Employee Benefit Plans - Defined Benefit Plans Assets Measured at Fair Value (Details) - USD ($) $ in Millions		Dec. 31, 2016		Dec. 31, 2015
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Reverse Repurchase Agreements Segregated under Securities Exchange Commission Regulation		$ 116
United States Pension Plan of US Entity [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Defined Benefit Plan Fair Value Of Plan Assets Levels 1, 2 and 3		2,774		$ 2,806
Defined Benefit Plan Net Asset Value Of Plan Assets Excluding Non Financial Assets Net	[1]	819		733
Pension Fair Value, Level One, Other Assets		15		(103)
United States Pension Plan of US Entity [Member] | Cash and cash equivalents [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Defined Benefit Plan Fair Value Of Plan Assets Levels 1, 2 and 3		0		171
Defined Benefit Plan Net Asset Value Of Plan Assets Excluding Non Financial Assets Net	[1]	0		0
Foreign Pension Plan [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Defined Benefit Plan Fair Value Of Plan Assets Levels 1, 2 and 3		5,384		5,353
Defined Benefit Plan Net Asset Value Of Plan Assets Excluding Non Financial Assets Net	[1]	720		746
Pension Fair Value, Level One, Other Assets		6		5
Foreign Pension Plan [Member] | Cash and cash equivalents [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Defined Benefit Plan Fair Value Of Plan Assets Levels 1, 2 and 3		544		577
Defined Benefit Plan Net Asset Value Of Plan Assets Excluding Non Financial Assets Net	[1]	0		0
Foreign Pension Plan [Member] | Other [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Defined Benefit Plan Fair Value Of Plan Assets Levels 1, 2 and 3	[2]			55
Fair Value, Inputs, Level 1 [Member] | United States Pension Plan of US Entity [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Defined Benefit Plan Fair Value Of Plan Assets Levels 1, 2 and 3		629		777
Fair Value, Inputs, Level 1 [Member] | United States Pension Plan of US Entity [Member] | Cash and cash equivalents [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Defined Benefit Plan Fair Value Of Plan Assets Levels 1, 2 and 3		0		171
Fair Value, Inputs, Level 1 [Member] | United States Pension Plan of US Entity [Member] | Other [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Defined Benefit Plan Fair Value Of Plan Assets Levels 1, 2 and 3	[2]			(103)
Fair Value, Inputs, Level 1 [Member] | Foreign Pension Plan [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Defined Benefit Plan Fair Value Of Plan Assets Levels 1, 2 and 3		1,174		1,799
Fair Value, Inputs, Level 1 [Member] | Foreign Pension Plan [Member] | Cash and cash equivalents [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Defined Benefit Plan Fair Value Of Plan Assets Levels 1, 2 and 3		544		577
Fair Value, Inputs, Level 1 [Member] | Foreign Pension Plan [Member] | Other [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Defined Benefit Plan Fair Value Of Plan Assets Levels 1, 2 and 3	[2]			5
Fair Value, Inputs, Level 2 [Member] | United States Pension Plan of US Entity [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Defined Benefit Plan Fair Value Of Plan Assets Levels 1, 2 and 3		1,314		1,279
Fair Value, Inputs, Level 2 [Member] | United States Pension Plan of US Entity [Member] | Cash and cash equivalents [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Defined Benefit Plan Fair Value Of Plan Assets Levels 1, 2 and 3		0		0
Fair Value, Inputs, Level 2 [Member] | United States Pension Plan of US Entity [Member] | Other [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Defined Benefit Plan Fair Value Of Plan Assets Levels 1, 2 and 3	[2]			(1)
Fair Value, Inputs, Level 2 [Member] | Foreign Pension Plan [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Defined Benefit Plan Fair Value Of Plan Assets Levels 1, 2 and 3		3,259		2,539
Fair Value, Inputs, Level 2 [Member] | Foreign Pension Plan [Member] | Cash and cash equivalents [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Defined Benefit Plan Fair Value Of Plan Assets Levels 1, 2 and 3		0		0
Fair Value, Inputs, Level 2 [Member] | Foreign Pension Plan [Member] | Other [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Defined Benefit Plan Fair Value Of Plan Assets Levels 1, 2 and 3	[2]			50
