Pension and Post-Retirement Benefits (Tables)

12 Months Ended

Dec. 31, 2012

Defined Benefit Pension Plans and Defined Benefit Postretirement Plans Disclosure [Abstract]

Schedule of reconciliation of funded status of the plans and the amounts included In the Company' s consolidated balance sheets

	Pension Plans												Post-Retirement Medical  Benefit Plans
	United States						International
	2012			2011			2012			2011			2012			2011
Reconciliation of funded status of the plans and the amounts included in the Company's Consolidated Balance Sheets at December 31:
Change in benefit obligations
Beginning obligations	$	170		$	155		$	260		$	244		$	52		$	49
Service cost	10			8			8			9			1			1
Interest cost	7			7			9			9			2			3
Participant contributions	—			—			3			3			1			1
Plan curtailments	(16		)	—			—			—			—			—
Benefits and expenses paid	(6		)	(6		)	(5		)	(10		)	(1		)	(4		)
Actuarial loss (gain)	13			6			16			7			(8		)	2
Changes in foreign currency exchange rates	—			—			8			(2		)	—			—
Ending obligations	$	178		$	170		$	299		$	260		$	47		$	52
Changes in plans assets
Beginning fair value	$	138		$	134		$	198		$	201		$	—		$	—
Actual return on plan assets	19			2			17			(2		)	—			—
Employer contributions	7			8			8			7			—			2
Participant contributions	—			—			3			3			1			1
Plan settlements	—			—			—			—			—			—
Benefits and expenses paid	(6		)	(6		)	(5		)	(10		)	(1		)	(3		)
Changes in foreign currency exchange rates	—			—			7			(1		)	—			—
Ending fair value	$	158		$	138		$	228		$	198		$	—		$	—
Reconciliation of funded status
Funded status	$	(20	)	$	(32	)	$	(71	)	$	(62	)	$	(47	)	$	(52	)
Net Consolidated Balance Sheet liability	$	(20	)	$	(32	)	$	(71	)	$	(62	)	$	(47	)	$	(52	)

Schedule of amounts recognized in balance sheet

	Pension Plans												Post-Retirement Medical  Benefit Plans
	United States						International
	2012			2011			2012			2011			2012			2011
Amounts recognized in the Company's Consolidated Balance Sheets: For years after adoption of the funded status provisions of SFAS 158
Current liabilities	$	—		$	—		$	—		$	(1	)	$	(3	)	$	(2	)
Pension and post-retirement benefits	(20		)	(32		)	(71		)	(61		)	(44		)	(50		)
Net amount recognized	$	(20	)	$	(32	)	$	(71	)	$	(62	)	$	(47	)	$	(52	)
Reconciliation of amounts recognized in the Company's Consolidated Balance Sheets
Prior service (cost) credit	$	—		$	—		$	(1	)	$	(1	)	$	5		$	6
Net (loss) gain	(58		)	(74		)	(65		)	(58		)	7			(1		)
Accumulated other comprehensive (loss) income	$	(58	)	$	(74	)	$	(66	)	$	(59	)	$	12		$	5
Accumulated contributions in excess of (less than) net periodic benefit cost	38			42			(5		)	(3		)	(59		)	(57		)
Net amount liability recognized in statement of financial position	$	(20	)	$	(32	)	$	(71	)	$	(62	)	$	(47	)	$	(52	)

Schedule of amounts recognized in other comprehensive income and estimated amounts that will be amortized from accumulated other comprehensive income over the next fiscal year

	Pension Plans																		Post-Retirement Medical Benefit Plans
	United States									International
	2012			2011			2010			2012			2011			2010			2012			2011		2010
Changes in plan assets and benefit obligations recognized in other comprehensive income
Net loss (gain) arising during the year	$	(11	)	$	15		$	3		$	9		$	19		$	12		$	(8	)	$	2	$	1
Effect of changes in foreign currency exchange rates on amounts included in AOCI	—			—			—			2			(1		)	2			—			—		—
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	(5		)	(4		)	(13		)	(4		)	(2		)	(1		)	—			—		—
Total recognized in other comprehensive loss (income)—pretax	$	(16	)	$	11		$	(10	)	$	7		$	16		$	13		$	(7	)	$	3	$	2
Total recognized in net periodic benefit cost and other comprehensive loss	$	(5	)	$	20		$	8		$	18		$	26		$	21		$	(5	)	$	6	$	5
Estimated amounts that will be amortized from accumulated other comprehensive income over the next fiscal year
Prior service (cost) credit	$	—		$	—		$	(1	)	$	—		$	—		$	—		$	1		$	1	$	1
Net loss	(1		)	(5		)	(4		)	(4		)	(4		)	(2		)	—			—		—
Total estimated amortization	$	(1	)	$	(5	)	$	(5	)	$	(4	)	$	(4	)	$	(2	)	$	1		$	1	$	1

Schedule of components of the net periodic benefit costs

The components of the net periodic benefit costs are as follows:

