Debt - Schedule of Future Debt Principal Repayments (Details) - USD ($) $ in Millions	Mar. 31, 2026	Mar. 31, 2025
Interest on indebtedness
Total	$ 1,017
2027	198
2028	176
2029	146
2030	120
2031	106
Thereafter	271
Total
Total	4,981
2027	217
2028	908
2029	883
2030	658
2031	744
Thereafter	1,571
Line of Credit \| Credit Agreement \| Term Loan A-1
Long-term debt, gross
Total	714	$ 1,526
2027	0
2028	714
2029	0
2030	0
2031	0
Thereafter	0
Line of Credit \| Credit Agreement \| Term Loan A-2
Long-term debt, gross
Total	750	0
2027	19
2028	18
2029	37
2030	38
2031	638
Thereafter	0
Senior Notes \| Senior Notes due 2028
Long-term debt, gross
Total	700	700
2027	0
2028	0
2029	700
2030	0
2031	0
Thereafter	0
Senior Notes \| Senior Notes due 2029
Long-term debt, gross
Total	500	500
2027	0
2028	0
2029	0
2030	500
2031	0
Thereafter	0
Senior Notes \| Senior Notes due 2033
Long-term debt, gross
Total	650	650
2027	0
2028	0
2029	0
2030	0
2031	0
Thereafter	650
Senior Notes \| Senior Notes due 2035
Long-term debt, gross
Total	650	$ 650
2027	0
2028	0
2029	0
2030	0
2031	0
Thereafter	$ 650

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