Fair Value, Inputs, Level 3 [Member] | United States Pension Plan of US Entity [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Defined Benefit Plan Fair Value Of Plan Assets Levels 1, 2 and 3		12		17
Fair Value, Inputs, Level 3 [Member] | United States Pension Plan of US Entity [Member] | Cash and cash equivalents [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Defined Benefit Plan Fair Value Of Plan Assets Levels 1, 2 and 3		0		0
Fair Value, Inputs, Level 3 [Member] | United States Pension Plan of US Entity [Member] | Other [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Defined Benefit Plan Fair Value Of Plan Assets Levels 1, 2 and 3	[2]			0
Fair Value, Inputs, Level 3 [Member] | Foreign Pension Plan [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Defined Benefit Plan Fair Value Of Plan Assets Levels 1, 2 and 3		231		269
Fair Value, Inputs, Level 3 [Member] | Foreign Pension Plan [Member] | Cash and cash equivalents [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Defined Benefit Plan Fair Value Of Plan Assets Levels 1, 2 and 3		0		0
Fair Value, Inputs, Level 3 [Member] | Foreign Pension Plan [Member] | Other [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Defined Benefit Plan Fair Value Of Plan Assets Levels 1, 2 and 3	[2]			0
US Equity Securities [Member] | United States Pension Plan of US Entity [Member] | Equity Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Defined Benefit Plan Fair Value Of Plan Assets Levels 1, 2 and 3		388		400
Defined Benefit Plan Net Asset Value Of Plan Assets Excluding Non Financial Assets Net	[1]	68		20
US Equity Securities [Member] | Foreign Pension Plan [Member] | Equity Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Defined Benefit Plan Fair Value Of Plan Assets Levels 1, 2 and 3		308		238
Defined Benefit Plan Net Asset Value Of Plan Assets Excluding Non Financial Assets Net	[1]	0		0
US Equity Securities [Member] | Fair Value, Inputs, Level 1 [Member] | United States Pension Plan of US Entity [Member] | Equity Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Defined Benefit Plan Fair Value Of Plan Assets Levels 1, 2 and 3		320		380
US Equity Securities [Member] | Fair Value, Inputs, Level 1 [Member] | Foreign Pension Plan [Member] | Equity Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Defined Benefit Plan Fair Value Of Plan Assets Levels 1, 2 and 3		266		200
US Equity Securities [Member] | Fair Value, Inputs, Level 2 [Member] | United States Pension Plan of US Entity [Member] | Equity Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Defined Benefit Plan Fair Value Of Plan Assets Levels 1, 2 and 3		0		0
US Equity Securities [Member] | Fair Value, Inputs, Level 2 [Member] | Foreign Pension Plan [Member] | Equity Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Defined Benefit Plan Fair Value Of Plan Assets Levels 1, 2 and 3		42		38
US Equity Securities [Member] | Fair Value, Inputs, Level 3 [Member] | United States Pension Plan of US Entity [Member] | Equity Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Defined Benefit Plan Fair Value Of Plan Assets Levels 1, 2 and 3		0		0
US Equity Securities [Member] | Fair Value, Inputs, Level 3 [Member] | Foreign Pension Plan [Member] | Equity Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Defined Benefit Plan Fair Value Of Plan Assets Levels 1, 2 and 3		0		0
International Equity Securities [Member] | United States Pension Plan of US Entity [Member] | Equity Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Defined Benefit Plan Fair Value Of Plan Assets Levels 1, 2 and 3		418		445
Defined Benefit Plan Net Asset Value Of Plan Assets Excluding Non Financial Assets Net	[1]	160		157
International Equity Securities [Member] | Foreign Pension Plan [Member] | Equity Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Defined Benefit Plan Fair Value Of Plan Assets Levels 1, 2 and 3		1,207		1,163
Defined Benefit Plan Net Asset Value Of Plan Assets Excluding Non Financial Assets Net	[1]	127		112
International Equity Securities [Member] | Fair Value, Inputs, Level 1 [Member] | United States Pension Plan of US Entity [Member] | Equity Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Defined Benefit Plan Fair Value Of Plan Assets Levels 1, 2 and 3		258		287
