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Shareholders' Equity (Common Stock Issued With The Exercise Of Stock Options (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Stockholders' Equity Note [Abstract]
Shares issued (in shares)	1.0	1.1	0.4
Proceeds from the exercise of stock options	$ 54.5	$ 52.7	$ 12.7
Average exercise price per share (in dollars per share)	$ 53.13	$ 49.91	$ 33.87

X

- Definition

Amount of cash inflow from exercise of option under share-based payment arrangement.

+ References

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X

- Definition

Weighted average price at which option holders acquired shares when converting their stock options into shares.

+ References

No definition available.

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- Definition

Number of share options (or share units) exercised during the current period.

+ References

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