Leases (Schedule of Right-of-use Assets and Lease Liabilities) (Details) - USD ($) $ in Millions |
Mar. 31, 2026 |
Dec. 31, 2025 |
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|---|---|---|---|---|---|---|
| Leases [Abstract] | ||||||
| Right-of-use assets, finance lease | $ 32 | $ 23 | ||||
| Finance lease liabilities: | ||||||
| Current lease liabilities, finance lease | [1] | 8 | 7 | |||
| Long-term lease liabilities, finance lease | 21 | 16 | ||||
| Total lease liabilities, finance lease | [2] | 29 | 23 | |||
| Right-of-use assets, operating lease | 280 | 276 | ||||
| Operating lease liabilities: | ||||||
| Current lease liabilities, operating lease | [1] | 95 | 95 | |||
| Long-term lease liabilities, operating lease | 185 | 181 | ||||
| Total lease liabilities, operating lease | [2] | 280 | 276 | |||
| Right-of-use assets | 312 | 299 | ||||
| Lease liabilities: | ||||||
| Current lease liabilities | [1] | 103 | 102 | |||
| Long-term lease liabilities | 206 | 197 | ||||
| Total lease liabilities | [2] | $ 309 | $ 299 | |||
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