Earnings Per Share (Tables)

3 Months Ended

Mar. 31, 2018

Earnings Per Share [Abstract]

Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]

	Quarter Ended March 31,
(dollars in millions, except per share amounts; shares in millions)	2018		2017
Net income attributable to common shareowners	$	1,297	$	1,386
Basic weighted average number of shares outstanding	789.9		793.5
Stock awards and equity units	10.5		8.8
Diluted weighted average number of shares outstanding	800.4		802.3
Earnings Per Share of Common Stock:
Basic	$	1.64	$	1.75
Diluted	1.62		1.73