|
Debt (Details) (USD $)
In Millions, unless otherwise specified |
3 Months Ended | |
|---|---|---|
|
Mar. 31, 2013
|
Dec. 31, 2012
|
|
| Debt | ||
| Principal | $ 7,112.1 | $ 7,150.2 |
| Discount | (79.2) | (79.7) |
| Carry Value | 7,032.9 | 7,070.5 |
| Less: Current portion | (25.1) | (19.4) |
| Long-term portion | 7,007.8 | 7,051.1 |
|
Credit facilities: Uncommitted revolver [Member]
|
||
| Debt | ||
| Interest Rate | Variable | |
| Principal | 0 | 13.9 |
| Discount | 0 | 0 |
| Carry Value | 0 | 13.9 |
|
Credit facilities: April 2016 [Member]
|
||
| Debt | ||
| Interest Rate | Variable | |
| Principal | 0 | 25.0 |
| Discount | 0 | 0 |
| Carry Value | 0 | 25.0 |
|
Credit facilities: May 2017 [Member]
|
||
| Debt | ||
| Interest Rate | Variable | |
| Principal | 0 | 0 |
| Discount | 0 | 0 |
| Carry Value | 0 | 0 |
|
Senior notes: May 2018 [Member]
|
||
| Debt | ||
| Interest Rate (in percentage) | 3.80% | |
| Principal | 700.0 | 700.0 |
| Discount | (0.2) | (0.2) |
| Carry Value | 699.8 | 699.8 |
|
Senior notes: September 2019 [Member]
|
||
| Debt | ||
| Interest Rate (in percentage) | 5.50% | |
| Principal | 650.0 | 650.0 |
| Discount | (3.3) | (3.4) |
| Carry Value | 646.7 | 646.6 |
|
Senior notes: March 2020 [Member]
|
||
| Debt | ||
| Interest Rate (in percentage) | 5.00% | |
| Principal | 850.0 | 850.0 |
| Discount | (0.1) | (0.1) |
| Carry Value | 849.9 | 849.9 |
|
Senior notes: November 2021 [Member]
|
||
| Debt | ||
| Interest Rate (in percentage) | 5.25% | |
| Principal | 600.0 | 600.0 |
| Discount | 0 | 0 |
| Carry Value | 600.0 | 600.0 |
|
Senior notes: June 2022 [Member]
|
||
| Debt | ||
| Interest Rate (in percentage) | 3.55% | |
| Principal | 850.0 | 850.0 |
| Discount | (2.2) | (2.2) |
| Carry Value | 847.8 | 847.8 |
|
Senior notes: May 2023 [Member]
|
||
| Debt | ||
| Interest Rate (in percentage) | 4.75% | |
| Principal | 550.0 | 550.0 |
| Discount | (1.3) | (1.3) |
| Carry Value | 548.7 | 548.7 |
|
Senior notes: March 2035 [Member]
|
||
| Debt | ||
| Interest Rate (in percentage) | 6.086% | |
| Principal | 275.7 | 275.7 |
| Discount | (24.8) | (24.9) |
| Carry Value | 250.9 | 250.8 |
|
Senior notes: March 2040 [Member]
|
||
| Debt | ||
| Interest Rate (in percentage) | 6.20% | |
| Principal | 650.0 | 650.0 |
| Discount | (0.5) | (0.5) |
| Carry Value | 649.5 | 649.5 |
|
Senior notes: May 2041 [Member]
|
||
| Debt | ||
| Interest Rate (in percentage) | 5.70% | |
| Principal | 600.0 | 600.0 |
| Discount | (3.3) | (3.4) |
| Carry Value | 596.7 | 596.6 |
|
Debentures: May 2021 [Member]
|
||
| Debt | ||
| Interest Rate (in percentage) | 9.25% | |
| Principal | 35.3 | 35.3 |
| Discount | (1.8) | (1.9) |
| Carry Value | 33.5 | 33.4 |
|
Debentures: September 2035 [Member]
|
||
| Debt | ||
| Interest Rate (in percentage) | 7.40% | |
| Principal | 165.3 | 165.2 |
| Discount | (41.4) | (41.4) |
| Carry Value | 123.9 | 123.8 |
|
Tax-exempt: 2013 - 2035 [Member]
|
||
| Debt | ||
| Interest rate, minimum | 0.16% | |
| Interest rate, maximum | 5.625% | |
| Principal | 1,096.7 | 1,097.9 |
| Discount | (0.3) | (0.4) |
| Carry Value | 1,096.4 | 1,097.5 |
|
Other: 2013 - 2046 [Member]
|
||
| Debt | ||
| Interest rate, minimum | 5.00% | |
| Interest rate, maximum | 11.90% | |
| Principal | 89.1 | 87.2 |
| Discount | 0 | 0 |
| Carry Value | $ 89.1 | $ 87.2 |