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Retirement Benefits - Narrative (Details) $ in Millions	3 Months Ended
	Mar. 31, 2023 USD ($)
Defined Benefit Plan Disclosure [Line Items]
Contributions by employer	$ 1.3
Pension Benefits
Defined Benefit Plan Disclosure [Line Items]
Expected contribution for next fiscal year	3.9
Other Postretirement Benefits
Defined Benefit Plan Disclosure [Line Items]
Expected contribution for next fiscal year	$ 1.1

X

- Definition

Amount of contribution received by defined benefit plan from employer which increases plan assets.

+ References

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