Benefit Obligations (Tables)

3 Months Ended

Mar. 31, 2025

Retirement Benefits [Abstract]

Schedule of Net Periodic Benefit Costs Recognized

The components of net periodic benefit cost are as follows:

	Three Months Ended March 31,
	2025		2024
	Pension Benefits	Post-retirement Benefits	Pension Benefits	Post-retirement Benefits
	(In $ millions)
Service cost	4	—	3	—
Interest cost	29	1	31	1
Expected return on plan assets	(32)	—	(34)	—
Total	1	1	—	1

Schedule of Company Commitments to Fund Benefit Obligations

Benefit obligation funding is as follows:

	As of March 31, 2025	Total Expected 2025
	(In $ millions)
Cash contributions to defined benefit pension plans	8	30
Benefit payments to nonqualified pension plans	4	18
Benefit payments to other postretirement benefit plans	2	3

Schedule of Defined Benefit Plans Disclosures

Pension and postretirement benefit plan balances recognized in the unaudited consolidated balance sheets consist of the following:

	As of March 31, 2025		As of December 31, 2024
	Pension Benefits	Post-retirement Benefits	Pension Benefits	Post-retirement Benefits
	(In $ millions)
Noncurrent Other assets	142	—	135	—
Current Other liabilities	(22)	(4)	(22)	(3)
Benefit obligations	(359)	(33)	(358)	(31)
Net amount recognized	(239)	(37)	(245)	(34)