Debt instrument maturity year.

No definition available.

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- Definition

Pre-tax charge in result of redemption.

+ References

No definition available.

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- Definition

Proceeds from sales of business, net.

+ References

No definition available.

+ Details

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- Definition

Redemption rate of senior notes equal to principal amount plus premium and accrued and unpaid interest.

+ References

No definition available.

+ Details

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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.

+ Details

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- Definition

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

+ References

No definition available.

+ Details

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- Definition

Amount of consideration received or receivable for the disposal of assets and liabilities, including discontinued operation.

+ References

No definition available.

+ Details

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- 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
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Balance Type:	credit
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- Definition

The cash outflow for debt initially having maturity due after one year or beyond the normal operating cycle, if longer.

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- Definition

Write-off of amounts previously capitalized as debt issuance cost in an extinguishment of debt.

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Long-term Debt and Other Financing Arrangements - Additional Information (Detail) - USD ($) $ in Millions					3 Months Ended		12 Months Ended
	Apr. 10, 2021	Mar. 21, 2021	Mar. 16, 2021	Mar. 05, 2021	Jun. 30, 2021	Mar. 31, 2021	Dec. 31, 2020	Oct. 31, 2020
Debt Instrument [Line Items]
Debt instrument remaining outstanding amount						$ 6,658.0	$ 6,862.0
Redemption rate of senior notes equal to principal amount plus premium and accrued and unpaid interest			100.00%
March 2021 Redemptions
Debt Instrument [Line Items]
Wrote-off certain previously deferred financing fees						$ 7.5
March 2021 Redemptions \| Scenario Forecast
Debt Instrument [Line Items]
Pre-tax charge in result of redemption					$ 1.0
Senior Secured Term Loan Facility Due 2023
Debt Instrument [Line Items]
Prepayment of term loan			$ 1,000.0
Debt instrument, maturity year			2023
Debt instrument remaining outstanding amount			$ 2,600.0
Senior Secured Term Loan Facility Due 2025
Debt Instrument [Line Items]
Prepayment of term loan			$ 300.0
Debt instrument, maturity year			2023
Debt instrument remaining outstanding amount			$ 1,000.0
Senior Debenture Loan Due 2021
Debt Instrument [Line Items]
Debt instrument, maturity year		2021				2021	2021
Debt instrument remaining outstanding amount							$ 150.0
Debt instrument redeemed principal amount		$ 150.0
Debt instrument interest rate stated percentage		5.50%				5.50%	5.50%
Redemption rate of senior notes equal to principal amount plus premium and accrued and unpaid interest		100.00%
Senior Debenture Loan Due 2022
Debt Instrument [Line Items]
Debt instrument, maturity year						2022	2022
Debt instrument remaining outstanding amount						$ 824.0	$ 824.0
Debt instrument interest rate stated percentage						5.00%	5.00%
Senior Debenture Loan Due 2022 \| Subsequent Event
Debt Instrument [Line Items]
Debt instrument, maturity year	2022
Debt instrument redeemed principal amount	$ 825.0
Debt instrument interest rate stated percentage	5.00%
Redemption rate of senior notes equal to principal amount plus premium and accrued and unpaid interest	100.00%
Connect \| Advent
Debt Instrument [Line Items]
Cash proceeds on sale of business								$ 2,700.0
Net proceeds from sale of business				$ 2,400.0