XML 23 R47.htm IDEA: XBRL DOCUMENT v3.2.0.727
Equity-Indexed Compensation Plans (Details 3) - USD ($)
$ in Millions
3 Months Ended 6 Months Ended
Jun. 30, 2015
Jun. 30, 2014
Jun. 30, 2015
Jun. 30, 2014
Other Consolidated Equity-Indexed Compensation Plan Information        
Equity-indexed compensation expense $ 17 $ 34 $ 36 $ 68
LTIP unit-settled vestings 35 44 35 51
LTIP cash-settled vestings 55 51 55 52
DER cash payments $ 2 $ 2 $ 4 $ 4