|
Transactions With Affiliates (Schedule of Long-term Debt) (Details) (USD $)
In Millions, unless otherwise specified
|
3 Months Ended |
|
|
Mar. 31, 2015
|
Dec. 31, 2014
|
| Schedule of Related Party Transactions, Long-Term Debt [Line Items] |
|
|
| Long-term Debt |
$ 630.9 |
|
| Notes Due 2015 |
|
|
| Schedule of Related Party Transactions, Long-Term Debt [Line Items] |
|
|
| Debt Instrument, Issuance Date |
Nov. 28, 2005 |
|
| Debt Instrument, Interest Rate, Stated Percentage |
5.41% |
|
| Debt Instrument, Maturity Date |
Nov. 30, 2015 |
|
| Long-term Debt |
0 |
|
| Notes Due 2016 |
|
|
| Schedule of Related Party Transactions, Long-Term Debt [Line Items] |
|
|
| Debt Instrument, Issuance Date |
Nov. 28, 2005 |
|
| Debt Instrument, Interest Rate, Stated Percentage |
5.45% |
|
| Debt Instrument, Maturity Date |
Nov. 28, 2016 |
|
| Long-term Debt |
0 |
|
| Notes Due 2025 |
|
|
| Schedule of Related Party Transactions, Long-Term Debt [Line Items] |
|
|
| Debt Instrument, Issuance Date |
Nov. 28, 2005 |
|
| Debt Instrument, Interest Rate, Stated Percentage |
5.92% |
|
| Debt Instrument, Maturity Date |
Nov. 28, 2025 |
|
| Long-term Debt |
0 |
|
| Notes Due 2032 |
|
|
| Schedule of Related Party Transactions, Long-Term Debt [Line Items] |
|
|
| Debt Instrument, Issuance Date |
Nov. 28, 2012 |
|
| Debt Instrument, Interest Rate, Stated Percentage |
4.63% |
|
| Debt Instrument, Maturity Date |
Nov. 28, 2032 |
|
| Long-term Debt |
0 |
|
| Notes Due 2037 |
|
|
| Schedule of Related Party Transactions, Long-Term Debt [Line Items] |
|
|
| Debt Instrument, Issuance Date |
Nov. 28, 2012 |
|
| Debt Instrument, Interest Rate, Stated Percentage |
4.94% |
|
| Debt Instrument, Maturity Date |
Nov. 30, 2037 |
|
| Long-term Debt |
0 |
|
| Notes Due 2037 [1] |
|
|
| Schedule of Related Party Transactions, Long-Term Debt [Line Items] |
|
|
| Debt Instrument, Issuance Date |
Dec. 19, 2012 |
|
| Debt Instrument, Interest Rate, Stated Percentage |
5.16% |
|
| Debt Instrument, Maturity Date |
Dec. 21, 2037 |
|
| Long-term Debt |
0 |
|
| Notes Due 2042 |
|
|
| Schedule of Related Party Transactions, Long-Term Debt [Line Items] |
|
|
| Debt Instrument, Issuance Date |
Nov. 28, 2012 |
|
| Debt Instrument, Interest Rate, Stated Percentage |
5.26% |
|
| Debt Instrument, Maturity Date |
Nov. 28, 2042 |
|
| Long-term Debt |
0 |
|
| Notes Due 2042 [1] |
|
|
| Schedule of Related Party Transactions, Long-Term Debt [Line Items] |
|
|
| Debt Instrument, Issuance Date |
Dec. 19, 2012 |
|
| Debt Instrument, Interest Rate, Stated Percentage |
5.49% |
|
| Debt Instrument, Maturity Date |
Dec. 18, 2042 |
|
| Long-term Debt |
0 |
|
| Notes Due 2016 [1] |
|
|
| Schedule of Related Party Transactions, Long-Term Debt [Line Items] |
|
|
| Debt Instrument, Issuance Date |
Dec. 09, 2013 |
|
| Debt Instrument, Interest Rate, Stated Percentage |
4.75% |
|
| Debt Instrument, Maturity Date |
Dec. 31, 2016 |
|
| Long-term Debt |
630.9 |
|
| Predecessor [Member] |
|
|
| Schedule of Related Party Transactions, Long-Term Debt [Line Items] |
|
|
| Long-term Debt |
|
1,588.7 |
| Predecessor [Member] | Notes Due 2015 |
|
|
| Schedule of Related Party Transactions, Long-Term Debt [Line Items] |
|
|
| Long-term Debt |
|
115.9 |
| Predecessor [Member] | Notes Due 2016 |
|
|
| Schedule of Related Party Transactions, Long-Term Debt [Line Items] |
|
|
| Long-term Debt |
|
45.3 |
| Predecessor [Member] | Notes Due 2025 |
|
|
| Schedule of Related Party Transactions, Long-Term Debt [Line Items] |
|
|
| Long-term Debt |
|
133.5 |
| Predecessor [Member] | Notes Due 2032 |
|
|
| Schedule of Related Party Transactions, Long-Term Debt [Line Items] |
|
|
| Long-term Debt |
|
45.0 |
| Predecessor [Member] | Notes Due 2037 |
|
|
| Schedule of Related Party Transactions, Long-Term Debt [Line Items] |
|
|
| Long-term Debt |
|
95.0 |
| Predecessor [Member] | Notes Due 2037 [1] |
|
|
| Schedule of Related Party Transactions, Long-Term Debt [Line Items] |
|
|
| Long-term Debt |
|
55.0 |
| Predecessor [Member] | Notes Due 2042 |
|
|
| Schedule of Related Party Transactions, Long-Term Debt [Line Items] |
|
|
| Long-term Debt |
|
170.0 |
| Predecessor [Member] | Notes Due 2042 [1] |
|
|
| Schedule of Related Party Transactions, Long-Term Debt [Line Items] |
|
|
| Long-term Debt |
|
95.0 |
| Predecessor [Member] | Notes Due 2016 [1] |
|
|
| Schedule of Related Party Transactions, Long-Term Debt [Line Items] |
|
|
| Long-term Debt |
|
$ 834.0 |