v2.4.0.8

Debt (Narrative) (Details) (USD $) | 3 Months Ended |
--- | --- | ---
Mar. 31, 2014 | Mar. 31, 2013 | Dec. 31, 2013
Debt Instrument [Line Items] |  |  |
Debt Instrument, Face Amount | $ 2,900,000,000 |  | $ 2,700,000,000
Debt placement costs | (2,648,000) | 0 |
Senior Notes [Member] | 5.15% Notes Due 2043 [Member] |  |  |
Debt Instrument [Line Items] |  |  |
Debt Instrument, Face Amount | 550,000,000.0 |  |
Debt Instrument, Interest Rate, Stated Percentage | 5.15% |  |
Senior Notes [Member] | 5.15% Notes Due 2043 [Member] | Debt Offering Part Two [Member] |  |  |
Debt Instrument [Line Items] |  |  |
Debt Instrument, Face Amount | 250,000,000.0 |  |
Debt Instrument, Interest Rate, Stated Percentage | 5.15% |  |
Notes At Price | 103.10% |  |
After Underwriting Discounts | 255,100,000 |  |
Debt placement costs | (2,648,000) |  |
Senior Notes [Member] | 6.45% Notes Due 2014 [Member] |  |  |
Debt Instrument [Line Items] |  |  |
Debt Instrument, Face Amount | 250,000,000.0 |  |
Debt Instrument, Interest Rate, Stated Percentage | 6.45% |  |
Revolving Credit Facility [Member] |  |  |
Debt Instrument [Line Items] |  |  |
Borrowing capacity | 1,000,000,000.0 |  |
Unused commitment fee | 0.125% |  |
Obligation for letters of credit | $ 5,600,000 |  |
Revolving Credit Facility [Member] | Minimum [Member] |  |  |
Debt Instrument [Line Items] |  |  |
Debt Instrument, Basis Spread on Variable Rate | 1.00% |  |
Unused commitment fee | 0.10% |  |
Revolving Credit Facility [Member] | Maximum [Member] |  |  |
Debt Instrument [Line Items] |  |  |
Debt Instrument, Basis Spread on Variable Rate | 1.75% |  |
Unused commitment fee | 0.28% |  |

X
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- Definition Notes At Price + References No definition available. + Details
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- Definition Face (par) amount of debt instrument at time of issuance. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6451184&loc=d3e28551-108399 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 55 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=6584090&loc=d3e28878-108400 + Details
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- Definition Contractual interest rate for funds borrowed, under the debt agreement. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 22 -Article 5 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.22(a)(1)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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- Details
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- Definition The total amount of the contingent obligation under letters of credit outstanding as of the reporting date. + References No definition available. + Details
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- Definition Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.19(b),22(b)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 19, 22 -Article 5 + Details
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- Definition The fee, expressed as a percentage of the line of credit facility, for available but unused credit capacity under the credit facility. + References No definition available. + Details
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- Definition The cash outflow paid to third parties in connection with debt origination, which will be amortized over the remaining maturity period of the associated long-term debt. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 15 -Subparagraph (e) -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3291-108585 + Details
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