Annual report [Section 13 and 15(d), not S-K Item 405]

REVENUE RECOGNITION LONG-TERM CONTRACTS AND DEFERRED AND UNBILLED REVENUE REVENUE RECOGNITION LONG-TERM CONTRATS AND DEFERRED AND UNBILLED REVENUE (Details)

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REVENUE RECOGNITION LONG-TERM CONTRACTS AND DEFERRED AND UNBILLED REVENUE REVENUE RECOGNITION LONG-TERM CONTRATS AND DEFERRED AND UNBILLED REVENUE (Details) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Revenue from Contract with Customer [Abstract]    
Revenue, Remaining Performance Obligation, Amount $ 6,300  
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]    
Revenue, Remaining Performance Obligation, Amount 6,300  
Unbilled revenue 439 $ 403
Deferred revenue 2,660 2,412
Contract with Customer, Liability, Revenue Recognized 1,100 $ 850
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2025-01-01    
Revenue from Contract with Customer [Abstract]    
Revenue, Remaining Performance Obligation, Amount 3,600  
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]    
Revenue, Remaining Performance Obligation, Amount $ 3,600  
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Period 12 months  
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2026-01-01    
Revenue from Contract with Customer [Abstract]    
Revenue, Remaining Performance Obligation, Amount $ 2,700  
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]    
Revenue, Remaining Performance Obligation, Amount $ 2,700  
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Period 10 years