Accumulated Other Comprehensive Income (AOCI) Components (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Reclassification Adjustment out of Accumulated Other Comprehensive Income on Derivatives [Line Items]
Cost of Revenue	$ 13,588	$ 16,404
Other Income (Expense)	19	(10)
Revenues	(14,384)	(17,506)
Earnings Before Income Taxes	(306)	(690)
Tax	76	197
Net Earnings Including Noncontrolling Interests	(230)	(493)
Reclassification out of Accumulated Other Comprehensive Income [Member] | Deferred (Gain) Loss On Hedging Activities [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income on Derivatives [Line Items]
Cost of Revenue	19	0
Other Income (Expense)	14	(17)
Revenues	(1)	(47)
Earnings Before Income Taxes	32	(64)
Tax	(11)	24
Net Earnings Including Noncontrolling Interests	21	(40)
Reclassification out of Accumulated Other Comprehensive Income [Member] | Pension Liability Adjustment [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income on Derivatives [Line Items]
Prior service cost (credit)	(4)	(2)
Actuarial (gains ) losses	14	27
Earnings Before Income Taxes	10	25
Tax	(1)	(17)
Net Earnings Including Noncontrolling Interests	$ 9	$ 8