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Quarterly report pursuant to Section 13 or 15(d)

ACCUMULATED OTHER COMPREHENSIVE LOSS - Changes in AOCI (loss) related to shareholders' equity (Details)

v3.21.2
ACCUMULATED OTHER COMPREHENSIVE LOSS - Changes in AOCI (loss) related to shareholders' equity (Details) - USD ($)
$ in Millions
3 Months Ended
Jun. 30, 2021
Mar. 31, 2021
Jun. 30, 2020
Mar. 31, 2020
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward] Ìý Ìý Ìý Ìý
Beginning balance $ (120) $ (133) $ (317) $ (319)
Other comprehensive income (loss) before reclassifications 51 7 2 (6)
Net (income) loss reclassified from accumulated other comprehensive loss 3 6 9 8
Ending balance (66) (120) (306) (317)
Postretirement Benefit Liability, net of tax Ìý Ìý Ìý Ìý
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward] Ìý Ìý Ìý Ìý
Beginning balance (128) (135) (310) (316)
Other comprehensive income (loss) before reclassifications 0 0 0 0
Net (income) loss reclassified from accumulated other comprehensive loss 7 7 6 6
Ending balance (121) (128) (304) (310)
Foreign Currency Translation Ìý Ìý Ìý Ìý
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward] Ìý Ìý Ìý Ìý
Beginning balance 2 3 (1) 0
Other comprehensive income (loss) before reclassifications 0 (1) 1 (1)
Net (income) loss reclassified from accumulated other comprehensive loss 0 0 0 0
Ending balance 2 2 0 (1)
Derivative Financial Instruments, net of tax Ìý Ìý Ìý Ìý
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward] Ìý Ìý Ìý Ìý
Beginning balance 6 (1) (6) (3)
Other comprehensive income (loss) before reclassifications 51 8 1 (5)
Net (income) loss reclassified from accumulated other comprehensive loss (4) (1) 3 2
Ending balance $ 53 $ 6 $ (2) $ (6)