CONSOLIDATED STATEMENTS OF CASH FLOWS $ in Millions	3 Months Ended	9 Months Ended
	Sep. 30, 2022 USD ($)	Sep. 30, 2022 USD ($)	Sep. 30, 2021 USD ($)
OPERATING ACTIVITIES
Net income	$ 578	$ 1,521	$ 1,525
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization		2,443	3,142
Gain on sale of business	(593)	(593)	0
Deferred income taxes		618	431
Provision for uncollectible accounts		99	80
Net gain on early retirement of debt		(9)	(8)
Unrealized loss on investments		197	9
Stock-based compensation	23	71	89
Changes in current assets and liabilities:
Accounts receivable		(27)	20
Accounts payable		45	(240)
Accrued income and other taxes		25	7
Other current assets and liabilities, net		(323)	(263)
Retirement benefits		(440)	(126)
Changes in other noncurrent assets and liabilities, net		141	207
Other, net		126	21
Net cash provided by operating activities		3,894	4,894
INVESTING ACTIVITIES
Capital expenditures		(2,183)	(2,052)
Proceeds from sale of business		2,707	0
Proceeds from sale of property, plant and equipment, and other assets		67	90
Other, net		3	13
Net cash provided by (used in) investing activities		594	(1,949)
FINANCING ACTIVITIES
Net proceeds from issuance of long-term debt		0	1,881
Payments of long-term debt		(3,899)	(2,604)
Net proceeds from (payments on) revolving line of credit		80	(150)
Dividends paid		(780)	(834)
Repurchases of common stock		0	(909)
Other, net		(33)	(52)
Net cash used in financing activities		(4,632)	(2,668)
Net (decrease) increase in cash, cash equivalents and restricted cash		(144)	277
Cash, cash equivalents and restricted cash at beginning of period		409	427
Cash, cash equivalents and restricted cash at end of period	265	265	704
Supplemental cash flow information:
Income taxes paid, net		(58)	(102)
Interest paid (net of capitalized interest of $48 and $39)		(1,092)	(1,144)
Supplemental noncash information regarding investing activities:
Sale of property, plant and equipment in exchange for note receivable		0	56
Cash, cash equivalents and restricted cash:
Cash and cash equivalents	252	252	635
Cash and cash equivalents included in Assets held for sale	0	0	39
Restricted cash included in Other current assets	1	1	2
Restricted cash included in Other, net noncurrent assets	12	12	28
Total	$ 265	$ 265	$ 704