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v3.25.3

Employee Benefits (Details) - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2025 | Sep. 30, 2024 | Sep. 30, 2025 | Sep. 30, 2024
Retirement Benefits [Abstract] |  |  |  |
Service cost | $ 54 | $ 55 | $ 160 | $ 164
Interest cost | 102 | 94 | 307 | 282
Expected return on plan assets | (147) | (146) | (440) | (438)
Prior service cost (credit) amortization | (1) | (1) | (3) | (3)
Actuarial loss (gain) amortization | 1 | 2 | 3 | 7
Net periodic benefit cost | $ 9 | $ 4 | $ 27 | $ 12

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