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Fair Value Measurements (Tables)
12 Months Ended
Mar. 31, 2023
Fair Value Disclosures [Abstract]  
Schedule of Carrying Values and Estimated Fair Values of Debt Instruments
The Company’s long-term debt is recorded at amortized cost. The carrying value and fair value of the Company’s long-term debt was as follows:
March 31, 2023March 31, 2022
(In millions)Carrying ValueFair ValueCarrying ValueFair Value
Long-term debt, including current maturities$5,594 $5,386 $5,879 $5,999