XML 107 R87.htm IDEA: XBRL DOCUMENT v3.10.0.1
Commitments, Legal Proceedings and Contingencies, and Guarantees:Commitments (Details)
$ in Millions
Dec. 31, 2018
USD ($)
Inventories [Member]  
Unrecorded Unconditional Purchase Obligation [Line Items]  
Unrecorded Unconditional Purchase Obligation $ 58