International Equity Securities [Member] | Fair Value, Inputs, Level 1 [Member] | Foreign Pension Plan [Member] | Equity Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Defined Benefit Plan Fair Value Of Plan Assets Levels 1, 2 and 3		358		1,011
International Equity Securities [Member] | Fair Value, Inputs, Level 2 [Member] | United States Pension Plan of US Entity [Member] | Equity Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Defined Benefit Plan Fair Value Of Plan Assets Levels 1, 2 and 3		0		1
International Equity Securities [Member] | Fair Value, Inputs, Level 2 [Member] | Foreign Pension Plan [Member] | Equity Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Defined Benefit Plan Fair Value Of Plan Assets Levels 1, 2 and 3		722		40
International Equity Securities [Member] | Fair Value, Inputs, Level 3 [Member] | United States Pension Plan of US Entity [Member] | Equity Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Defined Benefit Plan Fair Value Of Plan Assets Levels 1, 2 and 3		0		0
International Equity Securities [Member] | Fair Value, Inputs, Level 3 [Member] | Foreign Pension Plan [Member] | Equity Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Defined Benefit Plan Fair Value Of Plan Assets Levels 1, 2 and 3		0		0
US Treasury Securities [Member] | United States Pension Plan of US Entity [Member] | Fixed Income Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Defined Benefit Plan Fair Value Of Plan Assets Levels 1, 2 and 3		233		216
Defined Benefit Plan Net Asset Value Of Plan Assets Excluding Non Financial Assets Net	[1]	0		0
US Treasury Securities [Member] | Foreign Pension Plan [Member] | Fixed Income Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Defined Benefit Plan Fair Value Of Plan Assets Levels 1, 2 and 3		44		48
Defined Benefit Plan Net Asset Value Of Plan Assets Excluding Non Financial Assets Net	[1]	0		0
US Treasury Securities [Member] | Fair Value, Inputs, Level 1 [Member] | United States Pension Plan of US Entity [Member] | Fixed Income Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Defined Benefit Plan Fair Value Of Plan Assets Levels 1, 2 and 3		0		0
US Treasury Securities [Member] | Fair Value, Inputs, Level 1 [Member] | Foreign Pension Plan [Member] | Fixed Income Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Defined Benefit Plan Fair Value Of Plan Assets Levels 1, 2 and 3		0		0
US Treasury Securities [Member] | Fair Value, Inputs, Level 2 [Member] | United States Pension Plan of US Entity [Member] | Fixed Income Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Defined Benefit Plan Fair Value Of Plan Assets Levels 1, 2 and 3		233		216
US Treasury Securities [Member] | Fair Value, Inputs, Level 2 [Member] | Foreign Pension Plan [Member] | Fixed Income Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Defined Benefit Plan Fair Value Of Plan Assets Levels 1, 2 and 3		44		48
US Treasury Securities [Member] | Fair Value, Inputs, Level 3 [Member] | United States Pension Plan of US Entity [Member] | Fixed Income Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Defined Benefit Plan Fair Value Of Plan Assets Levels 1, 2 and 3		0		0
US Treasury Securities [Member] | Fair Value, Inputs, Level 3 [Member] | Foreign Pension Plan [Member] | Fixed Income Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Defined Benefit Plan Fair Value Of Plan Assets Levels 1, 2 and 3		0		0
Debt security issued by government agency [Member] | United States Pension Plan of US Entity [Member] | Fixed Income Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Defined Benefit Plan Fair Value Of Plan Assets Levels 1, 2 and 3		65		156
Defined Benefit Plan Net Asset Value Of Plan Assets Excluding Non Financial Assets Net	[1]	0		0
Debt security issued by government agency [Member] | Foreign Pension Plan [Member] | Fixed Income Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Defined Benefit Plan Fair Value Of Plan Assets Levels 1, 2 and 3		1,654		1,602
Defined Benefit Plan Net Asset Value Of Plan Assets Excluding Non Financial Assets Net	[1]	0		0
Debt security issued by government agency [Member] | Fair Value, Inputs, Level 1 [Member] | United States Pension Plan of US Entity [Member] | Fixed Income Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Defined Benefit Plan Fair Value Of Plan Assets Levels 1, 2 and 3		0		0
