Leases (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019	Dec. 31, 2019
Lessee, Lease, Description [Line Items]
Operating lease right-of-use asset	$ 616		$ 624
Operating lease liability	637		647
Operating lease expense	50	$ 49
Amortization of financing lease right-of-use assets	3	4
Interest expense on financing lease liabilities	2	2
Property, plant and equipment, net	4,416		4,454
Energy Segment
Lessee, Lease, Description [Line Items]
Operating lease right-of-use asset	44		48
Operating lease liability	$ 44		$ 48
Operating lease weighted average lease term, lessee	3 years 6 months		3 years 8 months 12 days
Operating lease weighted average discount rate, lessee (percent)	5.60%		5.60%
Property, plant and equipment, net	$ 2,866		$ 2,888
Automotive Segment
Lessee, Lease, Description [Line Items]
Operating lease right-of-use asset	492		501
Operating lease liability	$ 516		$ 527
Operating lease weighted average lease term, lessee	5 years		5 years 2 months 12 days
Operating lease weighted average discount rate, lessee (percent)	5.70%		5.70%
Operating lease expense	$ 43	40
Property, plant and equipment, net	904		$ 916
Food Packaging Segment
Lessee, Lease, Description [Line Items]
Operating lease right-of-use asset	32		34
Operating lease liability	$ 36		$ 38
Operating lease weighted average lease term, lessee	11 years 8 months 12 days		11 years 8 months 12 days
Operating lease weighted average discount rate, lessee (percent)	7.40%		7.40%
Property, plant and equipment, net	$ 154		$ 161
Other Segments and Holding Company
Lessee, Lease, Description [Line Items]
Operating lease right-of-use asset	48		41
Operating lease liability	41		34
Real Estate Segment
Lessee, Lease, Description [Line Items]
Property, plant and equipment, net	300		299
Operating lease rental revenue	8	$ 8
Assets leased to others | Real Estate Segment
Lessee, Lease, Description [Line Items]
Property, plant and equipment, net	224		222
Other assets [Member]
Lessee, Lease, Description [Line Items]
Operating lease right-of-use asset	616		624
Accrued expenses and other liabilities
Lessee, Lease, Description [Line Items]
Operating lease liability	637		647
Property, plant and equipment, net [Member]
Lessee, Lease, Description [Line Items]
Financing lease right-of-use asset	74		77
Debt
Lessee, Lease, Description [Line Items]
Financing lease liability	$ 89		$ 93