CONSOLIDATED CASH FLOW STATEMENTS (Unaudited) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019	[1]
OPERATING ACTIVITIES
Net Earnings	$ 770	$ 834
Adjustments to Reconcile Net Earnings to Net Cash Provided by Operating Activities:
Depreciation	344	330
Deferred Income Taxes	28	51
Gain on Property Dispositions	(18)	(27)
Other Operating Activities	0	(33)
Changes in Operating Assets and Liabilities:
Accounts Receivable	(27)	(56)
Other Current Assets	(20)	22
Accounts Payable	14	74
Income and Other Taxes Payable	227	150
Other Current Liabilities	(140)	(172)
Net Cash Provided by Operating Activities	1,178	1,173
INVESTING ACTIVITIES
Property Additions	(381)	(353)
Proceeds from Property Dispositions	35	48
Purchases of Short-term Investments	(426)	(813)
Proceeds from Sales of Short-term Investments	936	250
Other Investing Activities	(20)	(2)
Net Cash Provided by (Used In) Investing Activities	144	(870)
FINANCING ACTIVITIES
Long-term Debt Issued (Note 7)	500	1,000
Dividends Paid	(201)	(195)
Shares Repurchased	(577)	(796)
Other Financing Activities	(7)	18
Net Cash (Used in) Provided by Financing Activities	(285)	27
Net Increase in Cash and Cash Equivalents	1,037	330
CASH AND CASH EQUIVALENTS
Cash and Cash Equivalents at Beginning of Period	958	858
Cash and Cash Equivalents at End of Period	$ 1,995	$ 1,188

[1] Certain prior year data has been reclassified to conform to the current presentation.