Consolidated Balance Sheets - USD ($) $ in Millions	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
ASSETS:
Cash and cash equivalents	$ 673.4	$ 790.9
Accounts receivable, net of allowance of $42.5 and $42.7, respectively	5,126.6	4,585.0
Accounts receivable, billable to clients	1,900.6	1,747.4
Assets held for sale	5.7	5.7
Other current assets	476.6	346.5
Total current assets	8,182.9	7,475.5
Property and equipment, net	790.9	650.4
Deferred income taxes	247.0	234.0
Goodwill	4,875.9	3,820.4	$ 3,674.4
Other intangible assets	1,094.7	140.7
Other non-current assets	428.9	383.7
TOTAL ASSETS	15,620.3	12,704.7
LIABILITIES:
Accounts payable	6,698.1	6,420.2
Accrued liabilities	806.9	674.7
Contract liabilities	533.9	484.7
Short-term borrowings	73.7	84.9
Current portion of long-term debt	0.1	2.0
Liabilities held for sale	11.2	8.8
Total current liabilities	8,123.9	7,675.3
Long-term debt	3,660.2	1,285.6
Deferred compensation	422.7	476.6
Other non-current liabilities	812.8	768.8
TOTAL LIABILITIES	13,019.6	10,206.3
Redeemable noncontrolling interests	167.9	252.1	252.8	$ 251.9
STOCKHOLDERS' EQUITY:
Common Stock, Value, Issued	38.3	38.6
Additional paid-in capital	895.9	955.2
Retained earnings	2,400.1	2,104.5
Accumulated other comprehensive loss, net of tax	(941.1)	(827.8)	(964.4)
Stockholders Equity Subtotal Before Treasury Stock	2,393.2	2,270.5
Less: Treasury stock, at cost: 2017 – 3.0 shares; 2016 – 2.7 shares	0.0	(59.0)
Total IPG stockholders' equity	2,393.2	2,211.5
Noncontrolling interests	39.6	34.8
TOTAL STOCKHOLDERS' EQUITY	2,432.8	2,246.3	$ 2,090.4	$ 2,001.8
TOTAL LIABILITIES AND EQUITY	$ 15,620.3	$ 12,704.7