The fair values of pension plan assets by asset class and fair value hierarchy level are as follows:

	Fair Value Measurements
December 31		Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)		Net Asset Value		Total Fair Value
(in millions)		2019
Equity securities¹:
Mid-sized to large cap		$	—	$	—	$	—	$	262.5	$	262.5
Small cap, international and emerging growth funds			—		—		—		290.3		290.3
Debt securities¹:
Core fixed income			—		—		—		242.9		242.9
Real estate			—		—		—		42.9		42.9
Hedge funds			—		—		—		26.4		26.4
Cash equivalents			3.0		—		—		—		3.0
Total		$	3.0	$	—	$	—	$	865.0	$	868.0

		2018
Equity securities¹:
Mid-sized to large cap		$	—	$	—	$	—	$	196.5	$	196.5
Small cap, international and emerging growth funds			—		—		—		210.4		210.4
Debt securities¹:
Core fixed income			—		—		—		228.2		228.2
Real estate			—		—		—		35.5		35.5
Hedge funds			—		—		—		44.4		44.4
Cash equivalents			2.9		—		—		—		2.9
Total		$	2.9	$	—	$	—	$	715.0	$	717.9

Schedule of fair values of pension plan assets by asset class and fair value hierarchy level.

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Tabular disclosure of the major categories of plan assets of pension plans and/or other employee benefit plans. This information may include, but is not limited to, the target allocation of plan assets, the fair value of each major category of plan assets, and the level within the fair value hierarchy in which the fair value measurements fall.

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