Concentrations of Credit Risk (Tables)

12 Months Ended

Dec. 31, 2017

Risks and Uncertainties [Abstract]

Commercial Real Estate Loan Types

The table below provides additional detail regarding commercial real estate loan types.

TABLE 69: COMMERCIAL REAL ESTATE LOANS

	DECEMBER 31,
(In Millions)	2017		2016
Commercial Mortgages
Office	$	825.2	$	866.1
Apartment/ Multi-family	623.3		784.8
Retail	631.1		698.1
Industrial/ Warehouse	311.1		359.7
Other	445.6		457.6
Total Commercial Mortgages	2,836.3		3,166.3
Construction, Acquisition and Development Loans	350.8		445.0
Single Family Investment	164.8		179.6
Other Commercial Real Estate Related	130.8		211.6
Total Commercial Real Estate Loans	$	3,482.7	$	4,002.5