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Benefit Plans - Additional Information (Details) $ in Millions		3 Months Ended	9 Months Ended
	Jul. 11, 2019 USD ($)	Jun. 30, 2019 USD ($)	Sep. 30, 2019 USD ($)	Dec. 31, 2018 USD ($)	Jun. 30, 2018 arrangement
U.S. Plans | Multiemployer Plans, Pension | Fund | BCTGM
Defined Benefit Plan Disclosure [Line Items]
Multiemployer plan, number of expired collective-bargaining arrangements | arrangement					8
U.S. Plans | Multiemployer Plans, Pension | Fund | BCTGM | North America
Defined Benefit Plan Disclosure [Line Items]
Multiemployer plan, withdrawal liability	$ 526		$ 394	$ 429
Multiemployer plan, withdrawal obligation term	20 years
U.S. Plans | Multiemployer Plans, Pension | Selling, general and administrative expenses | Fund | BCTGM | North America
Defined Benefit Plan Disclosure [Line Items]
Multiemployer plan, final adjustment to reduce withdrawal liability		$ 35
Pension Plans | U.S. Plans
Defined Benefit Plan Disclosure [Line Items]
Employer contribution			5
Estimated future employer contributions			1
Pension Plans | Non-U.S. Plans
Defined Benefit Plan Disclosure [Line Items]
Employer contribution			185
Estimated future employer contributions			51
Pension Plans | United Kingdom and Ireland
Defined Benefit Plan Disclosure [Line Items]
Employer contribution			104
Other current liabilities | U.S. Plans | Multiemployer Plans, Pension | Fund | BCTGM | North America
Defined Benefit Plan Disclosure [Line Items]
Multiemployer plan, withdrawal liability			14
Long-term other liabilities | U.S. Plans | Multiemployer Plans, Pension | Fund | BCTGM | North America
Defined Benefit Plan Disclosure [Line Items]
Multiemployer plan, withdrawal liability			$ 380

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