Consolidated Statement of Operations - USD ($) shares in Millions, $ in Millions	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Net sales	$ 56,587	$ 45,349	$ 34,701
Research and development	2,582	2,452	1,878
Selling, general and administrative	5,540	3,711	2,864
Total Costs and Expenses	56,178	40,761	32,207
Goodwill impairment	(3,183)	0	0
Other income, net	885	326	383
Operating profit (loss)	(1,889)	4,914	2,877
Non-service pension benefit	(902)	(829)	(659)
Interest expense, net	1,366	1,591	1,032
Total non-operating expense, net	464	762	373
Income (loss) from continuing operations before income taxes	(2,353)	4,152	2,504
Income tax expense	575	421	1,098
Net income (loss) from continuing operations	(2,928)	3,731	1,406
Less: Noncontrolling interest in subsidiaries’ earnings from continuing operations	181	221	190
Income (loss) from continuing operations attributable to common shareowners	(3,109)	3,510	1,216
Income (loss) from discontinued operations	(216)	4,091	5,776
Income tax expense from discontinued operations	151	1,874	1,528
Net income (loss) from discontinued operations	(367)	2,217	4,248
Less: Noncontrolling interest in subsidiaries’ earnings from discontinued operations	43	190	195
Income (loss) from discontinued operations attributable to common shareowners	(410)	2,027	4,053
Net income (loss) attributable to common shareowners	$ (3,519)	$ 5,537	$ 5,269
Earnings (loss) per share attributable to common shareowners - basic
Income (loss) from continuing operations attributable to common shareowners	$ (2.29)	$ 4.11	$ 1.52
Income (loss) from discontinued operations	(0.30)	2.37	5.06
Net income (loss) attributable to common shareowners	(2.59)	6.48	6.58
Earnings (loss) per share attributable to common shareowners - diluted
Income (loss) from continuing operations attributable to common shareowners	(2.29)	4.06	1.50
Income (loss) from discontinued operations	(0.30)	2.35	5.00
Net income (loss) attributable to common shareowners	$ (2.59)	$ 6.41	$ 6.50
Weighted average number of shares outstanding:
Basic shares	1,357.8	854.8	800.4
Diluted shares	1,357.8	863.9	810.1
Product [Member]
Net sales	$ 43,319	$ 32,998	$ 24,141
Cost of Products and Services Sold	38,137	26,910	21,083
Service [Member]
Net sales	13,268	12,351	10,560
Cost of Products and Services Sold	$ 9,919	$ 7,688	$ 6,382