Commitments And Contingencies (Other) (Narrative) (Details) $ in Billions |
9 Months Ended |
|---|---|
|
Sep. 30, 2016
USD ($)
property
| |
| Property Lock-Ups [Member] | |
| Commitments And Contingencies [Line Items] | |
| Expiration year | 2016 |
| Property Lock-Ups Expired [Member] | |
| Commitments And Contingencies [Line Items] | |
| Number of properties | property | 116 |
| Properties aggregate net book value | $ | $ 1.3 |