Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Millions	6 Months Ended
	Sep. 30, 2018	Sep. 30, 2017
Operating activities:
Net income	$ 295	$ 362
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	163	190
Deferred income taxes	(12)	(23)
Provision for bad debts	0	2
Share-based compensation expense	68	61
Other non-cash items	5	2
Foreign currency transaction (gains) losses	(4)	9
Changes in other operating assets and liabilities, net of effect of acquisitions:
Decrease in trade accounts receivable	279	317
Increase in contract assets	(26)	0
Decrease in contract costs	18	0
Decrease in deferred revenue and advanced payments	(314)	(460)
Decrease in taxes payable, net	(258)	(58)
Increase in accounts payable, accrued expenses and other	33	11
Decrease in accrued salaries, wages and commissions	(34)	(81)
Changes in other operating assets and liabilities, net	38	3
Net cash provided by operating activities	251	335
Investing activities:
Acquisitions of businesses, net of cash acquired, and purchased software	(25)	(15)
Purchases of property and equipment	(24)	(22)
Other investing activities	(1)	(1)
Net cash used in investing activities	(50)	(38)
Financing activities:
Dividends paid	(214)	(215)
Purchases of common stock	(80)	(90)
Notional pooling borrowings	1,076	1,173
Notional pooling repayments	(1,053)	(1,204)
Debt repayments	(259)	(9)
Debt issuance costs	0	(3)
Exercise of common stock options	21	5
Payments related to tax withholding for share-based compensation	(40)	(35)
Other financing activities	(9)	(3)
Net cash used in financing activities	(558)	(381)
Effect of exchange rate changes on cash, cash equivalents and restricted cash	(118)	136
(Decrease) increase in cash, cash equivalents and restricted cash	(475)	52
Cash, cash equivalents and restricted cash at beginning of period	3,407	2,772
Cash, cash equivalents and restricted cash at end of period	$ 2,932	$ 2,824