Income Taxes - Summary of Total Income Tax (Details) - USD ($) $ in Millions	6 Months Ended	12 Months Ended
Jun. 30, 2023	Jun. 30, 2022	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Income Tax Disclosure [Abstract]
Income tax (benefit)/expense allocated to net income	$ 36.2	$ 4.7	$ (78.1)	$ 5.3	$ 18.4
Income tax (benefit)/expense allocated to other comprehensive income			(23.9)	0.3	0.5
Total income tax (benefit)/expense			$ (102.0)	$ 5.6	$ 18.9

Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

Amount of tax expense (benefit) allocated to other comprehensive income (loss).

+ References

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+ Details