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Debt (Details) (USD $)
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3 Months Ended |
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Mar. 31, 2015
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Dec. 31, 2014
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| Lines of Credit [Abstract] |
|
|
| Available and unused credit lines |
$ 3,408,900,000 |
$ 3,437,800,000 |
| Short-Term Borrowings [Abstract] |
|
|
| Short-term borrowings |
9,600,000 |
7,200,000 |
| Long-Term Notes Payable [Abstract] |
|
|
| Long-term notes payable, carrying amount |
4,500,300,000 |
4,500,500,000 |
| Unamortized premium (discount) on Senior Notes, net |
10,900,000 |
11,100,000 |
| Adjustment to carrying value for interest rate swaps |
82,900,000 |
51,400,000 |
| Long-term notes payable, total |
4,594,100,000 |
4,563,000,000 |
| Long-term notes payable, current portion |
(300,000) |
(400,000) |
| Long-Term Notes Payable |
4,593,800,000 |
4,562,600,000 |
| Interest rate swaps, fair value |
76,000,000 |
42,700,000 |
| Credit Agreement expiring July 31, 2019 [Member] |
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|
| Lines of Credit [Abstract] |
|
|
| Credit Agreement, maximum borrowing capacity |
2,500,000,000 |
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| Credit Agreement, expiration date |
Jul. 31, 2019 |
|
| Available and unused credit lines |
2,500,000,000 |
2,500,000,000 |
| Credit Agreement, covenant terms |
The Credit Agreement contains financial covenants that require us to maintain a Leverage Ratio of consolidated indebtedness to consolidated EBITDA of no more than 3 times for the most recently ended 12-month period (under the Credit Agreement, EBITDA is defined as earnings before interest, taxes, depreciation and amortization) and an Interest Coverage Ratio of consolidated EBITDA to interest expense of at least 5 times for the most recently ended 12-month period. |
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| Credit Agreement, covenant compliance |
At March 31, 2015, we were in compliance with these covenants, as our Leverage Ratio was 2.0 times and our Interest Coverage Ratio was 12.9 times. |
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| Credit Agreement expiring July 31, 2019 [Member] | Commercial Paper [Member] |
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| Lines of Credit [Abstract] |
|
|
| Credit Agreement, maximum borrowing capacity |
2,000,000,000 |
|
| Uncommitted lines of credit [Member] |
|
|
| Lines of Credit [Abstract] |
|
|
| Available and unused credit lines |
908,900,000 |
937,800,000 |
| 5.9% Senior Notes due 2016 |
|
|
| Long-Term Notes Payable [Abstract] |
|
|
| Long-term notes payable, carrying amount |
1,000,000,000 |
1,000,000,000 |
| Interest rate |
5.90% |
|
| Maturity date |
Apr. 15, 2016 |
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| 6.25% Senior Notes due 2019 |
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|
| Long-Term Notes Payable [Abstract] |
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| Long-term notes payable, carrying amount |
500,000,000 |
500,000,000 |
| Interest rate |
6.25% |
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| Maturity date |
Jul. 15, 2019 |
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| 4.45% Senior Notes due 2020 |
|
|
| Long-Term Notes Payable [Abstract] |
|
|
| Long-term notes payable, carrying amount |
1,000,000,000 |
1,000,000,000 |
| Interest rate |
4.45% |
|
| Maturity date |
Aug. 15, 2020 |
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| 3.625% Senior Notes due 2022 |
|
|
| Long-Term Notes Payable [Abstract] |
|
|
| Long-term notes payable, carrying amount |
1,250,000,000 |
1,250,000,000 |
| Interest rate |
3.625% |
|
| Maturity date |
May 01, 2022 |
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| 3.65% Senior Notes due 2024 |
|
|
| Long-Term Notes Payable [Abstract] |
|
|
| Long-term notes payable, carrying amount |
750,000,000 |
750,000,000 |
| Interest rate |
3.65% |
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| Maturity date |
Nov. 01, 2024 |
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| Other notes and loans |
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| Long-Term Notes Payable [Abstract] |
|
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| Long-term notes payable, carrying amount |
300,000 |
500,000 |
| Interest Rate Swaps on 2022 Notes [Member] |
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| Long-Term Notes Payable [Abstract] |
|
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| Interest rate swaps, hedged amount |
1,250,000,000 |
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| Interest Rate Swaps on 2020 Notes [Member] |
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| Long-Term Notes Payable [Abstract] |
|
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| Interest rate swaps, hedged amount |
$ 1,000,000,000 |
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| LIBOR [Member] | Interest Rate Swaps on 2022 Notes [Member] |
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| Long-Term Notes Payable [Abstract] |
|
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| Interest rate swaps, spread |
1.05% |
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| LIBOR [Member] | Interest Rate Swaps on 2020 Notes [Member] |
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| Long-Term Notes Payable [Abstract] |
|
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| Interest rate swaps, spread |
2.16% |
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