CONSOLIDATED STATEMENTS OF CASH FLOWS (UNAUDITED) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Cash Flows From Operating Activities:
Net Earnings	$ 2,029	$ (766)
Adjustments to Reconcile Net Income (Loss) to Cash Provided by (Used in) Operating Activities [Abstract]
Depreciation and amortization, net	2,668	2,477
Deferred income taxes	68	(53)
Share-based compensation	151	210
Impairment charges	339	53
Pension settlements and amortization	11	11
Divestiture gains and royalties	(135)	(173)
Asset acquisition charges	5	46
Equity investment (gains)/losses	(601)	338
Contingent consideration fair value adjustments	(510)	556
Other adjustments	233	(41)
Increase (Decrease) in Other Operating Assets and Liabilities, Net [Abstract]
Receivables	67	(743)
Inventories	106	1,448
Accounts payable	303	703
Income taxes payable	227	229
Other	(1,137)	(358)
Net Cash Provided by Operating Activities	3,824	3,937
Cash Flows From Investing Activities:
Sale and maturities of marketable debt securities	782	1,394
Purchase of marketable debt securities	(1,302)	(735)
Capital expenditures	(173)	(186)
Divestiture and other proceeds	585	205
Acquisition and other payments, net of cash acquired	(35)	(68)
Net Cash Provided by Investing Activities	(143)	610
Cash Flows From Financing Activities:
Short-term debt obligations, net	(62)	26
Repayments of Long-term Debt	(4,522)	0
Repurchase of common stock	(1,775)	(81)
Dividends	(1,108)	(1,017)
Other	172	18
Net Cash (Used in)/Provided by Financing Activities	(7,295)	(1,054)
Effect of Exchange Rate on Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents	(38)	(67)
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Period Increase (Decrease), Including Exchange Rate Effect	(3,652)	3,426
Cash, Cash Equivalents and Restricted Cash at Beginning of Period	14,973	12,820
Cash, Cash Equivalents and Restricted Cash at End of Period	$ 11,321	$ 16,246