Earnings Per Share (Details) (USD $) In Millions, except Share data, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount			0	0
Net income from continuing operations	$ 1,680	$ 1,552	$ 2,893	$ 2,822
Income from discontinued operations	0	8	0	4
Net income attributable to common shareowners	$ 1,680	$ 1,560	$ 2,893	$ 2,826
Basic weighted average number of shares outstanding	900,100,000	901,100,000	900,300,000	901,000,000
Stock awards and equity units	14,600,000	13,000,000	14,500,000	12,800,000
Diluted weighted average number of shares outstanding	914,700,000	914,100,000	914,800,000	913,800,000
Net income from continuing operations	$ 1.87	$ 1.72	$ 3.21	$ 3.13
Income from Discontinued Operations and Disposal of Discontinued Operations, Net of Tax, Per Basic Share	$ 0.00	$ 0.01	$ 0.00	$ 0.01
Net income attributable to common shareowners	$ 1.87	$ 1.73	$ 3.21	$ 3.14
Net income from continuing operations	$ 1.84	$ 1.70	$ 3.16	$ 3.09
Income from Discontinued Operations and Disposal of Discontinued Operations, Net of Tax, Per Diluted Share	$ 0.00	$ 0.01	$ 0.00	$ 0.01
Net income attributable to common shareowners	$ 1.84	$ 1.71	$ 3.16	$ 3.09