CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (unaudited) - USD ($)	6 Months Ended
	Sep. 30, 2019	Sep. 30, 2018
Cash flows from operating activities:
Net (loss) income	$ (1,947,000,000)	$ 525,000,000
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	946,000,000	1,002,000,000
Goodwill impairment losses	2,887,000,000	0
Operating right-of-use expense	340,000,000	0
Share-based compensation	48,000,000	41,000,000
Gain on dispositions	(4,000,000)	(65,000,000)
Unrealized foreign currency exchange gains	(50,000,000)	(12,000,000)
Other non-cash charges, net	2,000,000	(18,000,000)
Changes in assets and liabilities, net of effects of acquisitions and dispositions:
Decrease (increase) in assets	167,000,000	(483,000,000)
Decrease in operating lease liability	(340,000,000)	0
Decrease in other liabilities	(464,000,000)	(141,000,000)
Net cash provided by operating activities	1,585,000,000	849,000,000
Cash flows from investing activities:
Purchases of property and equipment	(192,000,000)	(133,000,000)
Payments for transition and transformation contract costs	(158,000,000)	(183,000,000)
Software purchased and developed	(126,000,000)	(125,000,000)
Payments for acquisitions, net of cash acquired	(1,921,000,000)	(43,000,000)
Business dispositions	0	(65,000,000)
Cash collections related to deferred purchase price receivable	371,000,000	445,000,000
Proceeds from sale of assets	40,000,000	57,000,000
Short-term investing	(75,000,000)	0
Other investing activities, net	14,000,000	(1,000,000)
Net cash used in investing activities	(2,047,000,000)	(48,000,000)
Cash flows from financing activities:
Borrowings of commercial paper	2,879,000,000	1,158,000,000
Repayments of commercial paper	(2,866,000,000)	(1,158,000,000)
Borrowings on long-term debt, net of discount	2,198,000,000	483,000,000
Principal payments on long-term debt	(519,000,000)	(2,036,000,000)
Payments on finance leases and borrowings for asset financing	(421,000,000)	(475,000,000)
Borrowings for USPS spin transaction	0	1,114,000,000
Proceeds from bond issuance	0	753,000,000
Proceeds from stock options and other common stock transactions	10,000,000	36,000,000
Taxes paid related to net share settlements of share-based compensation awards	(12,000,000)	(20,000,000)
Repurchase of common stock and advance payment for accelerated share repurchase	(650,000,000)	(447,000,000)
Dividend payments	(107,000,000)	(105,000,000)
Other financing activities, net	(32,000,000)	11,000,000
Net cash provided by (used in) financing activities	480,000,000	(686,000,000)
Effect of exchange rate changes on cash and cash equivalents	(37,000,000)	(64,000,000)
Net (decrease) increase in cash and cash equivalents	(19,000,000)	51,000,000
Cash and cash equivalents at beginning of year	2,899,000,000	2,729,000,000
Cash and cash equivalents at end of period	$ 2,880,000,000	$ 2,780,000,000