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Borrowings | 3 Months Ended
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Mar. 31, 2012
Borrowings [Abstract] |
Borrowings | 6. Borrowings Borrowings consist of the following:
|  | March 31, 2012 |  |  | December 31, 2011 |
4.875% 10-year notes due October 15, 2015 |  | $ | 299,293 |  |  | $ | 299,244 |
5.45% 10-year notes due March 15, 2018 |  |  | 348,021 |  |  |  | 347,938 |
4.30% 10-year notes due March 1, 2021 |  |  | 449,767 |  |  |  | 449,761 |
6.60% 30-year notes due March 15, 2038 |  |  | 247,705 |  |  |  | 247,683 |
5.375% 30-year notes due March 1, 2041 |  |  | 345,392 |  |  |  | 345,352 |
6.65% 30-year debentures due June 1, 2028 |  |  | 199,422 |  |  |  | 199,414 |
5.375% 30-year debentures due October 15, 2035 |  |  | 296,247 |  |  |  | 296,208 |
Other |  |  | 9,420 |  |  |  | 1,652 |
Total long-term debt |  |  | 2,195,267 |  |  |  | 2,187,252 |
Less current installments |  |  | (3,510 | ) |  |  | (1,022 | )
|  | $ | 2,191,757 |  |  | $ | 2,186,230 |
The Company maintains a $1 billion unsecured revolving credit facility which expires in November 2016. The Company primarily uses this facility as liquidity back-up for its commercial paper program and has not drawn down any loans under the $1 billion facility and does not anticipate doing so. The Company generally uses commercial paper borrowings for general corporate purposes, funding of acquisitions and the repurchases of its common stock. Interest expense and interest income for the three months ended March 31, 2012 and 2011 was as follows:
|  | Three Months Ended March 31, |
|  | 2012 |  |  | 2011 |
Interest expense |  | $ | 31,645 |  |  | $ | 31,036 |
Interest income |  |  | (1,618 | ) |  |  | (2,718 | )
Interest expense, net |  | $ | 30,027 |  |  | $ | 28,318 |

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- Definition The entire disclosure for information about short-term and long-term debt arrangements, which includes amounts of borrowings under each line of credit, note payable, commercial paper issue, bonds indenture, debenture issue, own-share lending arrangements and any other contractual agreement to repay funds, and about the underlying arrangements, rationale for a classification as long-term, including repayment terms, interest rates, collateral provided, restrictions on use of assets and activities, whether or not in compliance with debt covenants, and other matters important to users of the financial statements, such as the effects of refinancing and noncompliance with debt covenants. + 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 210.5-02.19,20,22) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 129 -Paragraph 2, 4 -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 SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 19, 20, 22 -Article 5 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21475-112644 + Details
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