v2.4.0.6

Retirement Plans (Schedule Of Fair Values Of Pension Assets By Asset Class) (Details) (USD $) In Millions, unless otherwise specified | Dec. 31, 2011 | Dec. 31, 2010
--- | --- | ---
Defined Benefit Plan Disclosure [Line Items] |  |
Total investments, sum of allocation percentages | 100.00% | 100.00%
Fair value measurements | $ 1,187 | $ 632
Level 1 Inputs [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Fair value measurements | 344 | 376
Level 2 Inputs [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Fair value measurements | 753 | 198
Level 3 Inputs [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Fair value measurements | 90 | 58
Equity Securities [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Equity securities, actual allocation | 18.00% | 50.80%
Fair value measurements | 214 | 321
Equity Securities [Member] | Level 1 Inputs [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Fair value measurements |  | 139
Equity Securities [Member] | Level 2 Inputs [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Fair value measurements | 214 | 182
Equity Securities [Member] | United States Large Cap [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Equity securities, actual allocation |  | 22.30%
Fair value measurements |  | 141
Equity Securities [Member] | United States Large Cap [Member] | Level 2 Inputs [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Fair value measurements |  | 141
Equity Securities [Member] | United States Small Cap [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Equity securities, actual allocation |  | 14.10%
Fair value measurements |  | 89
Equity Securities [Member] | United States Small Cap [Member] | Level 1 Inputs [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Fair value measurements |  | 89
Equity Securities [Member] | International Large Cap [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Equity securities, actual allocation |  | 14.40%
Fair value measurements |  | 91
Equity Securities [Member] | International Large Cap [Member] | Level 1 Inputs [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Fair value measurements |  | 50
Equity Securities [Member] | International Large Cap [Member] | Level 2 Inputs [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Fair value measurements |  | 41
Fixed Income Securities [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Fixed income securities, actual allocation | 71.80% | 37.50%
Fair value measurements | 852 | 237
Fixed Income Securities [Member] | Level 1 Inputs [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Fair value measurements | 328 | 237
Fixed Income Securities [Member] | Level 2 Inputs [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Fair value measurements | 524 |
Fixed Income Securities [Member] | Corporate Bonds [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Fixed income securities, actual allocation | 24.80% | 22.00%
Fair value measurements | 294 | 139
Fixed Income Securities [Member] | Corporate Bonds [Member] | Level 1 Inputs [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Fair value measurements | 265 | 139
Fixed Income Securities [Member] | Corporate Bonds [Member] | Level 2 Inputs [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Fair value measurements | 29 |
Fixed Income Securities [Member] | United States Treasury Obligations [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Fixed income securities, actual allocation | 43.90% | 10.90%
Fair value measurements | 522 | 69
Fixed Income Securities [Member] | United States Treasury Obligations [Member] | Level 1 Inputs [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Fair value measurements | 27 | 69
Fixed Income Securities [Member] | United States Treasury Obligations [Member] | Level 2 Inputs [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Fair value measurements | 495 |
Fixed Income Securities [Member] | Other Bonds [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Fixed income securities, actual allocation | 3.10% | 4.60%
Fair value measurements | 36 | 29
Fixed Income Securities [Member] | Other Bonds [Member] | Level 1 Inputs [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Fair value measurements | 36 | 29
Other Securities [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Other securities, actual allocation | 10.20% | 11.70%
Fair value measurements | 121 | 74
Other Securities [Member] | Level 1 Inputs [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Fair value measurements | 16 |
Other Securities [Member] | Level 2 Inputs [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Fair value measurements | 15 | 16
Other Securities [Member] | Level 3 Inputs [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Fair value measurements | 90 | 58
Other Securities [Member] | Hedge Fund & Alternative Investments [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Other securities, actual allocation | 8.90% | 9.20%
Fair value measurements | 106 | 58
Other Securities [Member] | Hedge Fund & Alternative Investments [Member] | Level 1 Inputs [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Fair value measurements | 16 |
Other Securities [Member] | Hedge Fund & Alternative Investments [Member] | Level 3 Inputs [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Fair value measurements | 90 | 58
Other Securities [Member] | Short Term Investment Funds [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Other securities, actual allocation | 1.30% | 2.50%
Fair value measurements | 15 | 16
Other Securities [Member] | Short Term Investment Funds [Member] | Level 2 Inputs [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Fair value measurements | $ 15 | $ 16

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- Definition The percentage of the fair value of debt securities to the fair value of total plan assets held as of the measurement date. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 132R -Paragraph 5 -Subparagraph d(1) -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 715 -SubTopic 20 -Section 50 -Paragraph 5 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=6962843&loc=d3e2446-114920 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (d)(1) -URI http://asc.fasb.org/extlink&oid=6962843&loc=d3e1928-114920 + Details
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- Definition The percentage of the fair value of equity securities to the fair value of total plan assets held as of the measurement date. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 132R -Paragraph 5 -Subparagraph d(1) -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 715 -SubTopic 20 -Section 50 -Paragraph 5 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=6962843&loc=d3e2446-114920 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (d)(1) -URI http://asc.fasb.org/extlink&oid=6962843&loc=d3e1928-114920 + Details
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- Definition Assets, usually stocks, bonds, and other investments, that have been segregated and restricted (usually in a trust) to provide benefits, at their fair value as of the measurement date. Plan assets include amounts contributed by the employer (and by employees for a contributory plan) and amounts earned from investing the contributions, less benefits paid. If a plan has liabilities other than for benefits, those non-benefit obligations may be considered as reductions of plan assets. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 30 -Section 35 -Paragraph 50 -URI http://asc.fasb.org/extlink&oid=6867990&loc=d3e12355-114930 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 132R -Paragraph 5 -Subparagraph d(iv)(b)(i) -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 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 132R -Paragraph 5 -Subparagraph 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 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 87 -Paragraph 49 -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 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6962843&loc=d3e1928-114920 + Details
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- Definition The percentage of the fair value of investments other than debt securities, equity securities, and real estate to the fair value of total plan assets held as of the measurement date. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 132R -Paragraph 5 -Subparagraph d(1) -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 715 -SubTopic 20 -Section 50 -Paragraph 5 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=6962843&loc=d3e2446-114920 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (d)(1) -URI http://asc.fasb.org/extlink&oid=6962843&loc=d3e1928-114920 + Details
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