Debt - Schedule of Long-term Debt (Details) - USD ($) $ in Millions |
Mar. 31, 2026 |
Dec. 31, 2025 |
|---|---|---|
| Debt Instrument [Line Items] | ||
| Long-term debt, due within one year, net of original issue discount | $ 2,439 | |
| Long-term debt, due within one year | $ 2,659 | |
| Long-term debt, due after one year | 14,910 | 14,411 |
| Total long-term debt | 17,349 | 17,070 |
| Unsecured | ||
| Debt Instrument [Line Items] | ||
| Long-term debt, due within one year, net of original issue discount | (20) | |
| Long-term debt, due within one year | 0 | |
| Long-term debt, due after one year | 9,939 | 10,012 |
| Total long-term debt | 9,919 | 10,012 |
| Secured debt | ||
| Debt Instrument [Line Items] | ||
| Long-term debt, due within one year | 2,459 | 2,659 |
| Long-term debt, due after one year | 4,971 | 4,399 |
| Total long-term debt | 7,430 | 7,058 |
| Federal Home Loan Bank Advances | Federal Home Loan Bank of Pittsburgh | ||
| Debt Instrument [Line Items] | ||
| Total long-term debt | $ 4,200 | $ 4,200 |
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- Definition Long-Term Debt, Current Maturities, Net Of Original Issue Discount No definition available.
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount, after deduction of unamortized premium (discount) and debt issuance cost, of long-term debt. Excludes lease obligation. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Amount, after deduction of unamortized premium (discount) and debt issuance cost, of long-term debt classified as current. Excludes lease obligation. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount, after deduction of unamortized premium (discount) and debt issuance cost, of long-term debt classified as noncurrent. Excludes lease obligation. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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