ADT 2011 Annual Report Download - page 249

TYCO INTERNATIONAL LTD.
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued)
16. Retirement Plans (Continued)
employees who were eligible at the date of acquisition, and a small number of U.S. and Canadian
operations provide ongoing eligibility for such benefits.
Net periodic postretirement benefit cost for 2011, 2010 and 2009 is as follows ($ in millions):
2011 2010 2009
Service cost ........................................ $— $— $—
Interest cost ....................................... 3 4 4
Amortization of prior service credit ....................... — (1) (1)
Amortization of net actuarial gain ........................ — (1) (1)
Net periodic postretirement benefit cost ................... $ 3 $ 2 $ 2
Weighted-average assumptions used to determine net periodic
postretirement benefit cost during the year:
Discount rate ....................................... 4.4% 5.2% 7.4%
146 2011 Financials