CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Millions	6 Months Ended
	Sep. 30, 2021	Sep. 30, 2020
Cash flows from operating activities:
Net income	$ 494.8	$ 197.2
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	549.7	578.6
Deferred income taxes	(11.2)	(48.1)
Share-based compensation expense related to equity incentive plans	112.3	92.1
Loss on settlement of debt	85.5	71.9
Amortization of debt discount	24.2	43.1
Amortization of debt issuance costs	6.4	9.0
Other non-cash adjustment	(3.9)	(0.2)
Changes in operating assets and liabilities, excluding impact of acquisitions:
Decrease in accounts receivable	12.1	30.3
(Increase) decrease in inventories	(49.8)	21.4
Increase (decrease) in accounts payable and accrued liabilities	3.3	(34.6)
Change in other assets and liabilities	39.1	18.6
Change in income tax payable	(20.9)	(21.7)
Net cash provided by operating activities	1,241.6	957.6
Cash flows from investing activities:
Proceeds from sales of assets	12.2	0.2
Investments in other assets	(56.1)	(43.0)
Capital expenditures	(164.8)	(15.8)
Net cash used in investing activities	(208.7)	(58.6)
Cash flows from financing activities:
Proceeds from issuance of senior notes	997.0	2,182.0
Repayment of senior notes	(1,000.0)	0.0
Repayment of Bridge Loan Facility	0.0	(615.0)
Payments on settlement of convertible debt	(263.6)	(1,823.3)
Deferred financing costs	(2.6)	(6.8)
Payment of cash dividends	(234.3)	(185.7)
Proceeds from sale of common stock	33.4	29.6
Tax payments related to shares withheld for vested RSUs	(49.1)	(25.4)
Capital lease payments	(0.4)	(0.4)
Net cash used in financing activities	(1,059.6)	(931.7)
Net decrease in cash and cash equivalents	(26.7)	(32.7)
Cash and cash equivalents, and restricted cash at beginning of period	280.0	401.0
Cash and cash equivalents, and restricted cash at end of period	253.3	368.3
Revolving Credit Facility
Cash flows from financing activities:
Proceeds from borrowings on Revolving Credit Facility	1,945.0	2,204.0
Repayments of line of credit	(2,485.0)	(2,672.9)
Term Loan Facility
Cash flows from financing activities:
Repayments of line of credit	$ 0.0	$ (17.8)