Stock-Based Compensation (Stock Option Activity) (Details) - USD ($) $ in Millions	12 Months Ended
Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Share-based Payment Arrangement [Abstract]
Total intrinsic value of stock options exercised	$ 12	$ 32	$ 31
Cash received from stock option exercises	12	47	54
Income tax benefit from the exercise of stock options	3	8	7
Total fair value of stock options vested	$ 16	$ 11	$ 11

Share Based Compensation Arrangement by Share Based Payment Award, Fair Value of Awards Vested

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- References

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Amount of tax benefit from exercise of option under share-based payment arrangement.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
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Amount of cash inflow from exercise of option under share-based payment arrangement.

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-Topic 718
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Amount of accumulated difference between fair value of underlying shares on dates of exercise and exercise price on options exercised (or share units converted) into shares.

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