Accumulated Other Comprehensive Income (AOCI) Components (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Reclassification Adjustment out of Accumulated Other Comprehensive Income on Derivatives [Line Items]
Cost of Revenue	$ 14,015	$ 14,742	$ 42,191	$ 43,237
Interest expense	79	78	246	213
Other Income (Expense)	(4)	(4)	(13)	(138)
Revenues	(14,827)	(15,832)	(44,758)	(45,845)
Asset impairment, exit, and restructuring costs	107	11	140	36
Earnings Before Income Taxes	(225)	(480)	(1,066)	(1,193)
Tax	(30)	(136)	(256)	(331)
Net Earnings Including Noncontrolling Interests	(195)	(344)	(810)	(862)
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)	0	2	0	75
Tax	0	0	0	0
Net Earnings Including Noncontrolling Interests	0	2	0	75
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	15	37	20	61
Interest expense	0	2	0	2
Other Income (Expense)	0	3	2	25
Revenues	0	9	0	14
Earnings Before Income Taxes	15	51	22	102
Tax	5	19	8	38
Net Earnings Including Noncontrolling Interests	10	32	14	64
Reclassification out of Accumulated Other Comprehensive Income [Member] | Pension Liability Adjustment [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income on Derivatives [Line Items]
Earnings Before Income Taxes	14	10	42	32
Tax	5	4	15	7
Net Earnings Including Noncontrolling Interests	9	6	27	25
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	0	6	0	6
Tax	0	0	0	0
Net Earnings Including Noncontrolling Interests	0	6	0	6
Selling, General and Administrative Expenses [Member] | 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)	(2)	(5)	(8)	(12)
Actuarial Losses	$ 16	$ 15	$ 50	$ 44