|
Acquisitions and Divestitures Copano Energy, L.L.C. Acquisition (Details) (USD $)
In Billions, unless otherwise specified |
Mar. 31, 2013
mi
|
|---|---|
| Business Acquisition [Line Items] | |
| Miles of pipeline | 73,000 |
|
Copano Energy LLC [Member]
|
|
| Business Acquisition [Line Items] | |
| Miles of pipeline | 6,900 |
| Processeing capacity | 1,000,000,000 |
| Treating capacity | 315,000,000 |
|
PIPELINE [Member] | Copano Energy LLC [Member]
|
|
| Business Acquisition [Line Items] | |
| Transportation Capacity | 2,700,000,000 |
|
Copano Energy LLC [Member] | Kinder Morgan Energy Partners, L.P. [Member]
|
|
| Business Acquisition [Line Items] | |
| Business Acquisition, Cost of Acquired Entity, Purchase Price | 5.0 |
| Business acquisition, purchase price, percent share-based | 100.00% |
| Business acquisition, share-for-share exchange rate | 45.63% |