Debt security issued by government agency [Member] | Fair Value, Inputs, Level 1 [Member] | Foreign Pension Plan [Member] | Fixed Income Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Defined Benefit Plan Fair Value Of Plan Assets Levels 1, 2 and 3		0		3
Debt security issued by government agency [Member] | Fair Value, Inputs, Level 2 [Member] | United States Pension Plan of US Entity [Member] | Fixed Income Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Defined Benefit Plan Fair Value Of Plan Assets Levels 1, 2 and 3		65		156
Debt security issued by government agency [Member] | Fair Value, Inputs, Level 2 [Member] | Foreign Pension Plan [Member] | Fixed Income Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Defined Benefit Plan Fair Value Of Plan Assets Levels 1, 2 and 3		1,654		1,599
Debt security issued by government agency [Member] | Fair Value, Inputs, Level 3 [Member] | United States Pension Plan of US Entity [Member] | Fixed Income Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Defined Benefit Plan Fair Value Of Plan Assets Levels 1, 2 and 3		0		0
Debt security issued by government agency [Member] | Fair Value, Inputs, Level 3 [Member] | Foreign Pension Plan [Member] | Fixed Income Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Defined Benefit Plan Fair Value Of Plan Assets Levels 1, 2 and 3		0		0
Corporate Bond Securities [Member] | United States Pension Plan of US Entity [Member] | Fixed Income Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Defined Benefit Plan Fair Value Of Plan Assets Levels 1, 2 and 3		1,052		913
Defined Benefit Plan Net Asset Value Of Plan Assets Excluding Non Financial Assets Net	[1]	0		0
Corporate Bond Securities [Member] | Foreign Pension Plan [Member] | Fixed Income Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Defined Benefit Plan Fair Value Of Plan Assets Levels 1, 2 and 3		618		695
Defined Benefit Plan Net Asset Value Of Plan Assets Excluding Non Financial Assets Net	[1]	0		0
Corporate Bond Securities [Member] | Fair Value, Inputs, Level 1 [Member] | United States Pension Plan of US Entity [Member] | Fixed Income Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Defined Benefit Plan Fair Value Of Plan Assets Levels 1, 2 and 3		0		0
Corporate Bond Securities [Member] | Fair Value, Inputs, Level 1 [Member] | Foreign Pension Plan [Member] | Fixed Income Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Defined Benefit Plan Fair Value Of Plan Assets Levels 1, 2 and 3		0		3
Corporate Bond Securities [Member] | Fair Value, Inputs, Level 2 [Member] | United States Pension Plan of US Entity [Member] | Fixed Income Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Defined Benefit Plan Fair Value Of Plan Assets Levels 1, 2 and 3		1,052		913
Corporate Bond Securities [Member] | Fair Value, Inputs, Level 2 [Member] | Foreign Pension Plan [Member] | Fixed Income Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Defined Benefit Plan Fair Value Of Plan Assets Levels 1, 2 and 3		618		692
Corporate Bond Securities [Member] | Fair Value, Inputs, Level 3 [Member] | United States Pension Plan of US Entity [Member] | Fixed Income Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Defined Benefit Plan Fair Value Of Plan Assets Levels 1, 2 and 3		0		0
Corporate Bond Securities [Member] | Fair Value, Inputs, Level 3 [Member] | Foreign Pension Plan [Member] | Fixed Income Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Defined Benefit Plan Fair Value Of Plan Assets Levels 1, 2 and 3		0		0
Asset-backed Securities [Member] | United States Pension Plan of US Entity [Member] | Fixed Income Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Defined Benefit Plan Fair Value Of Plan Assets Levels 1, 2 and 3		2		2
Defined Benefit Plan Net Asset Value Of Plan Assets Excluding Non Financial Assets Net	[1]	0		0
Asset-backed Securities [Member] | Foreign Pension Plan [Member] | Fixed Income Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Defined Benefit Plan Fair Value Of Plan Assets Levels 1, 2 and 3		1		1
Defined Benefit Plan Net Asset Value Of Plan Assets Excluding Non Financial Assets Net	[1]	0		0
Asset-backed Securities [Member] | Fair Value, Inputs, Level 1 [Member] | United States Pension Plan of US Entity [Member] | Fixed Income Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Defined Benefit Plan Fair Value Of Plan Assets Levels 1, 2 and 3		0		0
