Goodwill (Details) - USD ($) $ in Millions	9 Months Ended
	Oct. 31, 2025	Jan. 31, 2025
Goodwill [Roll Forward]
Goodwill net, beginning of the period	$ 4,242
Effect of foreign currency translation	36
Goodwill net, end of the period	4,278
Accumulated impairment losses	$ 149	$ 149