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Shareholders' Equity (Narrative) (Details) - New Plan [Member] - USD ($) $ in Millions	Nov. 06, 2025	Apr. 27, 2025
Class of Stock [Line Items]
Stock repurchase program, remaining authorization		$ 81.8
Stock repurchase program, authorized		1,500.0
Subsequent Event [Member]
Class of Stock [Line Items]
Stock repurchase program, remaining authorization	$ 1,300.0
Class A Common Stock [Member]
Class of Stock [Line Items]
Stock repurchase program, authorized		$ 1,500.0

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Amount authorized for purchase of share under share repurchase plan. Includes, but is not limited to, repurchase of stock and unit of ownership.

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