Consolidated Balance Sheets - USD ($) $ in Millions	Mar. 31, 2022	Dec. 31, 2021
Current assets:
Cash and cash equivalents	$ 1,300	$ 2,127
Short-term investments	900
Accounts receivable, less allowances of $65 and $57, respectively	397	458
Prepaid expenses	60	73
Income taxes and other current assets	31	30
Total current assets	2,688	2,688
Property, plant and equipment, net	9,575	9,199
Other intangibles, net	4,147	4,227
Other assets	345	367
Total assets	16,755	16,481
Current liabilities:
Long-term debt due within one year	15	15
Accounts payable	694	535
Advanced billings	202	197
Accrued other taxes	178	183
Accrued interest	153	76
Pension and other postretirement benefits	46	46
Other current liabilities	425	399
Total current liabilities	1,713	1,451
Deferred income taxes	412	387
Pension and other postretirement benefits	1,580	1,672
Other liabilities	415	403
Long-term debt	7,957	7,968
Total liabilities	12,077	11,881
Equity:
Common stock, $0.01 par value (1,750,000 authorized shares, 244,476 and 244,416 shares issued and 244,476 and 244,416 shares outstanding at March 31, 2022 and December 31, 2021, respectively)	2	2
Additional paid-in capital	4,139	4,124
Retained earnings	479	414
Accumulated other comprehensive income, net of tax	58	60
Total equity	4,678	4,600
Total liabilities and equity	$ 16,755	$ 16,481