Long-Term Debt, net of Issuance Costs based on application of ASU 2015-03.

No definition available.

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- Definition

Amount equal to the present value (the principal) at the beginning of the lease term of minimum lease payments during the lease term (excluding that portion of the payments representing executory costs such as insurance, maintenance, and taxes to be paid by the lessor, together with any profit thereon) net of payments or other amounts applied to the principal through the balance sheet date.

+ References

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+ Details

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Period Type:	instant

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

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Period Type:	duration

- Definition

Represents the aggregate of total long-term debt, including current maturities and short-term debt.

+ References

No definition available.

+ Details

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Data Type:	xbrli:monetaryItemType
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Period Type:	instant

- Definition

The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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Balance Type:	credit
Period Type:	instant

- Definition

Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
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-Topic 470
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+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Amount of long-term debt and capital lease obligation due after one year or beyond the normal operating cycle, if longer.

+ References

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt, classified as current. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

+ References

+ Details

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- Definition

The remaining balance of debt issuance expenses that were capitalized and are being amortized against income over the lives of the respective bond issues. This does not include the amounts capitalized as part of the cost of the utility plant or asset.

+ References

+ Details

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Long-term Debt Instruments (Details) - USD ($) $ in Millions	Dec. 31, 2018	Mar. 31, 2018	Dec. 31, 2017	Mar. 31, 2017
Debt Instrument [Line Items]
Debt	$ 3,875.5		$ 4,050.8
Current portion of long-term debt	121.6		5.9
Long-term debt and capital lease obligations	3,753.9		4,044.9
Unamortized debt issuance costs	80.7		93.1
Long-Term Debt, net of Issuance Costs	3,686.8		3,969.3
Total Debt Instruments excluding Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Unamortized debt issuance costs	67.1		75.6
Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Line of credit facility, amount outstanding	0.0		0.0
Unamortized debt issuance costs	13.6		17.5
Secured Debt [Member] \| Term Loan A [Member]
Debt Instrument [Line Items]
Long-term debt	83.8		92.5
Secured Debt [Member] \| Term Loan B [Member]
Debt Instrument [Line Items]
Long-term debt	1,511.2		1,526.8
Unsecured Debt [Member] \| 7.75% Notes [Member]
Debt Instrument [Line Items]
Long-term debt	100.0		200.0
Unsecured Debt [Member] \| 6.625% Notes [Member]
Debt Instrument [Line Items]
Long-term debt	450.0		550.0
Unsecured Debt [Member] \| 6.50% Notes [Member]
Debt Instrument [Line Items]
Long-term debt	500.0		500.0	$ 500.0
Unsecured Debt [Member] \| 6.25% Notes Due 2026 [Member]
Debt Instrument [Line Items]
Long-term debt	400.0	$ 400.0	0.0
Unsecured Debt [Member] \| 6.25% Notes due 2025 [Member]
Debt Instrument [Line Items]
Long-term debt	700.0		700.0	$ 700.0
Unsecured Debt [Member] \| 6.25% Notes due 2021 [Member]
Debt Instrument [Line Items]
Long-term debt	0.0		400.0
Foreign Credit Facilities [Member]
Debt Instrument [Line Items]
Line of credit facility, amount outstanding	127.1		53.2
Capital Lease Obligations [Member]
Debt Instrument [Line Items]
Capital lease obligations	$ 3.4		$ 28.3