Earnings Per Share (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Net Income (Loss) Attributable to Common Shareowners
Income (loss) from continuing operations	$ 3,897	$ (3,109)	$ 3,510
Income (loss) from discontinued operations attributable to common shareowners	(33)	(410)	2,027
Net income (loss) attributable to common shareowners	$ 3,864	$ (3,519)	$ 5,537
Basic weighted average number of shares outstanding	1,501.6	1,357.8	854.8
Stock awards and equity units (share equivalent)	6.9	0.0	9.1
Diluted weighted average number of shares outstanding	1,508.5	1,357.8	863.9
Earnings (loss) per share attributable to common shareowners - basic
Income (loss) from continuing operations	$ 2.60	$ (2.29)	$ 4.11
Income (loss) from discontinued operations	(0.03)	(0.30)	2.37
Net income (loss) attributable to common shareowners	2.57	(2.59)	6.48
Earnings Per Share of Common Stock - Diluted
Income (loss) from continuing operations	2.58	(2.29)	4.06
Income (loss) from discontinued operations	(0.02)	(0.30)	2.35
Net income (loss) attributable to common shareowners	$ 2.56	$ (2.59)	$ 6.41
Antidilutive securities excluded from computation of earnings per share amount	13.4	32.5	8.3