Acquisitions (Details) $ in Millions		12 Months Ended
	Jul. 01, 2016 USD ($)	Dec. 31, 2018 USD ($) acquisition	Dec. 31, 2017 USD ($)	Dec. 31, 2016 USD ($)
Business Acquisition [Line Items]
Number of businesses acquired | acquisition		0
Net cash paid for acquisitions		$ 0	$ 3	$ 453
Finite-lived intangible assets, weighted average useful life		16 years
Series of Individually Immaterial Business Acquisitions
Business Acquisition [Line Items]
Net cash paid for acquisitions			$ 3	$ 453
Engineered Fasteners and Components
Business Acquisition [Line Items]
Net cash paid for acquisitions	$ 450
Goodwill acquired	187
Acquired goodwill expected to be tax deductible	104
Customer Relationships and Technology | Engineered Fasteners and Components
Business Acquisition [Line Items]
Intangible assets acquired	$ 134
Minimum
Business Acquisition [Line Items]
Finite-lived intangible assets, remaining amortization period		4 years
Maximum
Business Acquisition [Line Items]
Finite-lived intangible assets, remaining amortization period		17 years