NOTES PAYABLE AND LEASE OBLIGATIONS - Summary of Notes Payable (Detail 2) ¥ in Millions, $ in Millions	Dec. 31, 2023 JPY (¥)	Dec. 31, 2022 JPY (¥)	Sep. 30, 2022 JPY (¥)	Aug. 31, 2022 JPY (¥)	Apr. 30, 2021 JPY (¥)	Mar. 31, 2021 USD ($)	Dec. 31, 2020 JPY (¥)	Apr. 30, 2020 USD ($)	Mar. 31, 2020 JPY (¥)	Apr. 01, 2019 JPY (¥)	Oct. 31, 2018 JPY (¥)	Oct. 31, 2018 USD ($)	Oct. 31, 2017 JPY (¥)	Jan. 31, 2017 JPY (¥)	Dec. 31, 2016	Sep. 30, 2016 USD ($)	Aug. 31, 2010 USD ($)	Dec. 31, 2009 USD ($)
1.125% senior notes due March 2026
Debt Instrument [Line Items]
Debt instrument, interest rate	1.125%	1.125%				1.125%
Debt instrument, principal amount | $						$ 400
2.875% senior notes due October 2026
Debt Instrument [Line Items]
Debt instrument, interest rate	2.875%	2.875%														2.875%
Debt instrument, principal amount | $																$ 300
3.60% senior notes due April 2030
Debt Instrument [Line Items]
Debt instrument, interest rate	3.60%	3.60%						3.60%
Debt instrument, principal amount | $								$ 1,000
6.90% senior notes due December 2039
Debt Instrument [Line Items]
Debt instrument, interest rate	6.90%	6.90%													6.90%
Debt instrument, principal amount | $																		$ 400
6.45% senior notes due August 2040
Debt Instrument [Line Items]
Debt instrument, interest rate	6.45%	6.45%													6.45%
Debt instrument, principal amount | $																	$ 450
4.00% senior noted due October 2046
Debt Instrument [Line Items]
Debt instrument, interest rate	4.00%	4.00%														4.00%
Debt instrument, principal amount | $																$ 400
4.750% senior notes due January 2049
Debt Instrument [Line Items]
Debt instrument, interest rate	4.75%	4.75%									4.75%	4.75%
Debt instrument, principal amount | $												$ 550
.300% senior notes due September 2025
Debt Instrument [Line Items]
Debt instrument, interest rate	0.30%	0.30%							0.30%
Debt instrument, principal amount	¥ 12,400	¥ 12,400							¥ 12,400
.932% senior notes due January 2027
Debt Instrument [Line Items]
Debt instrument, interest rate	0.932%	0.932%												0.932%
Debt instrument, principal amount	¥ 60,000	¥ 60,000												¥ 60,000
1.075% senior notes due September 2029
Debt Instrument [Line Items]
Debt instrument, interest rate	1.075%	1.075%	1.075%
Debt instrument, principal amount	¥ 33,400	¥ 33,400	¥ 33,400
.500% senior notes due December 2029
Debt Instrument [Line Items]
Debt instrument, interest rate	0.50%	0.50%					0.50%
Debt instrument, principal amount	¥ 12,600	¥ 12,600					¥ 12,600
.550% senior notes due March 2030
Debt Instrument [Line Items]
Debt instrument, interest rate	0.55%	0.55%							0.55%
Debt instrument, principal amount	¥ 13,300	¥ 13,300							¥ 13,300
1.159% senior notes due October 2030
Debt Instrument [Line Items]
Debt instrument, interest rate	1.159%	1.159%									1.159%	1.159%
Debt instrument, principal amount	¥ 29,300	¥ 29,300									¥ 29,300
.633% senior notes due April 2031
Debt Instrument [Line Items]
Debt instrument, interest rate	0.633%	0.633%			0.633%
Debt instrument, principal amount	¥ 30,000	¥ 30,000			¥ 30,000
.843% senior notes due December 2031
Debt Instrument [Line Items]
Debt instrument, interest rate	0.843%	0.843%					0.843%
Debt instrument, principal amount	¥ 9,300	¥ 9,300					¥ 9,300
.750% senior notes due March 2032
Debt Instrument [Line Items]
Debt instrument, interest rate	0.75%	0.75%							0.75%
