Benefit Obligations (Tables)

3 Months Ended

Mar. 31, 2021

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,
	2021		2020
	Pension Benefits	Post-retirement Benefits	Pension Benefits	Post-retirement Benefits
	(In $ millions)
Service cost	4	—	3	—
Interest cost	13	—	21	1
Expected return on plan assets	(51)	—	(50)	—
Total	(34)	—	(26)	1

Schedule of Company Commitments to Fund Benefit Obligations

Benefit obligation funding is as follows:

	As of March 31, 2021	Total Expected 2021
	(In $ millions)
Cash contributions to defined benefit pension plans	6	23
Benefit payments to nonqualified pension plans	5	20
Benefit payments to other postretirement benefit plans	1	4
Cash contributions to German multiemployer defined benefit pension plans(1)	2	9

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(1)The Company makes contributions based on specified percentages of employee contributions.