Comprehensive Income (Notes)

3 Months Ended

Mar. 31, 2015

Statement of Comprehensive Income [Abstract]

Comprehensive Income

ACCUMULATED OTHER COMPREHENSIVE INCOME:

As of March 31, 2015 and December 31, 2014, accumulated other comprehensive income consisted of net actuarial gains and prior service costs related to our OPEB plans, which were less than $1 million in the aggregate.