Employee Benefit Plans - Additional Information (Detail) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021	Jan. 03, 2022
Multiemployer Plans [Line Items]
Benefit obligations					$ 2,041,000,000
Net periodic cost	$ (6,000,000)		$ (15,000,000)
PBO discount rate	1.90%		1.90%
Net cost discount rate	1.70%
Expected benefit payment in 2023	$ 94,000,000		$ 94,000,000
Expected benefit payment in 2024	95,000,000		95,000,000
Expected benefit payment in 2025	96,000,000		96,000,000
Expected benefit payment in 2026	95,000,000		95,000,000
Expected benefit payment in 2028 and thereafter	502,000,000		$ 502,000,000
Employee Stock [Member]
Multiemployer Plans [Line Items]
Share-based compensation arrangement by share-based payment award, purchase price of common stock, percent			85.00%
Maximum number of shares purchased in offering period			500
Maximum value of common stock purchased during period under ESPP			$ 10,000,000,000
Expense related to ESPP	1,000,000	$ 1,000,000	2,000,000	$ 2,000,000
Multiemployer Pension And Other Multiemployer Benefit Plans And Trusts [Member]
Multiemployer Plans [Line Items]
Multiemployer Plan Contributions	27,000,000	24,000,000	51,000,000	43,000,000
Profit Sharing Plan [Member]
Multiemployer Plans [Line Items]
Expense recognized	4,000,000	$ 4,000,000	6,000,000	$ 7,000,000
Post-retirement Benefit Plans [Member]
Multiemployer Plans [Line Items]
Benefit obligations	$ 4,000,000		$ 4,000,000
PBO discount rate	3.00%		3.00%
Post-retirement Benefit Plans [Member] | Maximum [Member]
Multiemployer Plans [Line Items]
Expected benefit payment in 2023	$ 1,000,000		$ 1,000,000
Expected benefit payment in 2024	1,000,000		1,000,000
Expected benefit payment in 2025	1,000,000		1,000,000
Expected benefit payment in 2026	1,000,000		1,000,000
Expected benefit payment in 2027	1,000,000		1,000,000
Expected benefit payment in 2028 and thereafter	$ 1,000,000		$ 1,000,000