Consolidated Statements of Cash Flows - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Cash flows from operating activities:
Net income	$ 377	$ 225
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and other amortization	279	100
Amortization of acquisition-related intangible assets	553	45
Amortization of financing costs, debt discounts and other	12	60
Share-based compensation	108	19
Deferred income taxes	(57)	8
Gain on sale of businesses	(431)	(10)
Loss from investments in unconsolidated affiliates	6	2
Distributions from unconsolidated affiliates	11	0
Other operating activities	0	(2)
Changes in assets and liabilities, net of effects from acquisitions and dispositions:
Trade accounts receivable	200	6
Prepaid expenses and other assets	6	(26)
Contract costs	(96)	(58)
Accounts payable and other liabilities	(88)	(26)
Contract liabilities	8	30
Net cash provided by operating activities	888	373
Cash flows from investing activities:
Capital expenditures, including capitalization of software costs	(246)	(98)
Proceeds from sale of business	584	0
Payments for acquisition of businesses, net of cash acquired and including working capital adjustments	(110)	56
Distributions from unconsolidated affiliates	36	0
Other investing activities	0	6
Net cash provided by (used in) investing activities	264	(36)
Cash flows from financing activities:
Debt proceeds	1,832	587
Debt repayments	(2,040)	(680)
Short-term borrowings, net	7	0
Payments of debt financing, redemption and other costs	0	(56)
Proceeds from issuance of treasury stock	48	32
Purchases of treasury stock, including employee shares withheld for tax obligations	(970)	(183)
Distributions paid to noncontrolling interests and redeemable noncontrolling interests	(26)	0
Other financing activities	15	0
Net cash used in financing activities	(1,134)	(300)
Effect of exchange rate changes on cash, cash equivalents and restricted cash	(17)	0
Net change in cash, cash equivalents and restricted cash	1	37
Cash, cash equivalents and restricted cash, beginning balance	933	415
Cash, cash equivalents and restricted cash, ending balance	$ 934	$ 452