Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Millions	9 Months Ended
	Dec. 31, 2017	Dec. 31, 2016
Operating activities:
Net income	$ 269	$ 618
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	284	238
Deferred income taxes	41	(20)
Provision for bad debts	1	3
Share-based compensation expense	89	80
Other non-cash items	3	4
Foreign currency transaction losses (gains)	3	(5)
Changes in other operating assets and liabilities, net of effect of acquisitions:
Decrease in trade accounts receivable	58	57
Decrease in deferred revenue	(334)	(332)
Increase (decrease) in taxes payable, net	220	(21)
Increase in accounts payable, accrued expenses and other	20	13
Decrease in accrued salaries, wages and commissions	(44)	(12)
Changes in other operating assets and liabilities, net	40	35
Net cash provided by operating activities	650	658
Investing activities:
Acquisitions of businesses, net of cash acquired, and purchased software	(15)	(48)
Purchases of property and equipment	(34)	(30)
Other investing activities	(2)	(1)
Net cash used in investing activities	(51)	(79)
Financing activities:
Dividends paid	(321)	(321)
Purchases of common stock	(143)	(100)
Notional pooling borrowings	1,581	1,391
Notional pooling repayments	(1,612)	(1,365)
Debt repayments	(14)	(5)
Debt issuance costs	(3)	0
Exercise of common stock options	5	22
Payments related to tax withholding for share-based compensation	(35)	(34)
Other financing activities	(3)	0
Net cash used in financing activities	(545)	(412)
Effect of exchange rate changes on cash, cash equivalents and restricted cash	148	(151)
Increase in cash, cash equivalents and restricted cash	202	16
Cash, cash equivalents and restricted cash at beginning of period	2,772	2,813
Cash, cash equivalents and restricted cash at end of period	$ 2,974	$ 2,829