Benefit Obligations

3 Months Ended

Mar. 31, 2022

Retirement Benefits [Abstract]

Benefit Obligations

Benefit Obligations

The components of net periodic benefit cost are as follows:

	Three Months Ended March 31,
	2022		2021
	Pension Benefits	Post-retirement Benefits	Pension Benefits	Post-retirement Benefits
	(In $ millions)
Service cost	3	—	4	—
Interest cost	17	—	13	—
Expected return on plan assets	(41)	—	(51)	—
Total	(21)	—	(34)	—

Benefit obligation funding is as follows:

	As of March 31, 2022	Total Expected 2022
	(In $ millions)
Cash contributions to defined benefit pension plans	6	24
Benefit payments to nonqualified pension plans	5	19
Benefit payments to other postretirement benefit plans	1	4

The Company's estimates of its U.S. defined benefit pension plan contributions reflect the provisions of the Pension Protection Act of 2006.