Elective deferrals vested percentage

No definition available.

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- Definition

Percentage of deferred earnings

+ References

No definition available.

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- Definition

Percentage Of Earnings Deferred Into Company Stock Units

+ References

No definition available.

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- Definition

Percentage Of Earnings Deferred Into Company Stock Units Company Match

+ References

No definition available.

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- Definition

Percentage Of Earnings Deferred Into Company Stock Units Deferred In Mutual Funds

+ References

No definition available.

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- Definition

Percentage Of Incentive Compensation Deferred Into Company Stock Units

+ References

No definition available.

+ Details

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- Definition

This element represents the amount of recognized equity-based compensation during the period, that is, the amount recognized as expense in the income statement (or as asset if compensation is capitalized). Alternate captions include the words "stock-based compensation".

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

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+ Details

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- Definition

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.

+ References

No definition available.

+ Details

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- Definition

Aggregate proceeds received by the entity during the annual period from exercises of stock or unit options and conversion of similar instruments granted under equity-based payment arrangements.

+ References

+ Details

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- Definition

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.

+ References

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- Definition

Weighted average period over which unrecognized compensation is expected to be recognized for equity-based compensation plans, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

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- Definition

The total recognized tax benefit related to compensation cost for equity-based payment arrangements recognized in income during the period.

+ References

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- Definition

Disclosure of the aggregate tax benefit realized from the exercise of stock options and the conversion of similar instruments during the annual period.

+ References

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- Definition

Sum of the carrying amounts as of the balance sheet date of all investments.

+ References

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-Name Regulation S-X (SX)

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-Subparagraph h

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- Definition

Period 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, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

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- Definition

The number of non-vested equity-based payment instruments, excluding stock (or unit) options, that validly exist and are outstanding as of the balance sheet date.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

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- Definition

The difference between the maximum number of shares (or other type of equity) authorized for issuance under the plan (including the effects of amendments and adjustments), and the sum of: 1) the number of shares (or other type of equity) already issued upon exercise of options or other equity-based awards under the plan; and 2) shares (or other type of equity) reserved for issuance on granting of outstanding awards, net of cancellations and forfeitures, if applicable.

+ References

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- Definition

Net number of share options (or share units) granted during the period.

+ References

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- Definition

The number of shares reserved for issuance under stock option agreements awarded under the plan that validly exist and are outstanding as of the balance sheet date, including vested options.

+ References

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- Definition

As of the balance sheet date, the number of shares into which fully vested and expected to vest stock options outstanding can be converted under the option plan.

+ References

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Employee Incentive, Deferred Compensation, And Retirement Plans (Details) (USD $)	3 Months Ended
	Mar. 31, 2012	Mar. 31, 2011	Dec. 31, 2011
Shares authorized to grant	8,900,000
Options granted during the period	0
Cash proceeds from the exercise of stock options	$ 1,200,000	$ 500,000
Tax benefits realized from the exercise of stock options	3,300,000	800,000
Investments	244,106,000		239,208,000
Deferred compensation liability	14,200,000		24,500,000
Incentive Stock Award Plans [Member]
Adjustments to Additional Paid in Capital, Share-based Compensation, Requisite Service Period Recognition, Value	15,100,000	9,100,000
Tax benefit related to stock-based compensation recognized in shareholders' equity	12,400,000	22,500,000
Stock Units [Member]
Unrecognized compensation expense related to non-vested options	172,600,000
Weighted-average period, compensation cost expected to recognized, in years	3 years 4 months 24 days
Total number of stock units outstanding	14,300,000
Unvested stock units outstanding	4,700,000
Percentage of deferred earnings	1.00%
SWAP Plan [Member]
Total number of stock units outstanding	14,100,000
Percentage of incentive compensation deferred into company stock units	15.00%
Percentage of earnings deferred into company stock units	4.00%
Percentage of earnings deferred into company stock units, Company match	25.00%
Elective deferrals vested percentage	100.00%
Options outstanding under the plan	14,000,000
Mutual Funds [Member]
Percentage of earnings deferred into company stock units, Company match	25.00%
Percentage Of Earnings Deferred Into Company Stock Units Deferred In Mutual Funds	2.00%
Investments	$ 36,900,000		$ 34,000,000
Maximum [Member] \| Incentive Stock Award Plans [Member]
Awards vesting period in years	8 years
Maximum [Member] \| Stock Units [Member]
Awards vesting period in years	8 years
Maximum [Member] \| Deferred Compensation Plans [Member]
Awards vesting period in years	8 years
Maximum [Member] \| SWAP Plan [Member]
Awards vesting period in years	7 years
Minimum [Member] \| Incentive Stock Award Plans [Member]
Awards vesting period in years	3 years
Minimum [Member] \| Stock Units [Member]
Awards vesting period in years	3 years
Minimum [Member] \| Deferred Compensation Plans [Member]
Awards vesting period in years	5 years
Minimum [Member] \| SWAP Plan [Member]
Awards vesting period in years	3 years