XML 95 R77.htm IDEA: XBRL DOCUMENT v3.8.0.1
Equity (Accumulated Other Comprehensive Income) (Details) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2017
Dec. 31, 2016
Partners' Capital Notes [Abstract]    
Unrealized gains on available-for-sale securities $ 8 $ 2
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Gain (Loss) Arising During Period, Net of Tax (5) (5)
Other Comprehensive Income (Loss), Defined Benefit Plan, Gain (Loss) Arising During Period, after Tax (5) 7
AOCI attributable to equity method investments 5 4
Subtotal 3 8
Amounts attributable to noncontrolling interest (3) (8)
Total AOCI included in partners' capital, net of tax $ 0 $ 0 [1]
[1] * As adjusted. See Note 2.