CONSOLIDATED CASH FLOW STATEMENTS - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
OPERATING ACTIVITIES
Net Earnings	$ 3,781	$ 2,765	$ 3,331
Adjustments to Reconcile Net Earnings to Net Cash
Depreciation	1,420	1,383	1,349
Deferred Income Taxes	167	180	273
Gains on Property Dispositions	(454)	(35)	(151)
Other Operating Activities	12	(32)	(69)
Changes in Operating Assets and Liabilities:
Accounts Receivable	(141)	83	45
Other Current Assets	(25)	(75)	68
Accounts Payable	128	(20)	98
Income and Other Taxes Payable	72	39	2
Other Current Liabilities	139	(25)	(96)
Net Cash Provided by Operating Activities	5,099	4,263	4,850
INVESTING ACTIVITIES
Property Additions	(1,791)	(1,626)	(1,657)
Purchases of Short-term Investments	(75)	(426)	(2,838)
Proceeds from Sales of Short-term Investments	5	1,424	2,108
Proceeds and Advances from Property Dispositions	529	56	254
Business Acquisition, Net of Cash Acquired (Note 17)	(541)	0	0
Other Investing Activities	(4)	(77)	31
Net Cash Used in Investing Activities	(1,877)	(649)	(2,102)
FINANCING ACTIVITIES
Shares Repurchased	(2,886)	(867)	(3,373)
Dividends Paid	(839)	(797)	(763)
Long-term Debt Repaid	(426)	(745)	(518)
Long-term Debt Issued (Note 10)	0	1,000	2,000
Other Financing Activities	39	(34)	6
Net Cash Used in Financing Activities	(4,112)	(1,443)	(2,648)
Net Increase in Cash and Cash Equivalents	(890)	2,171	100
CASH AND CASH EQUIVALENTS
Cash and Cash Equivalents at Beginning of Period	3,129	958	858
Cash and Cash Equivalents at End of Period	2,239	3,129	958
SUPPLEMENTAL CASH FLOW INFORMATION
Interest Paid - Net of Amounts Capitalized	718	750	717
Income Taxes Paid	$ 931	$ 664	$ 691