Benefit Obligations (Tables)

9 Months Ended

Sep. 30, 2012

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			Pension Benefits				Postretirement Benefits
	Three Months Ended September 30,							Nine Months Ended September 30,
	2012		2011		2012	2011		2012		2011		2012		2011
	(In $ millions)							(In $ millions)
Service cost	7		7		—	—		21		21		1		1
Interest cost	42		45		3	3		127		136		9		9
Expected return on plan assets	(51	)	(50	)	—	—		(154	)	(151	)	—		—
Recognized actuarial (gain) loss	14		7		—	(1	)	43		22		(1	)	(2	)
Prior service credit	—		1		—	—		1		1		—		—
Curtailment (gain) loss	—		—		—	—		—		(1	)	—		—
Total	12		10		3	2		38		28		9		8

Schedule of Company Commitments to Fund Benefit Obligations

Commitments to fund benefit obligations during 2012 are as follows:

	As of
	September 30, 2012	Expected for 2012
	(In $ millions)
Cash contributions to defined benefit pension plans(1)	119	144
Benefit payments to nonqualified pension plans	17	21
Benefit payments to other postretirement benefit plans	18	25

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⁽¹⁾  Includes $15 million of discretionary contributions as of September 30, 2012 and $15 million of expected discretionary contributions.