Leases (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Lessee, Lease, Description [Line Items]
Operating lease expense	$ 50	$ 46	$ 40
Variable lease payments not included in the measurement of lease liabilities	19	20	21
Short-term lease payments not included in the measurement of lease liabilities	9	7	9
Cash paid for amounts included in the measurement of lease liabilities	47	42	42
Lease obligations obtained in exchange for right-of-use assets (non-cash)	39	47	$ 241
Operating lease right of use assets	181	192
Operating lease liabilities - current (in Other current liabilities)	41	40
Operating lease liabilities - noncurrent	151	163
Total operating lease liabilities	$ 192	$ 203
Weighted-average remaining lease term—operating leases (years)	6 years 6 months 18 days	6 years 7 months 2 days
Weighted-average discount rate—operating leases	2.81%	3.12%
2022	$ 46
2023	39
2024	31
2025	23
2026	19
After 2025	54
Total Lease Payments	212
Less: Imputed Interest	(20)
Debt, principal amount	$ 6,650	$ 7,250
Operating Lease, Liability, Current, Statement of Financial Position [Extensible List]	Other current liabilities	Other current liabilities
Minimum
Lessee, Lease, Description [Line Items]
Lessee, Operating Lease, Term of Contract	1 year
Maximum
Lessee, Lease, Description [Line Items]
Lessee, Operating Lease, Term of Contract	15 years