Fair Value Measurements (Tables)

3 Months Ended

Mar. 31, 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 March 31, 2018 and December 31, 2017.

	Identical Assets (Level 1)				Observable Inputs (Level 2)				Unobservable Inputs (Level 3)				Total
(In millions)	03/31/18		12/31/17		03/31/18		12/31/17		03/31/18		12/31/17		03/31/18		12/31/17
Assets:
Financial instruments owned:
Exchange traded equity securities(a)	$	73	$	81	$	—	$	—	$	—	$	—	$	73	$	81
Mutual funds(a)	146		158		—		—		—		—		146		158
Money market funds(b)	27		143		—		—		—		—		27		143
Total assets measured at fair value	$	246	$	382	$	—	$	—	$	—	$	—	$	246	$	382
Fiduciary Assets:
Money market funds	$	36	$	111	$	—	$	—	$	—	$	—	$	36	$	111
Total fiduciary assets measured at fair value	$	36	$	111	$	—	$	—	$	—	$	—	$	36	$	111
Liabilities:
Contingent purchase consideration liability(c)	$	—	$	—	$	—	$	—	$	161	$	189	$	161	$	189
Total liabilities measured at fair value	$	—	$	—	$	—	$	—	$	161	$	189	$	161	$	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 as of March 31, 2018 and 2017 that represent contingent consideration related to acquisitions:

	Three Months Ended March 31,
(In millions)	2018			2017
Balance at beginning of period,	$	189		$	241
Additions	6			34
Payments	(40		)	(12		)
Revaluation Impact	5			(16		)
Other (a)	1			—
Balance at March 31,	$	161		$	247

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