Debt - Summary of Issuances and Redemptions of Senior Notes (Parenthetical) (Detail) € in Millions, $ in Millions	12 Months Ended
Dec. 31, 2020 USD ($)	Dec. 31, 2020 EUR (€)
Debt Instrument [Line Items]
Amount of funds invested in sustainable and environmentally beneficial projects	$ 1,500.0
May 2021 Senior Notes [Member] \| EUR
Debt Instrument [Line Items]
Repayments of Senior Debt	$ 783.1	€ 700.0
Debt Instrument maturity date	2021-05	2021-05
January 2022 Senior Notes [Member] \| EUR
Debt Instrument [Line Items]
Debt Instrument maturity date	2022-01	2022-01
January 2022 Senior Notes [Member] \| JPY
Debt Instrument [Line Items]
Repayments of Senior Debt	$ 238.1	€ 212.6
Debt Instrument maturity date	2022-01	2022-01
February 2024 Senior Notes [Member] \| EUR
Debt Instrument [Line Items]
Repayments of Senior Debt	$ 112.5	€ 100.5
Debt Instrument maturity date	2024-02	2024-02
August 2023 Senior Notes [Member] \| USD
Debt Instrument [Line Items]
Repayments of Senior Debt	$ 850.0
Debt Instrument maturity date	2023-08	2023-08
Liberty Transaction [Member] \| Senior Notes [Member]
Debt Instrument [Line Items]
Repayments of assumed debt	$ 1,800.0

Debt instrument maturity month and year.

No definition available.

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- Definition

Investment in sustainable and environmentally beneficial projects.

+ References

No definition available.

+ Details

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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

The cash outflow from the repayments of a long-term debt originally issued by another party but is assumed by the entity.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 15
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=121586364&loc=d3e3291-108585

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- Definition

The cash outflow for a long-term debt where the holder has highest claim on the entity's asset in case of bankruptcy or liquidation during the period.

+ References

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