Income Taxes (Details 5) $ in Millions	Dec. 31, 2016 USD ($)
Tax credit carryforwards
U.S. foreign tax credits available for carryforward	$ 41
U.S. state taxing jurisdictions
Net operating loss (NOL) carryforwards
NOL carryforwards	175
Gross deferred income tax asset associated with NOL carryforwards	13
NOL carryforwards, Valuation allowance	1
U.S. state taxing jurisdictions | Expiration Date 2017
Net operating loss (NOL) carryforwards
NOL carryforwards	2
U.S. state taxing jurisdictions | Expiration Date 2018
Net operating loss (NOL) carryforwards
NOL carryforwards	6
U.S. state taxing jurisdictions | Expiration Date 2019
Net operating loss (NOL) carryforwards
NOL carryforwards	4
U.S. state taxing jurisdictions | Expiration Date 2020
Net operating loss (NOL) carryforwards
NOL carryforwards	1
U.S. state taxing jurisdictions | Expiration Date 2021-2031
Net operating loss (NOL) carryforwards
NOL carryforwards	162
Non-U.S. taxing jurisdictions
Net operating loss (NOL) carryforwards
NOL carryforwards	80
NOL carryforwards, Valuation allowance	9
Non-U.S. taxing jurisdictions | Expiration Date 2017
Net operating loss (NOL) carryforwards
NOL carryforwards	0
Non-U.S. taxing jurisdictions | Expiration Date 2018
Net operating loss (NOL) carryforwards
NOL carryforwards	0
Non-U.S. taxing jurisdictions | Expiration Date 2019
Net operating loss (NOL) carryforwards
NOL carryforwards	0
Non-U.S. taxing jurisdictions | Expiration Date 2020
Net operating loss (NOL) carryforwards
NOL carryforwards	7
Non-U.S. taxing jurisdictions | Expiration Date 2021-2031
Net operating loss (NOL) carryforwards
NOL carryforwards	29
Non-U.S. taxing jurisdictions | Unlimited
Net operating loss (NOL) carryforwards
NOL carryforwards	$ 44