Leasing Activity, Operating Lease Right-of-Use (ROU) Assets and Lease Liabilities (Details) - USD ($) $ in Millions |
Dec. 31, 2025 |
Dec. 31, 2024 |
|---|---|---|
| Leases [Abstract] | ||
| ROU assets | $ 3,641 | $ 3,850 |
| Lease liabilities | $ 4,162 | $ 4,423 |
| Operating lease, right-of-use asset, statement of financial position [Extensible Enumeration] | Other assets | Other assets |
| Operating lease, liability, statement of financial position [Extensible Enumeration] | Accounts Payable and Accrued Liabilities | Accounts Payable and Accrued Liabilities |