Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Percentage of target investment allocation to total plan assets. Includes, but is not limited to, percentage on weighted-average basis if more than one plan.

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RETIREMENT BENEFITS - Plan Assets (Details)	Dec. 31, 2026	Dec. 31, 2025	Dec. 31, 2024
U.S. \| Pension Plans
Defined Benefit Plan Disclosure
Weighted average allocation (as a percent)		100.00%	100.00%
U.S. \| Postretirement Benefit Plans
Defined Benefit Plan Disclosure
Weighted average allocation (as a percent)		100.00%	100.00%
U.S. \| Equity securities \| Pension Plans
Defined Benefit Plan Disclosure
Weighted average allocation (as a percent)		7.00%	7.00%
U.S. \| Equity securities \| Postretirement Benefit Plans
Defined Benefit Plan Disclosure
Weighted average allocation (as a percent)		7.00%	7.00%
U.S. \| Equity securities \| Forecast \| Minimum
Defined Benefit Plan Disclosure
Target asset allocation (as a percent)	0.00%
U.S. \| Equity securities \| Forecast \| Maximum
Defined Benefit Plan Disclosure
Target asset allocation (as a percent)	13.00%
U.S. \| Debt securities \| Pension Plans
Defined Benefit Plan Disclosure
Weighted average allocation (as a percent)		71.00%	71.00%
U.S. \| Debt securities \| Postretirement Benefit Plans
Defined Benefit Plan Disclosure
Weighted average allocation (as a percent)		71.00%	71.00%
U.S. \| Debt securities \| Forecast \| Minimum
Defined Benefit Plan Disclosure
Target asset allocation (as a percent)	62.00%
U.S. \| Debt securities \| Forecast \| Maximum
Defined Benefit Plan Disclosure
Target asset allocation (as a percent)	100.00%
U.S. \| Real assets(1) \| Pension Plans
Defined Benefit Plan Disclosure
Weighted average allocation (as a percent)		5.00%	5.00%
U.S. \| Real assets(1) \| Postretirement Benefit Plans
Defined Benefit Plan Disclosure
Weighted average allocation (as a percent)		5.00%	5.00%
U.S. \| Real assets(1) \| Forecast \| Minimum
Defined Benefit Plan Disclosure
Target asset allocation (as a percent)	0.00%
U.S. \| Real assets(1) \| Forecast \| Maximum
Defined Benefit Plan Disclosure
Target asset allocation (as a percent)	9.00%
U.S. \| Private equity \| Pension Plans
Defined Benefit Plan Disclosure
Weighted average allocation (as a percent)		7.00%	7.00%
U.S. \| Private equity \| Postretirement Benefit Plans
Defined Benefit Plan Disclosure
Weighted average allocation (as a percent)		7.00%	7.00%
U.S. \| Private equity \| Forecast \| Minimum
Defined Benefit Plan Disclosure
Target asset allocation (as a percent)	0.00%
U.S. \| Private equity \| Forecast \| Maximum
Defined Benefit Plan Disclosure
Target asset allocation (as a percent)	7.00%
U.S. \| Other investments \| Pension Plans
Defined Benefit Plan Disclosure
Weighted average allocation (as a percent)		10.00%	10.00%
U.S. \| Other investments \| Postretirement Benefit Plans
Defined Benefit Plan Disclosure
Weighted average allocation (as a percent)		10.00%	10.00%
U.S. \| Other investments \| Forecast \| Minimum
Defined Benefit Plan Disclosure
Target asset allocation (as a percent)	0.00%
U.S. \| Other investments \| Forecast \| Maximum
Defined Benefit Plan Disclosure
Target asset allocation (as a percent)	13.00%
Non-U.S. \| Weighted Average \| Pension Plans
Defined Benefit Plan Disclosure
Weighted average allocation (as a percent)		100.00%	100.00%
Non-U.S. \| Weighted Average \| Postretirement Benefit Plans
Defined Benefit Plan Disclosure
Weighted average allocation (as a percent)		100.00%	100.00%
Non-U.S. \| Equity securities \| Minimum \| Pension Plans
Defined Benefit Plan Disclosure
Target asset allocation (as a percent)		0.00%	0.00%
Non-U.S. \| Equity securities \| Minimum \| Postretirement Benefit Plans
Defined Benefit Plan Disclosure
Target asset allocation (as a percent)		0.00%	0.00%
Non-U.S. \| Equity securities \| Maximum \| Pension Plans
Defined Benefit Plan Disclosure
Target asset allocation (as a percent)		46.00%	49.00%
Non-U.S. \| Equity securities \| Maximum \| Postretirement Benefit Plans
Defined Benefit Plan Disclosure
Target asset allocation (as a percent)		12.00%	37.00%
Non-U.S. \| Equity securities \| Weighted Average \| Pension Plans
Defined Benefit Plan Disclosure
Weighted average allocation (as a percent)		11.00%	18.00%
Non-U.S. \| Equity securities \| Weighted Average \| Postretirement Benefit Plans
Defined Benefit Plan Disclosure
Weighted average allocation (as a percent)		12.00%	36.00%
