Pension, Postretirement Health Care and Life Insurance Benefit Plans (Components of Net Periodic Benefit Cost) (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2014		Dec. 31, 2013		Dec. 31, 2012
Pension Benefits [Member]
Components of net defined benefit pension plan and postretirement benefit plan expense [Abstract]
Service cost	$ 6	[1]	$ 5	[1]	$ 5	[1]
Other Postretirement Benefits [Member]
Components of net defined benefit pension plan and postretirement benefit plan expense [Abstract]
Service cost	1	[1]	3	[1]	4	[1]
Recognized actuarial gain due to curtailments			(5)
U.S. Plans [Member]
Components of net defined benefit pension plan and postretirement benefit plan expense [Abstract]
Service cost	(6)	[2]	(5)	[2]
Interest cost	(53)		(51)
U.S. Plans [Member] | Pension Benefits [Member]
Components of net defined benefit pension plan and postretirement benefit plan expense [Abstract]
Interest cost	53		51		53
Expected return on plan assets	(73)		(78)		(72)
Recognized net actuarial loss (gain)	15		24		26
Net periodic benefit expense (recovery)	1		2		12
U.S. Plans [Member] | Other Postretirement Benefits [Member]
Components of net defined benefit pension plan and postretirement benefit plan expense [Abstract]
Interest cost	4		5		7
Expected return on plan assets	(3)		(3)		(3)
Amortization of prior service cost	(2)		(1)		(1)
Recognized net actuarial loss (gain)	(1)		(1)		1
Net periodic benefit expense (recovery)	(1)		(2)		8
Non-U.S. Plans [Member]
Components of net defined benefit pension plan and postretirement benefit plan expense [Abstract]
Interest cost	(16)		(16)
Non-U.S. Plans [Member] | Pension Benefits [Member]
Components of net defined benefit pension plan and postretirement benefit plan expense [Abstract]
Interest cost	16		16		15
Expected return on plan assets	(22)		(19)		(17)
Recognized net actuarial loss (gain)	2		2		1
Net periodic benefit expense (recovery)	$ (4)		$ (1)		$ (1)

[1] Amounts for our pension plans represent general and administrative expenses.

[2] Amounts for our U.S. pension plans represent general and administrative expenses.