Income Taxes - Indefinite Reinvestment of Foreign Earnings (Details) (USD $)	3 Months Ended	9 Months Ended
	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Income Taxes [Abstract]
Increase to shareholders' net income resulting from indefinite reinvestment of foreign earnings		$ 69,000,000	$ 28,000,000
Accumulated permanently reinvested foreign earnings		1,300,000,000
Cumulative unrecognized deferred tax liabilities		235,000,000
Income tax expense reduction	$ 32,000,000