Commitments, Contingencies and Off-Balance Sheet Arrangements - Contractual Obligations (Detail) $ in Millions	Dec. 31, 2022 USD ($)
Senior Notes [Member]
Commitments Contingencies And Off Balance Sheet Arrangements [Line Items]
Contractual Obligations, Payments Due by Period, Thereafter	$ 1,600.0
Contractual Obligations, Payments Due by Period, Total	1,600.0
Note Purchase Agreements [Member]
Commitments Contingencies And Off Balance Sheet Arrangements [Line Items]
Contractual Obligations, Payments Due by Period, 2023	250.0
Contractual Obligations, Payments Due by Period, 2024	475.0
Contractual Obligations, Payments Due by Period, 2025	200.0
Contractual Obligations, Payments Due by Period, 2026	640.0
Contractual Obligations, Payments Due by Period, 2027	478.0
Contractual Obligations, Payments Due by Period, Thereafter	2,205.0
Contractual Obligations, Payments Due by Period, Total	4,248.0
Credit Agreement [Member]
Commitments Contingencies And Off Balance Sheet Arrangements [Line Items]
Contractual Obligations, Payments Due by Period, 2023	60.0
Contractual Obligations, Payments Due by Period, Total	60.0
Premium Financing Debt Facility [Member]
Commitments Contingencies And Off Balance Sheet Arrangements [Line Items]
Contractual Obligations, Payments Due by Period, 2023	241.9
Contractual Obligations, Payments Due by Period, Total	241.9
Interest On Debt [Member]
Commitments Contingencies And Off Balance Sheet Arrangements [Line Items]
Contractual Obligations, Payments Due by Period, 2023	229.0
Contractual Obligations, Payments Due by Period, 2024	212.3
Contractual Obligations, Payments Due by Period, 2025	197.7
Contractual Obligations, Payments Due by Period, 2026	178.8
Contractual Obligations, Payments Due by Period, 2027	160.4
Contractual Obligations, Payments Due by Period, Thereafter	1,408.1
Contractual Obligations, Payments Due by Period, Total	2,386.3
Total Debt Obligations [Member]
Commitments Contingencies And Off Balance Sheet Arrangements [Line Items]
Contractual Obligations, Payments Due by Period, 2023	780.9
Contractual Obligations, Payments Due by Period, 2024	687.3
Contractual Obligations, Payments Due by Period, 2025	397.7
Contractual Obligations, Payments Due by Period, 2026	818.8
Contractual Obligations, Payments Due by Period, 2027	638.4
Contractual Obligations, Payments Due by Period, Thereafter	5,213.1
Contractual Obligations, Payments Due by Period, Total	8,536.2
Operating Lease Obligations [Member]
Commitments Contingencies And Off Balance Sheet Arrangements [Line Items]
Contractual Obligations, Payments Due by Period, 2023	98.6
Contractual Obligations, Payments Due by Period, 2024	84.2
Contractual Obligations, Payments Due by Period, 2025	67.7
Contractual Obligations, Payments Due by Period, 2026	54.3
Contractual Obligations, Payments Due by Period, 2027	41.7
Contractual Obligations, Payments Due by Period, Thereafter	72.6
Contractual Obligations, Payments Due by Period, Total	419.1
Less Sublease Arrangements [Member]
Commitments Contingencies And Off Balance Sheet Arrangements [Line Items]
Contractual Obligations, Payments Receivable by Period, 2023	(0.9)
Contractual Obligations, Payments Receivable by Period, 2024	(0.6)
Contractual Obligations, Payments Receivable by Period, 2025	(0.3)
Contractual Obligations, Payments Receivable by Period, 2026	(0.3)
Contractual Obligations, Payments Receivable by Period, 2027	(0.2)
Contractual Obligations, Payments Receivable by Period, Total	(2.3)
Outstanding Purchase Obligations [Member]
Commitments Contingencies And Off Balance Sheet Arrangements [Line Items]
Contractual Obligations, Payments Due by Period, 2023	117.4
Contractual Obligations, Payments Due by Period, 2024	86.8
Contractual Obligations, Payments Due by Period, 2025	36.1
Contractual Obligations, Payments Due by Period, 2026	16.8
Contractual Obligations, Payments Due by Period, 2027	12.3
Contractual Obligations, Payments Due by Period, Thereafter	14.6
Contractual Obligations, Payments Due by Period, Total	284.0
Total Contractual Obligations [Member]
Commitments Contingencies And Off Balance Sheet Arrangements [Line Items]
Contractual Obligations, Payments Due by Period, 2023	996.0
Contractual Obligations, Payments Due by Period, 2024	857.7
Contractual Obligations, Payments Due by Period, 2025	501.2
Contractual Obligations, Payments Due by Period, 2026	889.6
Contractual Obligations, Payments Due by Period, 2027	692.2
Contractual Obligations, Payments Due by Period, Thereafter	5,300.3
Contractual Obligations, Payments Due by Period, Total	$ 9,237.0

Commitments Contingencies And Off Balance Sheet Arrangements [Line Items]

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Recorded unconditional purchase obligation receivable.

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Recorded unconditional purchase obligation receivable in fifth year.

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Recorded unconditional purchase obligation receivable in fourth year.

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Recorded unconditional purchase obligation receivable in second year.

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Recorded unconditional purchase obligation receivable in third year.

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- Definition

Recorded unconditional purchase obligation receivable within one year.

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- Definition

Amount of the recorded obligation to transfer funds in the future for fixed or minimum amounts or quantities of goods or services at fixed or minimum prices (for example, as in take-or-pay contracts or throughput contracts).

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 440
-SubTopic 10
-Section 50
-Paragraph 6
-URI https://asc.fasb.org/extlink&oid=123406679&loc=d3e25383-109308

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Amount of recorded unconditional purchase obligation maturing after fifth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 440
-SubTopic 10
-Section 50
-Paragraph 6
-URI https://asc.fasb.org/extlink&oid=123406679&loc=d3e25383-109308

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- Definition

Amount of recorded unconditional purchase obligation to be paid in fifth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

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Amount of recorded unconditional purchase obligation to be paid in fourth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

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Amount of recorded unconditional purchase obligation to be paid in second fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

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- Definition

Amount of recorded unconditional purchase obligation to be paid in third fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

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- Definition

Amount of recorded unconditional purchase obligation to be paid in next fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

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