Fair Value Measurements (Tables)

3 Months Ended

Mar. 31, 2013

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):

	March 31, 2013						December 31, 2012
	Total		Level 1		Level 2		Total		Level 1		Level 2
Assets
Equity securities	$	75	$	75		$      —	$	75	$	75	$	—
Mutual funds		435		435		—		418		418		—
U.S. Government securities		238		—		238		213		—		213
Other securities		141		—		141		141		—		141
Derivatives		39		—		39		39		—		39
Liabilities
Derivatives		21		—		21		25		—		25