Asset-backed Securities [Member] | Fair Value, Inputs, Level 1 [Member] | Foreign Pension Plan [Member] | Fixed Income Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Defined Benefit Plan Fair Value Of Plan Assets Levels 1, 2 and 3		0		0
Asset-backed Securities [Member] | Fair Value, Inputs, Level 2 [Member] | United States Pension Plan of US Entity [Member] | Fixed Income Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Defined Benefit Plan Fair Value Of Plan Assets Levels 1, 2 and 3		2		2
Asset-backed Securities [Member] | Fair Value, Inputs, Level 2 [Member] | Foreign Pension Plan [Member] | Fixed Income Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Defined Benefit Plan Fair Value Of Plan Assets Levels 1, 2 and 3		1		1
Asset-backed Securities [Member] | Fair Value, Inputs, Level 3 [Member] | United States Pension Plan of US Entity [Member] | Fixed Income Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Defined Benefit Plan Fair Value Of Plan Assets Levels 1, 2 and 3		0		0
Asset-backed Securities [Member] | Fair Value, Inputs, Level 3 [Member] | Foreign Pension Plan [Member] | Fixed Income Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Defined Benefit Plan Fair Value Of Plan Assets Levels 1, 2 and 3		0		0
Real estate [Member] | United States Pension Plan of US Entity [Member] | Real estate [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Defined Benefit Plan Fair Value Of Plan Assets Levels 1, 2 and 3		82		98
Defined Benefit Plan Net Asset Value Of Plan Assets Excluding Non Financial Assets Net	[1]	34		39
Real estate [Member] | Foreign Pension Plan [Member] | Real estate [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Defined Benefit Plan Fair Value Of Plan Assets Levels 1, 2 and 3		289		299
Defined Benefit Plan Net Asset Value Of Plan Assets Excluding Non Financial Assets Net	[1]	168		154
Real estate [Member] | Fair Value, Inputs, Level 1 [Member] | United States Pension Plan of US Entity [Member] | Real estate [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Defined Benefit Plan Fair Value Of Plan Assets Levels 1, 2 and 3		36		42
Real estate [Member] | Fair Value, Inputs, Level 1 [Member] | Foreign Pension Plan [Member] | Real estate [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Defined Benefit Plan Fair Value Of Plan Assets Levels 1, 2 and 3		0		0
Real estate [Member] | Fair Value, Inputs, Level 2 [Member] | United States Pension Plan of US Entity [Member] | Real estate [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Defined Benefit Plan Fair Value Of Plan Assets Levels 1, 2 and 3		0		0
Real estate [Member] | Fair Value, Inputs, Level 2 [Member] | Foreign Pension Plan [Member] | Real estate [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Defined Benefit Plan Fair Value Of Plan Assets Levels 1, 2 and 3		0		0
Real estate [Member] | Fair Value, Inputs, Level 3 [Member] | United States Pension Plan of US Entity [Member] | Real estate [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Defined Benefit Plan Fair Value Of Plan Assets Levels 1, 2 and 3		12		17
Real estate [Member] | Fair Value, Inputs, Level 3 [Member] | Foreign Pension Plan [Member] | Real estate [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Defined Benefit Plan Fair Value Of Plan Assets Levels 1, 2 and 3		121		145
Private Equity Or Venture Capital [Member] | United States Pension Plan of US Entity [Member] | Private Equity Or Venture Capital [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Defined Benefit Plan Fair Value Of Plan Assets Levels 1, 2 and 3		490		499
Defined Benefit Plan Net Asset Value Of Plan Assets Excluding Non Financial Assets Net	[1]	490		499
Private Equity Or Venture Capital [Member] | Foreign Pension Plan [Member] | Private Equity Or Venture Capital [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Defined Benefit Plan Fair Value Of Plan Assets Levels 1, 2 and 3		491		550
Defined Benefit Plan Net Asset Value Of Plan Assets Excluding Non Financial Assets Net	[1]	425		480
Private Equity Or Venture Capital [Member] | Fair Value, Inputs, Level 1 [Member] | United States Pension Plan of US Entity [Member] | Private Equity Or Venture Capital [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Defined Benefit Plan Fair Value Of Plan Assets Levels 1, 2 and 3		0		0
