Consolidated Balance Sheets - USD ($) $ in Millions		Mar. 31, 2020	Dec. 31, 2019
Assets
Cash and cash equivalents		$ 851.7	$ 1,551.4
Marketable securities		77.5	83.2
Accounts receivable, net of allowance of $4.8 and $3.4		799.7	491.8
Other current assets (includes $4.3 and $4.3 in restricted cash)		315.9	364.4
Performance bonds and guaranty fund contributions		100,371.8	37,077.0
Total current assets		102,416.6	39,567.8
Property, net of accumulated depreciation and amortization of $885.6 and $867.5		538.4	544.0
Intangible assets, trading products	[1]	17,175.3	17,175.3
Intangible assets—Other, net		4,997.9	5,117.7
Goodwill		10,742.5	10,742.5
Other assets (includes $0.8 and $0.9 in restricted cash)		2,061.6	2,068.0
Total Assets		137,932.3	75,215.3
Liabilities and Equity
Accounts payable		74.3	61.9
Other current liabilities		607.9	1,384.8
Performance bonds and guaranty fund contributions		100,371.5	37,075.8
Total current liabilities		101,053.7	38,522.5
Long-term debt		3,539.8	3,743.2
Deferred income tax liabilities, net		5,622.1	5,635.2
Other liabilities		1,118.0	1,155.1
Total Liabilities		111,333.6	49,056.0
Shareholders' Equity:
Preferred stock, $0.01 par value, 10,000 shares authorized at March 31, 2020 and December 31, 2019; none issued		0.0	0.0
Additional paid-in capital		21,120.4	21,113.2
Retained earnings		5,469.9	5,008.7
Accumulated other comprehensive income (loss)		(26.2)	3.4
Total CME Group Shareholders’ Equity		26,567.7	26,128.9
Stockholders' Equity Attributable to Noncontrolling Interest		31.0	30.4
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest		26,598.7	26,159.3
Total Liabilities and Equity		137,932.3	75,215.3
Class A Common Stock [Member]
Shareholders' Equity:
Common stock		3.6	3.6
Class B Common Stock [Member]
Shareholders' Equity:
Common stock		$ 0.0	$ 0.0

[1] ) Trading products represent futures and options products acquired in our business combinations with CBOT Holdings, Inc., NYMEX Holdings, Inc. and The Board of Trade of Kansas City, Missouri, Inc. Clearing and transaction fees are generated through the trading of these products. These trading products, most of which have traded for decades, require authorization from the Commodity Futures Trading Commission (CFTC). Product authorizations from the CFTC have no term limits.