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Financing Arrangements - Schedule of Carrying and Fair Values of Senior Notes (Details) - USD ($) $ in Millions	Dec. 31, 2023	Mar. 31, 2023	Feb. 28, 2021	Feb. 29, 2016
Line of Credit Facility [Line Items]
Senior notes	$ 1,881	$ 1,880
2026 Notes
Line of Credit Facility [Line Items]
Long-term debt	400	400		$ 400
2031 Notes
Line of Credit Facility [Line Items]
Long-term debt	750	750	$ 750
2051 Notes
Line of Credit Facility [Line Items]
Long-term debt	750	750	$ 750
Senior Notes
Line of Credit Facility [Line Items]
Long-term debt	1,900	1,900
Debt instrument, unamortized discount (premium), net	(5)	(6)		(1)
Unamortized debt issuance costs	(14)	(14)		$ (4)
Fair value of Senior Notes (Level 2)	$ 1,559	$ 1,540