Annual and transition report of foreign private issuers pursuant to Section 13 or 15(d)

Restricted Cash, Deposits and Marketable Securities (Narrative) (Details)

v3.19.1
Restricted Cash, Deposits and Marketable Securities (Narrative) (Details)
12 Months Ended
Dec. 31, 2018
Dec. 31, 2017
Disclosure of financial assets [line items]    
Bonds coupon rate 3.389% 3.389%
Bonds Maturity date Dec. 30, 2018 Dec. 30, 2018
Bonds rating Baa3 Baa3
Annual interest rate 2.30% 1.50%
WACHOVIA [Member]    
Disclosure of financial assets [line items]    
Bonds coupon rate   4.435%
Bonds Maturity date   Dec. 30, 2020
Bonds rating   Baa3
Annual interest rate   5.80%