Derivative Instruments (Tables)

9 Months Ended

Sep. 30, 2015

Derivative Instruments [Abstract]

Summary of derivative instruments

	September 30, 2015		December 31, 2014
Notional amount	$	2,904	$	3,811
Weighted average pay rate on interest-rate swaps		3.67%		4.06%
Weighted average receive rate on interest-rate swaps		0.23%		0.18%
Weighted average maturity (years)		4.3		4.3
Fair value of interest-rate swaps	$	(265)	$	(318)
Fair value of yield maintenance provisions		265		318