Earnings (Loss) per Common Share - Schedule of Earnings (Loss) per Common Share (Detail) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Numerator:
Net income	$ 79	$ 105	$ 256	$ 540
Denominator:
Weighted average shares used to compute basic EPS	120	139	124	145
Effect of dilutive securities:
Dilutive effect of stock options, restricted stock, restricted stock units, performance stock units, and Employee Stock Purchase Plan ("ESPP")	1	2	1	2
Dilutive potential common shares	1	2	1	2
Weighted average shares used to compute diluted EPS	121	141	125	147
Basic earnings per common share	$ 0.66	$ 0.75	$ 2.06	$ 3.71
Diluted earnings per common share	$ 0.65	$ 0.75	$ 2.04	$ 3.67