XML 33 R31.htm IDEA: XBRL DOCUMENT
v2.4.1.9

Earnings Per Share (Tables) | 6 Months Ended
--- | ---
Mar. 31, 2015
Earnings Per Share |
Reconciliation of the denominators for basic and diluted EPS |
|  | Three Months Ended |  | Six Months Ended |
|  | March 31, 2015 |  | March 31, 2014 |  | March 31, 2015 |  | March 31, 2014 |
|  | (in millions) |
Denominator for basic earnings per share |  | 151.1 |  | 97.0 |  | 146.5 |  | 96.7 |
Potential common shares |  | 1.7 |  | 1.3 |  | — |  | 1.3 |
Denominator for diluted earnings per share |  | 152.8 |  | 98.3 |  | 146.5 |  | 98.0 |

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

X
- Definition Tabular disclosure of the weighted average number of shares used in calculating basic net earnings per share (or unit) and diluted earnings per share (or unit). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257 + Details
Name: | us-gaap_ScheduleOfWeightedAverageNumberOfSharesTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration