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Debt - Principal Terms of Senior and Junior Subordinated Notes (Details) | Dec. 31, 2021 USD ($)
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Senior notes | 2024 Senior Notes |
Debt Instrument [Line Items] |
Par value | $ 400,000,000.0
Stated coupon | 4.25%
Senior notes | 2025 Senior Notes |
Debt Instrument [Line Items] |
Par value | $ 350,000,000.0
Stated coupon | 3.50%
Senior notes | 2030 Senior Notes |
Debt Instrument [Line Items] |
Par value | $ 350,000,000.0
Stated coupon | 3.30%
Junior subordinated notes | 2059 Junior Subordinated Notes |
Debt Instrument [Line Items] |
Par value | $ 300,000,000.0
Stated coupon | 5.875%
Junior subordinated notes | 2060 Junior Subordinated Notes |
Debt Instrument [Line Items] |
Par value | $ 275,000,000.0
Stated coupon | 4.75%
Junior subordinated notes | 2061 Junior Subordinated Notes |
Debt Instrument [Line Items] |
Par value | $ 200,000,000.0
Stated coupon | 4.20%

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