Shareowners' Equity (Other) (Details) - USD ($)	6 Months Ended
	Jun. 30, 2016	Dec. 31, 2015
Accelerated Share Repurchases [Line Items]
Repurchase program authorized amount	$ 750,000,000
Accelerated share repurchases initial price paid	$ 5,000,000,000
Accelerated share repurchases initial delivery of shares	142,474,019
Accelerated share repurchases settlement payment or receipt	$ 6,264,000,000
Treasury stock value	76,124,000,000	$ 63,539,000,000
Unsettled contract determined to be forward contract indexed to issuers equity	$ 0
Remaining shares related to ASR received	10,222,022
March 2016 with Deutsche Bank
Accelerated Share Repurchases [Line Items]
Treasury stock value	$ 4,250,000,000