Income Taxes (Details 5) (USD $) In Millions, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Net operating loss (NOL) carryforwards
Gross deferred income tax asset associated with NOL carryforwards	$ 56	$ 59	$ 69
U.S. state taxing jurisdictions
Net operating loss (NOL) carryforwards
NOL carryforwards	218
Gross deferred income tax asset associated with NOL carryforwards	17
NOL carryforwards, Valuation allowance	6
U.S. state taxing jurisdictions | Expiration Date 2014
Net operating loss (NOL) carryforwards
NOL carryforwards	0
U.S. state taxing jurisdictions | Expiration Date 2015
Net operating loss (NOL) carryforwards
NOL carryforwards	0
U.S. state taxing jurisdictions | Expiration Date 2016
Net operating loss (NOL) carryforwards
NOL carryforwards	0
U.S. state taxing jurisdictions | Expiration Date 2017
Net operating loss (NOL) carryforwards
NOL carryforwards	6
U.S. state taxing jurisdictions | Expiration Date 2018-2029
Net operating loss (NOL) carryforwards
NOL carryforwards	212
Non-U.S. taxing jurisdictions
Net operating loss (NOL) carryforwards
NOL carryforwards	176
NOL carryforwards, Valuation allowance	3
Non-U.S. taxing jurisdictions | Expiration Date 2014
Net operating loss (NOL) carryforwards
NOL carryforwards	2
Non-U.S. taxing jurisdictions | Expiration Date 2015
Net operating loss (NOL) carryforwards
NOL carryforwards	3
Non-U.S. taxing jurisdictions | Expiration Date 2016
Net operating loss (NOL) carryforwards
NOL carryforwards	1
Non-U.S. taxing jurisdictions | Expiration Date 2017
Net operating loss (NOL) carryforwards
NOL carryforwards	1
Non-U.S. taxing jurisdictions | Expiration Date 2018-2029
Net operating loss (NOL) carryforwards
NOL carryforwards	32
Non-U.S. taxing jurisdictions | Unlimited
Net operating loss (NOL) carryforwards
NOL carryforwards	$ 137