Consolidated Balance Sheets - USD ($) $ in Millions	Jun. 30, 2017	Dec. 31, 2016	Dec. 31, 2015
Current Assets:
Cash and cash equivalents	$ 1,834.0	$ 3,002.2	$ 2,605.2
Short-term investments, at cost	40.4	20.6
Accounts receivable, net of allowance for doubtful accounts of $26.8 and $24.9	7,142.8	7,510.8
Work in process	1,401.6	1,125.4
Other current assets	1,086.3	1,063.0
Total Current Assets	11,505.1	12,722.0
Property and Equipment at cost, less accumulated depreciation of $1,276.7 and $1,233.4	687.7	674.8
Equity Method Investments	126.3	120.4
Goodwill	9,182.0	8,976.1	8,676.4
Intangible Assets, net of accumulated amortization of $830.3 and $777.6	392.3	427.4
Other Assets	270.0	244.7
TOTAL ASSETS	22,163.4	23,165.4
Current Liabilities:
Accounts payable	9,849.2	10,476.7
Customer advances	1,141.1	1,186.6
Current portion of debt	0.0	0.1
Short-term debt	19.3	28.7
Taxes payable	225.1	349.6
Other current liabilities	1,629.0	1,969.2
Total Current Liabilities	12,863.7	14,010.9
Long-Term Debt	4,930.0	4,920.5
Long-Term Liabilities	930.4	892.3
Deferred Tax Liabilities	490.3	480.5
Commitments and Contingent Liabilities (See Note 10)
Temporary Equity - Redeemable Noncontrolling Interests	190.0	201.6
Shareholders’ Equity:
Preferred stock	0.0	0.0
Common stock	44.6	44.6
Additional paid-in capital	824.2	798.3
Retained earnings	5,958.8	5,677.2
Accumulated other comprehensive income (loss)	(1,112.0)	(1,356.0)	$ (1,015.4)
Treasury stock, at cost	(3,459.5)	(3,002.1)
Total Shareholders’ Equity	2,256.1	2,162.0
Noncontrolling interests	502.9	497.6
Total Equity	2,759.0	2,659.6
TOTAL LIABILITIES AND EQUITY	$ 22,163.4	$ 23,165.4

Carrying value as of the balance sheet date of liabilities incurred (and for which invoices have typically been received) and payable to vendors for goods and services received that are used in an entity's business. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).

Name:	us-gaap_AccountsPayableCurrent
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Amount due from customers or clients, within one year of the balance sheet date (or the normal operating cycle, whichever is longer), for goods or services (including trade receivables) that have been delivered or sold in the normal course of business, reduced to the estimated net realizable fair value by an allowance established by the entity of the amount it deems uncertain of collection.