Income Taxes - Narrative (Details) $ in Millions	12 Months Ended
	Dec. 31, 2016 USD ($)	Dec. 31, 2015 USD ($)	Dec. 31, 2014 USD ($)
Income Taxes [Abstract]
Income tax expense (benefit)	$ 202	$ 164	$ (42)
Effective income tax (benefit) expense rate	9.50%	(7.70%)	2.40%
Income Tax Rate excluding net tax benefit of litigation settlements, related legal costs and gain on sale of the Aerospace businesses			7.60%
Effective Income Tax Rate Continuing Operations, Excluding Litigation Settlement Benefit, Percentage			5.20%
Undistributed earnings of United States and other foreign subsidiaries where no provision has been made	$ 17,300
Unrecognized tax benefits netted against deferred tax asset for a loss or other carryforward under ASU 2013-11	331	$ 262
Unrecognized tax benefits that would impact effective tax rate	529
Income tax examination, penalties and interest accrued	$ 94	$ 108
Recoverability of Deferred Income Tax Assets [Abstract]
Number of years of cumulative pretax income in a particular jurisdiction to determine deferred tax assets will not be recognized	P3Y
Number of years of cumulative pretax losses in particular jurisdiction to determine if deferred tax assets can be recognized	P3Y
Number of years estimated to resolve Brazilian tax assessment	10
2011 Notice [Member]
Income Taxes [Abstract]
IRS Statutory Notice of Deficiency proposed assessment of additional taxes	$ 75
Penalties associated with IRS Statutory Notice of Deficiency proposed assessment	52
2014 Notice [Member]
Income Taxes [Abstract]
IRS Statutory Notice of Deficiency proposed assessment of additional taxes	190
Penalties associated with IRS Statutory Notice of Deficiency proposed assessment	72
2010 Notice [Member]
Income Taxes [Abstract]
Brazil tax assessment, plus interest and penalties	51
2014 Notice [Member]
Income Taxes [Abstract]
Brazil tax assessment, plus interest and penalties	$ 39