Consolidated Statements of Cash Flows - USD ($) $ in Millions	6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015
Operating cash flows:
Net income before non-controlling interests	$ 970	$ 924
Adjustments to reconcile net income to cash provided by operations:
Depreciation and amortization of fixed assets and capitalized software	154	156
Amortization of intangible assets	67	48
Adjustments and payments related to contingent consideration liability	(8)	0
Gain on deconsolidation of subsidiary	(12)	0
Provision for deferred income taxes	48	90
Loss (gain) on investments	2	(2)
Loss on disposition of assets	3	1
Share-based compensation expense	58	46
Changes in assets and liabilities:
Net receivables	(280)	(274)
Other current assets	(37)	(6)
Other assets	(1)	(15)
Accounts payable and accrued liabilities	(24)	(75)
Accrued compensation and employee benefits	(645)	(659)
Accrued income taxes	35	37
Contributions to pension and other benefit plans in excess of current year expense/credit	(139)	(149)
Other liabilities	(10)	(59)
Effect of exchange rate changes	48	49
Net cash provided by operations	229	112
Financing cash flows:
Purchase of treasury shares	(410)	(775)
Net increase in commercial paper	0	50
Proceeds from debt	347	494
Repayments of debt	(6)	(5)
Shares withheld for taxes on vested units – treasury shares	(38)	(48)
Issuance of common stock from treasury shares	131	147
Payments of deferred and contingent consideration for acquisitions	(63)	(40)
Distributions of non-controlling interests	(11)	(15)
Dividends paid	(326)	(302)
Net cash used for financing activities	(376)	(494)
Investing cash flows:
Capital expenditures	(114)	(176)
Net purchases of long-term investments	(4)	(90)
Proceeds from sales of fixed assets	1	1
Acquisitions	(77)	(260)
Other, net	4	(3)
Net cash used for investing activities	(190)	(528)
Effect of exchange rate changes on cash and cash equivalents	(63)	(118)
Decrease in cash and cash equivalents	(400)	(1,028)
Cash and cash equivalents at beginning of period	1,374	1,958
Cash and cash equivalents at end of period	$ 974	$ 930