Accumulated Other Comprehensive Income (AOCI) Components (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Reclassification Adjustment out of Accumulated Other Comprehensive Income on Derivatives [Line Items]
Other Income (Expense)	$ (4)	$ 143	$ (138)	$ 30
Cost of Revenue	14,727	15,476	43,187	48,102
Interest expense	78	69	213	235
Revenues	(15,832)	(16,565)	(45,845)	(51,257)
Asset impairment, exit, and restructuring costs	11	65	36	96
Earnings Before Income Taxes	(480)	(367)	(1,193)	(1,583)
Tax	136	114	331	454
Net Earnings Including Noncontrolling Interests	(344)	(253)	(862)	(1,129)
Reclassification out of Accumulated Other Comprehensive Income [Member] | Foreign Currency Translation Adjustment [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income on Derivatives [Line Items]
Other Income (Expense)	(2)	(29)	(75)	(29)
Tax	0	0	0	0
Net Earnings Including Noncontrolling Interests	(2)	(29)	(75)	(29)
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]
Other Income (Expense)	3	(6)	25	(27)
Cost of Revenue	37	(2)	61	15
Interest expense	2	0	2	0
Revenues	9	(4)	14	(49)
Earnings Before Income Taxes	51	(12)	102	(61)
Tax	(19)	5	(38)	23
Net Earnings Including Noncontrolling Interests	32	(7)	64	(38)
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)	(5)	(4)	(12)	(17)
Actuarial (gains ) losses	15	19	44	61
Asset impairment, exit, and restructuring costs	0	15	0	15
Earnings Before Income Taxes	10	30	32	59
Tax	(4)	(7)	(7)	(24)
Net Earnings Including Noncontrolling Interests	6	23	25	35
Reclassification out of Accumulated Other Comprehensive Income [Member] | Unrealized (Gain) Loss On Investments [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income on Derivatives [Line Items]
Asset impairment, exit, and restructuring costs	6	0	6	0
Tax	0	0	0	0
Net Earnings Including Noncontrolling Interests	$ 6	$ 0	$ 6	$ 0