Information about Geographic Areas and Products - Subscription Revenues (Detail) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Segment Reporting Information [Line Items]
Subscription revenues	$ 2,096	$ 1,722
Digital workflow products
Segment Reporting Information [Line Items]
Subscription revenues	1,790	1,440
ITOM products
Segment Reporting Information [Line Items]
Subscription revenues	234	191
Total subscription revenues
Segment Reporting Information [Line Items]
Subscription revenues	$ 2,024	$ 1,631