Income Taxes - Schedule of Domestic and Foreign Pretax Income From Continuing Operations (Details) - USD ($) $ in Millions	12 Months Ended
	Jan. 31, 2026	Jan. 31, 2025	Jan. 31, 2024
Income Tax Disclosure [Abstract]
Domestic	$ 637	$ 392	$ 406
Foreign	966	992	730
Total pretax income	$ 1,603	$ 1,384	$ 1,136