Debt instrument, principal amount	¥ 20,700	¥ 20,700							¥ 20,700
1.320% senior notes due December 2032
Debt Instrument [Line Items]
Debt instrument, interest rate	1.32%	1.32%	1.32%
Debt instrument, principal amount	¥ 21,100	¥ 21,100	¥ 21,100
.844% senior notes due April 2033
Debt Instrument [Line Items]
Debt instrument, interest rate	0.844%	0.844%			0.844%
Debt instrument, principal amount	¥ 12,000	¥ 12,000			¥ 12,000
1.488% senior notes due October 2033
Debt Instrument [Line Items]
Debt instrument, interest rate	1.488%	1.488%									1.488%	1.488%
Debt instrument, principal amount	¥ 15,200	¥ 15,200									¥ 15,200
.934% senior notes due December 2034
Debt Instrument [Line Items]
Debt instrument, interest rate	0.934%	0.934%					0.934%
Debt instrument, principal amount	¥ 9,800	¥ 9,800					¥ 9,800
.830% senior notes due March 2035
Debt Instrument [Line Items]
Debt instrument, interest rate	0.83%	0.83%							0.83%
Debt instrument, principal amount	¥ 10,600	¥ 10,600							¥ 10,600
1.039% senior notes due April 2036
Debt Instrument [Line Items]
Debt instrument, interest rate	1.039%	1.039%			1.039%
Debt instrument, principal amount	¥ 10,000	¥ 10,000			¥ 10,000
1.594% senior notes due September 2037
Debt Instrument [Line Items]
Debt instrument, interest rate	1.594%	1.594%	1.594%
Debt instrument, principal amount	¥ 6,500	¥ 6,500	¥ 6,500
1.750% senior notes due October 2038
Debt Instrument [Line Items]
Debt instrument, interest rate	1.75%	1.75%									1.75%	1.75%
Debt instrument, principal amount	¥ 8,900	¥ 8,900									¥ 8,900
1.122% senior notes due December 2039
Debt Instrument [Line Items]
Debt instrument, interest rate	1.122%	1.122%					1.122%
Debt instrument, principal amount	¥ 6,300	¥ 6,300					¥ 6,300
1.264% senior notes due April 2041
Debt Instrument [Line Items]
Debt instrument, interest rate	1.264%	1.264%			1.264%
Debt instrument, principal amount	¥ 10,000	¥ 10,000			¥ 10,000
2.108% subordinated notes due October 2047
Debt Instrument [Line Items]
Debt instrument, interest rate	2.108%	2.108%											2.108%
Debt instrument, principal amount	¥ 60,000	¥ 60,000											¥ 60,000
.963% subordinated bonds due April 2049
Debt Instrument [Line Items]
Debt instrument, interest rate	0.963%	0.963%								0.963%
Debt instrument, principal amount	¥ 30,000	¥ 30,000								¥ 30,000
1.560% senior notes due April 2051
Debt Instrument [Line Items]
Debt instrument, interest rate	1.56%	1.56%			1.56%
Debt instrument, principal amount	¥ 20,000	¥ 20,000			¥ 20,000
2.144% senior notes due September 2052
Debt Instrument [Line Items]
Debt instrument, interest rate	2.144%	2.144%	2.144%
Debt instrument, principal amount	¥ 12,000	¥ 12,000	¥ 12,000
1.958% subordinated bonds due December 2053
Debt Instrument [Line Items]
Debt instrument, interest rate	1.958%
Debt instrument, principal amount	¥ 30,000
Yen-denominated loan variable interest rate due August 2027
Debt Instrument [Line Items]
Debt instrument, interest rate	0.35%	0.33%
Debt instrument, principal amount	¥ 11,700	¥ 11,700		¥ 11,700
Yen-denominated loan variable interest rate due August 2029
Debt Instrument [Line Items]
Debt instrument, interest rate	0.45%	0.43%
Debt instrument, principal amount	¥ 25,300	¥ 25,300		25,300
Yen-denominated loan variable interest rate due August 2032
Debt Instrument [Line Items]
Debt instrument, interest rate	0.60%	0.58%
Debt instrument, principal amount	¥ 70,000	¥ 70,000		¥ 70,000