Stock-Based Compensation - Schedule of Share Repurchases (Details) - USD ($) shares in Millions, $ in Millions	3 Months Ended				9 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Sep. 30, 2022	Jun. 30, 2022	Dec. 31, 2023	Dec. 31, 2022
Equity, Class of Treasury Stock [Line Items]
Stock repurchased and retired during period, value	$ 325	$ 325	$ 325	$ 320	$ 975	$ 970
Stock repurchased and retired during period, shares	2.5	2.6			7.6	7.7
November 2020 Program
Equity, Class of Treasury Stock [Line Items]
Stock repurchased and retired during period, value	$ 0	$ 5			$ 0	$ 650
Stock repurchased and retired during period, shares	0.0	0.0			0.0	5.1
August 2022 Program
Equity, Class of Treasury Stock [Line Items]
Stock repurchased and retired during period, value	$ 325	$ 320			$ 975	$ 320
Stock repurchased and retired during period, shares	2.5	2.6			7.6	2.6