Significant Accounting Policies (Tables)

12 Months Ended

Dec. 31, 2015

Significant Accounting Policies [Abstract]

Components of Operating Expenses

Operating expenses for the three years ended December 31, 2015 were (in millions):

	2015		2014		2013
Salary and service costs	$	11,361.9	$	11,350.0	$	10,724.4
Office and general expenses	1,852.4		2,023.7		2,034.8
	$	13,214.3	$	13,373.7	$	12,759.2