Consolidated Statement of Comprehensive Income - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Net Income	$ 904	$ 1,294	$ 1,542
Adjustments and gains (losses) arising during the year	39	28	(94)
Reclassifications of adjustments and (gains) losses into Net Income	0	0	(4)
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, before Tax	39	28	(98)
Tax (expense) benefit	0	(4)	6
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax	39	24	(92)
Unrealized gains (losses) arising during the year	(8)	(39)	32
Reclassification of (gains) losses into Net Income	18	10	22
Other Comprehensive (Income) Loss, Pension and Other Postretirement Benefit Plans, Unrealized Gains (Losses), before Tax	10	(29)	54
Pension and post-retirement benefit plans (tax impact)	(2)	7	(13)
Pension and post-retirement benefit plans (net of tax impact)	8	(22)	41
Unrealized gains (losses) arising during the year	(99)	(51)	19
Reclassification of (gains) losses into Net Income	6	(25)	(39)
Other Comprehensive Income (Loss), Derivatives Qualifying as Hedges, before Tax	(93)	(76)	(20)
Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI on Derivatives, Tax	(23)	(20)	(6)
Other Comprehensive Income (Loss), Derivatives Qualifying as Hedges, Net of Tax	(70)	(56)	(14)
Other Comprehensive Income (Loss), Net of Tax	(23)	(54)	(65)
Comprehensive Income	$ 881	$ 1,240	$ 1,477