Variable interest entities - Non-consolidated VIEs (Details) - USD ($) $ in Millions	Jun. 30, 2026	Dec. 31, 2025
Variable Interest Entity [Line Items]
Other assets	$ 525,019	$ 472,300
Other liabilities	479,671	427,492
Variable Interest Entity, Not Primary Beneficiary
Variable Interest Entity [Line Items]
Other assets	3,139	3,258
Other liabilities	880	946
Maximum loss exposure	$ 4,020	$ 4,205

Amount of asset recognized for present right to economic benefit.

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+ Details

- Definition

Amount of liability recognized for present obligation requiring transfer or otherwise providing economic benefit to others.

+ References

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