Stockholders' Equity - Narrative (Details)		1 Months Ended	3 Months Ended	12 Months Ended
	Mar. 09, 2020 shares	Jul. 31, 2021 $ / shares	Jun. 30, 2021 $ / shares	Mar. 31, 2022 vote $ / shares	Mar. 31, 2021 $ / shares	Mar. 31, 2020 $ / shares	Mar. 10, 2020 $ / shares shares
Dividends Payable [Line Items]
Number of votes | vote				1
Cash dividends declared per common share (in dollars per share) | $ / shares		$ 0.47	$ 0.42	$ 1.83	$ 1.67	$ 1.62
Common stock, par value (in dollars per share) | $ / shares				$ 0.01	$ 0.01
Change Healthcare
Dividends Payable [Line Items]
Shares repurchased (in shares)	15,400,000
Separation of Change Healthcare JV
Dividends Payable [Line Items]
Shares distributed to stockholders (in shares)	176,000,000
Shares of common stock exchanged (in shares)	15,400,000
Number of shares converted into per share converted (shares)							1
Common stock, par value (in dollars per share) | $ / shares							$ 0.001