	Pension Plans																		Post-Retirement Medical Benefit Plans
	United States									International
	2012			2011			2010			2012			2011			2010			2012			2011			2010
Service cost	$	10		$	8		$	7		$	8		$	9		$	7		$	1		$	1		$	1
Interest cost	7			7			8			9			9			9			2			3			3
Expected return on plan assets	(11		)	(11		)	(10		)	(10		)	(10		)	(9		)	—			—			—
Amortization	5			5			6			4			2			1			(1		)	(1		)	(1		)
Settlement loss	—			—			7			—			—			—			—			—			—
Net periodic benefit cost	$	11		$	9		$	18		$	11		$	10		$	8		$	2		$	3		$	3

Schedule of rate assumptions associated with the pension and post-retirement medical benefit plans to determine benefit obligations and additional year-end information

The rate assumptions associated with the pension and post-retirement medical benefit plans to determine benefit obligations and additional year-end information are as follows:

	Pension Plans												Post-Retirement Medical Benefit Plans
	United States						International
	2012			2011			2012			2011			2012			2011
Assumptions to determine benefit obligations
Discount rate	3.60		%	4.35		%	2.96		%	3.52		%	3.90		%	4.50		%
Compensation rate increase	n/a			3.55		%	2.59		%	2.95		%	n/a			n/a
Measurement date	Dec-31			Dec-31			Dec-31			Dec-31			Dec-31			Dec-31
Additional year-end information
Accumulated benefit obligation	$	178		$	159		$	268		$	227		n/a			n/a
Plans with accumulated benefit obligations in excess of plan assets:
Projected benefit obligation	$	178		$	170		$	206		$	260		n/a			n/a
Accumulated benefit obligation	178			159			183			227			n/a			n/a
Fair value of plan assets	158			138			140			198			n/a			n/a
Plans with projected benefit obligations in excess of plan assets:
Projected benefit obligation	$	178		$	170		$	299		$	260		$	47		$	52
Fair value of plan assets	158			138			228			198			—			—

Schedule of rate assumptions associated with the pension and post-retirement medical benefit plans to determine periodic pension costs

The rate assumptions associated with the pension and post-retirement medical benefit plans to determine periodic pension costs are as follows:

	Pension Plans												Post-Retirement Medical Benefit Plans
	United States						International
	2012		2011		2010		2012		2011		2010		2012		2011		2010
Discount rate	4.35	%	5.05	%	5.65	%	3.52	%	3.69	%	4.40	%	4.50	%	5.25	%	5.85	%
Expected rate of return on plan assets	8.25	%	8.25	%	8.25	%	4.98	%	4.85	%	5.01	%	n/a		n/a		n/a
Compensation rate increase	3.55	%	3.55	%	3.60	%	2.95	%	3.05	%	3.13	%	n/a		n/a		n/a

Schedule of employer contributions and benefit payments

The expected employer contributions and benefit payments are shown in the following table for the pension and post-retirement medical benefit plans:

		Pension Plans				Post-Retirement Medical Benefit Plans(1)		Expected Medicare Subsidy Receipts
Cash Flows	Years Ending	United States		International
Expected employer contributions	2013	$	—	$	8	$	2	n/a
Expected benefit payments for year ending December 31st	2013	12		5		2		—
	2014	14		5		2		—
	2015	14		5		2		—
	2016	15		6		3		—
	2017	15		6		3		—
	Next 5 years	83		39		13		2

(1) Expected payments for Post-Retirement Medical Benefit Plans are shown net of the expected Medicare subsidy receipts.

Schedule of target asset allocations and weighted average asset allocations

	Target Allocations		Weighted Average Asset Allocations
	U.S. Plan	International Plans	U.S. Plan		International Plans
Equity Securities	57–93%	38–50%	75	%	45	%
Real Estate	—	6–12%	—		10	%
Debt Securities	10–40%	36–57%	25	%	40	%
Other	0–5%	0–10%	—		5	%

Schedule of fair value measurements

Fair Value Measurements at December 31, 2012

Assets	Quoted Prices in Active Markets for Identical Assets (Level 1(1))		Significant Other Observable Inputs (Level 2(2))		Total
Corporate stocks — common	$	8	$	—	$	8
Government debt	8		—		8
Corporate and other non-government debt	16		—		16
Real estate	—		22		22
Common/collective trust funds — equity	—		223		223
Common/collective trust funds — government debt	—		12		12
Common/collective trust funds — Corporate and other non-government debt	—		88		88
Cash and cash equivalents	4		—		4
Other	—		5		5
Total	$	36	$	350	$	386

Fair Value Measurements at December 31, 2011

Assets	Quoted Prices in Active Markets for Identical Assets (Level 1(1))		Significant Other Observable Inputs (Level 2(2))		Total
Corporate stocks — common	$	7	$	—	$	7
Government debt	14		—		14
Corporate and other non-government debt	9		—		9
Real estate	—		19		19
Common/collective trust funds — equity	—		191		191
Common/collective trust funds — government debt	—		11		11
Common/collective trust funds — Corporate and other non-government debt	—		78		78
Cash and cash equivalents	2		—		2
Other	—		5		5
Total	$	32	$	304	$	336

(1) Level 1 instruments use observable market prices for the identical item in active markets and have the most reliable valuations.

(2) Level 2 instruments are valued through broker/dealer quotation or through market-observable inputs for similar items in active markets. Equity securities categorized as Level 2 assets are primarily non-exchange-traded commingled or collective funds where the underlying securities have observable prices available from active markets. Valuation is based on the net asset value of fund units held as derived from the fair value of the underlying assets.