Non-U.S. \| Equity securities \| Forecast \| Minimum \| Pension Plans
Defined Benefit Plan Disclosure
Target asset allocation (as a percent)	0.00%
Non-U.S. \| Equity securities \| Forecast \| Minimum \| Postretirement Benefit Plans
Defined Benefit Plan Disclosure
Target asset allocation (as a percent)	0.00%
Non-U.S. \| Equity securities \| Forecast \| Maximum \| Pension Plans
Defined Benefit Plan Disclosure
Target asset allocation (as a percent)	46.00%
Non-U.S. \| Equity securities \| Forecast \| Maximum \| Postretirement Benefit Plans
Defined Benefit Plan Disclosure
Target asset allocation (as a percent)	16.00%
Non-U.S. \| Debt securities \| Minimum \| Pension Plans
Defined Benefit Plan Disclosure
Target asset allocation (as a percent)		0.00%	0.00%
Non-U.S. \| Debt securities \| Minimum \| Postretirement Benefit Plans
Defined Benefit Plan Disclosure
Target asset allocation (as a percent)		83.00%	59.00%
Non-U.S. \| Debt securities \| Maximum \| Pension Plans
Defined Benefit Plan Disclosure
Target asset allocation (as a percent)		100.00%	100.00%
Non-U.S. \| Debt securities \| Maximum \| Postretirement Benefit Plans
Defined Benefit Plan Disclosure
Target asset allocation (as a percent)		100.00%	100.00%
Non-U.S. \| Debt securities \| Weighted Average \| Pension Plans
Defined Benefit Plan Disclosure
Weighted average allocation (as a percent)		78.00%	73.00%
Non-U.S. \| Debt securities \| Weighted Average \| Postretirement Benefit Plans
Defined Benefit Plan Disclosure
Weighted average allocation (as a percent)		84.00%	60.00%
Non-U.S. \| Debt securities \| Forecast \| Minimum \| Pension Plans
Defined Benefit Plan Disclosure
Target asset allocation (as a percent)	0.00%
Non-U.S. \| Debt securities \| Forecast \| Minimum \| Postretirement Benefit Plans
Defined Benefit Plan Disclosure
Target asset allocation (as a percent)	79.00%
Non-U.S. \| Debt securities \| Forecast \| Maximum \| Pension Plans
Defined Benefit Plan Disclosure
Target asset allocation (as a percent)	100.00%
Non-U.S. \| Debt securities \| Forecast \| Maximum \| Postretirement Benefit Plans
Defined Benefit Plan Disclosure
Target asset allocation (as a percent)	100.00%
Non-U.S. \| Real assets(1) \| Minimum \| Pension Plans
Defined Benefit Plan Disclosure
Target asset allocation (as a percent)		0.00%	0.00%
Non-U.S. \| Real assets(1) \| Maximum \| Pension Plans
Defined Benefit Plan Disclosure
Target asset allocation (as a percent)		12.00%	16.00%
Non-U.S. \| Real assets(1) \| Weighted Average \| Pension Plans
Defined Benefit Plan Disclosure
Weighted average allocation (as a percent)		1.00%	1.00%
Non-U.S. \| Real assets(1) \| Forecast \| Minimum \| Pension Plans
Defined Benefit Plan Disclosure
Target asset allocation (as a percent)	0.00%
Non-U.S. \| Real assets(1) \| Forecast \| Maximum \| Pension Plans
Defined Benefit Plan Disclosure
Target asset allocation (as a percent)	15.00%
Non-U.S. \| Other investments \| Minimum \| Pension Plans
Defined Benefit Plan Disclosure
Target asset allocation (as a percent)		0.00%	0.00%
Non-U.S. \| Other investments \| Minimum \| Postretirement Benefit Plans
Defined Benefit Plan Disclosure
Target asset allocation (as a percent)		0.00%	0.00%
Non-U.S. \| Other investments \| Maximum \| Pension Plans
Defined Benefit Plan Disclosure
Target asset allocation (as a percent)		100.00%	100.00%
Non-U.S. \| Other investments \| Maximum \| Postretirement Benefit Plans
Defined Benefit Plan Disclosure
Target asset allocation (as a percent)		4.00%	4.00%
Non-U.S. \| Other investments \| Weighted Average \| Pension Plans
Defined Benefit Plan Disclosure
Weighted average allocation (as a percent)		10.00%	8.00%
Non-U.S. \| Other investments \| Weighted Average \| Postretirement Benefit Plans
Defined Benefit Plan Disclosure
Weighted average allocation (as a percent)		4.00%	4.00%
Non-U.S. \| Other investments \| Forecast \| Minimum \| Pension Plans
Defined Benefit Plan Disclosure
Target asset allocation (as a percent)	0.00%
Non-U.S. \| Other investments \| Forecast \| Minimum \| Postretirement Benefit Plans
Defined Benefit Plan Disclosure
Target asset allocation (as a percent)	0.00%
Non-U.S. \| Other investments \| Forecast \| Maximum \| Pension Plans
Defined Benefit Plan Disclosure
Target asset allocation (as a percent)	100.00%
Non-U.S. \| Other investments \| Forecast \| Maximum \| Postretirement Benefit Plans
Defined Benefit Plan Disclosure
Target asset allocation (as a percent)	5.00%