Private Equity Or Venture Capital [Member] | Fair Value, Inputs, Level 1 [Member] | Foreign Pension Plan [Member] | Private Equity Or Venture Capital [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Defined Benefit Plan Fair Value Of Plan Assets Levels 1, 2 and 3		0		0
Private Equity Or Venture Capital [Member] | Fair Value, Inputs, Level 2 [Member] | United States Pension Plan of US Entity [Member] | Private Equity Or Venture Capital [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Defined Benefit Plan Fair Value Of Plan Assets Levels 1, 2 and 3		0		0
Private Equity Or Venture Capital [Member] | Fair Value, Inputs, Level 2 [Member] | Foreign Pension Plan [Member] | Private Equity Or Venture Capital [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Defined Benefit Plan Fair Value Of Plan Assets Levels 1, 2 and 3		60		66
Private Equity Or Venture Capital [Member] | Fair Value, Inputs, Level 3 [Member] | United States Pension Plan of US Entity [Member] | Private Equity Or Venture Capital [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Defined Benefit Plan Fair Value Of Plan Assets Levels 1, 2 and 3		0		0
Private Equity Or Venture Capital [Member] | Fair Value, Inputs, Level 3 [Member] | Foreign Pension Plan [Member] | Private Equity Or Venture Capital [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Defined Benefit Plan Fair Value Of Plan Assets Levels 1, 2 and 3		6		4
Guaranteed Insurance Contracts [Member] | United States Pension Plan of US Entity [Member] | Guaranteed Insurance Contracts [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Defined Benefit Plan Fair Value Of Plan Assets Levels 1, 2 and 3		0		0
Defined Benefit Plan Net Asset Value Of Plan Assets Excluding Non Financial Assets Net	[1]	0		0
Guaranteed Insurance Contracts [Member] | Foreign Pension Plan [Member] | Guaranteed Insurance Contracts [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Defined Benefit Plan Fair Value Of Plan Assets Levels 1, 2 and 3		104		120
Defined Benefit Plan Net Asset Value Of Plan Assets Excluding Non Financial Assets Net	[1]	0		0
Guaranteed Insurance Contracts [Member] | Fair Value, Inputs, Level 1 [Member] | United States Pension Plan of US Entity [Member] | Guaranteed Insurance Contracts [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Defined Benefit Plan Fair Value Of Plan Assets Levels 1, 2 and 3		0		0
Guaranteed Insurance Contracts [Member] | Fair Value, Inputs, Level 1 [Member] | Foreign Pension Plan [Member] | Guaranteed Insurance Contracts [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Defined Benefit Plan Fair Value Of Plan Assets Levels 1, 2 and 3		0		0
Guaranteed Insurance Contracts [Member] | Fair Value, Inputs, Level 2 [Member] | United States Pension Plan of US Entity [Member] | Guaranteed Insurance Contracts [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Defined Benefit Plan Fair Value Of Plan Assets Levels 1, 2 and 3		0		0
Guaranteed Insurance Contracts [Member] | Fair Value, Inputs, Level 2 [Member] | Foreign Pension Plan [Member] | Guaranteed Insurance Contracts [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Defined Benefit Plan Fair Value Of Plan Assets Levels 1, 2 and 3		0		0
Guaranteed Insurance Contracts [Member] | Fair Value, Inputs, Level 3 [Member] | United States Pension Plan of US Entity [Member] | Guaranteed Insurance Contracts [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Defined Benefit Plan Fair Value Of Plan Assets Levels 1, 2 and 3		0		0
Guaranteed Insurance Contracts [Member] | Fair Value, Inputs, Level 3 [Member] | Foreign Pension Plan [Member] | Guaranteed Insurance Contracts [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Defined Benefit Plan Fair Value Of Plan Assets Levels 1, 2 and 3		104		120
Defined Benefits Plan Assets, Other [Member] | United States Pension Plan of US Entity [Member] | Other [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Defined Benefit Plan Fair Value Of Plan Assets Levels 1, 2 and 3		82	[3]	(86)
Defined Benefit Plan Net Asset Value Of Plan Assets Excluding Non Financial Assets Net	[1],[3]	67		18
Defined Benefits Plan Assets, Other [Member] | Foreign Pension Plan [Member] | Other [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Defined Benefit Plan Fair Value Of Plan Assets Levels 1, 2 and 3	[3]	60
Defined Benefit Plan Net Asset Value Of Plan Assets Excluding Non Financial Assets Net	[1],[3]	0		0
