Subsequent Events (Details) (Subsequent Event [Member], USD $)	1 Months Ended		0 Months Ended
	Jul. 24, 2014	Jul. 24, 2014 AA [Member]	Jul. 23, 2014 AA [Member] Senior Notes [Member] 7.50% Senior Secured Notes Due 2016 [Member]	Jul. 23, 2014 AA [Member] Senior Notes [Member] 7.50% Senior Secured Notes Due 2016 [Member]
Subsequent Event [Line Items]
Stock repurchase program, authorized amount	$ 1,000,000,000.0
Quarterly Dividend expected in fourth quarter of 2014	$ 0.10
Principal amount				900,000,000
Stated interest rate percentage (percent)				7.50%
Redemption price (percent)			103.75%
Estimated future employer contributions in current fiscal year		600,000,000
Required contributions		$ 120,000,000