VIE Structure and Arrangements (Narrative) (Details) - 12 months ended Dec. 31, 2015 ¥ in Millions, $ in Millions	USD ($) yr d	CNY (¥) yr d
Vie Structure And Arrangements 1	100.00%	100.00%
Vie Structure And Arrangements 2 | yr	20	20
Vie Structure And Arrangements 3 | d	30	30
Vie Structure And Arrangements 4 | ¥		¥ 17.0
Vie Structure And Arrangements 5 | $	$ 2.6