Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Millions	6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018
Operating cash flows:
Net income before non-controlling interests	$ 1,071	$ 1,232
Adjustments to reconcile net income to cash provided by operations:
Depreciation and amortization of fixed assets and capitalized software	159	159
Amortization of intangible assets	151	88
Amortization of right of use asset	151	0
Adjustments and payments related to contingent consideration liability	(9)	2
Charge for early extinguishment of debt	32	0
Provision for deferred income taxes	82	34
Gain on investments	(13)	(28)
(Gain) loss on disposition of assets	21	(1)
Share-based compensation expense	117	99
Change in fair value of acquisition-related derivative contracts	8	0
Changes in assets and liabilities:
Net receivables	(437)	(388)
Other current assets	(4)	4
Other assets	(33)	(10)
Accounts payable and accrued liabilities	29	30
Accrued compensation and employee benefits	(670)	(614)
Accrued income taxes	6	18
Contributions to pension and other benefit plans in excess of current year expense/credit	(172)	(178)
Other liabilities	36	(10)
Operating lease liabilities	(155)	0
Effect of exchange rate changes	(129)	(24)
Net cash provided by operations	241	413
Financing cash flows:
Purchase of treasury shares	(100)	(500)
Net increase in commercial paper	549	175
Net increase in short term borrowings	300	0
Proceeds from issuance of debt	6,459	592
Repayments of debt	(457)	(6)
Payments for early extinguishment of debt	(585)	0
Purchase of non-controlling interests	(50)	0
Acquisition-related derivative payments	(337)	0
Shares withheld for taxes on vested units – treasury shares	(87)	(62)
Issuance of common stock from treasury shares	108	48
Payments of deferred and contingent consideration for acquisitions	(39)	(85)
Distributions of non-controlling interests	(15)	(11)
Dividends paid	(422)	(383)
Net cash provided by (used for) financing activities	5,324	(232)
Investing cash flows:
Capital expenditures	(161)	(135)
Sales (Purchases) of long-term investments	202	(3)
Purchase of equity investment	(91)	0
Proceeds from sales of fixed assets	2	1
Dispositions	165	4
Acquisitions	(5,500)	(144)
Other, net	(47)	(2)
Net cash used for investing activities	(5,430)	(279)
Effect of exchange rate changes on cash and cash equivalents	93	(71)
Increase (decrease) in cash and cash equivalents	228	(169)
Cash and cash equivalents at beginning of period	1,066	1,205
Cash and cash equivalents at end of period	$ 1,294	$ 1,036