Stock Based Compensation And Other Incentive Plans (Narrative) (Details) (USD $)	12 Months Ended
Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2009
Share based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares authorized for Incentive Plan	18,000,000
Exercised, aggregate intrinsic value	$ 2,600,000	$ 3,000,000	$ 100,000
Stock options compensation expense	8,800,000	10,600,000	11,800,000
Options vested in period fair value	9,900,000	10,600,000	9,100,000
Share based awards vesting period	four years
Unrecognized compensation cost	8,200,000
Long term incentive plan amounts accrued	65,323,000	51,327,000
Participants maximum deferred amount in base salaries percentage	85.00%
Participants maximum deferred amount in annual incentive awards percentage	100.00%
Participants maximum deferred stock awards percentage	100
Net cash surrender values	35,800,000	40,700,000
Net income (expense) related to deferred compensation plan	6,200,000	(2,800,000)	4,100,000
Deferred compensation plan liability	32,700,000	38,500,000
Restricted Stock [Member]
Share based Compensation Arrangement by Share-based Payment Award [Line Items]
Share based awards vesting period	three
Weighted average fair value of restricted stock granted	$ 30.42	$ 22.03	$ 14.05
Grant date fair value	1,100,000	400,000	1,500,000
Restricted Stock Units [Member]
Share based Compensation Arrangement by Share-based Payment Award [Line Items]
Share based awards vesting period	three years
Grant date fair value	1,400,000		400,000
Restricted Stock And Restricted Stock Units [Member]
Share based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted compensation expense	2,100,000	1,100,000	1,700,000
Unrecognized compensation cost	3,400,000
Long-Term Incentive Plan [Member]
Share based Compensation Arrangement by Share-based Payment Award [Line Items]
Compensation expense	2,700,000	3,800,000	2,600,000
Long term incentive plan amounts accrued	$ 9,600,000	$ 6,400,000
Employee Stock Options [Member]
Share based Compensation Arrangement by Share-based Payment Award [Line Items]
Share based awards vesting period	one year

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Participants maximum differed amount in annual incentive awards percentage

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Participants maximum differed shares in restricted stock unit or performance contingent stock awards percentage

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Share based compensation arrangement by share based payment award options vested in period fair value

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- Definition

Carrying amount as of the balance sheet date of amounts which could be received based on the terms of the insurance contract upon surrendering life policies owned by the entity.

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-Name Accounting Standards Codification

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Aggregate carrying value as of the balance sheet date of the liabilities for all deferred compensation arrangements. Represents currently earned compensation under compensation arrangements that is not actually paid until a later date.

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Total of the carrying values as of the balance sheet date of obligations incurred through that date and payable for obligations related to services received from employees, such as accrued salaries and bonuses, payroll taxes and fringe benefits. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).

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As of the balance sheet date, the aggregate unrecognized cost of equity-based awards made to employees under equity-based compensation awards that have yet to vest.

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The noncash expense that represents the cost of restricted stock or unit distributed to employees as compensation.

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-Name Statement of Financial Accounting Standard (FAS)

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-Paragraph 28

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Expenditures for salaries for officers and non-officers. Does not include allocated share-based compensation, pension and post-retirement benefit expense or other labor-related non-salary expense. For commercial and industrial companies, excludes any direct and overhead labor that is included in cost of goods sold.

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Description of the period of time over which an employee's right to exercise an award is no longer contingent on satisfaction of either a service condition, market condition or a performance condition, which may be expressed in a variety of ways (for example, in years, month and year).

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The weighted average fair value at grant date for nonvested equity-based awards issued during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

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The total fair value of equity-based awards for which the grantee gained the right during the reporting period, by satisfying service and performance requirements, to receive or retain shares or units, other instruments, or cash in accordance with the terms of the arrangement.

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The maximum number of shares (or other type of equity) originally approved (usually by shareholders and board of directors), net of any subsequent amendments and adjustments, for awards under the equity-based compensation plan. As stock or unit options and equity instruments other than options are awarded to participants, the shares or units remain authorized and become reserved for issuance under outstanding awards (not necessarily vested).

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The total accumulated difference between fair values of underlying shares on dates of exercise and exercise price on options which were exercised (or share units converted) into shares during the reporting period under the plan.

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The noncash expense that accounts for the value of stock or unit options distributed to employees as compensation.

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