Pension and Post-Retirement Benefits - Post Retirement Benefits Recognized in Other Comprehensive Income) (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Amounts recognized as a component of net periodic benefit cost
Amortization or settlement recognition of net loss	$ (4)	$ (6)	$ (4)
United States
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Amounts Recognized in Other Comprehensive Income (Loss), Net Prior Service Cost (Credit), before Tax	0	0	0
Changes in plan assets and benefit obligations recognized in other comprehensive income
Net loss (gain) arising during the year	27	11	(15)
Effect of changes in foreign currency exchange rates on amounts included in AOCI	0	0	0
Amounts recognized as a component of net periodic benefit cost
Amortization or curtailment recognition of prior service credit	0	0	0
Amortization or settlement recognition of net loss	(1)	(5)	(4)
Total	(28)	(16)	11
Total recognized in net periodic benefit cost and other comprehensive loss	(31)	(5)	20
Estimated amounts that will be amortized from accumulated other comprehensive income over the next fiscal year
Prior service (cost) credit	0	0	0
Net loss	0	(1)	(5)
Total estimated amortization	0	(1)	(5)
International
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Amounts Recognized in Other Comprehensive Income (Loss), Net Prior Service Cost (Credit), before Tax	(11)	0	0
Changes in plan assets and benefit obligations recognized in other comprehensive income
Net loss (gain) arising during the year	21	(9)	(19)
Effect of changes in foreign currency exchange rates on amounts included in AOCI	0	2	(1)
Amounts recognized as a component of net periodic benefit cost
Amortization or curtailment recognition of prior service credit	0	0	0
Amortization or settlement recognition of net loss	(6)	(4)	(2)
Total	(38)	7	16
Total recognized in net periodic benefit cost and other comprehensive loss	(28)	18	26
Estimated amounts that will be amortized from accumulated other comprehensive income over the next fiscal year
Prior service (cost) credit	1	0	0
Net loss	(1)	(4)	(4)
Total estimated amortization	0	(4)	(4)
Post-Retirement Medical Benefit Plans
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Amounts Recognized in Other Comprehensive Income (Loss), Net Prior Service Cost (Credit), before Tax	0	0	0
Changes in plan assets and benefit obligations recognized in other comprehensive income
Net loss (gain) arising during the year	8	8	(2)
Effect of changes in foreign currency exchange rates on amounts included in AOCI	0	0	0
Amounts recognized as a component of net periodic benefit cost
Amortization or curtailment recognition of prior service credit	1	1	1
Amortization or settlement recognition of net loss	0	0	0
Total	(7)	(7)	3
Total recognized in net periodic benefit cost and other comprehensive loss	(6)	(5)	6
Estimated amounts that will be amortized from accumulated other comprehensive income over the next fiscal year
Prior service (cost) credit	1	1	1
Net loss	1	0	0
Total estimated amortization	$ 2	$ 1	$ 1