XML 36 R53.htm IDEA: XBRL DOCUMENT

Pension Plans and Postretirement Benefits (Details Textual) (USD $) In Millions, unless otherwise specified	3 Months Ended						3 Months Ended
	Mar. 31, 2013	Apr. 01, 2012	Mar. 31, 2013 Pension Benefits [Member]	Apr. 01, 2012 Pension Benefits [Member]	Mar. 31, 2013 Pension Benefits - U.S. Plans [Member]	Dec. 30, 2012 Pension Benefits - U.S. Plans [Member]	Mar. 31, 2013 U.S. Government Cost Accounting Standards [Member]	Apr. 01, 2012 U.S. Government Cost Accounting Standards [Member]
Pension Plans and Postretirement Benefits (Textual) [Abstract]
Net periodic pension expense			$ 4.3	$ 1.7
Discount rate used to determine the benefit obligation					440.00%	550.00%
Pension expense allocated to contracts pursuant to U.S. Government Cost Accounting Standards							3.6	3.2
Pretax voluntary contribution	$ 83.0	$ 50.0

The amount of pension benefit costs recognized during the period for (1) defined benefit plans and (2) defined contribution plans. For defined benefit plans, pension expense includes the following components: service cost, interest cost, expected return on plan assets, gain (loss) on plan assets, prior service cost or credit, transition asset or obligation, and gain (loss) due to settlements or curtailments. For defined contribution plans, the pension expense generally equals the firm's contribution to employees' accounts (if the firm contributes) during the period.

+ References+ Details