Defined Benefits Plan Assets, Other [Member] | Fair Value, Inputs, Level 1 [Member] | United States Pension Plan of US Entity [Member] | Other [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Defined Benefit Plan Fair Value Of Plan Assets Levels 1, 2 and 3	[3]	15
Defined Benefits Plan Assets, Other [Member] | Fair Value, Inputs, Level 1 [Member] | Foreign Pension Plan [Member] | Other [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Defined Benefit Plan Fair Value Of Plan Assets Levels 1, 2 and 3	[3]	6
Defined Benefits Plan Assets, Other [Member] | Fair Value, Inputs, Level 2 [Member] | United States Pension Plan of US Entity [Member] | Other [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Defined Benefit Plan Fair Value Of Plan Assets Levels 1, 2 and 3	[3]	0
Defined Benefits Plan Assets, Other [Member] | Fair Value, Inputs, Level 2 [Member] | Foreign Pension Plan [Member] | Other [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Defined Benefit Plan Fair Value Of Plan Assets Levels 1, 2 and 3	[3]	54
Defined Benefits Plan Assets, Other [Member] | Fair Value, Inputs, Level 3 [Member] | United States Pension Plan of US Entity [Member] | Other [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Defined Benefit Plan Fair Value Of Plan Assets Levels 1, 2 and 3	[3]	0
Defined Benefits Plan Assets, Other [Member] | Fair Value, Inputs, Level 3 [Member] | Foreign Pension Plan [Member] | Other [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Defined Benefit Plan Fair Value Of Plan Assets Levels 1, 2 and 3	[3]	0
Derivative [Member] | United States Pension Plan of US Entity [Member] | Derivative [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Defined Benefit Plan Fair Value Of Plan Assets Levels 1, 2 and 3		(38)		(8)
Defined Benefit Plan Net Asset Value Of Plan Assets Excluding Non Financial Assets Net	[1]	0		0
Derivative [Member] | Foreign Pension Plan [Member] | Derivative [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Defined Benefit Plan Fair Value Of Plan Assets Levels 1, 2 and 3		64		5
Defined Benefit Plan Net Asset Value Of Plan Assets Excluding Non Financial Assets Net	[1]	0		0
Derivative [Member] | Fair Value, Inputs, Level 1 [Member] | United States Pension Plan of US Entity [Member] | Derivative [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Defined Benefit Plan Fair Value Of Plan Assets Levels 1, 2 and 3		0		0
Derivative [Member] | Fair Value, Inputs, Level 1 [Member] | Foreign Pension Plan [Member] | Derivative [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Defined Benefit Plan Fair Value Of Plan Assets Levels 1, 2 and 3		0		0
Derivative [Member] | Fair Value, Inputs, Level 2 [Member] | United States Pension Plan of US Entity [Member] | Derivative [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Defined Benefit Plan Fair Value Of Plan Assets Levels 1, 2 and 3		(38)		(8)
Derivative [Member] | Fair Value, Inputs, Level 2 [Member] | Foreign Pension Plan [Member] | Derivative [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Defined Benefit Plan Fair Value Of Plan Assets Levels 1, 2 and 3		64		5
Derivative [Member] | Fair Value, Inputs, Level 3 [Member] | United States Pension Plan of US Entity [Member] | Derivative [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Defined Benefit Plan Fair Value Of Plan Assets Levels 1, 2 and 3		0		0
Derivative [Member] | Fair Value, Inputs, Level 3 [Member] | Foreign Pension Plan [Member] | Derivative [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Defined Benefit Plan Fair Value Of Plan Assets Levels 1, 2 and 3		$ 0		$ 0

[1] Certain assets that are measured at fair value using the NAV per share (or its equivalent) practical expedient, have not been classified in the fair value hierarchy.

[2] Other Level 1 includes net non-financial (liabilities) assets of $(103) U.S. and $5 Non-U.S., respectively, such as due to/from broker, interest receivables and accrued expenses. In 2015, the US Plans' Other included plan liabilities of $116 related to unsettled transactions such as purchases or sales of US Treasury securities with settlement dates beyond fiscal year-end.

[3] Other Level 1 includes net non-financial assets of $15 U.S. and $6 Non-U.S., respectively, such as due to/from broker, interest receivables and accrued expenses.