Fair Value Measurements (Tables)

6 Months Ended

Jun. 30, 2018

Fair Value Disclosures [Abstract]

Assets and Liabilities Measured at Fair Value on a Recurring Basis

The following fair value hierarchy table presents information about the Company’s assets and liabilities measured at fair value on a recurring basis as of June 30, 2018 and December 31, 2017.

	Identical Assets (Level 1)				Observable Inputs (Level 2)				Unobservable Inputs (Level 3)				Total
(In millions)	06/30/18		12/31/17		06/30/18		12/31/17		06/30/18		12/31/17		06/30/18		12/31/17
Assets:
Financial instruments owned:
Exchange traded equity securities(a)	$	99	$	81	$	—	$	—	$	—	$	—	$	99	$	81
Mutual funds(a)	144		158		—		—		—		—		144		158
Money market funds(b)	33		143		—		—		—		—		33		143
Total assets measured at fair value	$	276	$	382	$	—	$	—	$	—	$	—	$	276	$	382
Fiduciary Assets:
Money market funds	$	129	$	111	$	—	$	—	$	—	$	—	$	129	$	111
Total fiduciary assets measured at fair value	$	129	$	111	$	—	$	—	$	—	$	—	$	129	$	111
Liabilities:
Contingent purchase consideration liability(c)	$	—	$	—	$	—	$	—	$	185	$	189	$	185	$	189
Total liabilities measured at fair value	$	—	$	—	$	—	$	—	$	185	$	189	$	185	$	189

^(a) Included in other assets in the consolidated balance sheets.

^(b) Included in cash and cash equivalents in the consolidated balance sheets.

^(c) Included in accounts payable and accrued liabilities and other liabilities in the consolidated balance sheets.

Changes in Fair Value of Level 3 Liabilities Representing Acquisition Related Contingent Consideration

The table below sets forth a summary of the changes in fair value of the Company’s Level 3 liabilities for the three and six month periods ending June 30, 2018 and 2017 that represent contingent consideration related to acquisitions:

	Three Months Ended June 30,						Six Months Ended June 30,
(In millions)	2018			2017			2018			2017
Balance at beginning of period,	$	161		$	247		$	189		$	241
Additions	20			—			26			34
Payments	(1		)	(53		)	(41		)	(65		)
Revaluation Impact	6			8			11			(8		)
Other (a)	(1		)	1			—			1
Balance at June 30,	$	185		$	203		$	185		$	203

^(a) Primarily reflects the impact of foreign exchange.