Stock Compensation Plans and Other Compensation Arrangements (Tables)

12 Months Ended

Dec. 31, 2011

STOCK COMPENSATION PLANS AND OTHER COMPENSATION ARRANGEMENTS [Abstract]

Assumptions relating to valuation of stock options

	2011			2010			2009
Dividend yield		2.8	%		2.9	%		3.6%
Volatility rate		25	%		25	%		25%
Risk-free interest rate		2.3	%		2.2	%		1.7%
Expected option life (years)		6			6			5-6

Stock Option Rollforward Activity

							Weighted-
				Weighted-			Average		Aggregate
	Shares			Average			Remaining		Intrinsic
	under Option			Exercise			Contractual		Value
	(in thousands)			Price			Term		($ in millions)
Outstanding at January 1, 2011		13,221			$	55		3.8 years		$	149
Granted		848				63
Exercised		(2,384	)			44
Canceled and forfeited		(91	)			55
Shipbuilding spin-off adjustments		150				59
Outstanding at December 31, 2011		11,744			$	53		3.4 years		$	93
Vested and expected to vest in the future at December 31, 2011		11,716			$	53		3.4 years		$	93
Exercisable at December 31, 2011		8,974			$	53		2.8 years		$	79

Stock Award Rollforward Activity

							Weighted-
				Weighted-			Average
	Stock			Average			Remaining
	Awards			Grant Date			Contractual
	(in thousands)			Fair Value			Term
Outstanding at January 1, 2009		3,276			$	75		1.4 years
Granted		2,356				45
Vested		(1,645	)			71
Forfeited		(329	)			66
Outstanding at December 31, 2009		3,658			$	58		1.6 years
Granted		2,317				60
Vested		(1,319	)			79
Forfeited		(356	)			56
Outstanding at December 31, 2010		4,300			$	53		1.5 years
Granted		1,748				63
Vested		(1,824	)			42
Forfeited		(350	)			50
Shipbuilding spin-off adjustments		(252	)			47
Outstanding at December 31, 2011		3,622			$	58		1.6 years