Significant Accounting Policies (Tables)

12 Months Ended

Dec. 31, 2014

Significant Accounting Policies [Abstract]

Components of Operating Expenses

Operating expenses for the three years ended December 31, 2014 were (in millions):

	2014		2013		2012
Salary and service costs	$	11,350.0	$	10,724.4	$	10,406.8
Office and general expenses	2,023.7		2,034.8		2,008.4
	$	13,373.7	$	12,759.2	$	12,415.2