Supplemental Other Comprehensive Income (Loss) Information - Schedule of Comprehensive Income (Loss) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Total Other comprehensive income (loss), net of tax	$ (66)	$ (87)	$ (189)
Cumulative translation adjustments
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Other comprehensive income (loss), Pretax	(119)	49	(233)
Total Other comprehensive income (loss), net of tax	(30)	27	(218)
Pension and other benefits
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Other comprehensive income (loss), before reclassifications, Pretax	(125)	(204)	(21)
Reclassification from AOCI, Pretax	74	72	69
Other comprehensive income (loss), Pretax	(51)	(132)	48
Other comprehensive income (loss), before reclassifications, Net of Tax	(97)	(154)	(16)
Reclassification from AOCI, Net of Tax	57	54	54
Total Other comprehensive income (loss), net of tax	(40)	(100)	38
Cash flow hedges
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Other comprehensive income (loss), before reclassifications, Pretax	(3)	(9)
Reclassification from AOCI, Pretax	0	(6)
Other comprehensive income (loss), Pretax	(3)	(15)
Other comprehensive income (loss), before reclassifications, Net of Tax	(2)	(7)
Reclassification from AOCI, Net of Tax	0	(5)
Total Other comprehensive income (loss), net of tax	(2)	(12)
Cash flow hedges
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Other comprehensive income (loss), before reclassifications, Pretax			10
Reclassification from AOCI, Pretax			3
Other comprehensive income (loss), Pretax			13
Other comprehensive income (loss), before reclassifications, Net of Tax			8
Reclassification from AOCI, Net of Tax			2
Total Other comprehensive income (loss), net of tax			10
Accumulated Other Comprehensive Income (Loss)
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Other comprehensive income (loss), Pretax	(173)	(98)	(172)
Total Other comprehensive income (loss), net of tax	$ (72)	$ (85)	$ (170)