Benefit Obligations (Tables)

3 Months Ended

Mar. 31, 2013

Compensation and Retirement Disclosure [Abstract]

Schedule of Net Periodic Benefit Costs Recognized

The components of net periodic benefit costs are as follows:

	Pension Benefits				Postretirement Benefits
	Three Months Ended March 31,
	2013		2012		2013	2012
			As Adjusted (Note 1)			As Adjusted (Note 1)
	(In $ millions)
Service cost	9		7		1	—
Interest cost	39		43		2	3
Expected return on plan assets	(56	)	(51	)	—	—
Recognized actuarial (gain) loss	—		—		—	—
Amortization of prior service cost (credit)	—		1		—	—
Curtailment (gain) loss	—		—		—	—
Total	(8	)	—		3	3

Schedule of Company Commitments to Fund Benefit Obligations

Commitments to fund benefit obligations during 2013 are as follows:

	As of March 31, 2013	Expected for 2013
	(In $ millions)
Cash contributions to defined benefit pension plans	9	30
Benefit payments to nonqualified pension plans	6	22
Benefit payments to other postretirement benefit plans	4	24