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Commitments and Contingencies Investments Contractual Obligations (Tables)

12 Months Ended

Dec. 31, 2020

Commitments and Contingencies Disclosure [Abstract]

Investments Classified by Contractual Maturity Date [Table Text Block]

($ in millions)						Amount of Obligation						Year of Expiration of Obligation
Alternative and other investments						$	215.7					2036
Non-publicly traded collateralized loan obligations in our fixed income securities portfolio						37.7						2030
Non-publicly traded common stock within our equity portfolio						2.0						2021
Commercial mortgage loans						4.4						Less than 1 year
Total						$	259.8

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Tabular disclosure of commitments that may require us to invest additional amounts into our investment portfolio.

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