XML 30 R37.htm IDEA: XBRL DOCUMENT
v2.4.0.6

Earnings Per Unit (Tables) | 3 Months Ended
--- | ---
Mar. 31, 2013
Earnings Per Unit [Abstract] |
Basic and Diluted Earnings Per Unit | The following table presents our calculation of basic and diluted earnings per unit for the periods indicated:
|  | For the Three Months Ended March 31, |
|  | 2013 |  |  | 2012 |
BASIC EARNINGS PER UNIT |  |  |  |  |  |
Numerator: |  |  |  |  |  |
Net income attributable to limited partners |  | $ | 753.5 |  |  | $ | 651.3 |
Denominator: |  |  |  |  |  |  |  |
Weighted-average number of distribution-bearing common units outstanding |  |  | 881.6 |  |  |  | 856.6 |
Basic earnings per unit: |  |  |  |  |  |  |  |
Net income attributable to limited partners |  | $ | 0.85 |  |  | $ | 0.76 |
DILUTED EARNINGS PER UNIT |  |  |  |  |  |  |  |
Numerator: |  |  |  |  |  |  |  |
Net income attributable to limited partners |  | $ | 753.5 |  |  | $ | 651.3 |
Denominator: |  |  |  |  |  |  |  |
Weighted-average number of units outstanding: |  |  |  |  |  |  |  |
Distribution-bearing common units |  |  | 881.6 |  |  |  | 856.6 |
Class B units |  |  | 4.5 |  |  |  | 4.5 |
Designated Units |  |  | 23.7 |  |  |  | 26.1 |
Incremental option units |  |  | 1.2 |  |  |  | 1.5 |
Total |  |  | 911.0 |  |  |  | 888.7 |
Diluted earnings per unit: |  |  |  |  |  |  |  |
Net income attributable to limited partners |  | $ | 0.83 |  |  | $ | 0.73 |

X
- Details
Name: | us-gaap_EarningsPerUnitAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of an entity's basic and diluted earnings per share calculations. + References No definition available. + Details
Name: | us-gaap_ScheduleOfEarningsPerShareBasicAndDilutedTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration