Fair Value Measurements (Narrative) (Details) In Millions, unless otherwise specified	12 Months Ended		12 Months Ended
	Dec. 31, 2013 USD ($)	Dec. 31, 2013 JPY (¥)	Dec. 31, 2013 Selling, general and administrative expenses USD ($)	Dec. 31, 2012 Selling, general and administrative expenses USD ($)	Dec. 31, 2011 Selling, general and administrative expenses USD ($)	Dec. 31, 2013 Japan, Yen JPY (¥)	Dec. 31, 2012 Japan, Yen JPY (¥)
Derivative [Line Items]
Exchange rate of Japanese yen per United States dollar						102.25
Investment foreign currency, contract, foreign currency amount						¥ 27	¥ 184
Payments for derivative instrument, investing activities	10
Derivative, notional amount		14				1,400
Pre-tax income related to changes in the fair value of currency swap			$ (14)	$ (22)	$ 8