Pension and Other Postretirement Benefits (Tables)

3 Months Ended

Mar. 30, 2012

Pension and Other Postretirement Benefits [Abstract]

Components of net periodic benefit cost

	Pension Plans						Postretirement Benefit Plans
	First Quarter Ended
	March 30, 2012			April 1, 2011			March 30, 2012			April 1, 2011
	(in millions)
Components of net periodic benefit cost:
Service cost	$	30		$	28		$	1		$	1
Interest cost		33			32			3			3
Expected return on plan assets		(35	)		(35	)		(1	)		(1	)
Amortization of prior service credits		—			—			—			(1	)
Amortization of net losses		17			14			—			—
Curtailment loss		1			1			—			1
Net periodic benefit cost	$	46		$	40		$	3		$	3