Lease Commitments - Other Information (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Lessee, Lease, Description [Line Items]
Amortization of ROU assets	$ 5	$ 5	$ 14	$ 11
Interest on lease liabilities	3	1	9	1
Lease, Cost	200	306	673	667
Short-term lease cost	42	139	146	295
Variable lease cost	11	55	73	115
Operating cash flows			401	164
Investing cash flows			59	83
Financing cash flows			15	11
Property, plant and equipment, net
Lessee, Lease, Description [Line Items]
Operating lease costs	24	139	153	321
Cost of sales
Lessee, Lease, Description [Line Items]
Operating lease costs	131	135	417	273
Selling, general and administrative expenses
Lessee, Lease, Description [Line Items]
Operating lease costs	$ 37	$ 26	$ 80	$ 61