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Share-Based Payment Arrangements (Summary Of Stock Options Outstanding And Exercisable) (Details) (USD $) | 12 Months Ended
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Dec. 31, 2011 years
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items] |
Options Outstanding | 2,326,776
Options Outstanding, Weighted Average Remaining Contractual Life (Years) | 5.9
Options Outstanding, Weighted Average Exercise Price per Share | $ 40.11
Options Exercisable | 1,110,743
Options Exercisable, Weighted Average Contractual Life (Years) | 4.7
Options Exercisable, Weighted Average Exercise Price | $ 39.74
$14.62 - $15.00 [Member] |
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items] |
Options Outstanding | 25,100
Options Outstanding, Weighted Average Remaining Contractual Life (Years) | 1.0
Options Outstanding, Weighted Average Exercise Price per Share | $ 14.62
Options Exercisable | 25,100
Options Exercisable, Weighted Average Contractual Life (Years) | 1.0
Options Exercisable, Weighted Average Exercise Price | $ 14.62
Minimum Exercise Price | $ 14.62
Maximum Exercise Price | $ 15.00
$15.01 - $25.00 [Member] |
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items] |
Options Outstanding | 49,763
Options Outstanding, Weighted Average Remaining Contractual Life (Years) | 2.1
Options Outstanding, Weighted Average Exercise Price per Share | $ 19.64
Options Exercisable | 49,763
Options Exercisable, Weighted Average Contractual Life (Years) | 2.1
Options Exercisable, Weighted Average Exercise Price | $ 19.64
Minimum Exercise Price | $ 15.01
Maximum Exercise Price | $ 25.00
$25.01 - $35.00 [Member] |
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items] |
Options Outstanding | 109,801
Options Outstanding, Weighted Average Remaining Contractual Life (Years) | 3.2
Options Outstanding, Weighted Average Exercise Price per Share | $ 32.60
Options Exercisable | 109,801
Options Exercisable, Weighted Average Contractual Life (Years) | 3.2
Options Exercisable, Weighted Average Exercise Price | $ 32.60
Minimum Exercise Price | $ 25.01
Maximum Exercise Price | $ 35.00
$35.01 - $40.00 [Member] |
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items] |
Options Outstanding | 639,750
Options Outstanding, Weighted Average Remaining Contractual Life (Years) | 6.8
Options Outstanding, Weighted Average Exercise Price per Share | $ 37.92
Options Exercisable | 160,383
Options Exercisable, Weighted Average Contractual Life (Years) | 5.7
Options Exercisable, Weighted Average Exercise Price | $ 37.40
Minimum Exercise Price | $ 35.01
Maximum Exercise Price | $ 40.00
$40.01 - $44.00 [Member] |
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items] |
Options Outstanding | 1,282,118
Options Outstanding, Weighted Average Remaining Contractual Life (Years) | 6.1
Options Outstanding, Weighted Average Exercise Price per Share | $ 42.19
Options Exercisable | 593,952
Options Exercisable, Weighted Average Contractual Life (Years) | 4.9
Options Exercisable, Weighted Average Exercise Price | $ 42.81
Minimum Exercise Price | $ 40.01
Maximum Exercise Price | $ 44.00
$44.01 - $48.15 [Member] |
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items] |
Options Outstanding | 220,244
Options Outstanding, Weighted Average Remaining Contractual Life (Years) | 5.4
Options Outstanding, Weighted Average Exercise Price per Share | $ 45.62
Options Exercisable | 171,744
Options Exercisable, Weighted Average Contractual Life (Years) | 5.3
Options Exercisable, Weighted Average Exercise Price | $ 45.35
Minimum Exercise Price | $ 44.01
Maximum Exercise Price | $ 48.15

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- Definition Weighted average exercise price as of the balance sheet date for those equity-based payment arrangements exercisable and outstanding. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1)(iii) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition The weighted average remaining life of the exercisable stock options as of the balance sheet date for all option plans in the customized range of exercise prices. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (e)(2) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition The floor of a customized range of exercise prices for purposes of disclosing shares potentially issuable under outstanding stock option awards on all stock option plans and other required information pertaining to awards in the customized range. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 123R -Paragraph 64 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (g) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition The number of shares reserved for issuance pertaining to the outstanding exercisable stock options as of the balance sheet date in the customized range of exercise prices for which the market and performance vesting condition has been satisfied. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 123R -Paragraph A240 -Subparagraph b(1)(c) -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(iii) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition The number of shares reserved for issuance pertaining to the outstanding stock options as of the balance sheet date for all option plans in the customized range of exercise prices. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 123R -Paragraph A240 -Subparagraph b(1)(a, b) -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1)(i)-(ii) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition The weighted average price as of the balance sheet date at which grantees could acquire the underlying shares with respect to all outstanding stock options which are in the customized range of exercise prices. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1)(i)-(ii) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition The weighted-average period remaining as of the balance sheet date until option expiration pertaining to the outstanding stock options for all option plans in the customized range of exercise prices, which may be expressed in a variety of ways (for example, years, months). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (e)(1) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition The ceiling of a customized range of exercise prices for purposes of disclosing shares potentially issuable under outstanding stock option awards on all stock option plans and other required information pertaining to awards in the customized range. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 123R -Paragraph 64 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (g) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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