Benefit Obligations (Tables)

3 Months Ended

Mar. 31, 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 March 31,
	2016				2015
	Pension Benefits		Post-retirement Benefits		Pension Benefits		Post-retirement Benefits
	(In $ millions)
Service cost	2		—		3		—
Interest cost	28		1		35		1
Expected return on plan assets	(44	)	—		(52	)	—
Amortization of prior service cost (credit), net	—		(1	)	—		—
Special termination benefit	1		—		1		—
Total	(13	)	—		(13	)	1

Schedule of Company Commitments to Fund Benefit Obligations

Benefit obligation funding is as follows:

	As of March 31, 2016	Total Expected 2016
	(In $ millions)
Cash contributions to defined benefit pension plans	7	23
Benefit payments to nonqualified pension plans	6	22
Benefit payments to other postretirement benefit plans	1	4
Cash contributions to German multiemployer defined benefit pension plans(1)	2	8

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