Convertible debt shares per $1,000 principal amount

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- Definition

debt instrument net proceeds

+ References

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- Definition

debt issuance cost write off

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- Definition

debt repurchase allocation - Debt portion

+ References

No definition available.

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- Definition

Debt repurchase allocation - Equity portion

+ References

No definition available.

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- Definition

loss on extinguishment of debt

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- Definition

Carrying amount of long-term convertible debt as of the balance sheet date, net of the amount due in the next twelve months or greater than the normal operating cycle, if longer. The debt is convertible into another form of financial instrument, typically the entity's common stock.

+ References

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- Definition

The carrying amount of the equity component of convertible debt which may be settled in cash upon conversion.

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- Definition

The price per share of the conversion feature embedded in the debt instrument.

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- Definition

Face (par) amount of debt instrument at time of issuance.

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- Definition

Contractual interest rate for funds borrowed, under the debt agreement.

+ References

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- 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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- Definition

Fair value amount of debt instrument that was repurchased.

+ References

No definition available.

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- Definition

Face (par) amount of the original debt instrument that was repurchased.

+ References

No definition available.

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- Definition

Amount of debtor-in-possession borrowings outstanding.

+ References

No definition available.

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- Definition

The cash outflow from the repayment of a long-term debt instrument which can be exchanged for a specified amount of another security, typically the entity's common stock, at the option of the issuer or the holder.

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- Definition

The cash outflow during the period from the repayment of aggregate short-term and long-term debt. Excludes payment of capital lease obligations.

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- Definition

Number of shares that have been repurchased and retired during the period.

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Equity impact of the value of stock that has been repurchased during the period and has not been retired and is not held in treasury. Some state laws may mandate the circumstances under which an entity may acquire its own stock and prescribe the accounting treatment therefore. This element is used when state law does not recognize treasury stock.

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- Definition

Unamortized Loss on Reacquired Debt is the loss incurred upon reacquisition or refinancing of debt, is treated as a deferred charge and amortized over the life of the new debt issued.

+ References

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Debt and Credit Facilities 1.25% Convertible Debentures due 2025 (Details) - USD ($) $ / shares in Units, $ in Millions	1 Months Ended		3 Months Ended				6 Months Ended		83 Months Ended
	Mar. 31, 2020	Nov. 30, 2017	Mar. 31, 2020	Mar. 31, 2019	Jun. 30, 2015	Dec. 31, 2014	Mar. 31, 2020	Mar. 31, 2019	Mar. 31, 2020	Sep. 30, 2019	Mar. 13, 2017	Jun. 01, 2015	Oct. 24, 2011
Debt Instrument [Line Items]
Debt Instrument, Face Amount	$ 1,896.5		$ 1,896.5				$ 1,896.5		$ 1,896.5	$ 2,137.0
Stock Repurchased and Retired During Period, Shares			3,800,000	1,200,000			9,500,000	6,100,000	73,800,000
Stock Repurchased During Period, Value			$ 76.8	$ 16.2			$ 169.2	$ 91.3	$ 1,238.8
Convertible Debentures 1.25% Due 2025 [Member]
Debt Instrument [Line Items]
Convertible Debt, Noncurrent											$ 252.1
Debt Instrument, Face Amount											$ 350.0
Debt Instrument, Interest Rate, Stated Percentage	1.25%		1.25%				1.25%		1.25%	1.25%	1.25%
debt instrument net proceeds											$ 343.6
Debt Instrument, Convertible, Carrying Amount of Equity Component											$ 97.9
Debt Instrument, Convertible, Conversion Price											$ 19.69
Debt Instrument, Repurchased Face Amount	$ 87.3		$ 87.3				$ 87.3		$ 87.3
Debt Instrument, Repurchase Amount	112.3		112.3				112.3		112.3
debt repurchase allocation - Debt portion	72.8		72.8				72.8		72.8
Debt repurchase allocation - Equity portion	39.5		39.5				39.5		39.5
Unamortized Loss Reacquired Debt, Noncurrent	16.7		16.7				16.7		16.7
debt issuance cost write off	0.7		0.7				0.7		0.7
loss on extinguishment of debt	2.8		2.8				2.8		2.8
Debtor-in-Possession Financing, Borrowings Outstanding	262.7		262.7				262.7		262.7
Convertible Debentures Two Point Seven Five Percent Due November One Twenty Thirty One [Member]
Debt Instrument [Line Items]
Convertible Debt, Noncurrent													$ 533.6
Debt Instrument, Face Amount	$ 46.6		$ 46.6				$ 46.6		$ 46.6			$ 395.5	$ 690.0
Debt Instrument, Interest Rate, Stated Percentage	2.75%		2.75%				2.75%		2.75%	2.75%			2.75%
debt instrument net proceeds													$ 676.1
Repayments of Convertible Debt					$ 256.2	$ 38.3
Repayments of Debt	$ 46.6	$ 331.2
Debt Instrument, Convertible, Carrying Amount of Equity Component													156.4
Debt Instrument, Repurchased Face Amount													$ 38.3
Before auto spin-off [Member] \| Convertible Debentures 1.25% Due 2025 [Member]
Debt Instrument [Line Items]
Convertible debt shares per $1,000 principal amount											45.0106
After auto spin-off [Member] \| Convertible Debentures 1.25% Due 2025 [Member]
Debt Instrument [Line Items]
Convertible debt shares per $1,000 principal amount											50.7957