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Financial Information for Subsidiary and Guarantor Parent (Cash Flow) (Details) (USD $) In Millions, unless otherwise specified | 6 Months Ended
--- | ---
Jun. 30, 2013 | Jun. 30, 2012
Statement of Cash Flows |  |
Increase (decrease) in cash and cash equivalents | $ (230.5) | $ (170.3)
Financing Activities: |  |
OtherFinancingActivities | (26.9) | (27.1)
NetReceiptsPaymentsOnIntercompanyActivity | 0 | 0
Dividends paid to shareholders | (38.4) | (38.2)
Cash provided by (used in) financing activities 1 | (65.3) | (65.3)
Investing Activities: |  |
Purchases of property, plant and equipment | (223.7) | (165.7)
Asset disposals and other | 0.5 | 0.9
Cash provided by (used in) investing activities | (223.2) | (164.8)
Net cash flows provided by (used in) operating activities from continuing operations | 58.0 | 59.8
[ParentCompanyMember] |  |
Statement of Cash Flows |  |
Increase (decrease) in cash and cash equivalents | (2.6) | 3.7
Financing Activities: |  |
OtherFinancingActivities | (21.7) | (21.6)
NetReceiptsPaymentsOnIntercompanyActivity | 78.7 | 90.2
Dividends paid to shareholders | (38.4) | (38.2)
Cash provided by (used in) financing activities 1 | 18.6 | 30.4
Investing Activities: |  |
Purchases of property, plant and equipment | (0.1) | (0.8)
Asset disposals and other | 0 | 0
Cash provided by (used in) investing activities | (0.1) | (0.8)
Net cash flows provided by (used in) operating activities from continuing operations | (21.1) | (25.9)
[SubsidiariesMember] |  |
Statement of Cash Flows |  |
Increase (decrease) in cash and cash equivalents | (8.4) | (119.4)
Financing Activities: |  |
OtherFinancingActivities | (0.1) | (0.1)
NetReceiptsPaymentsOnIntercompanyActivity | 141.7 | 5.8
Dividends paid to shareholders | 0 | 0
Cash provided by (used in) financing activities 1 | 141.6 | 5.7
Investing Activities: |  |
Purchases of property, plant and equipment | (201.7) | (127.9)
Asset disposals and other | 0.1 | 0.2
Cash provided by (used in) investing activities | (201.6) | (127.7)
Net cash flows provided by (used in) operating activities from continuing operations | 51.6 | 2.6
[NonGuarantorSubsidiariesMember] |  |
Statement of Cash Flows |  |
Increase (decrease) in cash and cash equivalents | (219.5) | (54.6)
Financing Activities: |  |
OtherFinancingActivities | (5.1) | (5.4)
NetReceiptsPaymentsOnIntercompanyActivity | (220.4) | (96.0)
Dividends paid to shareholders | 0 | 0
Cash provided by (used in) financing activities 1 | (225.5) | (101.4)
Investing Activities: |  |
Purchases of property, plant and equipment | (21.9) | (37.0)
Asset disposals and other | 0.4 | 0.7
Cash provided by (used in) investing activities | (21.5) | (36.3)
Net cash flows provided by (used in) operating activities from continuing operations | 27.5 | 83.1
[ConsolidationEliminationsMember] |  |
Statement of Cash Flows |  |
Increase (decrease) in cash and cash equivalents | 0 | 0
Financing Activities: |  |
OtherFinancingActivities | 0 | 0
NetReceiptsPaymentsOnIntercompanyActivity | 0 | 0
Dividends paid to shareholders | 0 | 0
Cash provided by (used in) financing activities 1 | 0 | 0
Investing Activities: |  |
Purchases of property, plant and equipment | 0 | 0
Asset disposals and other | 0 | 0
Cash provided by (used in) investing activities | 0 | 0
Net cash flows provided by (used in) operating activities from continuing operations | $ 0 | $ 0

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