Intangible assets, net (Tables)

12 Months Ended

Dec. 31, 2023

Intangible Assets, Net (Excluding Goodwill) [Abstract]

Schedule of Finite-Lived Intangible Assets

Intangible assets, net at December 31 were:

	2023				2022
in $ millions	Marketing-related	Customer-related (i)	Contract-based	Total	Marketing-related (ii)	Customer-related (i) & (ii)	Contract-based (ii)	Total
At December 31
Gross amount	310	1,260	101	1,671	286	1,202	92	1,580
Accumulated amortization	(94)	(482)	(54)	(630)	(78)	(369)	(45)	(492)
Total intangible assets, net	216	778	47	1,041	208	833	47	1,088

(i)     The customer-related intangible assets relate predominantly to non-contractual customer relationships.

(ii) Marketing-related, customer-related and contract-based intangible assets of $174 million, $594 million and $41 million respectively arose on the acquisition of Barrette in July 2022. These primarily related to brand names, patents and non-contractual customer relationships.

Schedule of Future Amortization Expense

The estimated amortization for intangible assets for the five years subsequent to December 31, 2023 and thereafter is as follows:

in $ millions	2024	2025	2026	2027	2028	2029 and thereafter
Amortization	127	112	74	61	52	615