CONSOLIDATED CASH FLOW STATEMENTS (Unaudited) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
OPERATING ACTIVITIES
Net Earnings	$ 706	$ 770
Adjustments to Reconcile Net Earnings to Net Cash Provided by Operating Activities:
Depreciation	345	344
Deferred Income Taxes	40	28
Gains on Property Dispositions	(3)	(18)
Other Operating Activities	28	0
Changes in Operating Assets and Liabilities:
Accounts Receivable	(64)	(27)
Other Current Assets	(5)	(20)
Accounts Payable	53	14
Income and Other Taxes Payable	192	227
Other Current Liabilities	(60)	(140)
Net Cash Provided by Operating Activities	1,232	1,178
INVESTING ACTIVITIES
Property Additions	(306)	(381)
Proceeds from Property Dispositions	0	35
Purchases of Short-term Investments	0	(426)
Proceeds from Sales of Short-term Investments	1	936
Other Investing Activities	8	(20)
Net Cash (Used In)/Provided by Investing Activities	(297)	144
FINANCING ACTIVITIES
Long-term Debt Issued (Note 7)	0	500
Long-term Debt Repaid (Note 7)	(360)	0
Dividends Paid	(213)	(201)
Shares Repurchased	(551)	(577)
Other Financing Activities	15	(7)
Net Cash Used in Financing Activities	(1,109)	(285)
Net (Decrease)/Increase in Cash and Cash Equivalents	(174)	1,037
CASH AND CASH EQUIVALENTS
Cash and Cash Equivalents at Beginning of Period	3,129	958
Cash and Cash Equivalents at End of Period	$ 2,955	$ 1,995