CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (unaudited) - USD ($) $ in Millions	3 Months Ended
	Jun. 30, 2020	Jun. 30, 2019
Cash flows from operating activities:
Net (loss) income	$ (199)	$ 168
Adjustments to reconcile net (loss) income to net cash provided by (used in) operating activities:
Depreciation and amortization	496	474
Operating right-of-use expense	156	176
Pension & other post-employment benefits, actuarial & settlement losses	2	0
Share-based compensation	16	18
Loss (gain) on dispositions	4	(8)
Provision for losses on accounts receivable	35	(4)
Unrealized foreign currency exchange gain	(11)	(14)
Other non-cash charges, net	7	(1)
Changes in assets and liabilities, net of effects of acquisitions and dispositions:
Increase in assets	(100)	(335)
Decrease in operating lease liability	(156)	(174)
Decrease in other liabilities	(131)	(366)
Net cash provided by (used in) operating activities	119	(66)
Cash flows from investing activities:
Purchases of property and equipment	(95)	(105)
Payments for transition and transformation contract costs	(82)	(72)
Software purchased and developed	(48)	(63)
Payments for acquisitions, net of cash acquired	(10)	(1,911)
Cash collections related to deferred purchase price receivable	159	371
Proceeds from sale of assets	6	21
Short-term investing	0	(75)
Other investing activities, net	9	12
Net cash used in investing activities	(61)	(1,822)
Cash flows from financing activities:
Borrowings of commercial paper	748	1,401
Repayments of commercial paper	(317)	(1,401)
Borrowings under lines of credit	2,500	0
Repayment of borrowings under lines of credit	(750)	0
Borrowings on long-term debt, net of discount	993	2,198
Principal payments on long-term debt	(1,084)	(509)
Payments on finance leases and borrowings for asset financing	(245)	(210)
Proceeds from stock options and other common stock transactions	0	7
Taxes paid related to net share settlements of share-based compensation awards	(3)	(12)
Repurchase of common stock and advance payment for accelerated share repurchase	0	(500)
Dividend payments	(53)	(51)
Other financing activities, net	(3)	(36)
Net cash provided by financing activities	1,786	887
Effect of exchange rate changes on cash and cash equivalents	(14)	(30)
Net increase (decrease) in cash and cash equivalents	1,830	(1,031)
Cash and cash equivalents at beginning of year	3,679	2,899
Cash and cash equivalents at end of period	$ 5,509	$ 1,868