Weighted average number of diluted shares.

No definition available.

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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.

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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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Net Income Per Share - Computation of Basic and Diluted Net Income Per Share (Detail) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	3 Months Ended				6 Months Ended
	Jun. 30, 2026	Mar. 31, 2026	Jun. 30, 2025	Mar. 31, 2025	Jun. 30, 2026	Jun. 30, 2025
Numerator:
Net income	$ 175	$ 84	$ 62	$ 52	$ 258	$ 114
Denominator:
Shares used in net income per share - basic	67.6		67.2		67.5	67.3
Shares used in net income per common share - diluted	72.7		67.4		71.9	67.5
Net income per share:
Basic	$ 2.59		$ 0.92		$ 3.83	$ 1.69
Net income per share:
Diluted	$ 2.41		$ 0.92		$ 3.6	$ 1.69
Equity Awards [Member]
Denominator:
Dilutive effect of potential shares	0.6		0.2		0.7	0.2
Convertible Notes [Member]
Denominator:
Dilutive effect of potential shares	4.5				3.7