Benefit Obligations (Tables)

9 Months Ended

Sep. 30, 2019

Retirement Benefits [Abstract]

Schedule of Net Periodic Benefit Costs Recognized

The components of net periodic benefit cost are as follows:

	Three Months Ended September 30,						Nine Months Ended September 30,
	2019			2018			2019			2018
	Pension Benefits		Post-retirement Benefits	Pension Benefits		Post-retirement Benefits	Pension Benefits		Post-retirement Benefits	Pension Benefits		Post-retirement Benefits
	(In $ millions)
Service cost	3		—	2		—	7		—	7		—
Interest cost	28		1	26		1	86		2	78		2
Expected return on plan assets	(46	)	—	(52	)	—	(139	)	—	(157	)	—
Special termination benefit	—		—	—		—	—		—	1		—
Total	(15	)	1	(24	)	1	(46	)	2	(71	)	2

Schedule of Company Commitments to Fund Benefit Obligations

Benefit obligation funding is as follows:

	As of September 30, 2019	Total Expected 2019
	(In $ millions)
Cash contributions to defined benefit pension plans	16	22
Benefit payments to nonqualified pension plans	16	21
Benefit payments to other postretirement benefit plans	3	5
Cash contributions to German multiemployer defined benefit pension plans(1)	6	9

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The Company makes contributions based on specified percentages of employee contributions.