Consolidated Balance Sheets - USD ($) $ in Millions	Mar. 31, 2023	Dec. 31, 2022
Current assets:
Cash and cash equivalents	$ 1,132	$ 322
Short-term investments	900	1,750
Accounts receivable, less allowances of $43 and $47, respectively	430	438
Prepaid expenses	63	57
Income taxes and other current assets	19	30
Total current assets	2,544	2,597
Property, plant and equipment, net	12,748	11,850
Other intangibles, net	3,826	3,906
Other assets	280	271
Total assets	19,398	18,624
Current liabilities:
Long-term debt due within one year	15	15
Accounts payable	1,368	1,410
Advanced billings	207	194
Accrued other taxes	102	137
Accrued interest	182	104
Pension and other postretirement benefits	39	39
Other current liabilities	398	396
Total current liabilities	2,311	2,295
Deferred income taxes	560	558
Pension and other postretirement benefits	1,032	1,044
Other liabilities	493	483
Long-term debt	9,839	9,110
Total liabilities	14,235	13,490
Equity:
Common stock, $0.01 par value (1,750,000 authorized shares, 245,232 and 245,021 issued, and outstanding at March 31, 2023 and December 31, 2022, respectively)	2	2
Additional paid-in capital	4,220	4,198
Retained earnings	858	855
Accumulated other comprehensive income, net of tax	83	79
Total equity	5,163	5,134
Total liabilities and equity	$ 19,398	$ 18,624