Weighted average number of diluted shares.

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- Definition

The amount of net income (loss) for the period per each share of common stock or unit outstanding during the reporting period.

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- Definition

The amount of net income (loss) for the period available to each share of common stock or common unit outstanding during the reporting period and to each share or unit that would have been outstanding assuming the issuance of common shares or units for all dilutive potential common shares or units outstanding during the reporting period.

+ References

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- Definition

Additional shares included in the calculation of diluted EPS as a result of the potentially dilutive effect of share based payment arrangements using the treasury stock method.

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- Definition

The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.

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- Definition

Number of [basic] shares or units, after adjustment for contingently issuable shares or units and other shares or units not deemed outstanding, determined by relating the portion of time within a reporting period that common shares or units have been outstanding to the total time in that period.

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Net Income (Loss) Per Share - Computation of Basic and Diluted Net Income (Loss) Per Share (Detail) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	3 Months Ended						9 Months Ended
	Sep. 30, 2024	Jun. 30, 2024	Mar. 31, 2024	Sep. 30, 2023	Jun. 30, 2023	Mar. 31, 2023	Sep. 30, 2024	Sep. 30, 2023
Numerator:
Net Income (Loss)	$ 62	$ 23	$ 15	$ 39	$ (1,769)	$ (42)	$ 99	$ (1,772)
Denominator:
Shares used in net income (loss) per common share - basic	67.4			66.9			67.2	66.8
Effect of dilutive securities	0.2			0.2			0.3	0.0
Shares used in net income (loss) per common share - diluted	67.6			67.1			67.5	66.8
Net income (loss) per common share:
Basic	$ 0.92			$ 0.59			$ 1.48	$ (26.53)
Net income (loss) per common share:
Diluted	$ 0.92			$ 0.58			$ 1.47	$ (26.53)