Benefit Obligations (Tables)

9 Months Ended

Sep. 30, 2016

Compensation and Retirement Disclosure [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,
	2016				2015			2016				2015
	Pension Benefits		Post-retirement Benefits		Pension Benefits		Post-retirement Benefits	Pension Benefits		Post-retirement Benefits		Pension Benefits		Post-retirement Benefits
	(In $ millions)
Service cost	2		—		4		—	6		—		10		1
Interest cost	28		1		34		1	84		2		105		2
Expected return on plan assets	(44	)	—		(53	)	—	(132	)	—		(158	)	—
Recognized actuarial (gain) loss	—		—		—		—	—		—		—		1
Amortization of prior service cost (credit), net	—		(1	)	—		—	—		(3	)	—		—
Special termination benefit	—		—		1		—	3		—		2		—
Total	(14	)	—		(14	)	1	(39	)	(1	)	(41	)	4

Schedule of Company Commitments to Fund Benefit Obligations

Benefit obligation funding is as follows:

	As of September 30, 2016	Total Expected 2016
	(In $ millions)
Cash contributions to defined benefit pension plans	18	23
Benefit payments to nonqualified pension plans	17	22
Benefit payments to other postretirement benefit plans	3	4
Cash contributions to German multiemployer defined benefit pension plans(1)	5	8

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