Humana 2012 Annual Report Download - page 111

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Humana Inc.
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS—(Continued)
4. INVESTMENT SECURITIES
Investment securities classified as current and long-term were as follows at December 31, 2012 and 2011,
respectively:
Amortized
Cost
Gross
Unrealized
Gains
Gross
Unrealized
Losses
Fair
Value
(in millions)
December 31, 2012
U.S. Treasury and other U.S. government corporations and
agencies:
U.S. Treasury and agency obligations ................... $ 602 $ 16 $ 0 $ 618
Mortgage-backed securities ........................... 1,519 85 (1) 1,603
Tax-exempt municipal securities ........................... 2,890 185 (4) 3,071
Mortgage-backed securities:
Residential ........................................ 33 2 (1) 34
Commercial ....................................... 615 44 0 659
Asset-backed securities .................................. 66 2 0 68
Corporate debt securities ................................. 3,394 402 (2) 3,794
Total debt securities ............................. $9,119 $736 $ (8) $9,847
December 31, 2011
U.S. Treasury and other U.S. government corporations and
agencies:
U.S. Treasury and agency obligations ................... $ 705 $ 20 $ 0 $ 725
Mortgage-backed securities ........................... 1,701 85 (2) 1,784
Tax-exempt municipal securities ........................... 2,709 149 (2) 2,856
Mortgage-backed securities:
Residential ........................................ 46 0 (2) 44
Commercial ....................................... 356 25 0 381
Asset-backed securities .................................. 82 1 0 83
Corporate debt securities ................................. 3,329 262 (11) 3,580
Total debt securities ............................. $8,928 $542 $(17) $9,453
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