Debt - Senior Notes and Junior Subordinated Notes (Details)	3 Months Ended
	Mar. 31, 2022
2024 Senior Notes | Senior notes
Debt Instrument [Line Items]
Redemption price percentage	100.00%
2024 Senior Notes | Senior notes | Treasury Rate
Debt Instrument [Line Items]
Applicable basis spread over redemption price percentage	0.25%
2025 Senior Notes | Senior notes
Debt Instrument [Line Items]
Redemption price percentage	100.00%
2025 Senior Notes | Senior notes | Treasury Rate
Debt Instrument [Line Items]
Applicable basis spread over redemption price percentage	0.25%
2030 Senior Notes | Senior notes
Debt Instrument [Line Items]
Redemption price percentage	100.00%
2030 Senior Notes | Senior notes | Treasury Rate
Debt Instrument [Line Items]
Applicable basis spread over redemption price percentage	0.40%
5.875% Junior Subordinated Notes due 2059 | Junior subordinated notes | On or after September 30, 2026
Debt Instrument [Line Items]
Redemption price percentage	100.00%
5.875% Junior Subordinated Notes due 2059 | Junior subordinated notes | If changes in tax laws and interpretations occur
Debt Instrument [Line Items]
Redemption price percentage	100.00%
5.875% Junior Subordinated Notes due 2059 | Junior subordinated notes | If a rating agency makes certain changes relating to the equity credit criteria for securities
Debt Instrument [Line Items]
Redemption price percentage	102.00%
4.750% Junior Subordinated Notes due 2060 | Junior subordinated notes | On or after September 30, 2026
Debt Instrument [Line Items]
Redemption price percentage	100.00%
4.750% Junior Subordinated Notes due 2060 | Junior subordinated notes | If changes in tax laws and interpretations occur
Debt Instrument [Line Items]
Redemption price percentage	100.00%
4.750% Junior Subordinated Notes due 2060 | Junior subordinated notes | If a rating agency makes certain changes relating to the equity credit criteria for securities
Debt Instrument [Line Items]
Redemption price percentage	102.00%
4.200% Junior Subordinated Notes due 2061 | Junior subordinated notes | On or after September 30, 2026
Debt Instrument [Line Items]
Redemption price percentage	100.00%
4.200% Junior Subordinated Notes due 2061 | Junior subordinated notes | If changes in tax laws and interpretations occur
Debt Instrument [Line Items]
Redemption price percentage	100.00%
4.200% Junior Subordinated Notes due 2061 | Junior subordinated notes | If a rating agency makes certain changes relating to the equity credit criteria for securities
Debt Instrument [Line Items]
Redemption price percentage	102.00%