | 383 | | | 285 | | | 964 | | | 812 | | | Corporate & Eliminations | (3) | | | (6) | | | (9) | | | (17) | | | Total revenues | $ | 960 | | | $ | 812 | | | $ | 2,588 | | | $ | 2,253 | | | | | | | | | | | Cost of revenues | | | | | | | | | ASC | $ | 437 | | | $ | 411 | | | $ | 1,237 | | | $ | 1,111 | | | IMS | 304 | | | 228 | | | 760 | | | 658 | | | Corporate & Eliminations | (3) | | | (6) | | | (9) | | | (17) | | | Total cost of revenues | $ | 738 | | | $ | 633 | | | $ | 1,988 | | | $ | 1,752 | | | | | | | | | | | General and administrative | | | | | | | | | ASC | $ | 63 | | | $ | 52 | | | $ | 196 | | | $ | 173 | | | IMS | 24 | | | 22 | | | 71 | | | 64 | | | Corporate & Eliminations | — | | | 1 | | | — | | | 5 | | | Total general and administrative | $ | 87 | | | $ | 75 | | | $ | 267 | | | $ | 242 | | | | | | | | | | | Company-funded research and development | | | | | | | | | ASC | $ | 29 | | | $ | 19 | | | $ | 76 | | | $ | 51 | | | IMS | 7 | | | 4 | | | 18 | | | 13 | | | Corporate & Eliminations | — | | | — | | | — | | | — | | | Total company-funded research and development | $ | 36 | | | $ | 23 | | | $ | 94 | | | $ | 64 | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Amortization of intangibles | | | | | | | | | ASC | $ | 5 | | | $ | 6 | | | $ | 16 | | | $ | 17 | | | IMS | — | | | — | | | — | | | — | | | Corporate & Eliminations | — | | | — | | | — | | | — | | | Total amortization of intangibles | $ | 5 | | | $ | 6 | | | $ | 16 | | | $ | 17 | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Other segment items | | | | | | | | | ASC | $ | 1 | | | $ | — | | | $ | 1 | | | $ | 5 | | | IMS | — | | | — | | | — | | | — | | | Corporate & Eliminations | — | | | — | | | — | | | — | | Total other segment items(1) | $ | 1 | | | $ | — | | | $ | 1 | | | $ | 5 | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Operating earnings | | | | | | | | | ASC | $ | 45 | | | $ | 45 | | | $ | 107 | | | $ | 101 | | | IMS | 48 | | | 31 | | | 115 | | | 77 | | | Corporate & Eliminations | — | | | (1) | | | — | | | (5) | | | Total operating earnings | $ | 93 | | | $ | 75 | | | $ | 222 | | | $ | 173 | | | Interest expense, net | (4) | | | (5) | | | (7) | | | (17) | | | Other, net | (2) | | | (1) | | | (3) | | | (3) | | | Earnings before taxes | $ | 87 | | | $ | 69 | | | $ | 212 | | | $ | 153 | |
________________(1)Includes ASC restructuring costs for the periods presented. Total intersegment revenues by segment for the periods ended September 30, 2025 and 2024 consists of the following: | | | | | | | | | | | | | | | | | | | | | | | | | Three Months Ended September 30, | | Nine Months Ended September 30, | | (Dollars in millions) | 2025 | | 2024 | | 2025 | | 2024 | | ASC | $ | 3 | | | $ | 6 | | | $ | 9 | | | $ | 17 | | | IMS | — | | | — | | | — | | | — | | | Total intersegment revenues | $ | 3 | | | $ | 6 | | | $ | 9 | | | $ | 17 | |
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