Guarantees and product warranty (Details) - USD ($) $ in Millions	Dec. 31, 2024	Dec. 31, 2023
Guarantor Obligations
Guarantees, maximum potential amount of future payments	$ 368	$ 353
Segment assets	87,764	87,476
SPC liabilities in consolidated statement	68,270	67,973
Unused commitments and lines of credit for customers	843
Variable Interest Entity, Primary Beneficiary
Guarantor Obligations
Segment assets	1,140	1,350
SPC liabilities in consolidated statement	$ 1,140	$ 1,350

Amount of asset recognized for present right to economic benefit.

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- Definition

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

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+ Details