Taxes on Income (Details Textual) (USD $) In Millions, unless otherwise specified	12 Months Ended
Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2009
Taxes on income (Textual) [Abstract]
Undistributed earnings of foreign subsidiaries for income tax purposes	$ 762
Net income tax payments	243	452	410
Increase in amount of unrecognized tax benefits that unfavorably impact tax expense	16
Total amount of federal, state and local, and foreign unrecognized tax benefits excluding interest and penalties	74	58	53	37
Accrued interest and penalties associated with uncertain tax positions	14	10
Operating Loss Carryforwards	$ 133

Amount of deferred tax liability attributable to taxable temporary differences from undistributed earnings of subsidiaries and other recognized entities not within the country of domicile of the entity.

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The amount of cash paid during the current period to foreign, federal, state, and local authorities as taxes on income, net of any cash received during the current period as refunds for the overpayment of taxes.

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- Definition

This element represents the total of accruals as of the date of the statement of financial position for interest recognized for an underpayment of income taxes computed by applying the applicable statutory rate of interest to the difference between a tax position recognized for financial reporting purposes and the amount previously taken or expected to be taken in a tax return of the entity and the amount of statutory penalties for a tax position claimed or expected to be claimed by the entity, in its tax return, that does not meet the minimum statutory threshold to avoid payment of penalties.

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