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Condensed Consolidated Statements of Comprehensive (Loss) Income (unaudited) (Parenthetical) $ in Millions | 3 Months Ended
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Mar. 31, 2025 USD ($) | Mar. 31, 2024 USD ($)
Income Statement [Abstract] |  |
Debt securities available for sale | $ 33 | $ 23
Pension and post-retirement obligations | 0 | (1)
Cash flow hedges | $ (2) | $ (23)

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