Stock-Based Compensation Plans Stock-Based Compensation Plans (Schedule Of Future Share-Based Compensation Cost) (Details) $ in Millions	Sep. 30, 2023 USD ($)
Share -based Compensation Arrangement by Share-based Payment Award [Line Items]
2023	$ 9.9
2024	38.2
2025	9.2
2026	3.6
2027	0.1
Total	$ 61.0

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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+ Details