Fair Value Measurements (Tables)

12 Months Ended

Dec. 31, 2019

Fair Value Disclosures [Abstract]

Fair Value, Assets and Liabilities Measured on Recurring Basis

Assets and liabilities measured and recorded at fair value on a recurring basis consisted of the following (in millions):

	December 31, 2019						December 31, 2018
	Total		Level 1		Level 2		Total		Level 1		Level 2
Assets
Mutual funds	$	1,363	$	1,363	$	—	$	978	$	978	$	—
U.S. Government securities	99		—		99		105		—		105
Other securities	319		171		148		144		28		116
Derivatives	18		—		18		22		—		22
Liabilities
Derivatives	23		—		23		61		—		61
Assets measured at NAV
Other commingled funds	19						18