Fair Value Measurements (Tables)

6 Months Ended

Jun. 30, 2015

Fair Value Disclosures [Abstract]

Schedule of Carrying Values and Fair Values of Long-term Debt

The carrying amounts and fair values of the Company’s long-term debt were as follows:

	June 30, 2015				December 31, 2014
(in millions)	Carrying Amount		Fair Value		Carrying Amount		Fair Value
Long-term debt to third parties principal, excluding capital leases	$	15,600	$	16,266	$	15,600	$	16,034
Long-term debt to affiliates	5,600		6,013		5,600		5,780