Pension and Post-Retirement Benefits - Reconciliation of Funded Status of the Plans and the Amounts Included in the Company's Consolidated Balance Sheets (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
United States
Change in benefit obligations
Beginning obligations	$ 178	$ 170
Service cost	0	10	8
Interest cost	6	7	7
Participant contributions	0	0
Defined Benefit Plan, Plan Amendments	0	0
Defined Benefit Plan, Curtailments	0	16
Plan curtailments	7	0
Benefits and expenses paid	(1)	(6)
Actuarial loss (gain)	(7)	13
Changes in foreign currency exchange rates	0	0
Ending obligations	169	178	170
Changes in plans assets
Beginning fair value	158	138
Actual return on plan assets	31	19
Employer contributions	0	7
Participant contributions	0	0
Plan settlements	(7)	0
Benefits and expenses paid	(1)	(6)
Changes in foreign currency exchange rates	0	0
Ending fair value	181	158	138
Reconciliation of funded status
Funded status	12	(20)
Net Consolidated Balance Sheet liability	12	(20)
International
Change in benefit obligations
Beginning obligations	299	260
Service cost	9	8	9
Interest cost	8	9	9
Participant contributions	3	3
Defined Benefit Plan, Plan Amendments	(11)	0
Defined Benefit Plan, Curtailments	0	0
Plan curtailments	6	0
Benefits and expenses paid	(7)	(5)
Actuarial loss (gain)	(12)	16
Changes in foreign currency exchange rates	6	8
Ending obligations	289	299	260
Changes in plans assets
Beginning fair value	228	198
Actual return on plan assets	20	17
Employer contributions	8	8
Participant contributions	3	3
Plan settlements	(3)	0
Benefits and expenses paid	(7)	(5)
Changes in foreign currency exchange rates	6	7
Ending fair value	255	228	198
Reconciliation of funded status
Funded status	(34)	(71)
Net Consolidated Balance Sheet liability	(34)	(71)
Post-Retirement Medical Benefit Plans
Change in benefit obligations
Beginning obligations	47	52
Service cost	1	1	1
Interest cost	1	2	3
Participant contributions	1	1
Defined Benefit Plan, Plan Amendments	0	0
Defined Benefit Plan, Curtailments	0	0
Plan curtailments	0	0
Benefits and expenses paid	(2)	(1)
Actuarial loss (gain)	(9)	(8)
Changes in foreign currency exchange rates	0	0
Ending obligations	39	47	52
Changes in plans assets
Beginning fair value	0	0
Actual return on plan assets	0	0
Employer contributions	1	0
Participant contributions	1	1
Plan settlements	0	0
Benefits and expenses paid	(2)	(1)
Changes in foreign currency exchange rates	0	0
Ending fair value	0	0	0
Reconciliation of funded status
Funded status	(39)	(47)
Net Consolidated Balance Sheet liability	$ (39)	$ (47)