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Commitments, Contingencies and Off-Balance Sheet Arrangements - Contractual Obligations (Detail) $ in Millions | Mar. 31, 2025 USD ($)
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Senior Notes [Member] |
Commitments Contingencies And Off Balance Sheet Arrangements [Line Items] |
Contractual Obligations, Payments Due by Period, 2027 | $ 750.0
Contractual Obligations, Payments Due by Period, 2029 | 750.0
Contractual Obligations, Payments Due by Period, Thereafter | 8,050.0
Contractual Obligations, Payments Due by Period, Total | 9,550.0
Note Purchase Agreements [Member] |
Commitments Contingencies And Off Balance Sheet Arrangements [Line Items] |
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, 2028 | 200.0
Contractual Obligations, Payments Due by Period, 2029 | 350.0
Contractual Obligations, Payments Due by Period, Thereafter | 1,655.0
Contractual Obligations, Payments Due by Period, Total | 3,523.0
Premium Financing Debt Facility [Member] |
Commitments Contingencies And Off Balance Sheet Arrangements [Line Items] |
Contractual Obligations, Payments Due by Period, 2025 | 152.8
Contractual Obligations, Payments Due by Period, Total | 152.8
Interest On Debt [Member] |
Commitments Contingencies And Off Balance Sheet Arrangements [Line Items] |
Contractual Obligations, Payments Due by Period, 2025 | 433.8
Contractual Obligations, Payments Due by Period, 2026 | 611.5
Contractual Obligations, Payments Due by Period, 2027 | 593.0
Contractual Obligations, Payments Due by Period, 2028 | 539.2
Contractual Obligations, Payments Due by Period, 2029 | 528.5
Contractual Obligations, Payments Due by Period, Thereafter | 6,589.4
Contractual Obligations, Payments Due by Period, Total | 9,295.4
Total Debt Obligations [Member] |
Commitments Contingencies And Off Balance Sheet Arrangements [Line Items] |
Contractual Obligations, Payments Due by Period, 2025 | 786.6
Contractual Obligations, Payments Due by Period, 2026 | 1,251.5
Contractual Obligations, Payments Due by Period, 2027 | 1,821.0
Contractual Obligations, Payments Due by Period, 2028 | 739.2
Contractual Obligations, Payments Due by Period, 2029 | 1,628.5
Contractual Obligations, Payments Due by Period, Thereafter | 16,294.4
Contractual Obligations, Payments Due by Period, Total | 22,521.2
Operating Lease Obligations [Member] |
Commitments Contingencies And Off Balance Sheet Arrangements [Line Items] |
Contractual Obligations, Payments Due by Period, 2025 | 87.7
Contractual Obligations, Payments Due by Period, 2026 | 110.1
Contractual Obligations, Payments Due by Period, 2027 | 88.7
Contractual Obligations, Payments Due by Period, 2028 | 66.5
Contractual Obligations, Payments Due by Period, 2029 | 37.2
Contractual Obligations, Payments Due by Period, Thereafter | 82.3
Contractual Obligations, Payments Due by Period, Total | 472.5
Less Sublease Arrangements [Member] |
Commitments Contingencies And Off Balance Sheet Arrangements [Line Items] |
Contractual Obligations, Payments Receivable by Period, 2025 | (1.7)
Contractual Obligations, Payments Receivable by Period, 2026 | (2.0)
Contractual Obligations, Payments Receivable by Period, 2027 | (1.9)
Contractual Obligations, Payments Receivable by Period, 2028 | (1.3)
Contractual Obligations, Payments Receivable by Period, 2029 | (1.0)
Contractual Obligations, Payments Receivable by Period, Total | (7.9)
Outstanding Purchase Obligations [Member] |
Commitments Contingencies And Off Balance Sheet Arrangements [Line Items] |
Contractual Obligations, Payments Due by Period, 2025 | 102.4
Contractual Obligations, Payments Due by Period, 2026 | 103.6
Contractual Obligations, Payments Due by Period, 2027 | 63.4
Contractual Obligations, Payments Due by Period, 2028 | 38.7
Contractual Obligations, Payments Due by Period, 2029 | 25.6
Contractual Obligations, Payments Due by Period, Thereafter | 54.4
Contractual Obligations, Payments Due by Period, Total | 388.1
Total Contractual Obligations [Member] |
Commitments Contingencies And Off Balance Sheet Arrangements [Line Items] |
Contractual Obligations, Payments Due by Period, 2025 | 975.0
Contractual Obligations, Payments Due by Period, 2026 | 1,463.2
Contractual Obligations, Payments Due by Period, 2027 | 1,971.2
Contractual Obligations, Payments Due by Period, 2028 | 843.1
Contractual Obligations, Payments Due by Period, 2029 | 1,690.3
Contractual Obligations, Payments Due by Period, Thereafter | 16,431.1
Contractual Obligations, Payments Due by Period, Total | $ 23,373.9

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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 -Topic 440 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 6 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482648/440-10-50-6 + Details
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- Definition 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 -Topic 440 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 6 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482648/440-10-50-6 + Details
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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). + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 440 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 6 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482648/440-10-50-6 + Details
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- Definition 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). + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 440 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 6 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482648/440-10-50-6 + Details
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- Definition 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). + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 440 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 6 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482648/440-10-50-6 + Details
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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). + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 440 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 6 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482648/440-10-50-6 + Details
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