Consolidated Balance Sheets - USD ($) $ in Millions	Mar. 31, 2024	Dec. 31, 2023
Statement of Financial Position [Abstract]
Cash and Cash Equivalents, at Carrying Value	$ 11	$ 11
Trade (net of allowance for doubtful receivables 2020: $-; 2019: $-)	21	16
Accounts Receivable from Related Companies	1,111	700
Other	17	14
Income taxes receivable	26	238
Notes receivable from related companies	659	799
Inventories	251	227
Other current assets	26	36
Total current assets	2,122	2,041
Investments in related companies	237	237
Other investments	14	15
Noncurrent receivables	69	99
Noncurrent receivables from related companies	1,598	1,598
Total investments	1,918	1,949
Property	5,480	5,406
Less accumulated depreciation	4,540	4,512
Net property	940	894
Intangible assets (net of accumulated amortization 2020: $92; 2019: $90)	7	7
Operating lease right-of-use assets	82	85
Deferred Tax Assets, Deferred Income	246	257
Deferred charges and other assets	33	39
Total other assets	368	388
Total Assets	5,348	5,272
Notes payable to related companies	24	68
Notes Payable - Other	0	1
Long-term debt due within one year	1	1
Trade	314	286
Accounts Payable to Related Company	464	420
Other	17	12
Operating lease liabilities - current	17	17
Income taxes payable	35	30
Asbestos-related liabilities - current	82	80
Accrued and other current liabilities	107	116
Total current liabilities	1,061	1,031
Long-Term Debt	259	259
Pension and other postretirement benefits - noncurrent	385	395
Asbestos-related liabilities - noncurrent	762	787
Operating lease liabilities - noncurrent	65	68
Other noncurrent obligations	554	567
Liabilities, Other than Long-term Debt, Noncurrent	1,766	1,817
Common stock (authorized: 1,000 shares of $0.01 par value each; issued: 935.51 shares)	0	0
Additional paid-in capital	1,034	1,034
Retained earnings	2,560	2,474
Accumulated other comprehensive loss	(1,332)	(1,343)
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest	2,262	2,165
Total Liabilities and Equity	$ 5,348	$ 5,272