LOSS PER SHARE AND STOCKHOLDERS’ EQUITY: Narrative (Details) - USD ($) shares in Millions	9 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Mar. 31, 2021
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Acquisition of treasury stock	$ 49,224,000	$ 42,312,000
Treasury stock, at cost	2,089,958,000		$ 2,026,518,000
Accumulated other comprehensive income (loss), foreign currency translation adjustment	5,900,000		$ 7,500,000
Common Stock Repurchase Program
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Stock repurchase program, authorized amount	$ 1,000,000,000
Acquisition of treasury stock (in shares)	1.1
Acquisition of treasury stock	$ 49,200,000
Treasury stock, at cost (in shares)	29.4
Treasury stock, at cost	$ 722,800,000
Stock repurchase program, remaining amount	$ 277,200,000