Condensed Consolidated Balance Sheet - USD ($) $ in Millions	Mar. 31, 2019	Dec. 31, 2018
Statement of Financial Position [Abstract]
Cash and cash equivalents	$ 6,240	$ 6,152
Accounts receivable, net	13,574	14,271
Contract with Customer, Asset, Net, Current	3,795	3,486
Inventory, net	10,474	10,083
Other assets, current	1,319	1,511
Total Current Assets	35,402	35,503
Customer financing assets	3,182	3,023
Future income tax benefits	1,703	1,646
Fixed assets	24,351	24,084
Less: Accumulated depreciation	12,141	11,787
Fixed assets, net	12,210	12,297
Operating Lease, Right-of-Use Asset	2,533	0
Goodwill	48,392	48,112
Intangible assets, net	26,280	26,424
Other assets	7,678	7,206
Total Assets	137,380	134,211
Short-term borrowings	1,111	1,469
Accounts payable	10,364	11,080
Accrued liabilities	10,750	10,223
Contract with Customer, Liability, Current	6,107	5,720
Long-term debt currently due	3,071	2,876
Total Current Liabilities	31,403	31,368
Long-term debt	41,004	41,192
Future pension and postretirement benefit obligations	3,846	4,018
Operating Lease, Liability, Noncurrent	2,020	0
Other long-term liabilities	17,052	16,914
Total Liabilities	95,325	93,492
Commitments and contingent liabilities (Note 15)
Redeemable noncontrolling interest	109	109
Common Stock	22,564	22,514
Treasury Stock	32,511	32,482
Retained earnings	59,279	57,823
Unearned ESOP shares	75	76
Accumulated other comprehensive loss	(9,519)	(9,333)
Total Shareowners' Equity	39,738	38,446
Stockholders' Equity Attributable to Noncontrolling Interest	2,208	2,164
Total Equity	41,946	40,610
Total Liabilities and Equity	$ 137,380	$ 134,211