United Healthcare 2012 Annual Report Download - page 83

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3. Investments
A summary of short-term and long-term investments by major security type is as follows:
(in millions)
Amortized
Cost
Gross
Unrealized
Gains
Gross
Unrealized
Losses
Fair
Value
December 31, 2012
Debt securities — available-for-sale:
U.S. government and agency obligations ................. $ 2,501 $ 38 $ (1) $ 2,538
State and municipal obligations ......................... 6,282 388 (3) 6,667
Corporate obligations ................................. 6,930 283 (4) 7,209
U.S. agency mortgage-backed securities .................. 2,168 70 — 2,238
Non-U.S. agency mortgage-backed securities .............. 538 36 — 574
Total debt securities — available-for-sale ..................... 18,419 815 (8) 19,226
Equity securities — available-for-sale ........................ 668 10 (1) 677
Debt securities — held-to-maturity:
U.S. government and agency obligations ................. 168 6 — 174
State and municipal obligations ......................... 30 — — 30
Corporate obligations ................................. 641 2 — 643
Total debt securities — held-to-maturity ...................... 839 8 — 847
Total investments ........................................ $19,926 $833 $ (9) $20,750
December 31, 2011
Debt securities — available-for-sale:
U.S. government and agency obligations ................. $ 2,319 $ 54 $ — $ 2,373
State and municipal obligations ......................... 6,363 403 (1) 6,765
Corporate obligations ................................. 5,825 205 (23) 6,007
U.S. agency mortgage-backed securities .................. 2,279 74 — 2,353
Non-U.S. agency mortgage-backed securities .............. 476 28 — 504
Total debt securities — available-for-sale ..................... 17,262 764 (24) 18,002
Equity securities — available-for-sale ........................ 529 23 (8) 544
Debt securities — held-to-maturity:
U.S. government and agency obligations ................. 166 7 — 173
State and municipal obligations ......................... 13 — — 13
Corporate obligations ................................. 18 — — 18
Total debt securities — held-to-maturity ...................... 197 7 — 204
Total investments ........................................ $17,988 $794 $(32) $18,750
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