Consolidated Balance Sheets - USD ($) $ in Millions	Jun. 30, 2022	Dec. 31, 2021
Current assets:
Cash and cash equivalents	$ 678	$ 2,127
Short-term investments	2,300
Accounts receivable, less allowances of $45 and $57, respectively	420	458
Prepaid expenses	79	73
Income taxes and other current assets	25	30
Total current assets	3,502	2,688
Property, plant and equipment, net	10,108	9,199
Other intangibles, net	4,067	4,227
Other assets	358	367
Total assets	18,035	16,481
Current liabilities:
Long-term debt due within one year	15	15
Accounts payable	818	535
Advanced billings	199	197
Accrued other taxes	174	183
Accrued interest	120	76
Pension and other postretirement benefits	46	46
Other current liabilities	407	399
Total current liabilities	1,779	1,451
Deferred income taxes	481	387
Pension and other postretirement benefits	1,427	1,672
Other liabilities	422	403
Long-term debt	9,130	7,968
Total liabilities	13,239	11,881
Equity:
Common stock, $0.01 par value (1,750,000 authorized shares, 244,969 and 244,416 shares issued and outstanding at June 30, 2022 and December 31, 2021, respectively)	2	2
Additional paid-in capital	4,152	4,124
Retained earnings	580	414
Accumulated other comprehensive income, net of tax	62	60
Total equity	4,796	4,600
Total liabilities and equity	$ 18,035	$ 16,481