Description Of Business And Basis Of Presentation Narrative (Details) - USD ($)	3 Months Ended	9 Months Ended
	Dec. 31, 2021	Dec. 31, 2021
FY21 Change in Estimated Offering Period [Member]
Change in Accounting Estimate [Line Items]
Increase in Net Revenue due to Change in Estimated Offering Period	$ 153,000,000	$ 255,000,000
Increase in Net Income due to Change in Estimated Offering Period	117,000,000	194,000,000
Increase in Diluted Earnings Per Share due to Change in Estimated Offering Period	0.41	0.68
FY22 Change in Estimated Offering Period [Member]
Change in Accounting Estimate [Line Items]
Decrease in Net Revenue due to Change in Estimated Offering Period	45,000,000	62,000,000
Decrease in Net Income due to Change in Estimated Offering Period	34,000,000	47,000,000
Decrease in Diluted Earnings Per Share due to Change in Estimated Offering Period	$ 0.12	$ 0.16