Reclassifications From Accumulated Other Comprehensive Loss (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Reclassifications from accumulated other comprehensive (loss) income
Other income (expense), net	$ 44	$ 48	$ 132	$ 136
Tax (benefit)	87	66	202	181
Reclassifications, after tax	(293)	(138)	(1,065)	(517)
Interest Expense	40	39	110	119
Reclassification out of Accumulated Other Comprehensive Income | UK Window Group
Reclassifications from accumulated other comprehensive (loss) income
Other income (expense), net				(14)
Reclassification out of Accumulated Other Comprehensive Income | Actuarial losses, net
Reclassifications from accumulated other comprehensive (loss) income
Other income (expense), net	7	5	20	16
Tax (benefit)	(2)	(1)	(5)	(4)
Reclassifications, after tax	5	4	15	12
Reclassification out of Accumulated Other Comprehensive Income | Accumulated Gain (Loss), Cash Flow Hedge, Including Noncontrolling Interest
Reclassifications from accumulated other comprehensive (loss) income
Tax (benefit)	0	0	0	0
Reclassifications, after tax	0	0	(1)	(1)
Reclassification out of Accumulated Other Comprehensive Income | Accumulated Gain (Loss), Cash Flow Hedge, Including Noncontrolling Interest | Interest Rate Swap
Reclassifications from accumulated other comprehensive (loss) income
Interest Expense	$ 0	$ 0	$ 1	$ 1