Fair Value Measurements - Fair Values, Financial Instruments (Details) - USD ($) $ in Millions	Dec. 31, 2022	Dec. 27, 2022	Dec. 31, 2021
Ensign Natural Resources
Financial liabilities
Current liabilities	$ 31	$ 36
Noncurrent liabilities	58
Fair Value
Financial assets
Current assets	0		$ 11
Other noncurrent assets	10		12
Total financial assets	10		23
Financial liabilities
Other current liabilities	140		99
Long-term debt, including current portion	5,806		4,705
Deferred credits and other liabilities	73		46
Total financial liabilities	6,019		4,850
Carrying Amount
Financial assets
Current assets	0		10
Other noncurrent assets	28		27
Total financial assets	28		37
Financial liabilities
Other current liabilities	204		136
Long-term debt, including current portion	5,948		4,033
Deferred credits and other liabilities	73		46
Total financial liabilities	$ 6,225		$ 4,215