Consolidated Statements Of Cash Flows - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Operating cash flows:
Net income before non-controlling interests	$ 1,773	$ 1,670	$ 1,512
Adjustments to reconcile net income to cash provided by operations:
Depreciation and amortization of fixed assets and capitalized software	333	311	312
Amortization of intangible assets	314	183	169
Non cash lease expense	315	0	0
Adjustments and payments related to contingent consideration liability	27	(4)	(24)
Loss on deconsolidation of entity	0	11	0
Charge for early extinguishment of debt	32	0	0
Provision (Benefit) for deferred income taxes	84	(39)	396
(Gain) loss on investments	(22)	12	(15)
Loss (gain) on disposition of assets	56	(48)	10
Share-based compensation expense	252	193	149
Change in fair value of acquisition-related derivative contracts	8	441	0
Changes in assets and liabilities:
Net receivables	(130)	(78)	(454)
Other current assets	(13)	26	(3)
Other assets	(1)	(37)	(199)
Accounts payable and accrued liabilities	120	23	87
Accrued compensation and employee benefits	154	68	63
Accrued income taxes	42	(40)	37
Contributions to pension and other benefit plans in excess of current year expense/credit	(369)	(291)	(457)
Other liabilities	(172)	9	406
Operating lease liabilities	(327)	0	0
Effect of exchange rate changes	(115)	18	(96)
Net cash provided by operations	2,361	2,428	1,893
Financing cash flows:
Purchase of treasury shares	(485)	(675)	(900)
Net increase in short term borrowings	300	0	0
Proceeds from issuance of debt	6,459	591	987
Repayments of debt	(1,064)	(263)	(315)
Payment of bridge loan fees	0	(35)	0
Payments for early extinguishment of debt	(585)	0	0
Purchase of non-controlling interests	(80)	0	0
Acquisition-related derivative payments	(337)	0	0
Shares withheld for taxes on vested units – treasury shares	(89)	(67)	(49)
Issuance of common stock from treasury shares	158	93	166
Payments of deferred and contingent consideration for acquisitions	(65)	(117)	(136)
Distributions of non-controlling interests	(16)	(30)	(22)
Dividends paid	(890)	(807)	(740)
Net cash provided by (used for) financing activities	3,306	(1,310)	(1,009)
Investing cash flows:
Capital expenditures	(421)	(314)	(302)
Net sales (purchases) of long-term investments	183	4	(13)
Purchase of equity investment	(91)	0	0
Proceeds from sales of fixed assets	10	3	8
Dispositions	229	110	0
Acquisitions	(5,505)	(884)	(655)
Other, net	(76)	(8)	6
Net cash used for investing activities	(5,671)	(1,089)	(956)
Effect of exchange rate changes on cash and cash equivalents	93	(168)	251
increase (Decrease) in cash and cash equivalents	89	(139)	179
Cash and cash equivalents at beginning of year	1,066	1,205	1,026
Cash and cash equivalents at end of year	$ 1,155	$ 1,066	$ 1,205